Adam GUO

Dry cooler/Heat exchanger/Oil cooler/Aftercooler R&D manufacturer. (ZHCOOLER GROUP)

[Adam GUO @Adam_Guoy]

High-Pressure Air System for Post-Cooler of Large High-Pressure Spraying Equipment
This American-style high-pressure air system is designed for the post-cooler supporting large industrial high-pressure spraying equipment. Adopting the American high-pressure pressure-stabilizing heat exchange structure, it adapts to the continuous high-pressure air supply conditions of spraying operations. It rapidly cools high-temperature and high-pressure compressed air, removes waste heat and moisture, ensures stable spraying air pressure and uniform coating surface, and applies to high-pressure spraying of large components in shipbuilding and heavy industries.

Core technical parameters comply with American industrial high-pressure standards: rated working pressure 0.8–1.0 MPa, maximum allowable pressure 1.2 MPa, matching air supply requirements of high-pressure spraying equipment. Inlet air temperature ≤180℃; after heat exchange via the post-cooler, outlet air temperature stably ≤45℃ with high temperature difference control precision, preventing sagging and bubbles caused by high-temperature airflow. Air handling capacity reaches 35 m³/min, suitable for continuous operation of large spraying equipment.

The system uses water-cooled heat exchange with American pressure regulating assemblies. Rated cooling water pressure 0.3 MPa, cooling water inlet temperature ≤32℃, specific water consumption 0.25 m³/h with stable heat transfer efficiency. It adopts DN80 high-pressure air pipeline, and sealing structure meets American industrial sealing standards for pressure resistance and leakage prevention. Equipped with an adaptive pressure regulation module, the air pressure drop ≤0.015 MPa for stable output. It filters impurities and condensed water in compressed air, greatly improving coating quality and equipment service life for all-weather heavy-duty industrial operation.

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[Adam GUO @Adam_Guoy]

Technical Solution for 3200 CFM Compressed Air Cooler
This solution custom‑designs an air‑cooled compressed air cooler for 3200 CFM (5440 m³/h) flow rate, applied downstream of industrial air compressors for cooling and purification. It rapidly reduces the temperature of hot compressed air, separates moisture and contaminants, and stabilizes downstream air quality with reliable performance, low pressure drop and easy maintenance.

Key Technical Parameters
Nominal air handling capacity: 3200 CFM; nominal working pressure: 0.7 MPa; maximum allowable pressure: 1.0 MPa. Compressed air inlet temperature: ≤120 °C; outlet temperature under standard condition: ≤42 °C. Overall equipment pressure drop: ≤0.02 MPa. Ambient temperature for air‑cooled operation: ≤38 °C, suitable for general industrial operating conditions.

Equipment Structure & Working Principle
Adopting copper tube‑fin heat exchange structure with sufficient heat exchange area, the unit removes heat from compressed air via forced convection. An integrated high‑efficiency gas‑water separator intercepts condensed water and trace oil mist. Condensate is discharged automatically by auto drain valves to prevent re‑entrainment of impurities. Anti‑corrosion housing and pressure‑resistant heat‑exchange pipelines ensure long service life.

Performance Advantages
Stable large‑flow operation at 3200 CFM with high heat‑exchange efficiency and low energy consumption. Low‑pressure‑drop design minimizes power loss of air source and guarantees stable air supply. Fully automatic unattended operation fits continuous industrial production, and effectively extends service life of downstream filters and dryers.

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[Adam GUO @Adam_Guoy]

Liquid‑Cooling Retrofit: Engineering Principles for Legacy Air‑Cooled IDC AI Upgrade

Numerous legacy data centers operate at 15‑30 kW per rack and face urgent liquid‑cooling retrofits for AI expansion. Copying green‑field AI‑center designs is not feasible; constraints including floor loading, pipe‑chase space, power capacity and existing monitoring compatibility must be addressed. The mainstream approach deploys distributed rack‑mount CDUs plus cold plates, leveraging outdoor dry coolers instead of modifying building chilled‑water mains. Secondary supply temperature is set 28‑32 °C for upgraded 30‑60 kW racks.

