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Publication datasheet
Title:
Temperature conditioning in ornamental plant production with a prototype device: root zone cooling in protected environments
Authors:
Burchi, G.; Cacini, S.; Fedrizzi, M.; Pagano, M.; Guerrieri, M.
Year:
2013
Languages:
ENG, eng
Journal:
Journal of Agricultural Engineering
Kind of publication:
Cartaceo
Location:
Pavia
Editor:
PAGEpress
Abstract in Italian:
Abstract in English:
One of the greatest growing costs in greenhouse floriculture is for energy. To reduce energy costs for thermal conditioning was projected an innovative root zone cooling system characterized by two coaxial pipes with hydraulic countercurrent flows. This new system was com- pared with a traditional system with hydraulic flows cocurrent. The plants were equipped with coolers for obtaining flowering in the sum- mer period by a culture of Alstroemeria spp and were measured energy consumption in each root zone cooling system. The tests also focused on a particular change, made during the tests of previous years, which allows the coaxial system in turning his operation from countercur- rent flows to cocurrent flows. The results obtained show that the root zone coaxial cooling system allows to obtain, in comparison to the tra- ditional type, a better temperature uniformity of the root zone ground, both when it is used with countercurrent flows both when it is used with cocurrent flow. The system also allows a slight overall reduction in energy consumption.

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