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By Basoco M.A.

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Other losses are associated with working fluid flow in pipes and accessories which cause distributed and local pressure losses. Finally, heat addition and rejection are not isothermal. Huang (1988) lists a series of requirements for an ideal working fluid to operate in Rankine cycles, which are partially reproduced below. 36 J. R. Simões-Moreira Fig. 20 a Regenerative Rankine cycle with three three vapor extractions and three feed water heaters; btemperature-entropy diagram Fundamentals of Thermodynamics Applied to Thermal Power Plants 37 (1) It is desirable a high critical temperature.

J Fluid Mech 70:639–649 Analysis of Thermal Plants Configuration Nisio de Carvalho L. Brum Abstract Initially some thermodynamic concepts are presented aimed at a synthesis of different conceptions of thermal cycle engines. The Rankine cycle and its major components are related to the concepts previously discussed. Some operational aspects of boilers, steam turbines, condensers and cooling towers, are emphasized. The Brayton and the combined cycles are presented with emphasis on the recovery boiler.

Br G. F. M. 1007/978-1-4471-2309-5_3, Ó Springer-Verlag London Limited 2012 41 42 N. de Carvalho L. Brum Fig. 1 Energy flow gmax ¼ 1 À TL TH ð1Þ It is important to emphasize that the temperatures TH and TL are temperatures of the TERs and not of the working fluids. These fluids have varying temperatures, flowing inside the thermal engines while exchanging heat with the thermal reservoirs. The lower temperature of the thermal reservoirs is a characteristic parameter of the atmosphere, of a river or the ocean, usual heat sinks.

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