Critical retrofit parameters: hydrostatic test at 1.5 × working pressure with 30‑minute zero‑pressure‑drop hold; initial coolant conductivity <25 μS/cm; circulating flushing until particle size <50 μm; manifold branch‑flow deviation controlled within ±10 % to prevent GPU thermal throttling from insufficient flow. A hybrid‑cooling architecture is recommended: cold‑plates for high‑power GPUs while retaining original air‑cooling for memory and power supplies to lower CAPEX.

Leak‑detection sensors are fitted under racks with CDU emergency interlock. Legacy CRAC units remain as backup redundancy. Floor load capacity shall be re‑evaluated, as distributed CDUs weigh 300‑500 kg each. Post‑retrofit PUE typically improves from 1.45 (air‑cooled baseline) to 1.20‑1.25. For legacy facilities, full immersion should be avoided in early phases. Step‑by‑step cold‑plate deployment with phased performance and O&M validation mitigates mass‑scale compute‑stability risks.

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Single‑Phase Immersion Cooling: Thermal Path for >100 kW Ultra‑High‑Density Racks

When rack power surpasses 100 kW, cold‑plate solutions meet performance boundaries. Single‑phase immersion cooling submerges complete servers in dielectric fluid, removing heat by sensible‑heat exchange and eliminating multi‑layer thermal interfaces. It delivers PUE as low as 1.06‑1.08, drastically reduces fan count and cuts facility noise by 15‑30 dB.

System components comprise immersion tanks, circulation pumps, plate‑fin heat exchangers and filtration‑degassing units. Mineral‑oil‑based synthetic hydrocarbon dielectric fluid features dielectric strength >15 kV/mm, operating temperature window 35‑55 °C and flow velocity 0.15‑0.25 m/s. Heat‑exchanger fluid ΔT is controlled at 8‑12 °C; outdoor dry coolers provide free‑cooling heat rejection. Rack power density can readily reach 120‑150 kW, suitable for large‑scale AI training clusters.

Despite superior thermal performance, immersion brings engineering challenges: optical‑module and cable material compatibility, fluid volatile loss and transformed maintenance workflows. Dielectric fluid requires regular particulate filtration; sealing and evaporation suppression are key design considerations. Capital expenditure exceeds cold‑plate cooling, yet favorable 6‑year+ TCO can be realized. Immersion is better suited for green‑field hyperscale AI campuses; retrofitting existing facilities faces constraints from rack loading and building structures and demands thorough thermal simulation and reliability validation.

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Micro‑Channel Cold Plates: Enabler for AI Chip High Heat‑Flux Dissipation

AI chip heat‑flux keeps rising, with local GPU heat‑density exceeding 80 W/cm². Micro‑channel cold plates capture chip heat via dense miniature flow‑passages to boost convective heat‑transfer performance. Main manufacturing routes include precision etching, micro‑milling and additive manufacturing, with aluminum and copper substrates both widely adopted. For ~1000 W‑class GPUs, single cold‑plate flow is designed for 0.8‑1.2 L/min, channel differential pressure ≤30 kPa, and maximum surface temperature ≤80 °C. Surface temperature must stay ≥5 °C above dew‑point to avoid condensation.

Flow‑channel geometry balances heat‑transfer area and flow resistance: overly dense channels raise pumping power, while over‑wide passages generate hot‑spots. TIM thermal resistance between cold‑plate and GPU shall be kept below 0.03 °C·cm²/W. Coolant filtration precision must reach 50 μm to prevent micro‑channel clogging; pH is maintained 7.5‑9.0 to suppress galvanic corrosion.

Current industry pain points include high customization for diverse GPU models and complicated spare‑part management. Pressure drop from blind‑mate quick‑couplers adds to total system resistance. Single‑phase cold‑plate upper limit is around 2500 W per chip; two‑phase cold plates are emerging for next‑gen higher‑power chips. Micro‑channel cold‑plate design relies on CFD simulation to verify flow uniformity and avoid flow‑short‑circuit, ensuring throttling‑free operation under full compute load.

