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Dear experts: In TSG 21-2016, regarding the operating pressure at the specified temperature for liquefied gas pressure vessels stored at normal temperatures in Table 3-1, what does it mean by \"the pressure of the gas at 50°C under the maximum filling volume specified in the design\"? What is the normal temperature in the pressure vessel industry in °C? Are there any standards to follow?
In the TSG 21-2016 standard, for liquefied gas pressure vessels stored at normal temperatures, the “normal temperature” referred to in Table 3-1 generally denotes the standard ambient temperature, which is around 20°C. However, at the specified operating pressure, the design must take into account the pressure of the gas inside the container at 50°C under maximum filling conditions, to ensure that the pressure vessel can still operate safely at this extreme temperature. The standard does not specify the exact value for “room temperature”; it is generally understood to mean ambient temperature, which is approximately 20°C. The focus of this standard is to ensure that, at higher temperatures (such as 50°C), liquefied gases do not cause safety issues for the containers due to excessive pressure. Therefore, during design and use, focus should be placed on pressure management and container performance at a maximum temperature of 50°C. .
Although it’s AI upstairs, the answers are good and the meaning is correct. Additionally, room temperature refers to the indoor temperature; normal temperature can include outdoor conditions. Room temperature can be determined in accordance with GB/T228.1, ranging from 10~35°C or 23±5°C.
It was designed to be high, not low. When calculating the operating pressure of the container, use T=50°C and V=maximum capacity.
The design is generally set at around 50 degrees