TY - JOUR
T1 - Spatiotemporal investigation of evaporative cooling options for greenhouse air-conditioning application in Pakistan
AU - Noor, Shazia
AU - Ashraf, Hadeed
AU - Hussain, Ghulam
AU - Sultan, Muhammad
AU - Miyazaki, Takahiko
AU - Shakoor, Aamir
AU - Mahmood, Muhammad H.
AU - Riaz, Mahmood
N1 - Funding Information:
All this work is part of the Ph.D. research of Shazia Noor (1st Author). This research work has been carried out in the Department of Agricultural Engineering, Bahauddin Zakariya University, Multan-Pakistan. This research was funded by Bahauddin Zakariya University, Multan-Pakistan under the Director Research/ORIC grant entitled "Development and performance evaluation of prototypes of direct and indirect evaporative cooling-based air conditioning systems" awarded to Principal Investigator Muhammad Sultan.
Publisher Copyright:
© 2021 Parlar Scientific Publications. All rights reserved.
PY - 2021/3
Y1 - 2021/3
N2 - This study explores evaporative cooling options for greenhouse air-conditioning for the climatic conditions of Multan (Pakistan). Greenhouse requires temperature and humidity control unit to optimize the environment inside the greenhouse for plants. In this regard, three low-cost lab-scale experimental evaporative cooling (EC) systems (i.e. direct EC (DEC), indirect EC (IEC), and Maisotsenko cycle EC (MEC)) were developed. The thermodynamic performance of the developed systems was analyzed from the viewpoints of the temperature gradient, relative humidity, vapor pressure deficit, and wet bulb, and dew point effectiveness. The MEC, DEC, and IEC systems created a temperature gradient of 18-21°C, 20-28°C, 27-31°C at ambient temperature 28-40°C for 15th May for the climatic conditions of Multan. The spatiotemporal evaluation of temperature, relative humidity, and vapor pressure deficit (VPD) revealed that plain areas of Pakistan including Punjab province received severe temperature peaks. Whereas relative humidity peaked in monsoon season across the plain areas. Whereas for VPD, plain areas of Pakistan faced severe peaks in the summer months which can be optimized using the MEC system for greenhouse air-conditioning. Thus, the results conclude the MEC system as an optimum air-conditioning option for greenhouse air-conditioning.
AB - This study explores evaporative cooling options for greenhouse air-conditioning for the climatic conditions of Multan (Pakistan). Greenhouse requires temperature and humidity control unit to optimize the environment inside the greenhouse for plants. In this regard, three low-cost lab-scale experimental evaporative cooling (EC) systems (i.e. direct EC (DEC), indirect EC (IEC), and Maisotsenko cycle EC (MEC)) were developed. The thermodynamic performance of the developed systems was analyzed from the viewpoints of the temperature gradient, relative humidity, vapor pressure deficit, and wet bulb, and dew point effectiveness. The MEC, DEC, and IEC systems created a temperature gradient of 18-21°C, 20-28°C, 27-31°C at ambient temperature 28-40°C for 15th May for the climatic conditions of Multan. The spatiotemporal evaluation of temperature, relative humidity, and vapor pressure deficit (VPD) revealed that plain areas of Pakistan including Punjab province received severe temperature peaks. Whereas relative humidity peaked in monsoon season across the plain areas. Whereas for VPD, plain areas of Pakistan faced severe peaks in the summer months which can be optimized using the MEC system for greenhouse air-conditioning. Thus, the results conclude the MEC system as an optimum air-conditioning option for greenhouse air-conditioning.
UR - http://www.scopus.com/inward/record.url?scp=85105558328&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85105558328&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85105558328
SN - 1018-4619
VL - 30
SP - 2858
EP - 2870
JO - Fresenius Environmental Bulletin
JF - Fresenius Environmental Bulletin
IS - 3
ER -