Two (2) Carnot engines are arranged in the manner that the latter engine receives the heat rejected by the former engine as a heat added on the its system. If the both the engine is operating between a temperature limits of 35°C and 400°C. Determine the total net power that can be extracted if the first engines receives heat from the heat source at the rate of 30kW. a. 23.7131kW b. 23.7132kW ç. 23.7133KW d. 23.7134kW

Two (2) Carnot engines are arranged in the manner that the latter engine receives the heat rejected by the former engine as a heat added on the its system. If the both the engine is operating between a temperature limits of 35°C and 400°C. Determine the total net power that can be extracted if the first engines receives heat from the heat source at the rate of 30kW. a. 23.7131kW b. 23.7132kW ç. 23.7133KW d. 23.7134kW

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

See similar textbooks

Similar questions

Two (2) Carnot engines are arranged in the manner that the latter engine receives the heat rejected by the former engine as a heat added on the its system. If the both the engine is operating between a temperature limits of 35C and 400C. Determine the total net power that can be extracted if the first engines receives heat from the heat source at the rate of 30kW.a. 23.7131kW b. 23.7132kW c. 23.7133kW d. 23.7134kW
17. A Camot engine receives 1000 kJ of heat from a heat reservoir at an unknown temperature and rejects 400 kJ of heat to a low-temperature reservoir at 25°C. Determine (a) the high temperature; and (b) the thermal efficiency.
An engine works on the basis of Carnot cycle operating between temperatures of 800 K and 400 K. If the heat supplied is 100 kW, the output is
A cyclic heat engine does 50 kJ of work per cycle. If the efficiency of the heat engine is 75%, the heat rejected per cycle is (a) 16.67 kJ (c) 37.50 kJ (b) 33.30 kJ (d) 66.67 kJ
4.0 The capacity of the refrigerator (working on reversed Carnot cycle) is 280 tonnes when operating between – 10°C and 25°C. Determine : (a) Quantity of ice produced within 24 hours when water is supplied at 20°C. (b) Minimum power (in kW) required.
n=5 here.
Q) A Carnot heat engine receives heat from a reservoir at 800 °C at a rate of 12 kJ/s and rejects the waste heat to the ambient air at 27 °C. The half entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -4°C and transfers it to the same ambient air at 27°C. Determine: (a) The maximum rate of heat removal from the refrigerated space. (b) The total rate of heat rejection to the ambient air.
The air conditioner (a kind of vapour-compression refrigerator) in a 1600-cc car, which works on a pseudo-ideal reversed Rankine cycle, uses R-134a, the isentropic rotary-com-pressor of which consumes power at a rate of 1.5 kJ/s bringing the R-134a from 2.017 bar to 12 bar by compression. The cold space is a heat exchanger (using a hamster wheel as a blower) that cools atmospheric air from the outside temperature of 303 K down to 283 K and blows it into the car. Assume the start of compression process is state point 1. The refrigerant at evaporator exit is dry saturated vapour and saturated liquid at the condenser exit. Draw the schematic and T-s diagrams for the cycle. (a) What is the mass flow rate of the R-134a ()? (b) What is the low-temperature heat transfer rate? (c) How much is the mass flow rate of air () at 283 K? For air, take cP = 1.004 kJ/(kg·K).
Question 6: A Carnot heat engine absorbs 2000 J of heat from the source of heat engine at 227° C and rejects 1200 J of heat during each cycle to sink. Calculate efficiency of engine temperature of sink and amount of work done during each cycle.