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Dry‑Cooler Free‑Cooling: Energy‑Saving Foundation for High‑Temperature Liquid Cooling

Driven by ASHRAE W32/W40 high‑temperature liquid‑cooling specifications, closed‑circuit dry coolers eliminate cooling towers and evaporative water consumption, achieving WUE of 0‑0.05 L/kWh and making them ideal for water‑scarce AI data centers. Composed of plate‑fin heat exchangers and EC variable‑speed fans, dry coolers reject primary‑loop heat directly to ambient air and enable year‑round free‑cooling without chiller operation.

Typical operating conditions: ethylene‑glycol primary‑loop inlet 38‑42 °C, return 32‑36 °C; design ambient dry‑bulb 40 °C. Fan power accounts for 8‑12 % of total cooling consumption. Vacuum‑brazed aluminum plate‑fin cores operate at face velocity 2.2‑2.8 m/s with unit air‑side pressure drop ≤180 Pa. In North and Northwest China, annual free‑cooling duration exceeds 70 %, drastically cutting chiller runtime and bringing PUE below 1.12.

Field challenges include summer heat‑rejection derating, fin fouling and fan noise. Design practice requires thermal margin verification under peak ambient temperature, G4 inlet air filters and acoustic treatment. Layout must prevent hot‑air recirculation; full‑load free‑cooling is achievable below 20 °C ambient. Beyond energy savings, recovered 35‑45 °C waste heat can feed district heating networks, realizing waste‑heat valorization and improving overall data‑center energy economics.

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Cooling Distribution Unit (CDU): Thermal Heart of Liquid‑Cooled Data Centers

The CDU acts as the core hub of liquid‑cooling systems, thermally isolating the primary outdoor cooling loop and secondary server liquid‑cooling loop. It integrates plate heat exchangers, variable‑speed circulation pumps, filtration, pressure‑charging make‑up modules and PLC‑based monitoring, available in rack‑mounted distributed and central cabinet‑style configurations.

For 120 kW AI racks, secondary‑side flow is sized at 1.5 L/min per kW, yielding total rack flow up to 180 L/min. Secondary supply: 25‑32 °C; return: 35‑45 °C; allowable differential pressure: 0.05‑0.15 MPa. The primary loop connects to dry coolers using 30 % ethylene‑glycol solution at 0.2‑0.5 MPa working pressure. Key performance metrics: heat‑exchanger effectiveness ≥92 %, N+1 pump redundancy, leak‑detection response <2 s, Modbus‑RTU telemetry for temperature, pressure, flow and conductivity.

Insufficient CDU thermal margin is a frequent engineering pitfall; 10‑20 % load oversizing is recommended. Distributed rack‑mount CDUs suit legacy‑facility retrofits; central CDUs simplify O&M for hyperscale AI campuses. CDU faults may trigger rack‑wide compute throttling. Therefore sealing integrity, ≤50 μm filtration precision and air‑venting mechanisms are critical design parameters determining long‑term uptime of liquid‑cooled infrastructure.

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Cold‑Plate Liquid Cooling: Mainstream Thermal Solution for High‑Density AI Compute

As AI large‑model clusters are widely deployed, rack power density has reached 80‑120 kW, while the economical upper limit of traditional air‑cooling remains only 30‑40 kW. Direct cold‑plate liquid cooling (DLC) has become the preferred thermal solution for new‑build AI data centers. Micro‑channel cold plates attach directly to CPU/GPU heat sources. Deionized ethylene‑glycol coolant is used on the secondary loop with per‑cold‑plate flow of 0.5‑1.5 L/min, 8‑15 °C inlet‑outlet temperature difference, and contact thermal resistance as low as 0.05 °C/W, stabilizing GPU junction temperature within 65‑75 °C.

The system consists of CDU, rack manifolds, micro‑channel cold plates and outdoor dry coolers. Secondary‑loop operating pressure: 0.1‑0.4 MPa; coolant conductivity ≤25 μS/cm, pH 7.5‑9.0 to mitigate corrosion and micro‑channel fouling. Primary‑loop dry‑cooler supply temperature ranges 32‑40 °C to enable full‑year free‑cooling, delivering PUE of 1.10‑1.15 and 25‑35 % power saving versus air‑cooling.

