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Engenharia Agrícola

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DAVID, Eduardo; ROSSI, Luiz Antonio  and  PAGLIARDI, Odail. Technical and economic analysis of replacing artificial lighting system to induction of photoperiod effect in begonia's seedlings in greenhouse . Eng. Agríc. [online]. 2012, vol.32, n.4, pp.663-668. ISSN 0100-6916.

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 incandescent filament lamp of 100 W that is the technology of bigger consumption and currently used by the producer.

Keywords : energy efficiency; artificial lighting; rural energy; photoperiod induction.

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