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Discuss the factors that would make the heat pump

Fundamentals of Thermodynamcs | 8th Edition | ISBN: 9781118131992 | Authors: Claus Borgnakke, Richard E. Sonntag ISBN: 9781118131992 58

Solution for problem 39HP Chapter 5

Fundamentals of Thermodynamcs | 8th Edition

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Fundamentals of Thermodynamcs | 8th Edition | ISBN: 9781118131992 | Authors: Claus Borgnakke, Richard E. Sonntag

Fundamentals of Thermodynamcs | 8th Edition

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Problem 39HP

Problem 39HP

Discuss the factors that would make the heat pump described in Problem 4.123 an irreversible cycle.

Problem 4.123

An R-410a heat pump cycle shown in Fig. P4.123 has an R-410a flow rate of 0.05 kg/s with 5 kW into the compressor. The following data are given:

State

1

2

3

4

5

6

P, kPa

3100

3050

3000

420

400

390

T, °C

120

110

45

 

−10

−5

h, kJ/kg

377

367

134

280

284

Calculate the heat transfer from the compressor, the heat transfer from the R-410a in the condenser, and the heat transfer to the R-410a in the evaporator.

FIGURE P4.123

Step-by-Step Solution:

Solution 39 HP:

Step 1 of 1:-

Here we have to discuss the factors that would make the heat pump as irreversible cycle.

The mass flow rate is 0.05 kg/s.

The discussion is shown below:

  • The pressure will be decreased through all the lines.

  • The inside pressure of the compressor will also be decreased.

  • There will be catastrophic heat transfer into the compressor which will cause severe damage.

  • There will be leak in the backward flow which will lead to decrease in pressure abruptly.

  • In line 3 to 4, there will be throttle process.
Step 2 of 1

Chapter 5, Problem 39HP is Solved
Textbook: Fundamentals of Thermodynamcs
Edition: 8
Author: Claus Borgnakke, Richard E. Sonntag
ISBN: 9781118131992

The full step-by-step solution to problem: 39HP from chapter: 5 was answered by , our top Engineering and Tech solution expert on 08/03/17, 05:05AM. Since the solution to 39HP from 5 chapter was answered, more than 279 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Fundamentals of Thermodynamcs , edition: 8. The answer to “Discuss the factors that would make the heat pump described in 4.123 an irreversible cycle. 4.123An R-410a heat pump cycle shown in Fig. P4.123 has an R-410a flow rate of 0.05 kg/s with 5 kW into the compressor. The following data are given:State123456P, kPa310030503000420400390T, °C12011045 ?10?5h, kJ/kg377367134—280284Calculate the heat transfer from the compressor, the heat transfer from the R-410a in the condenser, and the heat transfer to the R-410a in the evaporator.FIGURE P4.123” is broken down into a number of easy to follow steps, and 73 words. Fundamentals of Thermodynamcs was written by and is associated to the ISBN: 9781118131992. This full solution covers the following key subjects: heat, transfer, compressor, cycle, Pump. This expansive textbook survival guide covers 7 chapters, and 1462 solutions.

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Discuss the factors that would make the heat pump