Given the temperature of the sink, the change in entropy and the effective work done by Carnot engines A and B in Table, calculate the temperature of the heat source, the heat absorbed and rejected as well as the efficiency of both engines. Show solution High Engine Temperature Temperature (E) in °C AS (high– low) in KJ/kgK Carnot Low Heat Нeat Net Work Efficiency (c) in % Absorbed Rejected (QR) in KJ/ kg Produced (Wx) in KJkg () in °C (QA) in 32 0.2043 57 B 36 0.1856 53

Given the temperature of the sink, the change in entropy and the effective work done by Carnot engines A and B in Table, calculate the temperature of the heat source, the heat absorbed and rejected as well as the efficiency of both engines. Show solution High Engine Temperature Temperature (E) in °C AS (high– low) in KJ/kgK Carnot Low Heat Нeat Net Work Efficiency (c) in % Absorbed Rejected (QR) in KJ/ kg Produced (Wx) in KJkg () in °C (QA) in 32 0.2043 57 B 36 0.1856 53

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

Show a derivation of final temperature of otto cycle and diesel cycle in terms of initial temperature and ratios
Stirling Cycle Answer with complete solution and explanation, and with cancellation of units.
Plz solve in 45min
Two ideal Brayton cycles (see Figure below) have the same inlet temperature and the same maximum temperature of the turbine inlet. Brayton Cycle A has a higher compression ratio than Cycle B. Which of the following statements is true about the cycles? Cycle A has a higher thermal efficiency and Cycle B has a higher work net for a given mass flow rate. Cycle B has a higher thermal efficiency and a higher work net for a given mass flow rate. Since the temperatures are the same the efficiencies and work net are also the same. Cycle A has a higher work net for a given mass flow rate and Cycle B has a higher thermal efficiency. Cycle A has a higher thermal efficiency and a higher work net for a given mass flow rate.
Q9. The temperature limits through a heat engine cycle are 300 °C and 50 °C and the heat rejected of 19 kJ from the engine. Calculate the thermal efficiency and the work of the cycle. AOcertain ce
Calculate the efficiency of the Carnot Engine for ideal gas. Consider the figure below for a complete cycle of Carnot engine, where the cycle goes from ad->ab->bc->cd
How do I do this questions in steps? Stuggling with how to find the isentropic work for the efficiency of the turbine. Please have written out or neat solutions that arent copied and pasted math.
COMPLETE SOLUTION. FINAL ANSWER ARE IN ENGLISG SYSTEMS. DRAW A DIAGRAM IF NECESSARY. Derive the thermal efficiency of Carnot cycle in terms of its compression ratio “rk”. Show your complete solution and make sure to include a brief explanation.
(b) Derive an expression for thermal efficiency of ideal Brayton cycle
The displacement volume of an internal combustron engine is 5.6 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio ß of 2.4. The state of the air at the beginning of compression is fixed by P 95 kPa, T= liters. For air, take specific heat ratio y 1.4, and R 0.287 kJ kg.K. Determine the net work per cycle, in kl. //int find the temperatures at all states and apply Ocycle= Weycle) b. If the net work per cycle is equal to 4.78 kJ. determine the indicated mean effeetive pressure in kPa, Determine the thermal efficiency. d. Determine the power developed by the engine, in kW, if the cycle is executed 1500 times 27°C, and V = 6.0 a. C. per min
Nitrogen at a flow rate of 0.1 kg / s enters a heat exchanger at a temperature of 450 K and 320 It comes out at K temperature. The other fluid of the heat exchanger is water, it enters at 20 ° C and leaves at 35 ° C. a) Calculate the flow of water. b) Calculate the entropy generation in this heat exchanger. (Take the average specific heating heat for nitrogen as 1.042 kJ / kgK.)