| 摘要 |
A method for improving efficiency in heating and cooling systems which includes the steps of providing speed and pressure monitoring devices for monitoring and measuring the operational speed (OS) and the head (H<SUB>R</SUB>) of the fan or pump and providing a flow rate monitoring device for monitoring and measuring the fluid flow rate (Q) for fluid flowing through the fan or pump. The OS, H<SUB>R </SUB>and Q for the fan or pump would be periodically obtained from the speed and pressure monitoring devices and the flow rate monitoring device, and the operating S-value of the heating and cooling system would be determined by applying the formula S-value=H<SUB>R</SUB>/(Q<SUB>R</SUB>)<SUP>2</SUP>, thereby obtaining a measurable single value representative of the overall efficiency of the heating and cooling system.
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