Part A-Classical Type of Questions Q1) In an ice-making plant, water at 0 °C is frozen at atmospheric pressure by evaporating saturated R-134a liquid at -26 °C. The refrigerant leaves this evaporator as a saturated vapor, and the plant is sized to produce ice at 0 °C at a rate of 3500 kg/h. R-134a -26°C -26°C sat. vapor (a) Show the entropy balance for the process (b) Determine the rate of heat transfer (c) Calculate the mass flow rate of refrigerant R-131a (d) Determine the rate of entropy generation in this plant (e) Show the process on a T-s diagram for R-134a with respect to saturation lines (Please show the related values of the parameters in the diagram)

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.