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Technical and economic analysis of replacing artificial lighting system to induction of photoperiod effect in begonia's seedlings in greenhouse REA
David,Eduardo; Rossi,Luiz Antonio; Pagliardi,Odail.
The type of artificial light used for inducing photoperiod effect in begonia's seedlings at greenhouse has fundamental importance in the growth and development of these plants and directly reflects in the electrical energy consumption used in this production process. The objective of this research was to analyze the technical and economic feasibility of replacing the current technology of artificial lighting used by the producers (incandescent lamps), by the technology of discharge lamps with the purpose of inducing photoperiod in a greenhouse. The analysis results indicate that the discharge lamp of 32 W Tubular Fluorescent discharge lamp was the one that presented the lower peak demand and lower average energy consumption of 85.01% compared to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy efficiency; Artificial lighting; Rural energy; Photoperiod induction.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400005
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Analysis of Changes in Energy Consumption and Demand Trend in China’s Agricultural Production AgEcon
Zhu, Li-zhi; Liu, Jing; Xu, Ran; Xiang, Meng.
China’s energy consumption for agricultural production has relied on petroleum and coal with relatively low input from power and other types of energy for a long time. Projections indicate that as China’s existing development trend leads to substantial growth of energy demand for agricultural production, such a long term irrational energy consumption pattern would unlikely be able to meet the needs of the country’s developing agricultural sector. As such, it is recommended that China’s agricultural sector should follow the national energy development strategy guideline by gradually increasing the use of wind power, solar energy, biomass and other new energy sources while advancing technological innovations on traditional energy sources. Meanwhile, as the...
Tipo: Journal Article Palavras-chave: Rural energy; Energy structure; Consumption elasticity; Consumption projection; China; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/113410
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