A gas turbine power plant has an output of 10,000 kW with electrical and mechanical losses of 600 kW. The overall thermal efficiency of the unit is 25 %. The gas turbine exhausts to a waste heat recovery boiler which is 75 % efficient. The steam from the boiler drives a steam turbine-generator which has an overall heat rate of 11,605.62 kJ/kW-hr. Steam turbine unit auxiliaries require 880 kW.Determine:(a) Output of the steam turbine generating unit in kW.(b) The net heat rate in kJ/KW-hr of the combined cycle.(c) Plant thermal efficiency of the steam turbine-generator plant.(d) Overall thermal efficiency. 2. A gas turbine power plant has an output of 10,000 kW with electrical and mechanical lossesof 600 kW. The overall thermal efficiency of the unit is 25 %. The gas turbine exhausts toa waste heat recovery boiler which is 75 % efficient. The steam from the boiler drives asteam turbine-generator which has an overall heat rate of 11,605.62 kJ/kW-hr. Steamturbine unit auxiliaries require 880 kW.Determine:(a) Output of the steam turbine generating unit in kW.(b) The net heat rate in kJ/KW-hr of the combined cycle.(c) Plant thermal efficiency of the steam turbine-generator plant.(d) Overall thermal efficiency.

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A gas turbine power plant has an output of 10,000 kW with electrical and mechanical losses of 600 kW. The overall thermal efficiency of the unit is 25 %. The gas turbine exhausts to a waste heat recovery boiler which is 75 % efficient. The steam from the boiler drives a steam turbine-generator which has an overall heat rate of 11,605.62 kJ/kW-hr. Steam turbine unit auxiliaries require 880 kW. Determine: (a) Output of the steam turbine generating unit in kW. (b) The net heat rate in kJ/KW-hr of the combined cycle. (c) Plant thermal efficiency of the steam turbine-generator plant. (d) Overall thermal efficiency.

A gas turbine power plant has an output of 10,000 kW with electrical and mechanical losses of 600 kW. The overall thermal efficiency of the unit is 25 %. The gas turbine exhausts to a waste heat recovery boiler which is 75 % efficient. The steam from the boiler drives a steam turbine-generator which has an overall heat rate of 11,605.62 kJ/kW-hr. Steam turbine unit auxiliaries require 880 kW. Determine: (a) Output of the steam turbine generating unit in kW. (b) The net heat rate in kJ/KW-hr of the combined cycle. (c) Plant thermal efficiency of the steam turbine-generator plant. (d) Overall 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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 9RQ: The defrost cycle in a domestic refrigerator may be terminated by two methods: ___and___.

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