FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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4. An evaporator has R-410A at -20°C and quality 80% flowing in. The exit flow is saturated vapor at
-20°C.
a. Consider the heating to be a reversible process and find the specific heat transfer from the
entropy balance. (Answer: 48.7 kJ/kg)
b. If the heat source was at -10°C and the inlet and outlet streams still have the same properties as
in a), calculate the specific entropy generation? (Answer: 7.33 J/(kg K))
I do not understand the chapter in general. May you please explain why you completed each step as you have.
Thank you.
where do thet get the enthropy valvue for S2?
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
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- Please help me solve this as soon as possible, and I will surely leave you a like.arrow_forwardK) that undergo an K-K 13. There are 1.5 Kgof a gas where K = 1.3 and R = 0.38 tsochoric process from pi = 0.552 MPa, t, = 58.5°C top2 = 1.66 MPa. During the process, there added 100 KJ of heat. Compute the heat transferred, change of internal energy and the change of entropy. %3Darrow_forwardAn adiabatic turbine has an efficiency of 90%. If air is compressed from 1100kpa and 227 degree Celsius to 101kpa. Find the work done and final temperature. Sketch process on T-S diagram.arrow_forward
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- A steam engine isentropically expand 5kg/sec of the steam from the 0.70 mpa 250°c, the exhaust is dry saturated, def; (a) work of non flow process (b) final temperature (c) work of the steam flow processarrow_forwardPlease be very detailedarrow_forward7.134E R-134a at 90 F, 125 psia is throttled in a steady flow to a lower pressure, so it comes out at 10 F. What is the specific entropy generation?arrow_forward
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