How is the safety valve for a heating and hot water system calculated?
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There is a heating system in which the flow rate of the heating circulation pump is 600 cubic meters per hour, and the operating pressure is 0.6 MPa. There is a safety valve at the inlet of this circulation pump. What is the throat area of the safety valve? A slightly opening type safety valve is used. According to the formula for the throat area, A = qm/102.1(√P1). Is the value of qm calculated based on 600 cubic meters per hour? If so, the resulting value would be approximately 5342 CM2? What exactly is wrong? The formula above is taken from the power pipeline design manual. I asked for advice!
Something must be wrong with it being this big; since it’s from a manual, the symbols in the formulas must have explanations
Qm refers to the maximum flow rate in the pipeline; the unit of the symbol is correct. I’d like some guidance