Theoretical And Mathematical Analysis Of Double- Circuit Solar Station With Thermo Siphon Circulation
Abstract
This article
discusses the mathematical models of the individual structures and modes of
operation of a double-circuit solar collector with thermo siphon circulation.
To perform this task, we considered a new design of a flat solar collector with
thermo siphon circulation, in which the heat transfer coefficient was increased
by eliminating additional partitions between the panel and thermal insulation.
The efficiency of the solar collector is achieved due to the presence of the
metering tank and the heat pump in the tank, where the condenser and evaporator
are made in the form of a “spiral in a spiral” type heat exchanger, and the
heat exchanger pipelines are placed one above the other, which allows increasing
the area and intensity of heat exchange. The result of this work is a
theoretical and mathematical analysis of the unsteady thermal regime of flat
solar collectors on the modes of operation under consideration. Based on the
results of the analysis, it is possible to optimize individual structural
elements, as well as to predict the thermal regime and select alternative
solutions for the design of flat solar collectors and the choice of operating
modes.
References
- [1] J. R. Wixson. Function Analysis and Decomposition Using Function Analysis Systems Technique. International Council on Systems Engineering Annual Conference (INCOSE ’99) June 6, 1999 – June 10, 1999 [2] Tomas, M.; Vladimir, Z.; Juliane, M. Detailed modeling of solar flat-plate collectors with design tool kolektor 2.2, building simulation. In Eleventh International IBPSA Conference, Glasgow, Scotland; IBPSA: Loughborough, UK, 2009; 2289–2296. [3] Duffie, J.A.; Beckman, W.A. Solar Engineering of Thermal Processes, 2nd ed.; John Wiley & Sons, Inc.: New York, 1980; 23, 73–74, 95–101. [4] Koyuncu, T. Performance of various design of solar air heaters for crop drying applications. Renewable Energy 2006, 31, 1073–1088. [5] Kicsiny, R. Improved multiple linear regression based models for solar collectors. Renewable Energy 2016, 91, 224–232. [6] Gao, W.; Lin, W.; Liu, T.; Xia, C. Analytical and experimental studies on the thermal performance of cross-corrugated and flat plate solar air heaters. Applied Energy 2007, 84(4), 425–441. [7] Alvarez, A.; Cebaza, O.; Muñiz, M.C.; Varela, L.M. Experimental and numerical investigation of a flat-plate solar collector. Energy 2010, 35, 3707–3716. [8] Buzás, J.; Farkas, I.; Biró, A.; Németh, R. Modelling and simulation of a solar thermal system. Mathematics and Computers in Simulation 1998, 48, 33–46. [9] Chow, T.T.; He, W.; Ji, J. Hybrid photovoltaicthermosyphon water heating system for residential application. Solar Energy 2006, 80, 298–306. [10] Ji, J.; He, H.; Chow, T.; Pei, G.; He, W.; Liu, K. Distributed dynamic modeling and experimental study of PV evaporator in a PV/T solar-assisted heat pump. International Journal of Heat and Mass Transfer 2009, 52, 1365–1373. [11] Tiwari, A.; Sodha, M.S. Parametric study of various configurations of hybrid PV/thermal air collectors: Experimental validation of theoretical model. Solar Energy Materials and Solar Cells 2007, 91, 17–28. [12] Talbot, P.; Lhote, M.; Heilporn, C.; Schubert, A.; Willaert, F.-X.; Haut, B. Ventilated tunnel solar dryers for small-scale farmers communities: Theoretical and practical aspects. Drying Technology 2016, 34, 1162–1174. [13] Duffie, J.A.; Beckman, W.A. Solar Engineering of Thermal Processes; John Wiley Sons: Hoboken, NJ, USA, 1980; Chapter 12, pp. 487–497. [14] Prapas, D.E.; Veliannis, I.; Evangelopoulos, A.; Sotiropoulos, B.A. Large DHW solar systems with distributed storage tanks. Sol. Energy 1995, 35, 175–184. [15] Chang, K.C.; Lin, W.M.; Lee, T.S.; Chung, K.M. Local market of solar water heaters in Taiwan: Review and perspectives. Renew. Sustain. Energy Rev. 2009, 13, 2605–2612. [16] Lin, W.M.; Chang, K.C.; Liu, Y.M.; Chung, K.M. Field surveys of non-residential solar water heating systems in Taiwan. Energies 2012, 5, 258–269. [17] Karagiorgas, M.; Botzios, A.; Tsoutsos, T. Industrial solar thermal applications in Greece economic evaluation, quality requirements and case studies. Renew. Sustain. Energy Rev. 2001, 5, 157–173.
