Table 2. Alteration of thermal conditions during experimental period

Items	HS	AC	WC
Temperature (°C)
Means	30.72	26.87	28.81
Maximum	31.87	29.83	30.60
Minimum	29.02	24.19	27.19
SD	0.73	1.92	1.05
Relative humidity (%)
Means	78.91	78.95	80.03
Maximum	85.22	92.17	88.68
Minimum	70.24	68.59	73.15
SD	4.29	5.31	4.28
THI
Means	83.94	77.77	81.05
Maximum	86.40	82.08	84.17
Minimum	80.79	73.93	77.73
SD	1.45	2.95	1.86

HS, without any cooling; AC, air-cooling; WC, water-drip cooling; THI, temperature-humidity index.