E3S Web Conf.
Volume 187, 2020The 13th Thai Society of Agricultural Engineering International Conference (TSAE 2020)
|Number of page(s)||9|
|Section||Energy and Environment|
|Published online||08 September 2020|
Empirical modelling of temperature in fogging greenhouse
1 Suranaree University of Technology, Institute of Engineering, School of Mechanical Engineering, 30000, Thailand
2 Suranaree University of Technology, Institute of Engineering, School of Agricultural Engineering, 30000, Thailand
* Corresponding author: firstname.lastname@example.org
The objective of this article is to evaluate the inside temperature of greenhouse and efficiency of fogging system under the influence of solar power. A 50% off sun shading roof was selected to test in this study. Testing is divided to 2 cases. Case I Measuring all of parameters without operate the fogging system and ventilation between 9.00 a.m. to 5.00 p.m. (Thailand’s time zone). Case II Measuring all of parameters with a fogging system that was controlled the relative humidity below 80% all day. The results show that the highest temperature in greenhouse is 50.13oC (no fogging and ventilation). the developed empirical model has an error 6.33% between numerical results and measured air temperature. In case of neglected solar power, the model showed that the fogging system can reduce the temperature in greenhouse in range of 7.05°C (18.44%) and the efficiency of fogging system is quite high (value is 57.36%). The important factor that influents on the air temperature in greenhouse is solar power. If we need to control the atmosphere in greenhouse by fogging system than the reduction of solar power is the most important controlling factor.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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