FIRST LAW OF THERMODYNAMICS ThermodynamicsSummaryThe important information from this chapter is summarized below.First Law of Thermodynamics Summary• The First Law of Thermodynamics states that energy can neither becreated nor destroyed, only altered in form.• In analyzing an open system using the First Law of Thermodynamics, theenergy into the system is equal to the energy leaving the system.• If the fluid passes through various processes and then eventually returnsto the same state it began with, the system is said to have undergone acyclic process. The first law is used to analyze a cyclic process.• The energy entering any component is equal to the energy leaving thatcomponent at steady state.• The amount of energy transferred across a heat exchanger is dependentupon the temperature of the fluid entering the heat exchanger from bothsides and the flow rates of thse fluids.• A T-s diagram can be used to represent thermodynamic processes.HT-01 Page 68 Rev. 0
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