Read e-book online Advanced Gas Turbine Cycles: A Brief Review of Power PDF

By J. H. Horlock

ISBN-10: 0080442730

ISBN-13: 9780080442730

Primarily this publication describes the thermodynamics of fuel turbine cycles. the quest for prime fuel turbine potency has produced many diversifications at the easy "open circuit" plant, related to using warmth exchangers, reheating and intercooling, water and steam injection, cogeneration and mixed cycle crops. those are defined absolutely within the text.

A evaluation of contemporary proposals for a couple of novel fuel turbine cycles is additionally incorporated. long ago few years paintings has been directed in the direction of constructing fuel generators which produce much less carbon dioxide, or crops from which the CO2 may be disposed of; the consequences of a carbon tax on electrical energy pricing are thought of.

In providing this vast survey of gasoline turbine cycles for strength iteration the writer calls on either his educational adventure (at Cambridge and Liverpool Universities, the gasoline Turbine Laboratory at MIT and Penn country college) and his business paintings (primarily with Rolls Royce, plc.) The booklet can be crucial analyzing for ultimate yr and masters scholars in mechanical engineering, and for working towards engineers.

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Additional resources for Advanced Gas Turbine Cycles: A Brief Review of Power Generation Thermodynamics

Example text

Pis less than unity, so q < qCm. For an irreversible gas turbine cycle (the irreversible Joule-Brayton (LTB) cycle of Fig. 9), ffA > ffB (ais less than unity) and 5 < 1 so that the thermal efficiency is q = 1- 7 =1- T G. 5. Modifications of gas turbine cycles to achieve higher thermal efficiency There are several modifications to the basic gas turbine cycle that may be introduced to raise thermal efficiency. Advanced gas turbine cycles 10 T 0 S Fig. 9. Irreversible Joule-Brayton cycle. Two objectives are immediately clear.

The above analysis has been concerned with heat transfer from the control volume. Consider next heat [de]: = [dQREV]itransferred to the control volume. Then that heat could be reversibly pumped to CV (at temperature T ) from the atmosphere (at temperature To)by a reversed Carnot engine. This would require work inpur Under this new arrangement, Eq. 20) and Eq. 21) eN is the work potential or thermal energy of the heat supplied to CV, T-To EPN = Jx (-)de. If heat were both transferred to and rejected from CV,then a combination of Eqs.

The various terms in Eq. 49) are shown for an irreversible open gas turbine plant based on the JB cycle. 2 0 Ez 1. WORK OUTPUT 2. COMBUSTION LOSS 3. COMPRESSOR LOSS 4. TURBINE LOSS 5. EQOUT= 0 6. 05 0 n 3 n 4 COMPONENT 5 Fig. 9. Work output and exergy losses in CBT gas turhine plant (all as fractions of fuel exergy). 9, and the combustion pressure loss is 3% of the inlet pressure to the chamber. The method of calculation is given in Chapters 4 and 5, but it is sufficient to say here that it involves the assumption of real semi-perfect gases with methane as fuel for combustion and no allowance for any turbine cooling.

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Advanced Gas Turbine Cycles: A Brief Review of Power Generation Thermodynamics by J. H. Horlock


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