Using Fig. 4-1, draw a conclusion about the comfort of a mixed group of men and women in typical seasonal clothing, with sedentary activity for the following cases: a. Summer, operative temperature 77 F, wb 64 F b. Winter, operative temperature. 77 F, wb 64 F c. Summer, operative temperature 75 F, dp 50 F d. Winter, operative temperature 73 F, dp 34 F

Question

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Answer 1

Textbook Question

Chapter 4, Problem 4.1P

Using Fig. 4-1, draw a conclusion about the comfort of a mixed group of men and women in typical seasonal clothing, with sedentary activity for the following cases:

a. Summer, operative temperature 77 F, wb 64 F

b. Winter, operative temperature. 77 F, wb 64 F

c. Summer, operative temperature 75 F, dp 50 F

d. Winter, operative temperature 73 F, dp 34 F

(a)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

(b)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

(c)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

(d)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.

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Answer 2

Textbook Question

Chapter 4, Problem 4.1P

Using Fig. 4-1, draw a conclusion about the comfort of a mixed group of men and women in typical seasonal clothing, with sedentary activity for the following cases:

a. Summer, operative temperature 77 F, wb 64 F

b. Winter, operative temperature. 77 F, wb 64 F

c. Summer, operative temperature 75 F, dp 50 F

d. Winter, operative temperature 73 F, dp 34 F

(a)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

(b)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

(c)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

(d)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.

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Answer 3

Textbook Question

Chapter 4, Problem 4.1P

Using Fig. 4-1, draw a conclusion about the comfort of a mixed group of men and women in typical seasonal clothing, with sedentary activity for the following cases:

a. Summer, operative temperature 77 F, wb 64 F

b. Winter, operative temperature. 77 F, wb 64 F

c. Summer, operative temperature 75 F, dp 50 F

d. Winter, operative temperature 73 F, dp 34 F

(a)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

(b)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

(c)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

(d)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 4, Problem 4.1P

Using Fig. 4-1, draw a conclusion about the comfort of a mixed group of men and women in typical seasonal clothing, with sedentary activity for the following cases:

a. Summer, operative temperature 77 F, wb 64 F

b. Winter, operative temperature. 77 F, wb 64 F

c. Summer, operative temperature 75 F, dp 50 F

d. Winter, operative temperature 73 F, dp 34 F

(a)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

(b)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

(c)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

(d)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

(a)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

(b)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

(c)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

(d)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.

Answer 8

(a)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

Answer 9

(a)

Expert Solution

Answer 10

(a)

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer 13

Answer to Problem 4.1P

According to given condition, the group will feel comfortable.

Answer 14

Explanation of Solution

Given:

The operating temperature of summer is 77 F .

The wet bulb temperature of summer is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% .

Answer 15

(b)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

Answer 16

(b)

Expert Solution

Answer 17

(b)

Expert Solution

Answer 18

Expert Solution

Answer 19

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer 20

Answer to Problem 4.1P

According to given condition, the group will not feel comfortable.

Answer 21

Explanation of Solution

Given:

The operative temperature of winter is 77 F .

The wet bulb temperature of winter is 64 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 77 F and wet bulb temperature is 64 F on winter the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 60% due to this the temperature is maintained in this season.

Answer 22

(c)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

Answer 23

(c)

Expert Solution

Answer 24

(c)

Expert Solution

Answer 25

Expert Solution

Answer 26

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer 27

Answer to Problem 4.1P

According to given condition, the group will feel comfortable

Answer 28

Explanation of Solution

Given:

The operative temperature of summer is 75 F .

The dew temperature of summer is 50 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 75 F and wet bulb temperature is 50 F on summer the mixed group of men and women will feel comfortable during this season because at this operating temperature the relative humidity reaches to 40% so that the temperature is maintained in this summer season.

Answer 29

(d)

Expert Solution

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.

Answer 30

(d)

Expert Solution

Answer 31

(d)

Expert Solution

Answer 32

Expert Solution

Answer 33

To determine

The comfort of mixed group of men and women in typical seasonal clothing.

Answer 34

Answer to Problem 4.1P

According to given condition, the group will feel uncomfortable.

Answer 35

Explanation of Solution

Given:

The operative temperature of winter is 73 F .

The dew temperature of winter is 34 F .

Calculation:

From fig4-1,

According to ASHRAE standard, the acceptable range of operating temperature is 73 F and wet bulb temperature is 34 F on winter the mixed group of men and women will feel uncomfortable during this season because at this operating temperature the relative humidity decrease to 30% due to this the temperature produce more heat in this winter season.