Using Fig. 4-1, Draw a conclusion about the comfort of mixed group of men and women in typical seasonal clotthing, with sedentary activity for the following cases: (a) Summer, Operative temperature 24 °C, wb 18 °C. It is OComfortable OToo warm OToo Dry (b) Winter, Operative temperature 24 °C, wb 18 °C. It is OToo warm OComfortable OToo Dry (c) Summer, Operative temperature 23 °C, dp 10 °C. It is OComfortable OToo warm OToo Dry (d) Winter, Operative temperature 22 °C, dp 1 °C. It is OToo Dry OComfortable OToo warm wa ma 15 55 of 30 st 68°F (20°C) 70 80 25 Operative temperature 20 50% 36% 79°F (26°C) 40.015 30 C 0.010 0.005 Joo 90 F Pumidity ratio Figure 4-1 Acceptable ranges of operative temperature and humidity for people in typical sum mer and winter clothing during light and primarily sedentary activity (5 1.2 met) (Reprinted by permission from ASHRAE Standard 55-1992)
Using Fig. 4-1, Draw a conclusion about the comfort of mixed group of men and women in typical seasonal clotthing, with sedentary activity for the following cases: (a) Summer, Operative temperature 24 °C, wb 18 °C. It is OComfortable OToo warm OToo Dry (b) Winter, Operative temperature 24 °C, wb 18 °C. It is OToo warm OComfortable OToo Dry (c) Summer, Operative temperature 23 °C, dp 10 °C. It is OComfortable OToo warm OToo Dry (d) Winter, Operative temperature 22 °C, dp 1 °C. It is OToo Dry OComfortable OToo warm wa ma 15 55 of 30 st 68°F (20°C) 70 80 25 Operative temperature 20 50% 36% 79°F (26°C) 40.015 30 C 0.010 0.005 Joo 90 F Pumidity ratio Figure 4-1 Acceptable ranges of operative temperature and humidity for people in typical sum mer and winter clothing during light and primarily sedentary activity (5 1.2 met) (Reprinted by permission from ASHRAE Standard 55-1992)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.23P: Using the information in Problem 1.22, estimate the ambient air temperature that could cause...
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Transcribed Image Text:Using Fig. 4-1, Draw a conclusion about the comfort of mixed group of
men and women in typical seasonal clotthing, with sedentary activity
for the following cases:
(a) Summer, Operative temperature 24 °C, wb 18 °C.
It is
OComfortable
OToo warm
OToo Dry
(b) Winter, Operative temperature 24 °C, wb 18 °C.
It is
OToo warm
OComfortable
OToo Dry
(c) Summer, Operative temperature 23 °C, dp 10 °C.
It is
OComfortable
OToo warm
OToo Dry
(d) Winter, Operative temperature 22 °C, dp 1 °C.
It is
OToo Dry
OComfortable
OToo warm
Dew point
15
55
&1050
45
540
O
35
30
60
100%
RH
68°F
(20°C)
70
80
20
25
Operative temperature
50%
36%
79°F
(26°C)
40.015
30 C
0.010
0.005
Joo
90 F
Pumidity ratio
Figure 4-1 Acceptable ranges of operative temperature and humidity for people in typical sam
mer and winter clothing during light and primarily sedentary activity (5 1.2 met). (Reprinted by
permission from ASHRAE Standard 55-1992)
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