AGRIVITA, Journal of Agricultural Science
Vol 42, No 2 (2020)

Modeling Air Temperature Inside an Organic Vegetable Greenhouse

Vita Ayu Kusuma Dewi (Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, IPB University, Bogor, West Java, Indonesia)
Budi Indra Setiawan (Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, IPB University, Bogor, West Java, Indonesia)
Budiman Minasny (Department of Civil and Environmental Engineering, Faculty of Agricultural Technology, IPB University, Bogor, West Java, Indonesia)
Liyantono Liyantono (Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, IPB University, Bogor, West Java, Indonesia)
Roh Santoso Budi Waspodo (Department of Agricultural Engineering and Biosystem, Faculty of Agricultural Technology, IPB University, Bogor, West Java, Indonesia)



Article Info

Publish Date
02 Jun 2020

Abstract

Air temperature is an important microclimate parameter in a greenhouse as it influences root growth and controls plant growth and development. Thus, the precise monitor and model temperature under greenhouse is needed to maintain the plants in optimal conditions. This research aims to model the temperature under a greenhouse using energy balance model. The study monitored the temperature inside and outside the greenhouse in a humid tropical environment. Based on the data, heat exchange constants of greenhouse components were derived, they were: 0.0029 (solar radiation), 0.8 (air) and 0.01 (heat exchange from greenhouse component). The calibrated model enables the calculation of temperature inside a greenhouse based on its outside air temperature, wind speed, and solar radiation. Testing the model against an independent time series showed the high accuracy of the model with an R2 value of 0.99, RMSE = 0.0085 and model efficiency Ef = 0.99. Based on the results, most advantageous strategies for air temperature control inside the greenhouse include the control of air ventilation.

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Journal Info

Abbrev

AGRIVITA

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

AGRIVITA Journal of Agricultural Science is a peer-reviewed, scientific journal published by Faculty of Agriculture Universitas Brawijaya Indonesia in collaboration with Indonesian Agronomy Association (PERAGI). The aims of the journal are to publish and disseminate high quality, original research ...