Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 35, Problem 14RQ
If the fresh-air requirements for the house in question 13 were to be 0.4 air changes per hour, how much fresh air must be taken in per minute?
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Students have asked these similar questions
An open pot of water is heated on the stove top. Which of the following statements best describes the temperature of the water?
A) The temperature of the water will continually increase as heat from the burner is applied.
B) The temperature of the water will increase until the water becomes a superheated vapor.
C) The temperature of the water will increase until the water becomes a compressed liquid.
The temperature of the water will increase only to the saturation temperature.
4. Relative Humidity calculations (use the Water vapor Pressures and Contents scale)!
The actual water content (absolute humidity) of a sample of room air is measured and is
°C, what is the relative
found to be
If the room temperature is
humidity?
Use examples below to fill in the blanks above:
a. Absolute humidity is 11.91 mg/L; Temperature is at 24 °C
b. Absolute humidity is 13.89 mg/L; Temperature is at 30°C
c. Absolute humidity is 10.01 mg/L; Temperature is at 60 °F
For the following table, fill in the missing values. Tparcel refers to the temperature of a single
parcel being lifted from 0 – 5 km, whereas Tenvironment represents the environmental lapse rate. "e"
is the yapour pressure and "es" is the saturation yapour pressure.
The figure relating saturation yapour pressure and temperature can be found below. The dry
adiabatic lapse rate is 10° C/km and the moist adiabatic lapse rate is constant and 6° C/km.
Height
Tenviornment
Tparcel
е (parcel)
es (parcel)
RH
0 km
20 ° C
20 ° C
6.0 mb
24 mb
1 km
12 ° C
10 ° C
50 %
2 km
4° C
6 mb
3 km
-4 ° C
3 mb
4 km
-12 ° C
-12 ° C
2.5 mb
5 km
-20 ° C
1.5 mb
100 %
Chapter 35 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 35 - Name the four comfort factors.Ch. 35 - State three ways the body gives off heat.Ch. 35 - Lower room temperatures can be offset in winter by...Ch. 35 - Perspiration cools the body by________.Ch. 35 - Relative humidity is measured using a A....Ch. 35 - Name the two unknowns that are easiest to obtain...Ch. 35 - Air that contains all of the moisture that it can...Ch. 35 - In order for an air-conditioning coil to remove...Ch. 35 - For a room to be comfortable, the following...Ch. 35 - With a dry-bulb reading of 70F and a wet-bulb...
Ch. 35 - Relative humidity in question 10 is _______%.Ch. 35 - A gas furnace has an output of 60,000 Btu/h. The...Ch. 35 - A house has 3500ft2 of floor space and a 9-ft...Ch. 35 - If the fresh-air requirements for the house in...Ch. 35 - If the outside fresh-air conditions were to be 93F...Ch. 35 - If the air leaving the cooling coil were to be 55F...Ch. 35 - Using the answers from questions 14, 15, and 16,...Ch. 35 - Describe why fresh air is important in a house.
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