UTILIZATION OF SOLAR ENERGY IN GREENHOUSE HEATING DURING WINTER SEASON IN EGYPT

Nasser, Sahar S.; Bahnasawy, Adel H.; Ashour, Taha H.; Khater, Elsayed G.

doi:10.21608/mjae.2021.59760.1023

	UTILIZATION OF SOLAR ENERGY IN GREENHOUSE HEATING DURING WINTER SEASON IN EGYPT
Misr Journal of Agricultural Engineering
Article 7, Volume 38, Issue 2, April 2021, Page 181-194 PDF (736.09 K)
Document Type: Original Article
DOI: 10.21608/mjae.2021.59760.1023
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Authors
Sahar S. Nasser¹; Adel H. Bahnasawy²; Taha H. Ashour²; Elsayed G. Khater ³
¹MSc Stud., Ag. Eng. Dept., Fac. of Ag., Benha U., Egypt.
²Prof., Ag. Eng. Dept., Fac. of Ag., Benha U., Egypt.
³Assoc. Prof., Ag. Eng. Dept., Fac. of Ag., Benha U., Egypt.
Abstract
The main aim of this study is to investigate the utilization of solar energy as a renewable energy source and compared to the traditional energy in greenhouses heating during winter season. To achieve that study, the effect of two different heating systems (Traditional heating (G1) and solar heating (G2)) on the cucumber growth parameters during growth period and cucumber fruit characteristics and total yield were investigated. Temperature and relative humidity during the growth season were recorded. The obtained results indicated that the indoor air temperatures ranged from 18.78 to 25.29 and 18.00 to 25.15 ᵒC for G1 and G2, respectively, whereas the outdoor air temperature ranged from 11.00 to 21.66 ᵒC. The temperatures were added by using electrical (G1) and solar energy (G2) for greenhouse heating ranged from 1.5 to 9.3 and 0.85 to 7.78 ᵒC, respectively, during experimental period. The indoor relative humidity ranged from 63.33 to 88.67 and 70.93 to 93.94 % for G1 and G2, respectively, whereas the outdoor air relative humidity ranged from 45.93 to 92.73 %. The plant length, stem diameter and total leaf area values for cucumber grown in G1 were higher than those of the plant growth in G2. The fruit length was 24.79 and 19.44 cm for G1 and G2, respectively. The fruit diameters were 3.36 and 3.19 cm for G1 and G2, respectively. The results also indicate that the fruit weight and number of fruits per plant were 115.07 and 108.73 g and 19 and 17 for G1 and G2, respectively. The total yield values of cucumber were 182.09 and 152.92 kg for G1 and G2, respectively, during growth period.
Keywords
Cucumber; solar energy; air temperature; fruit weight; yield


References
Challa, H., E. Heuvelink and U. Van Meeteren (1995). Crop growth and development. Pages 62–84 in J. C. Bakker, G. P. A. Bot, H. Challa, and N. J. Van de Braak, eds. Greenhouse climate control – an integrated approach. Wageningen Pers, Wageningen, The Netherlands. FAO (1991). Localized irrigation. Irrigation and Drainage, Paper No. 36: 144P. Grimstad, S.O. and E. Frimanslund (1993). Effect of different day and night temperature regimes on greenhouse cucumber young plant production, flower bud formation and early yield. Sci. Hortic., 53: 191–204. Hanan, N., J. Morgan, T. Peterson, J. Reuder, I. Burke and K. Paustion (2003). Carbon, water and land-use in conservation reserve program lands of the short grass prairie. NIGEC-GPRC 2003. Annual Meeting, Lincoln, Nebraska, August 18, 2003. Khater, E.G., T.H. Ashour, S.A. Ali, M. Saad, J. Todic, J. Hollands and A. Korjenic (2020). Development of a Bio-Solar House Model for Egyptian Conditions. Energies, 13(817): 1-27. Kittas, C., N. Rigakis, N. Katsoulas and T. Bartzanas (2009). Influence of shading screens on mcroclimate, growth and productivity of tomato. Acta Hort., 807: 235 – 243. Lazaar, M., S. Bouadila, S. Kooli and A. Farhat (2015). Comparative study of conventional and solar heating systems under tunnel Tunisian greenhouses: thermal performance and economic analysis. Sol Energy, 120: 620–35. Marcelis, L.F.M. and L.R.B. Hofman-Eijer (1993). Effect of temperature on the growth of individual cucumber fruits. Physiol. Plant. 87: 321–328. Nelson, P.V. (2006). Greenhouse operation and management. Fourth edition, Prentice-Hall, Inc., New Jersey 07632. Öztürk, H.H. and A. Başçetinçelik (2003b). Energy and exergy efficiency of a packed-bed heat storage unit for greenhouse heating. hhozturk@cu.edu.tr. Sethi, V.P. and S.K. Sharma (2008). Survey and evaluation of heating technologies for worldwide agricultural greenhouse applications. Solar Energy, 82, 832–859. Slack, G. and A. Calvert (1978). Effects of within-night temperature changes on fruit production in early tomatoes. Rep. Glasshouse Crops Res. Inst. 77: 49–51. Slack, G. and D.W. Hand (1983). The effect of day and night temperature on the growth, development and yield of glasshouse cucumbers. J. Hortic. Sci., 58: 567–573. Vadiee, A. and V. Martin (2012). Energy management in horticultural applications through the closed greenhouse concept, state of the art. Renewable and Sustainable Energy Reviews, 16(7): 5087-5100. Vourdoubas, J. (2004). Comparison of greenhouse heating with geothermal energy, biomass and solar energy. in the conference Geothermal energy applications in agriculture, Athens, Greece. Zhang, L., P. Xu, J. Mao, X. Tang, Z. Li and J. Shi (2015). A low cost seasonal solar soil heat storage system for greenhouse heating: design and pilot study. Appl. Energy, 156: 213–22.
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