Consider an ideal vapor compression system using R-134a. Its condensing pressureis 185 psia (sat. temp. 120 F) and evaporating pressure is 33 psia (sat. temp. 20 F).Using the attached P-h state diagram, answer the questions below. (You may wantto have a ruler to help read the chart.)a) Show the ideal cycle. Label the states (1,2,3,4).b) Calculate the COP for this ideal cycle.c) Determine the refrigerating effect per refrigerant circulated [Btu/lbm],d) For ATsc = 10 F of subcooling, how much does it change the refrigeration effect[% change].e) Determine the COP for part d.f) Determine the increase in COP for ATsh = 1 F of superheat. To answer thisquestion, compare the cycle in part e that has 0 F superheat with a cycle that has20 F of superheat and calculate 4COP/ATsh-%3D

Answered: Image /qna-images/answer/4da9d5ee-f6a5-473e-8e1a-a38b9e7da301.jpg

Answered: Consider an ideal vapor compression…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The figure shows a PV diagram for an engine that uses a monatomic ideal gas as the working substance. The temperature at point A is 470.0 K.(a) How much net work does this engine do per cycle?(b) Assuming that the efficiency of the engine is 0.444, what is the heat input into the gas per cycle?(c) How much heat is exhausted per cycle?(d) How many moles of gas are used in this engine?(e) What is the total change in internal energy of this gas in one cycle?
Can you provide the step by step solution how to get the answers? Steam flows adiabatically through a nozzle from 1517 KPaa, 290 °C, to 965 KPaa. Sketch the pV and Ts diagram and for m=454 gm/sec, Detemine delta s, delta u, delta v, delta h, work nonflow and work steady flow.
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(2) Describe briefly why the following statements are wrong. (a) "Hot cup of coffee becoming cold spontaneously is an entropy-decreasing process. So the law of entropy increase can be violated." (b) “Air conditioners require bulky external unit, exhausting heat to outside. With the technology constantly advancing, external unit will be eliminated in the future."
A condensing steam turbine is used to expand HPS (high pressure steam) polytropically from a pressure of 60 bar at 450 C to 2 bar at 150 C. Estimate a. turbine output steam temperature when the expansion is isentropic! Use the steam table in the Smith-Van Ness-Abbott book as a guide!b. Calculate the ideal and actual specific steam consumption! Use the steam table in the Smith-Van Ness-Abbott book as a guide!
Required information Problem 07.021 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. During the isothermal heat addition process of a Carnot cycle, 700 kJ of heat is added to the working fluid from a source at 400°C. Problem 07.021.c - Total entropy change for the process Determine the total entropy change for the process. The total entropy change for the process is KJ/K.
A steam turbine drives an air compressor-all power produced by the turbine is sent to the compressor; there is no extra power produced. Steady-state operating data are provided on the figure. Assume the ideal gas model for air, and ignore stray heat transfer and kinetic and potential energy effects. Steam 1 STATE DATA for SYSTEM P, = 30 bar T, = 600°C m = 1.5 kg/s n = 80% P2 = 3 bar P3 = 1 bar T3 = 27°C Turbine Compressor %3D 2 Air
Can you provide the step-by-step solution how to get the answers? Steam flows adiabatically through a nozzle from 1517 KPaa, 290 °C, to 965 KPaa. Sketch the pV and Ts diagram and for m=454 gm/sec, Determine delta s, delta u, delta v, delta h, work nonflow and work steady flow. the first three (delta s, delta u, delta v, delta h) were already answered. Can you continue the bold part
Select the correct expressions of the entropy change for the ideal gases with constant specific heats for arbitrary processes ___________ A. B. C. D.

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