SEASONAL HEATING CAPACITY AND THERMAL EFFICIENCY OF FLAT SOLAR WATER HEATING COLLECTORS MADE OF TRANSLUCENT PLASTICS WITH BOTTOM ABSORPTION OF RADIATION

Authors

  • SH.К. Niyazov Gulistan state University
  • F.SH. Kasimov Physical-technical institute AS RUz 2B
  • R.U. Elmuratov Gulistan state University

Keywords:

seasonal heating capacity, thermal efficiency, capacitive solar radiation absorber, bottom absorption beam

Abstract

The article presents a method for processing the results of experimental studies of the daily amount of useful heat accumulated in a capacious receiver of flat solar water heating collectors with bottom absorption of solar radiation and insulated with flat bases. The calculated expression and the results of comparative experimental studies in full-scale conditions of the temperature
regime and thermal efficiency of the above solar collectors located horizontally in the meridional direction along the cardinal directions, i.e. the long axis of the flat base of the collectors is directed from east to west.
As is known, the methods of thermal testing of solar collectors with flow-through radiation receivers, due to their low inertia compared to collectors with capacious receivers, are not acceptable for their testing.
Due to the fact that it is useful in a solar collector with capacious receivers-absorbed and converted into low potential heat from solar energy radiation accumulates during daylight hours. To process the measurement results of the main experimental data, we have improved and applied an integral method based on the use of average daily (or averaged over a certain period of daylight)
values of the measured parameters and the corresponding thermal characteristics.

 

Author Biographies

SH.К. Niyazov, Gulistan state University

 

 

F.SH. Kasimov, Physical-technical institute AS RUz 2B

 

 

R.U. Elmuratov, Gulistan state University

 

 

References

Fried S.E., Lisitskaya N.V. Modern solar collectors: typical parameters and trends of their

changes // Solar engineering. 2018. No.2. - pp. 27-37.

Kirillin V.A., Sychev V.V., Sheindlin A.E. Technical thermodynamics. M.:

Energoatomizdat. 1983. 416 p.

Avezova N.R., Avezov R.R. Dependence of the coefficient of environmental thermal losses

of radiation-absorbing thermal exchange panels of flat solar collectors for heating heat-transfer

fluid from their average operating and ambient temperatures // Applied Solar Energy. – USA.

– Vol.51, No. 1. – pp.10-14 (05.00.00; №4).

R.R.Avezov, F.Sh.Kasimov, Sh.K.Niyazov. Patent for utility model "Capacitive solar water

heating collector" No. FAP 01185, registered in the State Register of Utility Models of the

Republic of Uzbekistan in Tashkent on 22.02.2017.

Avezova N.R., Avezov R.R., Rustamov N.T., Suleimanov Sh.I., Vakhidov A.U. Resource

indexes of flat solar water-heating collectors in hot-water supply systems: 4. Specific collector

thermal yield and efficiency. // Applied Solar Energy.–USA.2013.-Vol.49, No.4.–pp.202-210.

Bogatyreva V. V. Alternative fuel and energy resources: economic and managerial aspects

of use in the conditions of innovative development of society. Novopolotsk: PSU, 2017. - 323 p.

Klein S.A. Calculation of flat-plate collector loss coefficients. Journal of Solar Energy.

V. 17. № 1. – pp. 79-80.

10. Luo B., Hu Zh., Hong X., He W. Experimental study of the water heating performance

of a novel tile shaped dual-function solar collector // Energy Procedia. 2015. V. 70. – pp. 87 – 94.

Wang N., Zeng Sh., Zhou M., et al. Numerical study of flat plate solar collector with novel

heat collecting components // International Communications in Heat and Mass Transfer. 2015. V.

pp. 18–22.

Zambolin E., Del Col D. Experimental analysis of thermal performance of flat plate and

evacuated tube solar collectors in stationary standard and daily conditions // Solar Energy. 2010.

V. 84. pp. 1382-1396.

Suslov K. V., Ukolova Ev. V., Ukolova E. V. Economics and renewable energy sources.

Problems of development of the mineral base of Eastern Siberia: A collection of scientific papers.

Issue 15.Irkutsk. 2015, pp. 94-98.

Downloads

Published

2023-08-20

How to Cite

Niyazov, S., Kasimov, F., & Elmuratov, R. (2023). SEASONAL HEATING CAPACITY AND THERMAL EFFICIENCY OF FLAT SOLAR WATER HEATING COLLECTORS MADE OF TRANSLUCENT PLASTICS WITH BOTTOM ABSORPTION OF RADIATION. JIZPI XABARNOMASI, 1(1), 116–119. Retrieved from https://jurnal.jizpi.uz/index.php/JOURNAL/article/view/36