Determine: (a) the percent thermal efficiency. (b) the back work ratio. (c) the net power developed, in Btu/h. (d) the rate of heat transfer to the working fluid passing through the boiler, in Btu/h.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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I only need help with part (d) of this engineering problem.

 

A Carnot vapor power cycle operates with water as the working fluid. Saturated liquid enters the boiler at 1800 lbf/in.?, and
saturated vapor enters the turbine (state 1). The condenser pressure is 1.2 Ibf/in.? The mass flow rate of steam is 1x 107 Ib/h. Data
at key points in the cycle are provided in the accompanying table.
State
p (Ibf/in.2)
h (Btu/lb)
1
1800
1150
2
1.2
735.5
1.2
472
4
1800
648.2
Transcribed Image Text:A Carnot vapor power cycle operates with water as the working fluid. Saturated liquid enters the boiler at 1800 lbf/in.?, and saturated vapor enters the turbine (state 1). The condenser pressure is 1.2 Ibf/in.? The mass flow rate of steam is 1x 107 Ib/h. Data at key points in the cycle are provided in the accompanying table. State p (Ibf/in.2) h (Btu/lb) 1 1800 1150 2 1.2 735.5 1.2 472 4 1800 648.2
Determine:
(a) the percent thermal efficiency.
(b) the back work ratio.
(c) the net power developed, in Btu/h.
(d) the rate of heat transfer to the working fluid passing through the boiler, in Btu/h.
Transcribed Image Text:Determine: (a) the percent thermal efficiency. (b) the back work ratio. (c) the net power developed, in Btu/h. (d) the rate of heat transfer to the working fluid passing through the boiler, in Btu/h.
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