FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119803645
Author: Sonntag
Publisher: WILEY
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Chapter 5, Problem 5.57P
Consider the previous problem and assume the temperatures and heat input are as given. If the actual machine has an efficiency that is half that of the corresponding Carnot cycle, find the work out and the rejected heat transfer.
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Find the COP of heat pump operating between 300 K and 600K temperature. If the same temperature ranges are used in heat engine, find the efficiency.
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Chapter 5 Solutions
FUNDAMENTALS OF THERMODYNAMICS
Ch. 5 - Prob. 5.1PCh. 5 - A windowmounted air conditioner removes 3.5kJ from...Ch. 5 - R410A enters the evaporator (the cold beat...Ch. 5 - A large heat pump should upgrade 4MW of heat at...Ch. 5 - A car engine 5g/s fuel (equivalent to addition of...Ch. 5 - Prob. 5.37PCh. 5 - R134a fills a 0.1m3 capsule at 20°C, 200kPa. It is...Ch. 5 - Air in a piston/ cylinder goes through a Carnot...Ch. 5 - A heat engine receives 7kW from a 300°C source and...Ch. 5 - Consider the previous problem and assume the...
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- Carnot machine operates between a hot reservoir at 200°C and a cold reservoir at 20°C. When operated as an engine it receives 1000 kJ/kg, find the work output in kJ/kg.arrow_forwardI need the answer as soon as possiblearrow_forwardA heat engine of 30% efficiency drives a heat pump of COP 5. The heat is transferred both from engine and the heat pump to circulating water for heating the building in winter. Find the ratio of heat transfer to the circulating water from heat pump to the heat transfer to the circulating water from the heatarrow_forward
- Heat is transferred to a heat engine from a fumace at a rate of 120KW. If the rate of waste heat rejection to a nearby river is 50000W. Find the net Power output and the thermal efficiency for this heat engine.arrow_forwardDon't copy from any sourcearrow_forwardAttempt only if you are 100% Sure ,It seems 6.5 is the right answer. Show work within 20Minutes for thumb uparrow_forward
- Q.4 Two heat engines are connected in series in st such a way that rejected heat of 1° engine is directly feed to 2'1d engine. If the source temperature is 1600 K and sink temperature is 400 K. Then calculate intermediate temperature If both the engine produces the same work. A 800 K B 1000 K 600 K D None of the abovearrow_forwardFind the COP of refrigerator working between temperatures 350 K and 1050 K. What will be efficiency of heat engine operating in same temperature range?arrow_forward3.0 A cold storage is to be maintained at -5°C while the surroundings are at 35°C. The heat leakage from the surroundings into the cold storage is estimated to be 28 kW. The actual C.O.P. of the refrigeration plant used is one fourth that of an ideal plant working between the same temperatures. Find the power required to drive the plant.arrow_forward
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