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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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Textbook Question
Chapter 4, Problem 4.22P
Work Problem 4-21 assuming that the filter is a
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Students have asked these similar questions
A duct system layout is shown in the figure below, it is supplied with air from a
central air conditioning unit. The ducts require to be rectangular with a
maximum height of 10in due to ceiling limitations. Maximum air duct velocities
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rectangular ducts and the static pressure at the AHU. Use Velocity reduction
method.
AHU- AIR HANDLING UNIT (CENTRAL AIRCON)
page: 2/8
8. For hydraulic pumps and motors, there are two types of losses, i.e.
9. The measure for oil trapping of gear pumps is
10. Three basic conditions for operation of pumps are
and mechanism to
separate suction from delivery stroke.
11. For the axial piston pump, the pulsation is minimized when the
pump
has
12. In neutral position, the port P and T of relief valves are
(connected/disconnected).
13. The secondary air treatment unit of pneumatic systems include
and air lubricator.
QUESTION 3
The refrigeration plant onboard a fishing vessel maintain minus 20 °C in a fish storage hatch at a
design ambient air temperature of 33 °C. The plant which rejects condenser heat to sea water
at +22°C operates at evaporating and condensing temperatures of minus 20 °C and 30 °C
respectively. It is fitted with a 4- cylinder R134a compressor having a bore of 100 mm, stroke
150 mm and speed 1500 rpm. Given that the suction gas superheat is 10 °C, condensate sub
cooling is 10°C, volumetric efficiency of compressor is 80 % and discharge gas temperature
65°C, determine the following:
(a) Power consumption.
(b) Isentropic efficiency.
(c) Cooling capacity.
(d) Carnot efficiency of the plant.
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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