Analysis of a heat exchanger for a cogeneration unit using computational fluid dynamics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F17%3A43950361" target="_blank" >RIV/49777513:23210/17:43950361 - isvavai.cz</a>

Result on the web

<a href="http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2669113" target="_blank" >http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2669113</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/IMECE2017-70037" target="_blank" >10.1115/IMECE2017-70037</a>

Result language

angličtina

Original language name

Analysis of a heat exchanger for a cogeneration unit using computational fluid dynamics

Original language description

A cogeneration unit is a device for the production of electricity and heat. Waste heat is used in the cogeneration (Combine Heat and Power or CHP) process. This process increases the efficiency of the whole cogeneration unit system. One of the most important parts of a cogeneration unit is the exhaust heat exchanger, where waste heat is recovered. The objective of this applied research is to examine the properties of a shell-and-tube heat exchanger for a CHP unit of up to 200 kW manufactured by TEDOM a.s. The computations presented in this article are the results of computations where the influence of the composition of flue gas entering the computation in comparison with measured quantities were examined. The article contains a comparison of the influence of the flue gas, represented by CO2, N2 and air as an ideal gas. The results include an analysis of the character of the flow in the heat exchanger, especially in the input volume of the flue gas, where, apart from the influence of the flue gas properties, the influence of the construction on the flue gas mass flow rate distribution into the tubes was also examined. The advantage of this extensive computation lies in the possibility of a detailed analysis of particular parts of the heat exchanger as well as the possibility of detecting potential construction imperfections, which could negatively influence heat transfer and hence the total efficiency of the heat exchanger and the CHP unit.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

<a href="/en/project/LQ1603" target="_blank" >LQ1603: Research for SUSEN</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ASME International Mechanical Engineering Congress and Exposition (IMECE)

ISBN

978-0-7918-5841-7

ISSN

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e-ISSN

neuvedeno

Number of pages

6

Pages from-to

1-6

Publisher name

American Society of Mechanical Engineers (ASME)

Place of publication

Tampa

Event location

Tampa, Florida, USA

Event date

Nov 3, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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