
Experimental analysis of thermal comfort in an open plan office has been presented in the paper. The office of interest is air conditioned by two parallel ceiling air terminal devices (ATDs). With the aim of mathematical description of the main characteristics of turbulent wall jets produced by the ATDs, a set of experimental measurements was carried out using the laser-Doppler-anemometer (LDA) method. Velocity profiles in the jets, axial velocity decay and other relevant jet characteristics were investigated for three distances between the ATDs and three fan speeds. For all nine cases, in the second phase of the measurements temperature and velocity fields within the occupied zone were determined and thermal comfort evaluated. The measurements were carried out in a full-scale test room at the Faculty of Engineering University of Rijeka. * Defended Doctoral Thesis (2010)
U radu je izvršena pokusna analiza toplinske ugodnosti uredskoga prostora klimatiziranoga istovremenim radom dvaju podstropnih, paralelnih terminalnih uređaja. S ciljem matematičkoga opisa značajki turbulentnih površinskih mlazova proizvedenih radom terminalnih uređaja, metodom laser-Doppler-anemometriranja (LDA) izvršen je čitav niz pokusnih mjerenja. Istraženi su profili brzina u mlazovima, opadanje maksimalne brzine i druge relevantne značajke, za tri različite udaljenosti između terminalnih uređaja i za tri brzine vrtnje ventilatora. Za svih devet analiziranih slučajeva, u drugoj fazi mjerenja utvrđena je raspodjela temperaturnih i polja brzina unutar zone boravka, te je ocijenjena razina toplinske ugodnosti. Sva su mjerenja odrađena na modelu uredskoga prostora stvarne veličine, na Tehničkome fakultetu Sveučilišta u Rijeci. * Obranjena doktorska disertacija (2010.)
Laser-Doppler-Anemometry, air distribution; Laser-Doppler-Anemometry; thermal comfort; turbulent wall jets, PMV-PPD model, Toplinska ugodnost, thermal comfort, air distribution, turbulent wall jets, Air distribution, Laser-Doppler-anemometriranje, Thermal comfort, Turbulent wall jets, Turbulentni površinski mlazovi
Laser-Doppler-Anemometry, air distribution; Laser-Doppler-Anemometry; thermal comfort; turbulent wall jets, PMV-PPD model, Toplinska ugodnost, thermal comfort, air distribution, turbulent wall jets, Air distribution, Laser-Doppler-anemometriranje, Thermal comfort, Turbulent wall jets, Turbulentni površinski mlazovi
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