AN ESTIMATION METHOD FOR GREENHOUSE TEMPERATURE UNDER THE INFLUENCE OF EVAPORATIVE COOLING SYSTEM

Mohammad Hossein SHOJAEİ; Hamid MORTEZAPOUR; Kazem JAFARİNAEİMİ; Mohammad Mehdi MAHARLOOEİ

doi:https://doi.org/10.18186/thermal.930907

Makale detayları

AN ESTIMATION METHOD FOR GREENHOUSE TEMPERATURE UNDER THE INFLUENCE OF EVAPORATIVE COOLING SYSTEM

Yazarlar:

Mohammad Hossein SHOJAEİ | Hamid MORTEZAPOUR | Kazem JAFARİNAEİMİ | Mohammad Mehdi MAHARLOOEİ

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Journal of Thermal Engineering 2021 Vol.7 Issue 4, pp.918-933

Belge Tipi:

Makale

Yayın Tarihi:

4/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000505167

Sıklık:

İki Aylık

eISSN:

2148-7847

DOI:

https://doi.org/10.18186/thermal.930907

Özet:

 

Temperature is one of the most important plant growth parameters that should be controlled in the
greenhouses. The present study was aimed to assess the thermal behavior of a greenhouse with and without the fan and
pad (FP) evaporative cooling system. A method was developed to approximate the greenhouse temperature based on
the mass and energy balance equations. For this purpose, both of the fan and pad evaporative cooling system, and the
greenhouse were studied. The results of the theoretical analysis were compared with those achieved by the experiments.
Maximum deviations of 5.32, 5.56 and 4.53oC were observed between the theoretical and experimental temperatures
of the inside air, the floor and the cover of the greenhouse without the cooling system, respectively. Whereas, the mean
absolute error values associated with the predicted temperatures of the greenhouse with the FP system were ranged
between 1.50 and 25.67%. Based on the obtained values for the correlation coefficient, root mean square error and
mean absolute magnitude error, it was concluded that the models satisfactorily predicted the temperature of the
greenhouse components. An air circulation system inside the greenhouse can be proposed to maintain the lumped
condition even at the high temperatures, and lead to smaller errors. The results indicated that the inside air, the floor
and the cover temperature of the greenhouse reduced by respectively 20.6, 13.0 and 20.6 oC when using the FP system
with the air velocity of 4.4 ms-1 and the pad thickness of 6 cm.

Makale detayları

AN ESTIMATION METHOD FOR GREENHOUSE TEMPERATURE UNDER THE INFLUENCE OF EVAPORATIVE COOLING SYSTEM

Yazarlar: Mohammad Hossein SHOJAEİ | Hamid MORTEZAPOUR | Kazem JAFARİNAEİMİ | Mohammad Mehdi MAHARLOOEİ

Yayıncı: Yildiz Technical University

Ana Başlıklar: Uygulamalı fizik

Dergi: Journal of Thermal Engineering 2021 Vol.7 Issue 4, pp.918-933

Belge Tipi: Makale

Yayın Tarihi: 4/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000505167

Sıklık: İki Aylık

eISSN: 2148-7847

DOI: https://doi.org/10.18186/thermal.930907

Sayı

Yazarlar:

Mohammad Hossein SHOJAEİ | Hamid MORTEZAPOUR | Kazem JAFARİNAEİMİ | Mohammad Mehdi MAHARLOOEİ

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Journal of Thermal Engineering 2021 Vol.7 Issue 4, pp.918-933

Belge Tipi:

Makale

Yayın Tarihi:

4/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000505167

Sıklık:

İki Aylık

eISSN:

2148-7847

DOI:

https://doi.org/10.18186/thermal.930907