Cold‑plate cooling enjoys ~65 % market share and supports 30‑80 kW racks with good server hardware compatibility and low retrofitting risk, though auxiliary air‑cooling is still required for memory and power supplies. Project execution must focus on manifold flow balance, quick‑coupler leakage risk and cold‑plate flow resistance to eliminate local hot‑spots. With mass deployment of GB200‑class AI hardware, engineering standards for cold‑plate liquid cooling are rapidly maturing to support stable operation of ten‑thousand‑GPU clusters. (396 words)

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Development Trends of Cold Plate Liquid Cooling and Immersion Liquid Cooling for NVIDIA Chips
With the large-scale deployment of high-power GPUs including NVIDIA Blackwell and Rubin, liquid cooling has replaced air cooling as the standard thermal solution for AI computing power. Cold plate liquid cooling and immersion liquid cooling will develop in parallel for a long time in a tiered application layout instead of a replacement relationship.

Cold plate liquid cooling serves as the mainstream solution at present and the standardized route promoted by NVIDIA HGX and DGX platforms. Coolant circulates in a closed loop inside microchannel cold plates fitted to GPUs without major modifications to server hardware, suiting retrofits of existing data centers and mass production of large-scale clusters. It stably supports rack power densities of 50–100 kW. Moving forward, cold plates will evolve toward integrated microchannels and 45℃ warm water cooling. Standardization of CDU and quick connectors will keep advancing to lower PUE and operational costs, remaining the preferred option for medium-to-high density computing clusters in the medium term.

Immersion liquid cooling includes single-phase and two-phase phase-change types, where entire servers are submerged in dielectric coolant. It delivers superior heat transfer capacity to support rack densities exceeding 200 kW, ideal for next-generation high-power GPUs and ten-thousand-GPU supercomputing clusters. Nevertheless, it demands high upfront infrastructure investment, higher dielectric fluid consumption and complex equipment maintenance, making it less cost-effective for legacy facility retrofits. It is currently piloted only in newly built top-tier training clusters. Driven by PFAS fluorochemical supply and environmental regulations, the industry is accelerating the adoption of domestically produced alternative dielectric fluids while validating the maturity of two-phase cooling technology.

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Technical Description of Composite Heat Exchanger for Methanol Fuel Cell Engine
The composite heat exchanger for methanol fuel cell engine adopts an integrated plate and microchannel composite structure. Designed for three core operating conditions including low-temperature methanol reforming, constant-temperature stack operation, and exhaust waste heat recovery, it can simultaneously realize feedstock preheating, stack heat dissipation, exhaust waste heat recycling and water vapor reuse. It effectively solves the common problems of traditional heat exchangers such as low heat transfer efficiency, poor working condition adaptability and unstable temperature control, and is widely applicable to vehicle-mounted and stationary methanol fuel cell power systems. Adopting an anti-corrosion aluminum alloy substrate with a sealed pressure-bearing structure, the equipment features lightweight design and excellent medium corrosion resistance, satisfying the compact integration and installation requirements of engines.
Core technical parameters are as follows: the rated heat transfer power is 3.5 kW, matching 1–5 kW methanol fuel cell engines; the normal operating temperature ranges from 0℃ to 180℃, precisely adapting to the low-temperature methanol reforming and constant-temperature stack operation. The rated system working pressure is 1.6 MPa, and the maximum pressure drop on both gas and liquid sides is ≤ 150 Pa, ensuring low operating resistance and energy consumption. As a gas-water composite heat exchange device, it has a standard operating overall heat transfer coefficient of 80–120 W/(m²·K) and a comprehensive heat transfer efficiency of ≥ 95%. The stable preheating temperature of methanol feedstock is 120℃–150℃, meeting the optimal conditions for low-temperature reforming reaction, and the exhaust waste heat recovery efficiency is ≥ 88%.

