Naslov
Estimating heat losses in solar collectors by IR thermography and numerical simulations

Autori
Dović, Damir ; Švaić, Srećko, Galović, Antun

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
, Proceed. Of the 9th International Conference on Quantitative InfraRed Thermogrphy / Secretary of QIRT2008 - Krakov : QIRT, 2008, 415-420

Skup
9th International Conference on Quantitative InfraRed Thermogrphy

Mjesto i datum
Kraków, Poljska, 02.07.2008. - 05.07.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
numerical simulations; IR thermography; solar collector; heat losses; efficiency; absorber plate

Sažetak
The paper demonstrates application of numerical methods supported by IR thermography for heat transfer evaluation in two types of plate solar collectors: with and without tubes. Numerical simulations of collector heat losses are performed in order to analyze influence of the welding between absorber plate and tubes on the collector efficiency. Results are compared with the collector thermal test data and IR measurements of absorber temperature field. The prototype of plate collector without tubes is investigated through numerical simulations of heat losses which are compared against the experimental values. A method for estimating the local heat transfer coefficients on the working fluid side in the prototype collector by means of IR thermography is presented and computed values compared against the experimental ones.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA