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Thermal analysis of the heat recuperator of a combined cycle thermoelectric central; Analisis termico del recuperador de calor de una central termoelectrica de ciclo combinado

Abstract

The thermoelectric centrals of the combined cycle type (Brayton Cycle and Rankine Cycle) present a series of opportunities to increase the efficiency of the combined cycle or of the generated power. This paper shows the methodology for the performance of energy balances in a heat recuperator (H. R.), typically employed in the combined cycle stations operating in Mexico, for the assessment of the energy harnessing in the different sections conforming a H. R. The effect of the installation of evaporative coolers and/or an absorption cooling system at the gas turbine compressor intake on the steam generation in the heat recuperator, is evaluated. This extra generation of steam is quantified for its potential use in the same absorption refrigeration system. From the assessment, it follows up that the steam generation in the H.R. is inversely proportional to the ambient temperature and that, although the increased amount of steam generated can not be harnessed in total by the steam turbine, the remaining fraction is good enough to cover the heat demand for the operation of the refrigeration system. [Espanol] Las centrales termoelectricas del tipo ciclo combinado (ciclo Brayton y ciclo Rankine) presentan un conjunto de oportunidades para incrementar la eficiencia del ciclo  More>>
Authors:
Romero Paredes, Hernando; Sanchez, I; Lazcano, L C; Ambriz, Juan Jose; Alvarez, M; [1]  Gonzalez, O [2] 
  1. Universidad Autonoma Metropolitana-Iztapalapa, Mexico, D. F. (Mexico)
  2. Comision Federal de Electricidad, Tula (Mexico)
Publication Date:
Dec 31, 1996
Product Type:
Miscellaneous
Report Number:
CONF-9611244-
Reference Number:
SCA: 200102; PA: MX-98:000055; EDB-99:040671; SN: 98002000319
Resource Relation:
Conference: 17. national seminar on the rational use of the energy and exposition of equipment and services, 17. seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios, Mexico (Mexico), 25-29 Nov 1996; Other Information: PBD: 1996; Related Information: Is Part Of 17. national seminar on the rational use of the energy and exposition of equipment and services. Transactions; PB: 722 p.; 17. seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios. Memoria tecnica
Subject:
20 FOSSIL-FUELED POWER PLANTS; COMBINED CYCLES; HEAT RECOVERY EQUIPMENT; BRAYTON CYCLE; RANKINE CYCLE; EVAPORATIVE COOLING; STEAM TURBINES; GAS BURNERS; NUMERICAL DATA
OSTI ID:
331570
Country of Origin:
Mexico
Language:
Spanish
Other Identifying Numbers:
Other: ON: DE99717744; TRN: MX9800055
Availability:
Available from Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), Av. Revolucion 728, Oficina 15, Col. Nonoalco Mixcoac, C.P. 03700, Mexico D. F. (Mexico), Tel./Fax: (5) 611 9280; OSTI as DE99717744
Submitting Site:
MX
Size:
pp. 499-510
Announcement Date:
Apr 28, 1999

Citation Formats

Romero Paredes, Hernando, Sanchez, I, Lazcano, L C, Ambriz, Juan Jose, Alvarez, M, and Gonzalez, O. Thermal analysis of the heat recuperator of a combined cycle thermoelectric central; Analisis termico del recuperador de calor de una central termoelectrica de ciclo combinado. Mexico: N. p., 1996. Web.
Romero Paredes, Hernando, Sanchez, I, Lazcano, L C, Ambriz, Juan Jose, Alvarez, M, & Gonzalez, O. Thermal analysis of the heat recuperator of a combined cycle thermoelectric central; Analisis termico del recuperador de calor de una central termoelectrica de ciclo combinado. Mexico.
Romero Paredes, Hernando, Sanchez, I, Lazcano, L C, Ambriz, Juan Jose, Alvarez, M, and Gonzalez, O. 1996. "Thermal analysis of the heat recuperator of a combined cycle thermoelectric central; Analisis termico del recuperador de calor de una central termoelectrica de ciclo combinado." Mexico.
@misc{etde_331570,
title = {Thermal analysis of the heat recuperator of a combined cycle thermoelectric central; Analisis termico del recuperador de calor de una central termoelectrica de ciclo combinado}
author = {Romero Paredes, Hernando, Sanchez, I, Lazcano, L C, Ambriz, Juan Jose, Alvarez, M, and Gonzalez, O}
abstractNote = {The thermoelectric centrals of the combined cycle type (Brayton Cycle and Rankine Cycle) present a series of opportunities to increase the efficiency of the combined cycle or of the generated power. This paper shows the methodology for the performance of energy balances in a heat recuperator (H. R.), typically employed in the combined cycle stations operating in Mexico, for the assessment of the energy harnessing in the different sections conforming a H. R. The effect of the installation of evaporative coolers and/or an absorption cooling system at the gas turbine compressor intake on the steam generation in the heat recuperator, is evaluated. This extra generation of steam is quantified for its potential use in the same absorption refrigeration system. From the assessment, it follows up that the steam generation in the H.R. is inversely proportional to the ambient temperature and that, although the increased amount of steam generated can not be harnessed in total by the steam turbine, the remaining fraction is good enough to cover the heat demand for the operation of the refrigeration system. [Espanol] Las centrales termoelectricas del tipo ciclo combinado (ciclo Brayton y ciclo Rankine) presentan un conjunto de oportunidades para incrementar la eficiencia del ciclo combinado o bien la potencia generada. En el presente trabajo se expone la metodologia para realizar los balances de energia en un recuperador de calor (R.C.) tipicamente utilizado en las Centrales de Ciclo Combinado (CCC) que operan en Mexico, para evaluar el aprovechamiento de la energia en las diferentes secciones que conforman un R.C. Se evalua el efecto que tiene la instalacion de enfriadores evaporativos y/o un sistema de enfriamiento por absorcion en la succion del compresor de la turbina de gas sobre la generacion de vapor en el recuperador de calor. Se cuantifica esta generacion extra de vapor para su posible utilizacion en el mismo sistema de refrigeracion por absorcion. De la evaluacion se desprende que la generacion de vapor en el R.C. es inversamente proporcional a la temperatura ambiente y, que si bien, el incremento en el vapor generado no puede ser aprovechado en su totalidad por la turbina de vapor, la fraccion remanente es suficiente para cubrir la demanda de calor para la operacion del sistema de refrigeracion.}
place = {Mexico}
year = {1996}
month = {Dec}
}