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Plate-Fin Heat Exchanger for Air Compression Treatment (Houston Industrial Version) Tailored for the air compression treatment working conditions of oil, gas, chemical and general industries in Houston, USA, our customized plate-fin heat exchanger serves as a core high-efficiency heat exchange device for air compressor post-treatment systems, perfectly adapting to local high-pressure and continuous industrial production scenarios. Adopting the vacuum brazed aluminum alloy integral forming process, the equipment features a compact and lightweight structure, with only half the volume of traditional shell-and-tube heat exchangers. It greatly saves factory installation space and meets the compact equipment layout requirements of Houston factories. Specially designed for the cooling and purification of compressed air, this heat exchanger accurately cools high-temperature compressed air at 80℃-120℃ discharged from air compressors to a standard process temperature of 30℃-40℃. It efficiently separates moisture and impurities from the air, significantly reducing the load on drying and filtering equipment and improving the cleanliness of compressed air. The unique fin flow channel structure greatly increases the heat exchange area and delivers a much higher heat transfer coefficient than conventional equipment, ensuring stable and excellent heat exchange efficiency. Meanwhile, it strictly controls air pressure drop to reduce equipment energy consumption and operational loss. Featuring excellent tightness, strong airflow impact resistance and stable pressure resistance, the equipment can stably operate under industrial compressed air working conditions of 0.7-1.6 MPa for a long time and adapt to the complex industrial environment in Houston. With the core advantages of high energy efficiency, low maintenance requirements and long service life, it effectively guarantees stable production line operation, helps enterprises cut energy costs and improve production efficiency, and acts as a preferred heat exchange solution for industrial air compression and purification systems in Houston.
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Introduction on 2MW External Dry Cooler for Single-Phase Immersion Container Cooling System
The 2MW external plate-fin dry cooler serves as the core heat dissipation terminal of the single-phase immersion container cooling system. It is specially designed for high-power computing power containers and energy storage containers. Adopting an efficient plate-fin heat exchange structure, it eliminates the water-spray heat dissipation mode of traditional cooling towers and realizes full dry-type closed-loop heat dissipation, which is suitable for all-weather outdoor operation and maintenance scenarios.
The core heat exchange unit of the dry cooler adopts an aluminum plate-fin structure, which is formed by alternately stacking and brazing multiple layers of corrugated fins and partition plates. Its heat exchange area density reaches 850㎡/m³, improving the heat exchange efficiency by more than 30% compared with conventional tube-fin structures. The compact structure greatly reduces the equipment footprint. The equipment maintains a stable rated heat dissipation power of 2000kW, matching the secondary heat exchange demand of dielectric coolant in single-phase immersion systems.
The core operating parameters are precisely adapted to industrial scenarios: under standard working conditions, the coolant inlet temperature is 55℃, the outlet temperature is 42℃, and the ambient reference temperature is 35℃, with a maximum air volume of 180,000m³/h. Equipped with 6 variable-frequency axial flow fans with a total operating power consumption of ≤85kW, it supports 0-100% stepless speed regulation and can intelligently adjust the heat dissipation power according to equipment load. The equipment shell is made of hot-dip galvanized steel plate for anti-corrosion, with an IP54 protection grade, capable of operating in a wide temperature range from -20℃ to 45℃.
Leveraging the high heat exchange advantages of the plate-fin structure, the dry cooler consumes no water resources and features low operation and maintenance costs.

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Introduction to the Performance of 80kW Hydrogen Engine Heat Exchanger
The 80kW hydrogen engine heat exchanger is a core component of the fuel cell thermal management system. With a rated heat exchange power of 80kW, it is suitable for small and medium-sized vehicle-mounted hydrogen power systems. It mainly undertakes the functions of stack temperature control, hydrogen heat exchange and system waste heat regulation to ensure the stable and efficient operation of the engine. Adopting a liquid-gas heat exchange structure, the heat exchanger uses low-conductivity deionized water as the cooling medium, matching the optimal operating temperature range of 55℃ to 80℃ for hydrogen engines, and can quickly balance the heat generated by the electrochemical reaction of the fuel cell stack.
Featuring a compact plate-fin design, the equipment delivers high heat exchange efficiency, low pressure drop and excellent tightness. It can accurately control the heat exchange temperature difference to avoid overheating damage to the proton exchange membrane. Meanwhile, it adapts to the operating conditions of the hydrogen circulation system, prevents hydrogen medium leakage, and meets vehicle safety standards. Under full operating conditions, its 80kW rated heat exchange power can match the peak heat load of the engine, meet the heat dissipation requirements of dynamic working conditions such as idling, constant speed and acceleration, and effectively suppress temperature fluctuations with high temperature control accuracy.
Compared with traditional heat exchange components, this heat exchanger features a lightweight structure and high integration, fitting the limited installation space of vehicles. Its stable heat exchange performance can significantly improve the power generation efficiency of hydrogen engines, reduce energy consumption loss and extend the service life of fuel cell stacks. It serves as a key core component for the safe, energy-saving and long-term operation of 80kW-class hydrogen commercial vehicles and special power equipment.

