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 36, Problem 17RQ
The dew point temperature tells you how much ________is in the air.
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The effect of _____ wind speeds generally increase with height above the ground.
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b. rises, sinks
c. sinks, rises
d. freezes, melts
Chapter 36 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 36 - True or False: Evaporative air-conditioning will...Ch. 36 - What are the advantages of using refrigerated...Ch. 36 - The four major components of an air-conditioning...Ch. 36 - Most compressors are cooled using the ___________.Ch. 36 - What advantage does a thermostatic expansion valve...Ch. 36 - What advantage does a capillary tube have over a...Ch. 36 - The ______expansion device ordinarily must use...Ch. 36 - The most popular refrigerant used in the past for...Ch. 36 - What are higher-efficiency refrigerant blends that...Ch. 36 - What refrigerant blend can be used in retrofit...
Ch. 36 - What types of heat are removed by the evaporator...Ch. 36 - The design boiling point for most evaporator coils...Ch. 36 - What are the three most common types of...Ch. 36 - The large interconnecting line between the indoor...Ch. 36 - The small interconnecting line between the indoor...Ch. 36 - The outside design temperatures in the summerin...Ch. 36 - The dew point temperature tells you how much...
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- At what evaporator temperature does an ice maker usually begin to make ice? A. 35F B. 32F C. 25F D. 20Farrow_forwardHumidification is a process which involves . water vapor per Kilogram of dry air Select one: a. Cooling b. Increasing c. Reducing d. Heatingarrow_forwardThe ___________ is whatever we want to study it may be simple as a free body as complex as an entire chemical relinery A. Heat B. Temperature C. System D. Voltage E. Thermodynamics 2. It states the ratio between the pressure-Volume product and absolute temperature of gas is a constant A. Charles Law B. Combined Gas Law C. Avogadros Law D. Boyles Law 3.The wood ________ refers to the condition of a system as described by it`s properties. Since these are normally relations among the properties of a system. It can be specified by providing the values of a subset of the properties. A. Close system B. Process C. Properly D. Open System E.State 4. A process that occur at constant temperature a.Isothermal Process b.Adiabatic process c.Isentropic process d.Isobaric processarrow_forward
- The mass flow rate is , the volume flow rate is , density is , and the specific volume is . What is (are) the correct expression (s) below?_________ A. B. C. D.arrow_forwardneed help. air conditioningarrow_forward15. What is the final volume if a certain gas has 520cm at pressure of 750mmHg absolute and 28°C go through process until the pressure and 760mmHg absolute and 0°C respectively? a. 441.3674cm³ b. 478.1480cm³ c. 459.7577cm3 d. 465.4461cm³arrow_forward
- 67. The dew point temperature for DBT = 20 oC and WBT = 15 oC is Select one: a. 5.1 oC b. 14.5 oC c. 11.7 oC d. 18 oCarrow_forwardIn a cooling tower, the make up water consists of a. drift loss and evaporation loss b. drift loss evaporation loss, boiler loss C. evaporation and blowdown losses only d. drift loss, evaporation loss, blow down loss.arrow_forward5. Define moist airarrow_forward
- Fill the balks with the correct word/words d-For turbulent flow, Reynold Number is e- A pump is a rotodynamic pump that converts mechanical energy to hydraulic pressure energy. f- turbine can be used in rivers, man-made channels, tidal waters. g- The First Law of Thermodynamic state that__ h- i- is a change in the system from one equilibrium state to another. transfer heat from low to high temperature stages by using mechanical work. j- Adiabatic process meansarrow_forwardK 1 . 1. Conditions: Outside winter time -5C and 80% RH. What is the moisture content of the outside air? Provide your answer to within 0.0004 kg wv/kg dry air of the correct answer. 2. Conditions: Outside winter time -5C and 80% RH. What is the enthalpy of the outside air? Provide your answer to within 2 kJ/kg dry air of the correct answer. 3. "Use the outside air from the first 2 questions. Now bring this outside air inside for ventilation of a house, and heat it to 23C (without adding moisture). What is the new RH (relative humidity) of this air? Provide your answer to within 3% of the correct answer." 4. What is the moisture content of dry air and water vapour at 23C and 40% RH? Provide your answer to within 0.0004 kg wv/kg dry air of the correct answer. 5. "Now using the outside air you have warmed up in question 3. How much moisture do you need to add to this air now, so that at 23C it will be at 40% RH? Provide your answer to within 0.0004 kg wv/ kg dry air of the correct…arrow_forwardIf the sling psychrometer read 34 degree dry bulb temperature & 28 degree wet bulb temperature determine the following using the psychrometric chart. 1. Relative humidity in% 2. Moisture content 3. Dew point temperature 4. Enthalpy of air.arrow_forward
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