Seeking advice on steam-based heating systems.
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Does the heat dissipation capacity of a radiator using 0.2MPa steam as the heating medium refer to a steam pressure of 0.2MPa inside the radiator? If so, then how are the design pressure and design temperature of the system determined? The design pressure should be higher than 0.2 MPa, right? How is it determined?
Of course it should be larger – in the event of a malfunction, the operating pressure might be higher than the pressure you designed for. Generally, a design pressure that is 1.5 times the operating pressure is sufficient; moreover, the pressure required for leak detection and pressure retention must also be higher than the design pressure. But since you only have 2 KG, you can just go with a simple setup. However, you must not settle for a shoddy solution. The higher the intake temperature, the smaller the heat exchange area can be, or the lower the intake volume can be; conversely, it needs to be larger. There’s one thing you need to keep in mind: the heat exchanger must be equipped with a drain valve, and the same should be done at the lowest point of the pipes. This way, there will definitely be no problems
The design of pipeline systems, including pressure and temperature, needs to be determined based on the parameters of the medium (with industry regulations in place). Generally, the design pressure = maximum operating pressure + 0.1 MPa; the design temperature = maximum operating temperature + 20