Factors affecting energy consumption and productivity in greenhouses

Keywords: temperature, environment evapotranspiration, relative humidity, fuzzy neural network

Abstract

Aim of study: To investigate the impact factors affecting the greenhouse environment on energy consumption and productivity.

Area of study: Alborz province of Iran during the period 2018–2020.

Material and methods: In this study, 18 active units of greenhouse owners in Alborz province of Iran that had necessary standards were identified. Then, upper and lower amplitudes of the variables affecting productivity and energy consumption in greenhouses were calculated using a type-2 fuzzy neural network, Matlab 2017 software. Area, temperature, energy exchange, environmental evapotranspiration and relative humidity were studied as indicators.

Main results: With each unit of temperature, energy consumption and productivity increased by 0.737% and 0.741%, respectively; with each unit of energy exchange, they increased by 0.813% and 0.696%, respectively; with each unit of evaporation and transpiration of the environment, they increased by 0.593% and 0.869%, respectively; and with each unit of humidity, they increased by 0.398% and 0.509%, respectively.

Research highlights: The factors affecting the greenhouse environment such as area, temperature, evapotranspiration and relative humidity had a significant effect on productivity in studying greenhouses and therefore increasing their productivity. According to the results, the model’s ability in energy consumption was better than that for energy efficiency prediction. Also, greenhouse ranking was done by FAHP method.

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Published
2021-09-27
How to Cite
Younesi-AlamoutiM., KhafajehH., & ZareinM. (2021). Factors affecting energy consumption and productivity in greenhouses. Spanish Journal of Agricultural Research, 19(4), e0209. https://doi.org/10.5424/sjar/2021194-16865
Section
Agricultural engineering