An ideal Rankine cycle with reheat uses water as the working fluid. As shown in the figure below, the conditions at the inlet to the first turbine stage are 1600 lbf/in.2, 1200°F and the steam is reheated to a temperature of T3 = 800°F between the turbine stages at a pressure of p3 = p2 = 200 lbf/in.2 For a condenser pressure of p5 = p4 = 1 lbf/in.2, determine: (a) the quality of the steam at the second-stage turbine exit. (b) the cycle percent thermal efficiency.

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter36: Refrigeration Applied To Air-conditioning
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Problem 8RQ: The most popular refrigerant used in the past for residential air-conditioning is R- ________.
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An ideal Rankine cycle with reheat uses water as the working fluid. As shown in the figure below, the conditions at the inlet to the first turbine stage are 1600 lbf/in.2, 1200°F and the steam is reheated to a temperature of T3 = 800°F between the turbine stages at a pressure of p3 = p2 = 200 lbf/in.2



For a condenser pressure of p5 = p4 = 1 lbf/in.2, determine:

(a) the quality of the steam at the second-stage turbine exit.

(b) the cycle percent thermal efficiency.
P3 = P2
3 T3
Reheat
section
P2
Steam
generator
Turbine 1
Turbine 2
P1 = 1600 lbf/in.?
T = 1200°F
P4
P6 =P1 = 1600 lbffin.?
6-
Condenser
Pump
5
P5 = P4
X5 = 0 (saturated liquid)
W,
Transcribed Image Text:P3 = P2 3 T3 Reheat section P2 Steam generator Turbine 1 Turbine 2 P1 = 1600 lbf/in.? T = 1200°F P4 P6 =P1 = 1600 lbffin.? 6- Condenser Pump 5 P5 = P4 X5 = 0 (saturated liquid) W,
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