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Performance o f Unglazed Photovoltaic-thermal Collectors f or Cooling Purpose. UCEEB CTU in Prague Nikola Pokorny , Viacheslav Shemelin, Tomas Matuska CESB 2019 – 3. 7. 2019. Motivation. By the end of 2018, more than 1 mil. m 2 of PVT collector area were installed worldwide.
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Performance of Unglazed Photovoltaic-thermal Collectors for Cooling Purpose UCEEB CTU in Prague Nikola Pokorny,Viacheslav Shemelin,Tomas Matuska CESB 2019 – 3. 7. 2019
Motivation By the end of 2018, more than 1 mil. m2 of PVT collector area wereinstalled worldwide Ramschak, T., PVT – Systems in operation, IEA TASK 60, 2019
Motivation - Night cooling by PVT collectors new TRNSYS type240 for night cooling Tsky = 0 °C radiation Tambient = 30 °C convection Tin= 20 °C • insulationyes/no? • materialofabsorber?
Experimentalmeasurement IVAR1 VAR1 REF VAR2
Simulationanalysis Chilledwatertemperature 20 °C – onlysummerseason • potential to increase cooling power of unglazed PVT colectors • smalldifference in coolingpowerbetweenvariants on the market Northern and CentralEurope– averagecoolingpower 110 W/m2 SouthernEurope - averagecoolingpower40 W/m2
Thankyouforyourattention nikola.pokorny@fs.cvut.cz http://task60.iea-shc.org/