Theoretical And Mathematical Analysis Of Double- Circuit Solar Station With Thermo Siphon Circulation
Abstract
This article
discusses the mathematical models of the individual structures and modes of
operation of a double-circuit solar collector with thermo siphon circulation.
To perform this task, we considered a new design of a flat solar collector with
thermo siphon circulation, in which the heat transfer coefficient was increased
by eliminating additional partitions between the panel and thermal insulation.
The efficiency of the solar collector is achieved due to the presence of the
metering tank and the heat pump in the tank, where the condenser and evaporator
are made in the form of a “spiral in a spiral” type heat exchanger, and the
heat exchanger pipelines are placed one above the other, which allows increasing
the area and intensity of heat exchange. The result of this work is a
theoretical and mathematical analysis of the unsteady thermal regime of flat
solar collectors on the modes of operation under consideration. Based on the
results of the analysis, it is possible to optimize individual structural
elements, as well as to predict the thermal regime and select alternative
solutions for the design of flat solar collectors and the choice of operating
modes.
References
- [1] J. R. Wixson. Function Analysis and Decomposition Using Function Analysis Systems Technique. International Council on Systems Engineering Annual Conference (INCOSE ’99) June 6, 1999 – June 10, 1999 [2] Tomas, M.; Vladimir, Z.; Juliane, M. Detailed modeling of solar flat-plate collectors with design tool kolektor 2.2, building simulation. In Eleventh International IBPSA Conference, Glasgow, Scotland; IBPSA: Loughborough, UK, 2009; 2289–2296. [3] Duffie, J.A.; Beckman, W.A. Solar Engineering of Thermal Processes, 2nd ed.; John Wiley & Sons, Inc.: New York, 1980; 23, 73–74, 95–101. [4] Koyuncu, T. Performance of various design of solar air heaters for crop drying applications. Renewable Energy 2006, 31, 1073–1088. [5] Kicsiny, R. Improved multiple linear regression based models for solar collectors. Renewable Energy 2016, 91, 224–232. [6] Gao, W.; Lin, W.; Liu, T.; Xia, C. Analytical and experimental studies on the thermal performance of cross-corrugated and flat plate solar air heaters. Applied Energy 2007, 84(4), 425–441. [7] Alvarez, A.; Cebaza, O.; Muñiz, M.C.; Varela, L.M. Experimental and numerical investigation of a flat-plate solar collector. Energy 2010, 35, 3707–3716. [8] Buzás, J.; Farkas, I.; Biró, A.; Németh, R. Modelling and simulation of a solar thermal system. Mathematics and Computers in Simulation 1998, 48, 33–46. [9] Chow, T.T.; He, W.; Ji, J. Hybrid photovoltaicthermosyphon water heating system for residential application. Solar Energy 2006, 80, 298–306. [10] Ji, J.; He, H.; Chow, T.; Pei, G.; He, W.; Liu, K. Distributed dynamic modeling and experimental study of PV evaporator in a PV/T solar-assisted heat pump. International Journal of Heat and Mass Transfer 2009, 52, 1365–1373. [11] Tiwari, A.; Sodha, M.S. Parametric study of various configurations of hybrid PV/thermal air collectors: Experimental validation of theoretical model. Solar Energy Materials and Solar Cells 2007, 91, 17–28. [12] Talbot, P.; Lhote, M.; Heilporn, C.; Schubert, A.; Willaert, F.-X.; Haut, B. Ventilated tunnel solar dryers for small-scale farmers communities: Theoretical and practical aspects. Drying Technology 2016, 34, 1162–1174. [13] Duffie, J.A.; Beckman, W.A. Solar Engineering of Thermal Processes; John Wiley Sons: Hoboken, NJ, USA, 1980; Chapter 12, pp. 487–497. [14] Prapas, D.E.; Veliannis, I.; Evangelopoulos, A.; Sotiropoulos, B.A. Large DHW solar systems with distributed storage tanks. Sol. Energy 1995, 35, 175–184. [15] Chang, K.C.; Lin, W.M.; Lee, T.S.; Chung, K.M. Local market of solar water heaters in Taiwan: Review and perspectives. Renew. Sustain. Energy Rev. 2009, 13, 2605–2612. [16] Lin, W.M.; Chang, K.C.; Liu, Y.M.; Chung, K.M. Field surveys of non-residential solar water heating systems in Taiwan. Energies 2012, 5, 258–269. [17] Karagiorgas, M.; Botzios, A.; Tsoutsos, T. Industrial solar thermal applications in Greece economic evaluation, quality requirements and case studies. Renew. Sustain. Energy Rev. 2001, 5, 157–173.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Article |
| Authors | |
| Publication Date | June 1, 2019 |
| Submission Date | December 2, 2018 |
| Published in Issue | Year 2019 Volume: 22 Issue: 2 |
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