Eksperimentalno vrednotenje delovanja IR ogrevalnih panelov z vidika toplotnega udobja

Ogrin, Katja (author), Dovjak, Mateja (mentor), Košir, Mitja (comentor)

Namen magistrske naloge je ovrednotiti delovanje sevalnega sistema ogrevanja z IR-paneli po Pravilniku o prezračevanju in klimatizaciji stavb z vidika toplotnega udobja in ga primerjati s klasičnim konvekcijskim sistemom (radiatorjem). Opravili smo sistematični pregled literature na področju delovanja različnih tipov ogreval, izbrali kriterije toplotnega udobja po veljavni zakonodaji in izvedli eksperimentalni del primerjave obeh sistemov. V eksperimentalnem delu smo v tri testne prostore vgradili dva IR-panela različnih proizvajalcev (A in B) ter radiator. Meritve izbranih parametrov toplotnega udobja smo opravili v zimskem času od 1. decembra 2015 do 15. februarja 2016. Na osnovi rezultatov smo definirali pomanjkljivosti ogrevalnih sistemov in izvedli optimizacijo delovanja IR-panelov. Izmerjeni parametri toplotnega udobja so se med sistemoma razlikovali. Na karakteristični dan so vse izmerjene vrednosti v testnem prostoru s panelom B in testnem prostoru z radiatorjem ustrezale zahtevam Pravilnika o klimatizaciji in prezračevanju stavb. V prostoru, kjer je bil panel A, je bilo več parametrov toplotnega udobja neustreznih. Med vsemi meritvami za karakteristični dan je bilo v tem prostoru trinajst odstotkov rezultatov neustreznih. V prostorih, kjer smo vgradili IR-panele, se je pojavila previsoka površinska temperatura panela, kar se je odražalo v sevalni asimetriji oz. lokalnem toplotnem neudobju. To smo poskušali rešiti z optimizacijo prostora, in sicer z omejitvijo najvišje temperature panela in spremembo njegovega položaja. Najvišjo dovoljeno površinsko temperaturo IR-panela smo določili glede na zahteve iz pravilnika in s tem preprečili nastanek sevalne asimetrije ter zagotovili celostno toplotno udobje. Predstavljen potek vrednotenja se lahko uporabi pri vrednotenju katerega koli sistema za ogrevanje ali hlajenje v notranjem okolju. Za celovito vrednotenje sistemov ogrevanja in hlajenja bi bilo treba vključiti tudi ostale parametre udobja in porabo energije.

• Language: Slovenian
• Keywords: IR-paneli, ogrevanje, toplotno udobje, raba energije
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publisher: [K. Ogrin]
• Year: 2017
• PID: 20.500.12556/RUL-92397
• UDC: 697(043.3)
• COBISS.SI-ID: 8080737
• Publication date in RUL: 01.06.2017

OGRIN, Katja, 2017, Eksperimentalno vrednotenje delovanja IR ogrevalnih panelov z vidika toplotnega udobja [online]. Master’s thesis. K. Ogrin. [Accessed 25 March 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=92397

Secondary language

• Language: English
• Title: Experimental evaluation of IR heating panels' performance in terms of thermal comfort

Abstract

The purpose of this Master's thesis is to evaluate the functionality of the radiational heating system with IR panels as in accordance with the regulations on the ventilation and air-conditioning of buildings in terms of thermal comfort, and compare it with a conventional heat transfer system (radiator). We conducted a systematic review of the literature in the field of functionality of various types of heating systems. Thermal comfort criteria were chosen in line with the applicable legislation and we performed an experimental comparison of the two systems. In experimental work we had three test areas installed with two IR panels by different manufacturers (A and B) and a radiator. The measurements of selected parameters of thermal comfort were performed in the winter from December 1st 2015 to February 15th 2016. Based on the results we defined the disadvantages of the heating systems and conducted an optimization of IR panels. The measured parameters of thermal comfort have differed between the two systems. On the reference day all measured values in the test area with the panel B and the test area with the radiator have met the requirements of the regulations. In the room where the panel A was installed, there were more inappropriate parameters of thermal comfort. Of the total number of measurements for this characteristic day for this room thirteen percent of the results were inadequate. In rooms where we installed the IR panels, surface temperature of the panel had been too high, which resulted in radiant asymmetry and local thermal discomfort. We tried to solve this by limiting the maximum temperature of the panel and by changing its position. The maximum allowable surface temperature of the IR panels was determined according to the requirements of the regulations and therefore the onset of radiant asymmetry was prevented and an overall thermal comfort was provided. The presented course of evaluation can be used in the evaluation of any heating or cooling system in the internal environment. For the purposes of the overall evaluation of heating and cooling systems it would be necessary to also include other parameters of comfort and energy use.

• Keywords: IR-panels, heating, thermal comfort, energy use