LABORATORY STAND FOR STUDYING THE EFFECTIVENESS OF USING NANOFLUIDS TO INTENSIFY HEAT TRANSFER IN HYBRID SOLAR COLLECTORS

The article discusses the issues of studying heat transfer in hybrid solar collectors using a developed laboratory stand. The issue of solar energy efficiency is very important in light of the modern concept of carbon neutrality. One of the most promising solar energy technologies is the use of hybrid solar collectors, where, along with electrical energy, thermal energy is also generated. The heat removed from the surface of the solar panel allows to maintain a high level of its efficiency, and the heat removed is used by the consumer. One of the most effective methods for intensifying heat transfer in hybrid solar collectors is the use of nanofluids as a coolant. Nanofluids are a new type of coolant with increased thermal conductivity, consisting of a base fluid and nanoparticles. The most commonly used and economically feasible are nanofluids with the addition of metal oxides. The developed laboratory stand will allow simulating solar radiation and studying the currentvoltage characteristics of the solar panel at different lighting levels. The use of different types of nanofluids will allow to determine the most efficient operating modes of a hybrid solar collector. Analysis of thermal and electrical efficiency will provide a more complete picture of production when hybrid solar collectors operate in various modes using different types of nanofluids.

1. Dzhumamukhambetov N.G. Development of renewable energy in Kazakhstan / N.G. Dzhumamukhambetov, V.A. Yashkov // Publisher agency: Proceedings of the 4th International Scientific Conference «Scientific Research and Experimental Development» (September 28-29, 2023). – London, England, 2023. – 202 p.

2. Schultz H.S. Design, greenhouse emissions, and environmental payback of a Photovoltaic Solar Energy System / H.S. Schultz, M. Carvalho // Energies. – 2022. – Т. 15, № 16. – P. 6098.

3. Sharif A. A step towards sustainable development: role of green energy and environmental innovation / A. Sharif, U. Mehmood, S. Tiwari // Environment, Development and Sustainability. – 2024. – V. 26, № 4. – P. 9603-9624.

4. Role of solar energy in reducing ecological footprints: An empirical analysis / A. Sharif et al // Journal of Cleaner Production. – 2021. – V. 292. – P. 126028.

5. Investigation of the effect temperature on photovoltaic (PV) panel output performance / A.R. Amelia et al // Int. J. Adv. Sci. Eng. Inf. Technol. – 2016. – V. 6, № 5. – P. 682-688.

6. Peng Z. Cooled solar PV panels for output energy efficiency optimisation / Z. Peng, M.R. Herfatmanesh, Y. Liu // Energy conversion and management. – 2017. – V. 150. – P. 949-955.

7. Siecker J. A review of solar photovoltaic systems cooling technologies / J. Siecker, K. Kusakana, B.P. Numbi // Renewable and Sustainable Energy Reviews. – 2017. – V. 79. – P. 192-203.

8. Advances in PV and PVT cooling technologies: A review / A.K. Hamzat et al // Sustainable Energy Technologies and Assessments. – 2021. – V. 47. – P. 101360.

9. Nasrin R. Water/MWCNT nanofluid based cooling system of PVT: Experimental and numerical research / R. Nasrin, N.A. Rahim, H. Fayaz // Renewable energy. – 2018. – V. 121. – P. 286-300.

10. Experimental investigations on unglazed photovoltaic-thermal (PVT) system using water and nanofluid cooling medium / G.S. Menon et al // Renewable Energy. – 2022. – V. 188. – P. 986-996.

11. Mahmood Alsalame H.A. Performance Evaluation of a Photovoltaic Thermal (PVT) system using nanofluids / H.A. Mahmood Alsalame, J.H. Lee, G.H. Lee // Energies. – 2021. – V. 14, № 2. – P. 301.

12. Intensification of heat transfer in hybrid solar collectors by using nanofluids as a coolant / A. Kassymov et al //Scientific journal «Reports of the Academy of Sciences of the Republic of Kazakhstan». – 2023. – V. 348, № 4. – P. 69-79.