Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters

This paper reports output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters, in order to deal with tight supply-demand situation of electric power in our business area. A method to let a certain amount of boiler feed water bypass several water hea...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Shuichi UMEZAWA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2014
Materias:	output increase thermal power plant steam extraction feed water feed water heaters Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/cf27f500f75142638cdeacc9ceb79c37
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cf27f500f75142638cdeacc9ceb79c37
record_format	dspace
spelling	oai:doaj.org-article:cf27f500f75142638cdeacc9ceb79c372021-11-26T06:12:42ZOutput increase of conventional thermal power plants by the method of feed water bypassing feed water heaters2187-974510.1299/mej.2014tep0043https://doaj.org/article/cf27f500f75142638cdeacc9ceb79c372014-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/1/5/1_2014tep0043/_pdf/-char/enhttps://doaj.org/toc/2187-9745This paper reports output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters, in order to deal with tight supply-demand situation of electric power in our business area. A method to let a certain amount of boiler feed water bypass several water heaters was chosen, since thermal influence on the plants of this method is less than other methods. Then, we analyzed the relation between the output increase and the ratio of bypassing heaters prior to the first application, using a heat balance analysis program for conventional power plants that we developed before. As a result, an output increase of over 30 MW was observed under the condition of 20 % of the feed water flow rate bypassing four high pressure heaters in a conventional thermal power plant of 1000 MW output. The procedures of bypassing heaters method were established and discussed in detail. This method was applied to two actual thermal power plants on trial. As a result, output increase over 30 MW was observed respectively, and it almost equals that of the calculation. The thermal efficiency for the output increase was calculated to be more than thirty percent by the heat balance program. Consequently, this method is considered having a possibility for the practical use.Shuichi UMEZAWAThe Japan Society of Mechanical Engineersarticleoutput increasethermal power plantsteam extractionfeed waterfeed water heatersMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 1, Iss 5, Pp TEP0043-TEP0043 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	output increase thermal power plant steam extraction feed water feed water heaters Mechanical engineering and machinery TJ1-1570
spellingShingle	output increase thermal power plant steam extraction feed water feed water heaters Mechanical engineering and machinery TJ1-1570 Shuichi UMEZAWA Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
description	This paper reports output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters, in order to deal with tight supply-demand situation of electric power in our business area. A method to let a certain amount of boiler feed water bypass several water heaters was chosen, since thermal influence on the plants of this method is less than other methods. Then, we analyzed the relation between the output increase and the ratio of bypassing heaters prior to the first application, using a heat balance analysis program for conventional power plants that we developed before. As a result, an output increase of over 30 MW was observed under the condition of 20 % of the feed water flow rate bypassing four high pressure heaters in a conventional thermal power plant of 1000 MW output. The procedures of bypassing heaters method were established and discussed in detail. This method was applied to two actual thermal power plants on trial. As a result, output increase over 30 MW was observed respectively, and it almost equals that of the calculation. The thermal efficiency for the output increase was calculated to be more than thirty percent by the heat balance program. Consequently, this method is considered having a possibility for the practical use.
format	article
author	Shuichi UMEZAWA
author_facet	Shuichi UMEZAWA
author_sort	Shuichi UMEZAWA
title	Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
title_short	Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
title_full	Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
title_fullStr	Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
title_full_unstemmed	Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
title_sort	output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters
publisher	The Japan Society of Mechanical Engineers
publishDate	2014
url	https://doaj.org/article/cf27f500f75142638cdeacc9ceb79c37
work_keys_str_mv	AT shuichiumezawa outputincreaseofconventionalthermalpowerplantsbythemethodoffeedwaterbypassingfeedwaterheaters
_version_	1718409808767352832

Output increase of conventional thermal power plants by the method of feed water bypassing feed water heaters

Ejemplares similares