The effect of leakage on pressure loss of rotary regenerative heat exchangers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00366898" target="_blank" >RIV/68407700:21220/23:00366898 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.ijrefrig.2023.07.004" target="_blank" >https://doi.org/10.1016/j.ijrefrig.2023.07.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijrefrig.2023.07.004" target="_blank" >10.1016/j.ijrefrig.2023.07.004</a>

Result language

angličtina

Original language name

The effect of leakage on pressure loss of rotary regenerative heat exchangers

Original language description

The pressure loss of the rotary exchanger is an important parameter that affects the energy consumption. Based on the literature review, the available correlations for calculating the pressure loss of rotary regenerative heat exchangers are presented in the article. The article presents extensive experimental research of rotary regenerative exchangers with different wheel geometries. A total of nine exchangers with eight different heat wheel geometries were investigated. The experiment was divided into two tasks concerning the pressure loss of the wheel channel and the total pressure loss of the built-in exchanger. The results of both approaches show differences that are caused by the leakage of rotary exchangers, which is their natural property. Based on the results of the experiment, correlations were proposed for determining the coefficient of friction in a channel in the shape of a sinusoid and a correlation for calculating the total pressure loss of the built-in rotary exchanger. The presented correlations have been experimentally verified and can be applied with a sufficient accuracy of ±5 %. The new correlations were compared with the published results. The article discusses the effect of leakage of exchangers equipped with a labyrinth seal. Based on the experimental investigation, it was found that the leakage of the examined exchangers varies in a wide range of 1 to 4% and depends on the quality of the exchanger construction.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/TK05020003" target="_blank" >TK05020003: Development of a new generation of rotary regenerative heat exchanger</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Name of the periodical

International Journal of Refrigeration

ISSN

0140-7007

e-ISSN

1879-2081

Volume of the periodical

154

Issue of the periodical within the volume

7

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

364-377

UT code for WoS article

001089679500001

EID of the result in the Scopus database

2-s2.0-85173494645