HEATING, VENTILATING,+AC ANAL...EBOOK>I<
6th Edition
ISBN: 2819480255750
Author: Mcquiston
Publisher: INTER WILE
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Chapter 4, Problem 4.22P
Work Problem 4-21 assuming that the filter is a
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8. For hydraulic pumps and motors, there are two types of losses, i.e.
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pump
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A washing machine is supplied with hot and cold water from two different supplies. Draw the bock the diagram of a process control that controls the hot water flow Q? and the cold water flow Q? to adjust the water temperature as the machine user specify? and define each block? Note: pressure controlled pneumatic actuator
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Problem Statement
Water at 60°F and one atmosphere is being transferred from
tank 1 to tank 2 with a 2-hp pump that is 75% efficient, as
shown in Figure 8-7. All the piping is 4-inch schedule 40
steel pipe except for the last section, which is 2-inch
schedule 40 steel pipe. All elbows are 4-inch diameter, and a
reducer is used to connect to the 2-inch pipe. The change in
elevation between points 1 and 2 is z2 - z1 = 60 ft.
Tank 1
6 ft
4-inch
15 ft
4-inch
300 ft
4-inch
150 ft
4-inch
Pump
Tank 2
= 90° Elbow
= Reducer
All piping is
schedule 40 steel
with diameters given.
Figure 8-7 Pipe and Pump Network
Calculate the expected flowrate in gal/min when all frictional losses are cor
Repeat part (a) but only consider the frictional losses in the straight pipe
a. Calculate the expected flow rate in gal/min when all
frictional losses are considered.
b. Repeat part (a) but only consider the frictional
losses in the straight pipes.
c. What is the % error in flow rate for part (b) relative to
part…
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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