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In an air conditioning system running at steady-state, m ̇ = 0.7 kg/s of refrigerant 3 134a in saturated liquid state at 48◦C flow through a throttling valve reducing its pressure to a value of p4 = 4 bars. The system is shown in Fig. 1. Then the refrigerant flows through the internal side of a heat exchanger exiting at saturated vapor with p5 = p4. Air enters the external side of the heat exchanger at T1 = 300 K and exits at T2 = 295 K moved by a fan ̇ Figure 1: Problem 1 that consumes WCV = 0.15 kW. Determine the mass flow rate of the air, in kg/s

In an air conditioning system running at steady-state, m ̇ = 0.7 kg/s of refrigerant 3 134a in saturated liquid state at 48◦C flow through a throttling valve reducing its pressure to a value of p4 = 4 bars. The system is shown in Fig. 1. Then the refrigerant flows through the internal side of a heat exchanger exiting at saturated vapor with p5 = p4. Air enters the external side of the heat exchanger at T1 = 300 K and exits at T2 = 295 K moved by a fan ̇ Figure 1: Problem 1 that consumes WCV = 0.15 kW. Determine the mass flow rate of the air, in kg/s

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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In an air conditioning system running at steady-state, m ̇ = 0.7 kg/s of refrigerant 3

134a in saturated liquid state at 48◦C flow through a throttling valve reducing its pressure

to a value of p4 = 4 bars. The system is shown in Fig. 1. Then the refrigerant flows through

the internal side of a heat exchanger exiting at saturated vapor with p5 = p4. Air enters the

external side of the heat exchanger at T1 = 300 K and exits at T2 = 295 K moved by a fan ̇

Figure 1: Problem 1

that consumes WCV = 0.15 kW. Determine the mass flow rate of the air, in kg/s

1.- (33 pts) In an air conditioning system running at steady-state, m3 = 0.7 kg/s of refrigerant 134a in saturated liquid state at 48°C flow through a throttling valve reducing its pressure to a value of p4 = 4 bars. The system is shown in Fig. 1. Then the refrigerant flows through the internal side of a heat exchanger exiting at saturated vapor with p; = P4. Air enters the external side of the heat exchanger at T1 = 300 K and exits at T2 = 295 K moved by a fan that consumes Wcv = 0.15 kW. Determine the mass flow rate of the air, in kg/s. 3 5. R134a + Heat Exchanger Valve Fan Air
Transcribed Image Text:1.- (33 pts) In an air conditioning system running at steady-state, m3 = 0.7 kg/s of refrigerant 134a in saturated liquid state at 48°C flow through a throttling valve reducing its pressure to a value of p4 = 4 bars. The system is shown in Fig. 1. Then the refrigerant flows through the internal side of a heat exchanger exiting at saturated vapor with p; = P4. Air enters the external side of the heat exchanger at T1 = 300 K and exits at T2 = 295 K moved by a fan that consumes Wcv = 0.15 kW. Determine the mass flow rate of the air, in kg/s. 3 5. R134a + Heat Exchanger Valve Fan Air
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