Improving the Solar Collector Base Model for PVT System
| Authors | K.A. Minakova , R.V. Zaitsev |
| Affiliations |
National Technical University «Kharkiv Polytechnic Institute», 2, Kyrpychova St., 61002 Kharkiv, Ukraine |
| Е-mail | |
| Issue | Volume 12, Year 2020, Number 4 |
| Dates | Received 02 May 2020; revised manuscript received 15 August 2020; published online 25 August 2020 |
| Citation | K.A. Minakova, R.V. Zaitsev, J. Nano- Electron. Phys. 12 No 4, 04028 (2020) |
| DOI | https://doi.org/10.21272/jnep.12(4).04028 |
| PACS Number(s) | 84.60.Jt, 61.43.Bn |
| Keywords | Solar collector, PVT system, Power withdrawn, Water flow rate, Temperature gradient, Heat transfer. |
| Annotation |
The paper proposes a framework of a general model of the thermal exchange of the solar collector and reviews the most important parameters for the heat-transfer processes such as the coefficient of thermal convection of water, the water flow rate and water flow power which are mainly determined by the system parameters and fluid flow rates and also based on experimental studies of the systems. In the model under consideration, it is proposed to take into account the turbulence of the fluid flow, as well as to choose the most effective mode of fluid motion, and, consequently, the fluid flow rate for heat transfer. Methods for increasing the amount of heat, which is removed from the surface of the solar collector, coming to it, at the expense of the total solar radiation, as well as methods of optimization for different temperature gradients are briefly presented in this article. An analysis of the results shows that methods for increasing the efficiency of heat removal from the surface, which corresponds to the achievement of the maximum power withdrawn, strongly depend on the fluid flow rate and temperature gradient. The optimal values of the temperature gradient are identified based on analytics of the fluid flow rate and magnitude of power withdrawn. |
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List of References |
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