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Technical Description of 120kW Plate-Fin Dry Cooler with Adiabatic Spray System for Data Center CUD
This equipment is an external plate-fin dry cooler specially used for cabinet-level heat dissipation of data center CUD, with a rated heat exchange capacity of 120kW. Equipped with an intelligent adiabatic spray cooling system, it breaks the limitation of traditional dry coolers that can only approach the dry-bulb temperature. Relying on the wet-bulb adiabatic cooling principle, it achieves cooling capacity lower than the ambient dry-bulb temperature and adapts to the annual energy-saving heat dissipation working conditions of data centers. Adopting a vacuum brazed plate-fin heat exchange structure, the equipment features higher heat exchange density and stronger dust accumulation resistance compared with conventional tube-fin dry coolers, suitable for outdoor all-weather installation and operation.
The core technical parameters accurately match CUD heat dissipation requirements: rated heat exchange capacity is 120kW under standard working conditions with an inlet air dry-bulb temperature of 35℃ and wet-bulb temperature of 28℃, and the water supply temperature is 45/32℃. Equipped with a low-pressure adiabatic spray system with atomization particle size ≤10μm, it causes no liquid water drift and no fin wetting. It reduces the air wet-bulb temperature through water adiabatic evaporation, lowering the inlet air temperature by 5–8℃ compared with the ambient dry-bulb temperature and greatly improving the cooling capacity under high-temperature working conditions. The heat exchange core is made of 3003 anti-corrosion aluminum alloy with louver-enhanced fin structure, achieving a comprehensive heat transfer coefficient ≥70W/(㎡·℃) and an effective heat exchange area of 9.2㎡.
The dry cooler supports adaptive frequency conversion control. The adiabatic spray system automatically activates during high temperatures and shuts down for pure air cooling under normal temperature conditions, balancing cooling efficiency and energy saving performance.

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[Adam GUO @Adam_Guoy]

37kW Oil Cooling Heat Exchanger for Compressed Air System
The oil cooling heat exchanger for compressed air systems is a core supporting heat dissipation device for air compressors. It is mainly used to remove residual heat generated during the operation of compressor oil and ensure the constant-temperature operation of lubricating oil. Designed with a rated heat exchange power of 37kW, it adapts to the heat dissipation working conditions of small and medium-sized screw air compressors.
Adopting a high-efficiency plate heat exchange structure, the heat exchanger features a high heat transfer coefficient and compact size. It uses circulating cooling water as the heat exchange medium. High-temperature compressor oil flows inside the heat exchange plates, while cooling water flows reversely outside to realize rapid heat transfer through metal plates and effectively take away heat from the lubricating oil. With a 37kW heat exchange power, the device can fully cover the heat load of the supporting air compressor under full-load operation, stably maintaining the compressor oil temperature within the optimal working range of 35℃ to 55℃.
Adapted to conventional industrial working conditions, the equipment has excellent pressure and temperature resistance. It effectively avoids problems caused by excessive oil temperature, including lubricant aging, oil-gas separation failure, and equipment overload shutdown. Compared with traditional heat dissipation devices, this customized high-power heat exchanger improves heat exchange efficiency by more than 20% with uniform and dead-angle-free heat dissipation and reduces energy consumption loss.

