Estimation of solar radiation transmission for polycarbonate retractable swimming pool enclosures

• Autorzy: Zapałowicz Zbigniew , Garnysz-Rachtan Agnieszka

Identyfikatory

DOI

10.24425/ather.2021.136951

• Języki publikacji: EN

Abstrakty

EN

Application of retractable enclosures enables to lengthen operation periods for outdoor swimming pools operated in the moderate climate zone. Enclosures allow to diminish energy losses from water in the pool to the environment. Thermal calculations for pools with retractable enclosures are difficult to carry out because of a number of required parameters which can only be estimated. One of them is the transmission of solar radiation through the enclosure. The present paper presents the method of estimation of this parameter for swimming pool enclosures made of polycarbonate panels that have multichannels structure. In order to calculate transmission, the methodology considering the multiples of solar reflection inside the enclosure and their absorption by polycarbonate has been elaborated. Calculation results for transmission of the enclosure were verified experimentally. Analysis of results show that the transmission depends strongly on the enclosure’s construction and on the direction of solar radiation on the enclosure. Mean transmission values of enclosure under research were determined both from calculations and experiment are equal to about 0.69 and 0.64, respectively. However, experimentally determined mean values of total transmission by parallel and perpendicular solar directions in relation to channel axes are equal to about 0.69 and 0.60, respectively.

Słowa kluczowe

EN

outdoor swimming pool; swimming pool roofing system; pool enclosure; polycarbonate enclosure; solar transmission through enclosure

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2021
• Tom: Vol. 42, no 1
• Strony: 129--146
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Zapałowicz Zbigniew

• West Pomeranian University of Technology in Szczecin, Faculty of Mechanical Engineering and Mechatronics, Department of Energy Technologies, Al. Piastów 19, 70-310 Szczecin, Poland

autor

Garnysz-Rachtan Agnieszka

• West Pomeranian University of Technology in Szczecin, Faculty of Mechanical Engineering and Mechatronics, Department of Energy Technologies, Al. Piastów 19, 70-310 Szczecin, Poland

Bibliografia

• [1] Buonomano A., De Luca G., Figaj R.D., Vanoli L.: Dynamic simulation and thermo-economic analysis of a PhotoVoltaic/Thermal collector heating system for an indoor-outdoor swimming pool. Energ. Convers. Manage. 99(2015), 176–192.
• [2] Chwieduk D.: Solar Energy of Building. Arkady, Warszawa 2011 (in Polish).
• [3] Garnysz A., Zapałowicz Z.: Model of heat and mass transfer in swimming pool with roofing system. In: Proc. XX Int. Tagung “Forschung – Praxis – Didaktik im modernen Maschinenbau”. Stralsund, 21–24 Sept. 2011.
• [4] Garnysz A., Zapałowicz Z.: Thermal calculations for swimming pool with the roofing system. In: Proc. 3rd Int. Conf. Low Temperature and Waste Heat Use in Energy Supply Systems – Theory and Practice. Bremen, 25–26 Oct. 2012, 72–78.
• [5] Garnysz A., Zapałowicz Z.: Model of heat and mass transfer in swimming pools with roofing systems. Developments in Mechanical Engineering Vol. 5 (J.T. Cieśliński, J. Szymczak, Eds.), Gdańsk University of Technology Publishers, Gdańsk 2012, 49–58.
• [6] Garnysz A., Zapałowicz Z.: Influence of environmental conditions on selected thermal parameters for the swimming pool with movable enclosure. Zeszyty Naukowe Politechniki Rzeszowskiej 290, Mechanika, RUTMech XXXI, 86(2014), 2/14, 207– 214 (in Polish).
• [7] Garnysz A., Zapałowicz Z.: Comparison of characteristic thermal parameters for a swimming pool with retractable pool enclosures exploited in autumn and spring seasons. In: Proc. XV Int. Conf. on Heat Transfer and Renewable Sources of Energy (A.A. Stachel, D. Mikielewicz, Eds.), Wydawnictwo Uczelniane ZUT, Szczecin 2014, 301–306.
• [8] Garnysz A.: Experimental study of thermal parameters for the swimming pool with movable transparent enclosure. Instal 1(2014), 33–36 (in Polish).
• [9] Govaer D., Zarmi Y.: Analytical evaluation of direct solar heating of swimming pools. Sol. Energy 27(1981), 6, 529–533.
• [10] Grudzińska M.: Mathematical models of solar transmission through transparent insulation. Fizyka budowli w teorii i praktyce VI(2011), 4, 21–26 (in Polish).
• [11] http://energy.gov/energysaver/articles/swimming-pool-covers (accessed: July 2019).
• [12] http://libart.com/ (accessed: 7 July 2019).
• [13] http://www.alutherm.com.pl/pl/ (accessed: 7 July 2019) (in Polish).
• [14] http://www.aquashield.com (accessed: 7 July 2019).
• [15] http://www.telescopicpoolenclosures.com (accessed: 7 July 2019).
• [16] Katsaprakakis D.A.: Comparison of swimming pools alternative passive and active heating systems based on renewable energy sources in Southern Europe. Energy 81(2015), 738–753.
• [17] Mousia A., Dimoudi A.: Energy performance of open air swimming pools in Greece. Energ. Buildings 90(2015), 166–172.
• [18] Pluta Z.: Theoretical Basis of Photothermal Solar Energy Conversion. Oficyna Wydawnicza Politechniki Warszawskiej, Warszawa 2006 (in Polish).
• [19] Desirable pool. E-fachowiec (2010), 3. http://www.efachowiec.info/ (accessed: 7 July 2019) (in Polish).
• [20] Swimming pool covers, rolling devices and roofing. AstralPool catalog. http://www.astralpool.pl/dokumenty/331–362.pdf (accessed: 7 July 2019) (in Polish).
• [21] Specialists in design, planning and build of aluminium, timber and PVCu pool enclosures. https://www.telescopicpoolenclosures.com/images/telescopic-poolenclosures-brochure.pdf (accessed: 7 July 2019).
• [22] Pool technology. 2014/15. Basenhurt’s catalog. http://www.basenhurt.pl/katalog2014/KatalogBasenHurt2014_15.pdf (accessed: 6 June 2015).
• [23] EN 16153:2013+A1:2015 Light transmitting flat multiwall polycarbonate (PC) sheets for internal and external use in roofs, walls and ceilings. Requirements and test methods.
• [24] ITB: Technical Assessment ITB AT-15-8917/2012. Płyty komorowe z poliweglanu Lexan Thermoclear LT2UV: 62RS, 82 RS, 102 RS, 105 RS, 163TS, 166RS, 165X, 169X, 206RS, 205X, 209X, 256RS, 255X, 259X, 253X and 325X, Warszawa 2013, ISBN 978-83-249-6236-8 (in Polish).
• [25] Lexan Thermoclear: Polycarbonate cellular panels. Technical documentation. Sabic 02.2014 (in Polish).

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).