In a Piston-Cylinder system, it initially contains 2.8 bar and 40 C temperature R-134a refrigerant and the initial volume is 0.1 m3. First, heat is transferred to the system by holding the piston constant and this process is continued until the pressure is 3.2 bar. The process is then continued by allowing the volume to change while the pressure is kept constant. At the end of this process, the temperature reaches 50 C. Assuming stable changes in state, calculate the following. a) R-134a refrigerant mass in the system, b) The amount of heat transferred during the constant volume process, c) Calculate the amount of heat transferred during constant pressure operation. d) Show the processes in the P-v diagram

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A: P1=500 kPaV1=0.1 m3T1=150 KV2=0.3 m3T2=900 K

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Q: A piston-cylinder device contains 3.2 kg of air initially at 300 kPa and 227 °C (State 1). The air…

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A: as per guideline i have to solve only three subpart of your question

Q: A rigid container contains saturated vapour at 1.6 bar.  The container is cooled by -440 KJ and the…

A: GivenP1=1.6barQ=-440kJP2=1bar

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A: given; draw T-V diagram for water at different temperature ?

Q: A spring-loaded piston-cylinder device contains m = 1kg of carbon dioxide. Initially, the spring has…

A: Given:Intial state 1: P1=500 kPa, T1=150 K, V1=0.1 m3Final state 2:T2=900 K, V2=0.3 m3Find:The…

Q: Example 2: A system consists of N, in a piston-cylinder assembly, initially at P, = 20 psi, and…

A:

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.