1. Determine the phase(s) present for each of the following working fluids and conditions. If a two-phase mixture is present, determine the quality of the system.a. Water, T = 45°C , P = 5.848 MPab. Ammonia, h = 778.52 kJ/kg, T = 0°Cc. R22, P = 80 Ibf/in?, v = 0.9318 ft2/lbmd. Water, T = 395°F, v = 1.337 ft/lbme. R134a, T = -15°C, P = 0.8 bar

To determine 1)phase and 2) quality. here quality is the value of x In (part b & d)

Answered: t, determine the quality of the system.

Engineering

Mechanical Engineering

t, determine the quality of the system.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter3: Refrigeration And Refrigerants

Section: Chapter Questions

Problem 31RQ: Define a near-azeotropic refrigerant blend, and give twoexamples.

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Concept explainers

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.

Question

1. Determine the phase(s) present for each of the following working fluids and conditions. If a two-
phase mixture is present, determine the quality of the system.
a. Water, T = 45°C , P = 5.848 MPa
b. Ammonia, h = 778.52 kJ/kg, T = 0°C
c. R22, P = 80 Ibf/in?, v = 0.9318 ft2/lbm
d. Water, T = 395°F, v = 1.337 ft/lbm
e. R134a, T = -15°C, P = 0.8 bar

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