The development of Fresnel lens concentrators for solar water heaters: a case study in tropical climates
Abstract
This paper discusses the application of Fresnel Lens Concentrator for Solar Water Heater which is a case study in Indonesia. The purpose of this study was to find an empirical equation of the relationship between Direct Normal Irradiance (Ib) and focal point temperature (Tf). The research location is Latitude: 7.9553 °S and Longitude: 112.6145°E. The SM-206 solar power meteris used.The Fresnel lenses are made of PMMA material. Its specifications are: diameter=1000 mm; weight=2 kg; thickness=2 mm; groove pitch=0.5 mm and focal length=880 mm.The main experimental setup consists of a PMMA Fresnel lens and a receiver. The conical cavity receiver has specifications; geometric concentration ratio,CRg=8, and V=2 Liters. Temperature measurement is done using a temperature data acquisition system. The K-type thermocouple is used to measure:
1) ambienttemperature (Ta);
2) the focal point temperature (Tf);
3) receiverwall temperature (Tr);
4) watertemperature (Tw).
The experiment obtained the results of the empirical equation for the relationship between Direct Normal Irradiance (Ib) and focal point temperature (Tf). The increase in solar radiation produces a focus temperature, exponentially. At DNI 858 W/m2 it can produce a focal temperature of up to 1064 °C. The efficiency of the receiving cavity of the thermal cone which contains 2 litres of water and CRg=8 under conditions of relatively Direct Normal Irradiance ( =675 W/m²) is about 10.61 %. Furthermore, the energy that can be generated in heating water is 0.17–0.32 MJ, in 100 minutes. Heat convection and radiation loss can be reduced by adding an insulating layer to the walls and coating the surface with black
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References
Handayani, N. A., Ariyanti, D. (2012). Potency of Solar Energy Applications in Indonesia. International Journal of Renewable Energy Development, 1 (2), 33–38. doi: https://doi.org/10.14710/ijred.1.2.33-38
Widodo, D. A., Purwanto, P., Hermawan, H. (2020). Potential of Solar Energy in Residential Rooftop Surface Area in Semarang City, Indonesia. Advances in Science, Technology and Engineering Systems Journal, 5 (4), 397–404. doi: https://doi.org/10.25046/aj050446
Chamim, A. N. N., Al Hasibi, R. A., Jamal, A., Aprilia, S., Jusman, Y., Jeckson, J. (2019). Analysis of Potential Alternative Energy Sources for Electricity Conservation in Yogyakarta State Finance Building. Journal of Electrical Technology UMY, 3 (3). doi: https://doi.org/10.18196/jet.3360
El Himer, S., El Ayane, S., El Yahyaoui, S., Salvestrini, J. P., Ahaitouf, A. (2020). Photovoltaic Concentration: Research and Development. Energies, 13 (21), 5721. doi: https://doi.org/10.3390/en13215721
Oyewola, O. M., Olukayode, N. E., Ajide, O. O. (2021). Modeling of natural convection of a concentrated solar power receiver absorber tube in interaction with neighbouring absorbers. EUREKA: Physics and Engineering, 5, 53–61. doi: https://doi.org/10.21303/2461-4262.2021.001871
Wang, H., Hu, Y., Peng, J., Song, M., Li, H. (2021). Effects of Receiver Parameters on Solar Flux Distribution for Triangle Cavity Receiver in the Fixed Linear-Focus Fresnel Lens Solar Concentrator. Sustainability, 13 (11), 6139. doi: https://doi.org/10.3390/su13116139
Cano-Nogueras, J., Muñoz-Antón, J., Martinez-Val, J. M. (2021). A New Thermal-Solar Field Configuration: The Rotatory Fresnel Collector or Sundial. Energies, 14 (14), 4139. doi: https://doi.org/10.3390/en14144139
Sarkin, A. S., Dindar, T. (2019). The Effect of Latitude Differences, Sunshine Periods, Solar Radiation Quantities and Air Temperatures on Solar Electricity Generation. International Journal of Smart Grid and Sustainable Energy Technologies, 1 (1), 20–23. doi: https://doi.org/10.36040/ijsgset.v1i1.183
Asrori, A., Suparman, S., Wahyudi, S., Widhiyanuriyawan, D. (2020). An experimental study of solar cooker performance with thermal concentrator system by spot Fresnel lens. Eastern-European Journal of Enterprise Technologies, 5 (8 (107)), 31–41. doi: https://doi.org/10.15587/1729-4061.2020.208638
Setiawan, B., DAMayanti, A. M., Murdani, A., Habibi, I. I. A., Wakidah, R. N. (2018). Fixed Nadir Focus Concentrated Solar Power Applying Reflective Array Tracking Method. IOP Conference Series: Materials Science and Engineering, 336, 012002. doi: https://doi.org/10.1088/1757-899x/336/1/012002
Sierra, C., Vázquez, A. J. (2005). High solar energy concentration with a Fresnel lens. Journal of Materials Science, 40 (6), 1339–1343. doi: https://doi.org/10.1007/s10853-005-0562-6
Asrori, A., Suparman, S., Wahyudi, S., Widhiyanuriyawan, D. (2020). Investigation of steam generation performance on conical cavity receiver by different geometric concentration ratios for fresnel lens solar concentrator. Eastern-European Journal of Enterprise Technologies, 4 (8 (106)), 6–14. doi: https://doi.org/10.15587/1729-4061.2020.209778
Qandil, H., Wang, S., Zhao, W. (2019). Application-based design of the Fresnel lens solar concentrator. Renewables: Wind, Water, and Solar, 6 (1). doi: https://doi.org/10.1186/s40807-019-0057-8
Davis, A., Kühnlenz, F. (2007). Optical Design using Fresnel Lenses. Optik & Photonik, 2 (4), 52–55. doi: https://doi.org/10.1002/opph.201190287
Xie, W. T., Dai, Y. J., Wang, R. Z. (2011). Numerical and experimental analysis of a point focus solar collector using high concentration imaging PMMA Fresnel lens. Energy Conversion and Management, 52 (6), 2417–2426. doi: https://doi.org/10.1016/j.enconman.2010.12.048
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