In equipment design, what do the terms \"normal temperature\" and \"normal pressure\" refer to? What are the temperature range and pressure range?
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In equipment design, what do the terms \"normal temperature\" and \"normal pressure\" refer to? What are the temperature range and pressure range? How are the design temperature and design pressure for design inputs calculated? Can the temperature at normal conditions, in the north for example, drop to around minus 10 degrees? Can normal pressure turn into negative pressure?
In equipment design, the design temperature of normal temperature usually refers to the average outdoor ambient temperature, while the design pressure of normal pressure refers to atmospheric pressure. The temperature range is generally considered to be around 5°C to 35°C, while the pressure is at standard atmospheric pressure, approximately 101.325 kPa. When specifying design inputs, the design temperature and design pressure should be determined based on the specific application environment and the most extreme operating conditions. Temperatures in the north may drop to around minus 10 degrees, but this is generally not considered normal temperature. At normal pressure, negative pressure is not reached; it remains at the level of atmospheric pressure. .