Reconfiguring TRNSYS Type 158 for direct fired water heaters: Model verification and simulation performance analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00376506" target="_blank" >RIV/68407700:21220/24:00376506 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21720/24:00376506

Result on the web

<a href="https://doi.org/10.1016/j.enbuild.2024.114692" target="_blank" >https://doi.org/10.1016/j.enbuild.2024.114692</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.enbuild.2024.114692" target="_blank" >10.1016/j.enbuild.2024.114692</a>

Result language

angličtina

Original language name

Reconfiguring TRNSYS Type 158 for direct fired water heaters: Model verification and simulation performance analysis

Original language description

This article presents novel insights into direct-fired water heaters with a storage tank, making a significant contribution to the scientific community. The paper has two main objectives. Firstly, it examines the possibility of reconfiguring the standard mathematical model Type 158, originally designed for indirect heated storage tanks in the TRNSYS database, for use with direct heated storage tanks. The study demonstrates that the reconfigured Type 158 model produces deviations in water temperature during charging, ranging from -2.3 % to + 0.80 % compared to the manufacturer’s technical specifications. A detailed procedure for reconfiguring this model is provided, filling a gap in existing literature. Secondly, the paper uses the reconfigured model to analyse the usage of direct water heaters for dual purposes: space heating and hot water supply. System simulations in three realistic installation scenarios—single-family house, hand car wash, and apartment building—validate the findings. The first scenario evaluates the heater at very low load, the second assesses its performance with low space heating and high hot water demand, and the third highlights potential shortcomings in buildings with high space heating and hot water demand. These simulations provide valuable data on the heater’s ability to meet energy supply needs in different contexts, demonstrating its practicality and effectiveness.

Czech name

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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

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OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Energy and Buildings

ISSN

0378-7788

e-ISSN

1872-6178

Volume of the periodical

322

Issue of the periodical within the volume

-

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

18

Pages from-to

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UT code for WoS article

001301755200001

EID of the result in the Scopus database

2-s2.0-85201908535