Chillers play a significant role in the hydrogen energy industry chain, especially in hydrogen production through electrolysis, fuel cell systems, and hydrogen storage and transportation
A chiller operates on thermodynamic principles to transfer heat via refrigerant phase change. The vapor-compression cycle involves four key components: compressor, condenser, expansion valve, and evaporator. Refrigerant circulates through these components, absorbing heat at low pressure (evaporator) and rejecting heat at high pressure (condenser). This closed-loop process enables continuous cooling for applications ranging from 5°C chilled water to -40°C process cooling.
Industrial chillers provide precise temperature control for manufacturing processes. Using robust scroll or screw compressors, these systems maintain stable cooling from +30°C to -60°C. Process chillers often incorporate secondary heat exchangers, corrosion-resistant materials, and high-pressure controls to withstand harsh factory environments in plastics, chemical, and metal processing industries.
Modern chillers achieve remarkable energy efficiency through advanced technologies. Variable-speed compressors adjust cooling capacity dynamically, while plate heat exchangers maximize thermal transfer. Eco-friendly refrigerants like R513A minimize global warming potential (GWP<1), helping facilities meet sustainability goals with energy savings up to 50% compared to conventional systems.
Compact air-cooled chillers integrate all components in a single footprint under 1m². Microchannel condensers and scroll compressors enable quiet operation (<60dB), ideal for laboratories and telecom shelters. These portable units deliver 0.5-20kW cooling capacity with plug-and-play installation, requiring only electrical power and minimal airflow.
Low-temperature chillers (-80°C to -150°C) employ cascade or two-stage compression systems. Specialized compressors handle refrigerants like R23 and R508B, while brazed plate evaporators prevent frost buildup. These systems are critical for pharmaceutical freeze-drying, semiconductor testing, and special materials research.
Modular chiller plants offer scalable cooling through multiple independent circuits. Each 50-500RT module features autonomous controls, allowing capacity adjustment from 10-100% without efficiency loss. Shared pumping systems and N+1 redundancy ensure uninterrupted operation for data centers and hospitals.
A chiller is an energy-efficient machine that achieves cooling through a vapor-compression or absorption refrigeration cycle. It is widely used in industrial production, commercial buildings, and residential applications. Its working principle relies on the phase change of refrigerant within a closed-loop system to transfer heat and produce cooling effects.
A renewable-powered alkaline electrolysis system with absorption heat pump-based thermal regulation was constructed to mitigate efficiency losses caused by power intermittency.