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High-Performance Cooling | 1MW CDU External Dry Cooler: A New Paradigm for Efficient and Low-Carbon Data Centers
With the explosive growth of AI computing power, high-density computing clusters have raised stringent requirements for heat dissipation stability and energy efficiency. Featuring robust core technical specifications, the 1MW high-power CDU external dry cooler serves as a core standard configuration for natural heat dissipation in medium and large liquid-cooled data centers, reshaping new benchmarks for cooling and energy conservation in computer rooms.
The equipment delivers a rated cooling capacity of 1000kW, fully supporting the full-load operation of high-power cabinet clusters. Equipped with a precision liquid cooling heat exchange system, it operates under standard working conditions with primary-side inlet water at 35℃ and outlet water at 47℃. It perfectly matches the circulating demand of secondary-side coolant with stable heat exchange temperature difference, effectively preventing overheating and frequency reduction of computing devices.
Boasting outstanding energy efficiency, it adopts a dry non-evaporative heat exchange structure that eliminates the water replenishment loss of traditional water cooling and greatly improves the annual natural cooling utilization rate, helping stabilize the data center PUE below 1.2. Fitted with an N+1 redundant pump set and variable frequency speed control system, it supports dynamic load adaptation from 10% to 100%. Its energy efficiency under low-load conditions is 120% higher than traditional equipment, perfectly adapting to the phased capacity expansion of computing power.
It achieves superior reliability and maintainability with a dual protection system of 50μm standard filtration and precision filtration, and all-stainless steel pipelines that prevent blockage and corrosion. Compatible with SNMP and RESTful API intelligent protocols, it connects with computer room monitoring systems for real-time monitoring of flow, temperature and pressure data.

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Exclusive for 200kW Methanol Engines! All-in-One Combined Radiator Pioneers a New High-Efficiency Heat Dissipation Paradigm
Methanol-fueled engines have become a mainstream option for construction machinery and commercial power equipment thanks to their cleanliness, high efficiency and cost-effectiveness. However, high-temperature heat dissipation, component corrosion and space redundancy under 200kW high-power operating conditions remain persistent industry pain points. Tailored for 200kW methanol-fueled engines, this all-in-one combined radiator precisely solves core industry challenges and reshapes the thermal management standards for high-power power equipment.
Different from traditional split heat dissipation equipment, this radiator integrates water cooling, oil cooling and intake air cooling functions. Its integrated and compact structure greatly reduces cabin occupation and achieves weight reduction and efficiency improvement, perfectly matching the power output demands of 200kW high-power engines. Adopting corrosion-resistant and pressure-resistant materials and an integrally molded sealing structure, it effectively prevents leakage and aging, adapting to long-term high-frequency heavy-duty operating conditions while resisting the slight corrosiveness of methanol fuel.
Equipped with intelligent temperature control heat dissipation technology and a high-power heat dissipation duct design, the radiator dynamically matches the heat output of 200kW engines under full working conditions and precisely stabilizes the overall machine temperature. It avoids failures such as high-temperature shutdown and oil emulsification, significantly reducing operation and maintenance costs. Compared with traditional heat dissipation solutions, it features higher heat dissipation efficiency and lower energy consumption, effectively extending the service life of core engine components and balancing environmental performance and operational stability.

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2500CFM High-Pressure Aftercooler: The Hardcore Thermal Management Choice for 3.5MPa Conditions

In high-pressure compressed air systems, the aftercooler is not a supporting role—it is a critical component that determines downstream equipment lifespan and air quality. Our 2500CFM compressed air aftercooler is purpose-built for 3.5MPa high-pressure operating conditions, featuring a plate-fin heat exchange core engineered to tackle the dual challenges of extreme pressure and temperature.

**No Compromise Under High Pressure, Higher Heat Transfer Efficiency**

At 3.5MPa working pressure, compressed air outlet temperatures often exceed 150°C. This product features a high-strength aluminum alloy plate-fin core, integrally formed via vacuum brazing with ample pressure design margin—ensuring no deformation or leakage during continuous 3.5MPa operation. The internal turbulator fin structure significantly enhances the heat transfer coefficient, rapidly cooling high-temperature compressed air to below 40°C and effectively reducing the load on downstream dryers.

**2500CFM High Flow Rate with Controlled Pressure Drop**

For high-flow applications, the flow channels are optimized through CFD simulation. While maintaining a 2500CFM processing capacity, pressure loss is kept to an extremely low level, avoiding wasted compressor energy efficiency. Fin spacing and partition thickness have been iteratively refined to balance heat transfer efficiency and fouling resistance, lowering long-term maintenance costs.

