10

  • Web Address
  • DOI
  • Date of creation in the UzSCI system24-04-2024
  • Read count9
  • Date of publication20-04-2024
  • Main LanguageO'zbek
  • Pages37-43
Tags
English

This study is the prediction, depending on time and different geographical and
climatic situations, of different operating parameters: solar radiation, ambient and outlet coolant
temperature, heat exchange coefficients and losses. All these determine, in the absence of
measurements, the efficiency of the system modelled with existing models with respect to these
parameters. These models are usually compared with experimental results. Before modelling, it is
necessary to investigate the different heat transfer and exchange regimes that exist between the
different elements of this system in order to eventually have a system of equations governing this
exchange. The modelling principle is to record the energy balances of each element that makes up the
collector, absorber, glass, insulator and coolant. For this purpose, several models are encountered,
two modelling approaches are also encountered.
 

Name of reference
1 1. Avezov R.R., Lutpullaev S.A. State of prospects and problems of renewable energy sources utilisation. // "Physics in Uzbekistan" Materials of the conference "Year of Physics-2005" - Tashkent: Academy of Sciences of Uzbekistan, 27-28 September 2005 P.119-123. 2. Zakhidov R.A., Saidov M.S. Renewable energy in the beginning of XXI century and prospects of solar engineering development in Uzbekistan. // Heliotechnics. 2009. №1. С.3-12. 3. Avezov R.R. Influence of heat exchange conditions on temperature regimes and heat transfer of a partially radiant absorbing layer of a complex translucent enclosure of insolation passive solar heating systems. // Heliotekhnika, 2004. №4. С.32-38.
2 4. Avezova N.R., Samiev K.A., Khaetov A.R., et al. Modeling of the unsteady temperature conditions of solar greenhouses with a short-term water heat accumulator and its experimental testing // Applied Solar Energy, 2010.V.26.p.4-
3 5. Akhatov J.S., Khalimov A.S. Numerical calculations of heat engineering parameters of solar dryergreenhouse. // Heliotekhnika, 2015. No.2. С.26-30. 6. Babaev B.J. Development and research of power systems on the basis of renewable sources with phase transition heat accumulation. Dissertation. doctor of technical sciences. Makhachkala, 2016. -345 с. 7. Duffy J., Beckman U. Fundamentals of Solar Thermal Power Engineering: Translated from English by O.S. Popel, S.E. Fried, G.A. Gukhman, et al: Reference Manual //Edited by O.S. Popel. -Dolgoprudny: Intellect Publishing House, 2013. -888 с. 8. Shabane F., Mummy N., Benramache S. Experimental study of heat transfer and thermal performance using longitudinal fins of a solar air heater. Journal of Advanced Research. Vol.5, Issue No.2, 2014. - С.183-192.
4 9. Shabane F., Mummy N., Benramache S. Experimental study of heat transfer for a solar air heater and the contribution of fins to thermal efficiency. International journal of advanced research in renewable energy. Vol. 1, vol.9, 2012. -С.487-494. 10. Lykov A.V. Theory of drying. -M.: Energia, 1968. -471 с. 11. Lebedev P.D. Calculation and design of drying plants. - Moscow: State Energy Publishing House, 1963. - 320 с. 12. Sazhin B.S. Fundamentals of drying technique. -M., Khimiya, 1985. -320 с. 13. Lykov A.V., Vasiliev L.L. Heat and mass transfer at low temperatures. -Minsk: Science and Technology, 1970. -175 с.
5 14. Ponasenko A.S., Sultanova Sh.A., Samandarov D.I., Safarov J.E. Results of experimental study of thermal air flow in the drying process. // Universum: Technical Sciences. -Moscow, 2024. No.1(118), part 3. -С.5-9. 15. Mambetsheripova A.A., Sultanova Sh.A., Safarov J.E., Gurbuz Gunesh. Study of thermophysical characteristics of medicinal plant raw materials. //Vestnik KSU named after Berdakh. - Nukus. № 3(61). 2023. С.46- 50. 16. Ponasenko A.S., Safarov J.E., Sultanova Sh.A. Improvement of convective drying equipment. // Technical science and innovation. -Tashkent, 2023. №4. Р.65-69. 17. Dadayev G., Safarov J., Sultanova Sh., Muxiddinov Q. Mathematical modelling of fruit drying and system analysis of the process (on the example of persimmon). // Technical science and innovation. - Tashkent, 2023. №4. Р.60-65.
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