Heating Ventilating and Air Conditioning: Analysis and Design
6th Edition
ISBN: 9780471470151
Author: Faye C. McQuiston, Jeffrey D. Spitler, Jerald D. Parker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 4, Problem 4.25P
Work Problem 4-24 but replace the 100 percent outdoor air requirement with 25 percent outdoor air and use high-performance filters for the return air. Gravimetric efflciency must be at least 99 percent in the
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* It required to design a ducting system to condition the building shown in figure (1). The
uantity of outdoor is (20%) of supply air. Using information in table, find
1- The sensible and latent load for cooling coil.
2- The quantity and condition of supply air to each place.
3- By using equal pressure drop method, design the rectangular ducting system with
maximum height side (600mm).
4- Illustrate the all process on psychometric chart.
Outdoor
45 °C db & 30% RH
Out let type
Celling
conditioning
indoor conditioning 24 °C db & 50% RH
diffuser
Number of diffuser
2 for each
place
15 kpa
10 kpa
15 kpa
By pass factor
Apparatus dew point 9°C
Ap losses diffuser
Ap losses filter
Ap losses coil
0.15
R/w
1.5
бm
бm
бm
Room (1)
Room (2)
RSH=6KW
Room (3)
4m
RSH=8KW
RSH=8KW
RLH=2KW
RLH=1KW
RLH=2KW
2m
AHU
Mechanical
Room (4)
RSH=20KW
4m
Room
RLH=3KW
4m
14m
ANSWER this, please.With the formula derived and the conditions applied in problem statement # 1, calculate for the heavier liquidoverflow leg, the diameter, and the volume of the tank in separating liquid B from liquid A having densities of 1278kg/m3 and 794 kg/m3, respectively. The volumetric flow rate of the mixture entering the tank is 30 m3/hr and the viscosity of the lighter liquid (continuous phase) is the same as the viscosity of water @ 35oC. Volume of heavier liquid is twice the volume of the lighter liquid and having a tank diameter to height as 1:2 ratio. Assume for 10% from the tank volume allotted for the vapor space having a pressure of 50 kPa.
REFERENCE: (problem 1) Derive a formula to calculate for the height, ZC of the heavier liquid overflow leg in a continuous vertical cylindrical decanter. The pressure at the discharge point of the heavier liquid is given as 90% of the pressure on top of the fluid mixture. Express the height of the heavier liquid as ZB and the…
* It required to design a ducting system to condition the building shown in figure (1). The
uantity of outdoor is (20%) of supply air. Using information in table, find
1- The sensible and latent load for cooling coil.
2- The quantity and condition of supply air to each place.
3- By using equal pressure drop method, design the rectangular ducting system with
maximum height side (600mm).
4- Illustrate the all process on psychometric chart.
Outdoor
45 °C db & 30% RH
Out let type
Celling
conditioning
indoor conditioning 24 °C db & 50% RH
diffuser
Number of diffuser
2 for each
place
15 kpa
10 kpa
15 kpa
By pass factor
Apparatus dew point 9°C
Ap losses diffuser
Ap losses filter
Ap losses coil
0.15
R/w
1.5
6m
6m
6m
Room (1)
Room (2)
Room (3)
4m
RSH=8KW
RSH=6KW
RSH=8KW
RLH=2KW
RLH=1KW
RLH=2KW
2m
AHU
Mechanical
Room (4)
RSH=20KW
4m
Room
RLH=3KW
4m
14m
Chapter 4 Solutions
Heating Ventilating and Air Conditioning: Analysis and Design
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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