HEATING, VENTILATING,+AC ANAL...EBOOK>I<
6th Edition
ISBN: 2819480255750
Author: Mcquiston
Publisher: INTER WILE
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Textbook Question
Chapter 4, Problem 4.2P
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 24 C, wb 18 C
b. Winter, operative temperature 24 C, wb 18 C
c. Summer, operative temperature 23 C, dp 10 C
d. Winter, operative temperature 22 C, dp 1 C
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Students have asked these similar questions
Air movement in a room is 0.4 m/s and light clothing (0.5 clo) is being worn by the occupants. If the activity level is
considered as 2.5 met, what is the operative temperature? Hint: Use Figure 4-3b to obtain To and then convert from
Celcius to Fahrenhite.
O a. 73.4°F
Ob. 76.1°F
OC. 66.2°F
Od. 69.0°F
O e. 80.4°F
1- Select the optimum choice for: high speed air craft skins material.
Table 1: The properties of metallic materials
E, GPa Max. use lemp, 'C | Density, Mg/cm' ay, MPa | Relative cost per
unit sheet area
Material
2.8
300
2
Aluminum alloy
200
69
200
7,8
350
350
700
Carbon steel
Stainless steel
193
7.8
650
6
8.9
600
6
Nickel alloy
Titanium alloy
207
1000
116
600
4.5
900
10
Table 2: Weighting factor
Specific yield strength:
Max, use temperature:
Youngs modulus:
4
2
The Room comfort condition in Malaysian Standard MS1525:2014 are to dependent
on various factors including air temperature, mean radiant temperature, humidity,
clothing insulation, metabolic rate and air movement preference of the occupant.
Explain details about room comfort condition should consider the following three main
factors:
i. Dry bulb temperature;
ii. Relative humidity; and
iii. Air movement (air velocity).
Chapter 4 Solutions
HEATING, VENTILATING,+AC ANAL...EBOOK>I<
Ch. 4 - Using Fig. 4-1, draw a conclusion about the...Ch. 4 - Using Fig. 4-1, draw a conclusion about the...Ch. 4 - Select comfortable summer design conditions (dry...Ch. 4 - It is desired to use a space as a large classroom...Ch. 4 - An indoor tennis facility finds that it has...Ch. 4 - Work Problem 4-5 for an average air speed at court...Ch. 4 - In an occupied space the mean air velocity is...Ch. 4 - An occupied space is being held at 76 F (24 C) and...Ch. 4 - What do you think is the best thermostat setting...Ch. 4 - With the air conditioning running and the...
Ch. 4 - Discuss how an emergency government mandate to set...Ch. 4 - In the heating seasons the heat loss from a...Ch. 4 - Air motion can be good or bad, depending on the...Ch. 4 - To save energy in large, chilled water systems,...Ch. 4 - Overhead fans (Casablanca fans) are often reversed...Ch. 4 - A school classroom is designed for 30 people. (a)...Ch. 4 - Carbon dioxide is being generated in an occupied...Ch. 4 - Each person in a room is assumed to be producing...Ch. 4 - An air-handling system must handle 2000 cfm with a...Ch. 4 - Prob. 4.20PCh. 4 - How many filter modules will be required using the...Ch. 4 - Work Problem 4-21 assuming that the filter is a...Ch. 4 - The M-200, 0.60.60.2 filters of Table 4-3 are to...Ch. 4 - Investigate the feasibility of using 100 percent...Ch. 4 - Work Problem 4-24 but replace the 100 percent...Ch. 4 - Using M-15 filter media and the requirement of 60...Ch. 4 - A filter system is available that will filter out...Ch. 4 - A maximum of 10 smokers are anticipated in a smong...Ch. 4 - Solve Ex. 4-4 assuming that the filter is in...Ch. 4 - Solve Problem 4-28 assuming that the filter is in...Ch. 4 - Fora 3000-ft3 combination and exercise operation,...Ch. 4 - A classroom with a capacity of 225 people is...
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