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Experimental analysis of an improved regulation concept for multi-panel heating radiators : proof-of-concept
Prek, Matjaž (Author), Krese, Gorazd (Author)

URLURL - Source URL, Visit https://www.sciencedirect.com/science/article/pii/S036054421831404X?via%3Dihub This link opens in a new window

Abstract
Lower heating demands for space heating impose new requirements for the operation of radiators. Contemporary type of new building construction, retrofitted buildings with smaller heat losses and higher requirements for energy efficiency and thermal comfort, demand an improved radiator design and regulation of heat output. As heating systems mostly operate at part loads, it is important to adopt the heat output as quickly as possible to the variable conditions. This paper presents an experimental validation of an improved heat output regulation concept for multi-panel radiators. A novel concept of water flow arrangement for double panel radiators was investigated. The proposed design enables different sequential water flows through each parallel connected panel. The experimental analysis was carried out in two steps: first, the heat output was studied in a nominal steady state at standard testing conditions; second, the radiator was tested at transient conditions. The results show that the implementation of the modified water flow arrangement significantly improves the transient response of heating radiators in terms of reduced time delay and balancing time. An improvement of the regulation ability, expressed as controllability, was also identified.

Language:English
Keywords:heating radiators, heat output, transient response, infrared thermography
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2018
Number of pages:str. 52-59
Numbering:Vol. 161
UDC:620.9(045)
ISSN on article:0360-5442
DOI:10.1016/j.energy.2018.07.107 Link is opened in a new window
COBISS.SI-ID:16154395 Link is opened in a new window
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Downloads:89
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Record is a part of a journal

Title:Energy
Shortened title:Energy
Publisher:Pergamon Press
ISSN:0360-5442
COBISS.SI-ID:25394688 This link opens in a new window

Secondary language

Language:Slovenian
Keywords:radiatorji, toplotna moč, prehodni odziv, infrardeča termografija

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