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Experts` opinion: Heat exchangers in power plant engineering. Pt. 1. Enhanced efficiency through the further development of heat exchanger technologies; Gutachten: Waermetauscher in der Kraftwerkstechnik. T. 1. Effizienzsteigerung durch Weiterentwicklung von Waermetauschertechnologien

Miscellaneous:

Abstract

An investigation into this subject must consider not only conventional power plant concepts but also innovative, coal-fired combined-cycle power plants, whose efficiency can be distinctly enhanced by increasing their upper process temperature. This involves, inter alia, higher demands on heat exchangers that conventional metal recuperators do not meet. The first of the expertise comprises the following tasks: - survey of heat exchangers at power stations, - description of the state of the art of such heat exchangers (technical specification, limits of use, list of manufacturers), - listing of those heat exchangers whose further development may result in higher efficiency. On the basis of the results of this first part of the expertise it was decided to investigate, in a second part, an innovative combined-cycle process with an indirectly coal-fired gas turbine. In this process the flue gas heat liberated by the combustion of coal is transferred to a clean medium used to operate a gas turbine. To ensure the efficiency of the gas turbine process this heat transfer must take place at temperatures far higher than 1000 C. As a consequence, demands on the heat exchanger are such as cannot be met by conventional engineering. Consequently, this high-temperature heat exchanger  More>>
Publication Date:
Apr 01, 1992
Product Type:
Miscellaneous
Report Number:
ETDE-DE-3
Reference Number:
SCA: 200102; 200104; PA: DE-95:0G1295; EDB-95:028121; SN: 95001322077
Resource Relation:
Other Information: PBD: Apr 1992
Subject:
20 FOSSIL-FUELED POWER PLANTS; COMBINED-CYCLE POWER PLANTS; HEAT EXCHANGERS; GAS TURBINES; EFFICIENCY; CERAMICS; FLUE GAS; THERMODYNAMIC CYCLES; MANUFACTURING; TEMPERATURE RANGE 0400-1000 K; ECONOMICS; FLOWSHEETS; ENERGY BALANCE; HYBRID SYSTEMS; ASHES; REMOVAL; 200102; 200104; POWER CYCLES; COMPONENTS
Sponsoring Organizations:
Bundesministerium fuer Forschung und Technologie, Bonn (Germany)
OSTI ID:
10114397
Research Organizations:
Forschungszentrum Juelich GmbH (Germany). Projekttraeger Biologie, Energie, Oekologie; Fichtner Development Engineering GmbH, Stuttgart (Germany)
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: ON: DE95738932; CNN: Foerderkennzeichen BMFT 0326746A; TRN: DE95G1295
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
DE
Size:
61 p.
Announcement Date:
Jun 30, 2005

Miscellaneous:

Citation Formats

None. Experts` opinion: Heat exchangers in power plant engineering. Pt. 1. Enhanced efficiency through the further development of heat exchanger technologies; Gutachten: Waermetauscher in der Kraftwerkstechnik. T. 1. Effizienzsteigerung durch Weiterentwicklung von Waermetauschertechnologien. Germany: N. p., 1992. Web.
None. Experts` opinion: Heat exchangers in power plant engineering. Pt. 1. Enhanced efficiency through the further development of heat exchanger technologies; Gutachten: Waermetauscher in der Kraftwerkstechnik. T. 1. Effizienzsteigerung durch Weiterentwicklung von Waermetauschertechnologien. Germany.
None. 1992. "Experts` opinion: Heat exchangers in power plant engineering. Pt. 1. Enhanced efficiency through the further development of heat exchanger technologies; Gutachten: Waermetauscher in der Kraftwerkstechnik. T. 1. Effizienzsteigerung durch Weiterentwicklung von Waermetauschertechnologien." Germany.
@misc{etde_10114397,
title = {Experts` opinion: Heat exchangers in power plant engineering. Pt. 1. Enhanced efficiency through the further development of heat exchanger technologies; Gutachten: Waermetauscher in der Kraftwerkstechnik. T. 1. Effizienzsteigerung durch Weiterentwicklung von Waermetauschertechnologien}
author = {None}
abstractNote = {An investigation into this subject must consider not only conventional power plant concepts but also innovative, coal-fired combined-cycle power plants, whose efficiency can be distinctly enhanced by increasing their upper process temperature. This involves, inter alia, higher demands on heat exchangers that conventional metal recuperators do not meet. The first of the expertise comprises the following tasks: - survey of heat exchangers at power stations, - description of the state of the art of such heat exchangers (technical specification, limits of use, list of manufacturers), - listing of those heat exchangers whose further development may result in higher efficiency. On the basis of the results of this first part of the expertise it was decided to investigate, in a second part, an innovative combined-cycle process with an indirectly coal-fired gas turbine. In this process the flue gas heat liberated by the combustion of coal is transferred to a clean medium used to operate a gas turbine. To ensure the efficiency of the gas turbine process this heat transfer must take place at temperatures far higher than 1000 C. As a consequence, demands on the heat exchanger are such as cannot be met by conventional engineering. Consequently, this high-temperature heat exchanger represents the central development target of the envisaged combined-cycle process with coal firing. (orig./GL) [Deutsch] Neben der Betrachtung konventioneller Kraftwerkskonzepte sind auch innovative kohlebefeuerte Kombiprozesse in die Untersuchung miteinzubeziehen, bei denen eine deutliche Wirkungsgradverbesserung durch eine Erhoehung der oberen Prozesstemperatur erzielt wird. Damit sind unter anderem erhoehte Anforderungen an die Waermetauscher verbunden, die konventionelle metallische Rekuperatoren nicht zu erfuellen vermoegen. Der vorliegende erste Teil des Gutachtens umfasst die folgenden Aufgabenstellungen: - Ueberblick ueber die Waermetauscher in Kraftwerken; - Beschreibung des Standes der Technik dieser Waermetauscher (Technische Beschreibung, Einsatzgrenzen, Ueberblick ueber Hersteller); - Zusammenstellung der Waermetauscher, deren Weiterentwicklung mit einer Effizienzsteigerung verbunden sein kann. Auf der Grundlage der Ergebnisse dieses Teiles I wurde entscheiden, im weiteren Verlauf des Gutachtens in einem Teil II einen innovativen Kombiprozess mit indirekt kohlebefeuerter Gasturbine zu untersuchen. Bei diesem Prozess wird die bei der Kohleverbrennung freiwerdende Waerme des Rauchgases auf ein sauberes Arbeitsmedium uebertragen, mit dem eine Gasturbine betrieben wird. Diese Waermeuebertragung muss fuer einen effizienten Gasturbinenprozess bei Temperaturen weit oberhalb von 1000 C erfolgen. Hieraus resultieren Anforderungen an den Waermetauscher, die mit konventionellen Techniken nicht erfuellt werden koennen. Daher stellt dieser Hochtemperatur-Waermetauscher den wesentlichen Entwicklungsschwerpunkt dieses moeglichen Kohle-Kombiprozesses dar. (orig./GL)}
place = {Germany}
year = {1992}
month = {Apr}
}