Refrigeration system

This paper examines the feasibility of operating screw‑type and centrifugal chillers in parallel within a refrigeration system. By analyzing their differences in control logic, load modulation, and water‑system pressure drop, it outlines the key considerations for parallel operation,…

This paper investigates whether screw compressors and scroll compressors operate under coupled control when integrated into refrigeration systems. It provides a detailed analysis of their mutual influence on load distribution and system‑parameter response, and outlines the key technologies…

This article provides a detailed analysis of the fundamental concepts and physical significance of the operating pressure and discharge pressure in heat pump compressors. The operating pressure reflects the suction-side conditions of the system, while the discharge pressure…

During operation, the volumetric flow rates in the suction and discharge lines of a refrigeration compressor differ significantly. Based on the principles of mass conservation and gas compression, an increase in discharge pressure reduces the specific volume of…

In the operation of screw refrigeration machines, there is a direct interrelationship between discharge pressure and liquid‑supply pressure. Typically, an increase in discharge pressure results in a corresponding rise in liquid‑supply pressure, as both occur on the high‑pressure…

This paper compares scroll compressor and screw compressor from four aspects: structural principle, energy efficiency performance, operating characteristics and typical applications, and points out that the former is superior in medium and small cooling capacity, high portion load…