The working principle of the rapid temperature change test chamber is based on the reversed Carnot cycle, which consists of two isothermal processes and two adiabatic processes. In this cycle, the refrigerant is first adiabatically compressed by the compressor to a higher pressure, causing its temperature to rise. The high-temperature refrigerant then undergoes an isothermal heat exchange with the surrounding medium in the condenser, releasing heat to the environment. After that, the refrigerant expands adiabatically through a valve, resulting in a significant drop in temperature. Finally, it absorbs heat from the object being cooled in the evaporator, lowering its temperature. This continuous cycle enables the system to achieve efficient cooling performance. The refrigeration system of the rapid temperature change test chamber is designed with high-quality components to ensure reliable and stable operation. For low-temperature cooling, the system uses a German "Gulun" semi-enclosed compressor unit (7.5××2). Other key refrigeration components are sourced from internationally renowned brands such as RANCO (USA), SPORLAN (USA), ALFALAVAL (Switzerland), DANFOSS (Denmark), CASTEL (Italy), and Heron Palace (Japan). The high-temperature stage uses R404A refrigerant, while the low-temperature stage employs environmentally friendly R23. A Swedish "Alfa Laval" plate exchanger connects the two stages, functioning both as a high-temperature evaporator and a low-temperature condenser. To ensure safe and stable operation, the system includes various protection mechanisms, such as high and low voltage control, overpressure protection, and overload protection. Additionally, high and low pressure gauges are installed at the respective terminals to monitor system performance in real-time. The cooling capacity is adjusted using a split-flow method, allowing for precise temperature control. All refrigeration components are imported from top global manufacturers, ensuring superior quality and reliability. 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 test chambers, high and low temperature impact test chambers, constant temperature and humidity test chambers, and more. Our products are widely used in industries such as electronics, automotive, aerospace, and materials science for quality assurance and product validation. If you have any questions or need further information, please feel free to contact us. We look forward to serving you and building a long-term partnership. Round Coffee Table,Wood Coffee Table,Marble Coffee Table,Modern Coffee Table Mexarts Household Products Co., Ltd. , https://www.mexartsglobal.com