Questions regarding the design temperature and pressure on the high-pressure side of ammonia refrigeration systems – seeking assistance
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According to the refrigeration plant design specifications, the design temperature for the high-pressure side is 150 degrees, with a design pressure of 2.0. However, for the liquid ammonia coming out of the evaporative condenser, if the design temperature is 150 degrees, then the pressure will not be 2.0. I would appreciate it if experts could advise me on how to choose the appropriate design temperature and pressure. Thank you
There’s no need for a corresponding relationship between 150 and 2.0, right? The design takes into account the highest temperature and maximum pressure; these two conditions do not necessarily occur at the same time, and this value of 150 is not always required. For example, if the equipment needs to withstand a high temperature of 60°C, it is completely fine to design for 150°C as a safety margin