**Stable and Reliable in Demanding Conditions**

Whether in petrochemical, power, metallurgy, or advanced manufacturing, 3.5MPa high-pressure air systems demand near-exacting reliability from their aftercoolers. Every unit undergoes hydrostatic and air-tightness testing before leaving the factory, with carbon steel/stainless steel flange interfaces for easy installation and compatibility with multiple compressor brands.

Choosing the 2500CFM high-pressure aftercooler means choosing long-term, stable thermal management for your compressed air system. Message us for customized solutions.

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Technical Scheme and Detailed Data Analysis of 3500 CFM Compressed Air Aftercooler
This scheme designs an aftercooler for a 3500 CFM (approximately 5950 m³/h) industrial compressed air system. It is mainly used to reduce the exhaust temperature of air compressors and remove gaseous water vapor. Adapted to the continuous operation condition of screw air compressors, the equipment meets the stable air supply requirements of industrial assembly lines while balancing heat exchange efficiency and operational stability.
The core technical parameters are precisely matched to operating conditions: the rated processing air volume is 3500 CFM with a working pressure ranging from 0.8 MPa to 1.6 MPa for conventional industrial applications. The inlet air temperature is controlled within the conventional exhaust range of 80–110 ℃ for air compressors. Under standard working conditions, the outlet air temperature is ≤ 40 ℃, and the temperature drop efficiency reaches over 65% at an ambient temperature of 32 ℃. Adopting a water-cooled heat exchange structure, the equipment supports a cooling water inlet temperature ≤ 30 ℃, a rated cooling water flow of 8–10 m³/h, and a water pressure of 0.2–0.4 MPa, which is fully compatible with industrial circulating water systems.
High-efficiency copper finned tubes are adopted as the core heat exchange components with an optimized heat exchange area of 28 ㎡, which enhances heat exchange efficiency by expanding the contact area and eliminating heat exchange dead zones. The shell is made of carbon steel with anti-corrosion spraying treatment, featuring pressure resistance and rust resistance to adapt to humid workshop environments. Equipped with a high-efficiency air-water separation structure, the equipment intercepts more than 98% of liquid water vapor, effectively reducing the operating load of downstream dryers and filters.
The overall equipment pressure drop is ≤ 0.03 MPa. The low-loss design avoids air pressure and energy consumption waste.

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V-type Microchannel Dry Cooler for Cold Plate Heat Dissipation
Designed for a heat dissipation capacity of 200 kW, the V-type microchannel external dry cooler forms a liquid cooling system together with cold plates, widely adopted in thermal management of data centers, energy storage systems and high-power electrical equipment. Heat is captured by cold plates attached to heat sources, and the heat-carrying fluid flows through pipelines to the outdoor V-type microchannel dry cooler. Heat is dissipated to ambient air via forced convection in dry operation without spray water, eliminating the need for cooling towers and simplifying maintenance.

The dry cooler features a V-shaped layout. Two sets of microchannel heat exchange cores are arranged at an included angle. Compared with flat structures, it reduces footprint and optimizes airflow distribution to avoid dead zones. Aluminum microchannel flat tubes serve as core heat transfer components. Thanks to the small equivalent channel diameter, the specific heat transfer area is greatly enlarged, delivering a higher fluid-side heat transfer coefficient than conventional copper tube-fin structures. It delivers the rated 200 kW heat rejection within a compact envelope.

During operation, high-temperature medium flows into the microchannel cores, while fans force ambient air across heat transfer surfaces to discharge heat directly into the atmosphere. Dry operation prevents scaling and corrosion caused by water, making it suitable for water-scarce regions. The V-type arrangement cuts fan power consumption while balancing cooling performance and noise control.

Matching the closed liquid cooling loop of cold plates, the system transfers heat from heat sources to circulating fluid via cold plates, then continuously rejects the 200 kW thermal load through the microchannel dry cooler. Compact and lightweight, the unit is easy to integrate into containerized modules with strong environmental adaptability, serving as a reliable external heat rejection solution for enclosed cold plate cooling of high-power equipment.

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