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从实际需求出发分析了高效空调器用压缩机应具备的调节能力。使用DeST软件模拟计算了北京、上海、广州三地的轻型办公建筑和居住建筑的全年逐时负荷,统计了建筑全年冷热负荷随室外环境的变化情况;为不同地域的不同建筑选配了空调(热泵)装置,模拟研究了空调(热泵)装置全年运行时系统压比随室外温度的变化情况。研究结果表明:实际的空调(热泵)系统大部分时间运行在较小的室内外温差工况下,此时小型空调(热泵)装置需要提供较小的制冷/制热量,同时系统需求压比大幅减小;从提高空调设备全年能效水平的角度考虑,高效空调器用压缩机应具有向小容量调节的能力,同时需具有良好的向小压比调节的能力。
From the actual demand analysis of the high efficiency air conditioner compressor should have the ability to adjust. DeST software was used to simulate the annual hourly load of light office buildings and residential buildings in Beijing, Shanghai and Guangzhou, and the changes of the building’s annual cooling load and heat load with the outdoor environment were calculated. For different construction options in different regions The air conditioner (heat pump) device was used to simulate the change of the system pressure ratio with the outdoor temperature when the air conditioner (heat pump) was operating year-round. The results show that the actual air conditioning (heat pump) system runs most of the time under the condition of small indoor and outdoor temperature difference, and the small air conditioning (heat pump) unit needs to provide smaller cooling / heating capacity at the same time, Reduce; from the perspective of improving the annual energy efficiency of air conditioning equipment, high efficiency air conditioner compressor should have the ability to adjust to a small capacity, while the need to have a good ability to adjust to a small pressure ratio.