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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Textbook Question
Chapter 35, Problem 9RQ
For a room to be comfortable, the following conditions are considered average:
____°F dry-bulb and ______% relative humidity.
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A psychrometer has a dry-bulb reading of 95°F and a wet-bulb reading of 75°F. Find each of the following measurements. (Use the data in this table as necessary.)
(a) relative humidity _____%(b) dew point_____°F(c) maximum moisture capacity of the air______gr/ft3(d) actual moisture content of the air______gr/ft3
As the Airstream is cooled, the relative humidity _____ and specific volume _____.
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If the sling psychrometer read 34 degree dry bulb temperature & 28 degree wet bulb temperature determine the following using the psychrometric chart.
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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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- As the Airstream is cooled and dehumidified, the relative humidity____ and the absolute humidity___ A. Increases , Increases B. Decreases, Decreases C. Increases, decreases D. Decreases, Increasesarrow_forwardAt what evaporator temperature does an ice maker usually begin to make ice? A. 35F B. 32F C. 25F D. 20Farrow_forwardNeed correct answer otherwise skip to other expertarrow_forward
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