FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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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.
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- 6.) Pineapple fruits with a mass of 500 kg are supplied to a cold storage at 20 C. The cold storage is maintained at 5 C and the fruits get cooled to a storage temperature in 10 hours. The latent heat of freezing is 105 kJ/kg and the specific heat of fruit is 1.256 kJ/kg.K. Find the refrigeration capacity of the plant.arrow_forwardA cold storage plant of 30 tonnes of refrigeration capacity runs with its performance just th of its 25% of Carnot COP. Inside temperature is -10°C and atmospheric temperature is 25ºC. Calculate the power required to run the plant. [Note: 1 ton of refrigeration = 3.52 kW]arrow_forward/Heat is transferred from a tank of water in a refrigerator at(OC) degrees to a tank of boiling water at (100 C) degrees. With a reversible machine (heat pump). Calculate the Heat drawn from the refrigerator. if it was The heat transferred to the tank of boiling water is 2254kJ.arrow_forward
- Q.7 The COP of the heat pump is found to be 5.62, and the heat pump operates with the source at 25°C, while the heat absorbed is 2.12 kW. What is the amount of heat rejected ?arrow_forwardcan you please solve this for me (the fraction of steam extracted from theturbine for the open feedwater heater)arrow_forward.The thermal efficiency of a heat engine is 30%, the heat rejected from the engine is 30kJ, evaluate the heat input to the engine.arrow_forward
- 5. A heat engine release heat into the cold reservoir at 500 K with a carnot efficiency of 25 %. What exhaust temperature will increase the carnot efficiency to 60 %?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 30 kw. The actual C.O.P. of the refrigeration plant used is one third that of an ideal plant working between the same temperatures. Find the power required to drive the plant.arrow_forwardI need the answer quicklyarrow_forward
- 3.0 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_forwardI need answer within 20 minutes please please with my best wishesarrow_forwardDo fastarrow_forward
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