39 refrigeration cycle ph diagram
Refrigeration Cycle T-S & p-h Diagram The refrigerant cycle is described by the T-S & p-h diagram. Refrigeration cycle diagrams . COP of Refrigeration Cycle. The efficiency of the refrigeration cycle is described by COP or coefficient of performance. h1 = Sp. enthalpy before compression at Point 1; 20 Mar 2018 — When you can draw a refrigeration cycle on a p-h diagram, you can easily obtain the refrigerant characteristics through the diagram. In general, a log p-h diagram shows the aggregate state of a substance, depending on pressure and heat. For refrigeration, the diagram is reduced to the relevant regions of liquid and gaseous as well as their mixed form. The vertical axis shows the logarithmic pressure and the horizontal axis shows the specific c enthalpy with linear scaling. Accordingly, the isobars are horizontal and the isoenthalps are vertical. The logarithmic scaling makes it possible to represent processes with large pressure differences. The saturated vapo...