The Recuperative Heat Exchangers – The Mean Temperature Difference in the Special Cases of Heat Transfer

Gužela Štefan; Dzianik František

doi:10.2478/scjme-2020-0005

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The Recuperative Heat Exchangers – The Mean Temperature Difference in the Special Cases of Heat Transfer

Strojnícky časopis - Journal of Mechanical Engineering

Volume 70 (2020): Issue 1 (April 2020)

By: Gužela Štefan and Dzianik František

Open Access

|May 2020

Abstract

The heat exchangers are used to heat or cool the material streams. To calculate the heat exchanger, it is important to know the type of heat exchanger and its operating characteristic. This characteristic determines one of the key variables (e.g., F, NTU_min, or θ). In some special cases, it is not necessary to know its operating characteristic to calculate the heat exchanger. This article deals with these special cases. The article also contains a general dependency that allows checking the key variables related to a given heat exchanger.

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Articles in this issue

DOI: https://doi.org/10.2478/scjme-2020-0005 | Journal eISSN: 2450-5471 | Journal ISSN: 0039-2472

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Language: English

Page range: 47 - 56

Published on: May 13, 2020

Published by: Slovak University of Technology in Bratislava

In partnership with: Paradigm Publishing Services

Publication frequency: 2 issues per year

Keywords:

Recuperative heat exchanger,

number of transfer units,

operating characteristic,

heat efficiency

Related subjects:

Engineering,

Mechanical engineering,

Fundamentals of mechanical engineering,

Mechanics

© 2020 Gužela Štefan, Dzianik František, published by Slovak University of Technology in Bratislava
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 70 (2020): Issue 1 (April 2020)