Vol. 10, Special Issue 10 (2021)
Assessment of environmental heat in naturally ventilated polyhouse
Surendra, SS Meena, NL Panwar and BL Salvi
The research experiments were performed in naturally ventilated polyhouse at Agriculture Farm, CTAE, Udaipur. Environmental heat assessment was done for months of March, April, July and August. Polyhouse was having area of 1000 m2 in which chilly and tomato crops were under production. To assess environmental heat in poly-house quest temperature which is 36, for measurement heat stress monitor was used. The average relative humidity in polyhouse was recorded in the range of 37 to 84 per cent for a day. The air velocity recorded in polyhouse was in the range of 0.2 to 0.4 m/sec. In March maximum WBGT was 33.2 ºC and minimum WBGT was 23.4 ºC. In the month of April maximum value of WBGT was 34.7 ºC and minimum value of the WBGT was recorded 23.7 ºC. In the July maximum WBGT was recorded for a day was 36.8 oC at and minimum WBGT recorded was 27.6 ºC. It was recorded that maximum WBGT was 36.8 oC at and minimum WBGT recorded was 27.9 ºC. Increase in working heart rate was observed more than resting heart rate with increase in WBGT. This indicated that there was more heat load at the time of working with increase in WBGT. Use of protective gears decreased rise in forehead temperature in case of hat with air circulation and hand guard combination significant decrease in forehead temperature was observed because of air blown by fan used in the hat gave condensation effect to sweat and the combination was found superior to others in polyhouse.
How to cite this article:
Surendra, SS Meena, NL Panwar and BL Salvi. Assessment of environmental heat in naturally ventilated polyhouse. The Pharma Innovation Journal. 2021; 10(10S): 405-409.