The working principle of the rapid temperature change test chamber is based on the reverse Carnot cycle, which consists of two isothermal and two adiabatic processes. The refrigerant is first compressed adiabatically by the compressor, increasing its pressure and temperature. This high-pressure gas then releases heat through the condenser in an isothermal process, transferring the heat to the surrounding environment. After that, the refrigerant passes through an expansion valve, where it undergoes adiabatic expansion, causing a significant drop in temperature. Finally, the cooled refrigerant absorbs heat from the object being cooled in the evaporator, completing the cycle. This continuous process allows for efficient and controlled temperature changes within the chamber. The refrigeration system of the rapid temperature change test chamber is designed with high-quality components to ensure reliable performance. For low-temperature cooling, a German "Gulun" semi-enclosed compressor unit (7.5××2) is used, paired with other premium imported parts such as RANCO, SPORLAN, ALFALAVAL, DANFOSS, CASTEL, and Heron Palace. The system uses R404A for high-temperature stages and environmentally friendly R23 for low-temperature operations. A Swedish "Alfa Laval" plate exchanger connects the two stages, serving as both a high-temperature evaporator and a low-temperature condenser, enhancing overall efficiency. To ensure safe and stable operation, the system includes multiple protection mechanisms, such as high and low voltage control, overpressure, and overload protection. Pressure gauges are installed at both high and low-pressure terminals to monitor system performance in real time. Additionally, the cooling capacity is adjusted using a split-flow method, allowing for precise temperature control. All refrigeration components are sourced from well-known international brands, ensuring reliability and durability. Dear Customer, Thank you for your interest in our products. In addition to the rapid temperature change test chamber, we also offer a wide range of environmental testing equipment, including thermal shock chambers, high-low temperature impact chambers, constant temperature and humidity chambers, temperature and humidity control boxes, and more. If you're looking for a reliable and high-performance testing solution, feel free to contact us for more information. We look forward to serving you! Upholstered Bed,Upholstered Bed Frame,Upholstered Platform Bed,Upholstered Queen Bed Mexarts Household Products Co., Ltd. , https://www.mexartsglobal.com