Qa = kW Qr = kW The turbine work and pump work, Wt = kW Wp = kW The net power output, Wnet = kW The hourly quantities of steam extracted, and m1 = kg/hr m2 = kg/hr m3 = kg/hr The cycle thermal efficiency e =

Qa = kW Qr = kW The turbine work and pump work, Wt = kW Wp = kW The net power output, Wnet = kW The hourly quantities of steam extracted, and m1 = kg/hr m2 = kg/hr m3 = kg/hr The cycle thermal efficiency e =

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

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 26RQ: How many Btu of heat can be produced by 4 kWh ofelectricity?

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Question

A STEAM POWER PLANT OPERATES ON AN IDEAL REGENERATIVE RANKINE CYCLE. STEAM LEAVES THE BOILER AT 20 MPA AND 600 °C WITH A MASS FLOW RATE OF 50000 KG/HR. THE FIRST STAGE OF EXTRACTION OCCURRED AT 15 MPA AND THE SECOND AND THIRD EXTRACTION AT 10 MPA AND 5 MPA, RESPECTIVELY. THE REMAINING STEAM LEAVES THE TURBINE AT 60 KPA. CALCULATE: THE AMOUNT OF HEAT ADDED, AND HEAT REJECTED

Qa =
kW
Qr =
kW
The turbine work and pump work,
Wt =
kW
Wp =
kW
The net power output,
Wnet =
kW
The hourly quantities of steam extracted,
and
m1 =
kg/hr
m2 =
kg/hr
m3 =
kg/hr
The cycle thermal efficiency
e =

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