A New Type of Air Conditioning System Based on Finned Ceiling Radiant Coupled with Independent Fresh Air and Its Thermal Comfort Experimental Study

Table 6

Indoor thermal comfort index test results.

Air conditioner operating mode	PMV-PPD value	General refrigeration (28°C∼30°C)	High-temperature refrigeration (37°C∼39°C)	Common heating (11°C∼15°C)	Low-temperature heating (−5°C∼−1°C)
Radiation	PMV	0.25	0.54	−0.34	−0.45
	PPD	5.59	7.17	5.87	6.21
Fresh air	PMV	0.22	0.49	−0.27	-0.4
	PPD	5.41	6.91	5.61	5.94
Radiation and fresh air at the same time	PMV	0.13	0.47	−0.23	−0.38
	PPD	5.2	6.82	5.39	5.75