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 21, Problem 3RQ
The sensible heat that is added to a saturated vapor after all of the liquid has boiled away is referred to as _____.
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1. The phase change from a solid to a liquid is referred to as:
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State the standard conditions for water to boil at 212°F.
2- What is the difference between subcooled liquid and saturated liquid?
Chapter 21 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 21 - What is the function of the evaporator in the...Ch. 21 - Refrigerant in the evaporator A. changes from...Ch. 21 - The sensible heat that is added to a saturated...Ch. 21 - What determines the pressure on the low-pressure...Ch. 21 - A refrigerant system's evaporator typically runs...Ch. 21 - What does a high evaporator superheat indicate?Ch. 21 - A low evaporator superheat indicates A....Ch. 21 - Why is a multicircuit evaporator used?Ch. 21 - Flooded evaporators use a(n) ______type of...Ch. 21 - An evaporator that is not flooded is thought of as...
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- Evaporative cooling PLEASE DO NOT USE PSYCHROMETRIC CHART. THANK YOU In the diagram below inlet air is drawn over a pool of liquid water in a steady-state, steady-flow isobaric process. Evaporation on the pool resultsin saturated air at the exit. The pool of liquid water is assumed to be at the same temperature as the exitair. Discharge fans at the exit provide a volumetric flow rate of 800,000 ft3/min. In the diagram above inlet air is drawn over a pool of liquid water in a steady-state, steady-flow isobaric process. Evaporation on the pool resultsin saturated air at the exit. The pool of liquid water is assumed to be at the same temperature as the exitair. Discharge fans at the exit provide a volumetric flow rate of 800,000 ft^3/min. Problem #1: Assume that the exit temperature is T2 = 90 °F. For this model of the system and from thedata provided determine:a) The mass flow rate dry air through the system (lbm/sec).b) The rate of heat that is output from the R-134a condenser Qout…arrow_forwardPLEASE DO NOT USE PSYCHROMETRIC CHART. THANK YOU In the diagram below inlet air is drawn over a pool of liquid water in a steady-state, steady-flow isobaric process. Evaporation on the pool resultsin saturated air at the exit. The pool of liquid water is assumed to be at the same temperature as the exitair. Discharge fans at the exit provide a volumetric flow rate of 800,000 ft3/min. Problem #2: Assume that the R134a chiller is turned off such that Qout = 0, but the evaporative coolersystem continues to operate. Determine:a) The exit temperature, T2 (°F)b) The mass flow rate dry air through the system (lbm/sec).c) The rate of liquid water resupply required for continuous operation (lbm/hour).arrow_forwardQUESTION 14 Determine the type of steam, given: Enthalpy: 2502 kl/kg Pressure: 0.85 MPa O Superheated Vapor Saturated Liquid O subcooled Liquid O Wet Vaporarrow_forward
- Define the following terms: a. heat of fusion b. heat of vaporization c. heat capacity d. boiling point of water e. freezing point of waterarrow_forward6-The point at which water directly converts into steam is called ___________ A.sensible heat of vaporisation B.latent heat of vaporisation C.saturation point D.critical pointarrow_forwardQuestion: 3 Calculate the dryness fraction, specific volume and internal energy ‘u’ of steam at 7 bar and specific enthalpy =2600 kJ/kgarrow_forward
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