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 44, Problem 9RQ
What is the main difference between a copper and a cupronickel coaxial heat exchanger, and where is each used?
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Chapter 44 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 44 - Geothermal heat pumps, or water-source heat pumps,...Ch. 44 - An important factor (or factors) involving water...Ch. 44 - Explain the ground loop or water loop of a...Ch. 44 - Explain the refrigerant loop of a closed-loop,...Ch. 44 - The__________loop is used to distribute heated or...Ch. 44 - True or False: Domestic hot water can be heated...Ch. 44 - Prob. 7RQCh. 44 - Antifreeze solutions that can be used in the...Ch. 44 - What is the main difference between a copper and a...Ch. 44 - A(n) ______well draws water from the top of...
Ch. 44 - Which of the following is a process in which a...Ch. 44 - The function of the pressure tank in an open-loop,...Ch. 44 - If 14 gpm of water is flowing through an open-loop...Ch. 44 - Explain the operation/purpose of the buffer tank...Ch. 44 - How will oversizing the buffer tank on a...Ch. 44 - Explain why a waterless, earth-coupled,...Ch. 44 - Explain how refrigerant and oil leakage are found...Ch. 44 - What kind of material is used in the waterless...
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- DISCUSSION: which materials more effective in heat exchangers ,the less specific heat or the greater one.arrow_forwardWhy are HENs (Heat exchangers networks) much more challenging to design with just a single equipment unit?arrow_forwardAnswer of Q2 and Q3 Q2 : factors that influence the thermal diffusivity? Q3: Compare between steam infusion and steam injection heat exchangers?arrow_forward
- what is "heat exchanger piping system"? give definition type your answerarrow_forwardDescribe the operational principles of 'Microchannel’ Heat Exchangers.arrow_forwardEQUIPMENT: SHELL AND TUBE TYPE HEAT EXCHANGER Please explain followings on the equipment Materials:(Example: Food grade, chemical grade, anti-corrosion, the most economic, etc?) Safety and environmental issues?arrow_forward
- Which of the following applies to the heat exchanger temperature profile shown on the right?Circle all that apply.i. Latent heatii. Sensible heatiii. Co-currentiv. Counter-currentv. Vapor condensationvi. Liquid evaporationarrow_forwardProblem 2 A counterflow heat exchanger with both fluids (i.e., water and air) being unmixed. The water has a flow rate of 0.07 kg/s, enters the heat exchanger at 400 K and leaves at 300 K. The water is cooled by air that enters at 0.75 kg/s and 250 K. Cp for the water and air are 4200 J/kg.K and 1007 J/kg.K, respectively. 1. Explain how do you calculate the rate of transfer for a heat exchanger. 2. If the overall heat transfer coefficient is 150 W/m² K, Calculate the total heat transfer rate through this heat exchanger? 3. What if you use a parallel flow heat exchanger instead of the counter flow heat exchanger, determine the total heat transfer rate? 4. What are the main differences between parallel and counter flow heat exchangers and which heat exchanger is better for refrigeration and air conditioning application.arrow_forwardWhat is the purpose of a heat sink?arrow_forward
- 1. In a shell and tube heat exchanger _________________________ a.The relationship between temperature drop and resistance is not generalized b.There is no relationship between temperature drop and resistance c.The temperature drop is inversely proportional to the resistance across which the drop occurs. d.the temperature drops in the two fluids and the wall are proportional to individual resistancesarrow_forward(1) A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (D; = 20 mm) is 0.5 kg/s, while the flow rate of oil through the outer tube (Do = 45 mm) is 0.3 kg/s. The oil and water enter at temperatures of 100 and 30°C, respectively. A) What is the main difference between parallel and counter flow heat exchangers? B) How long must the tube be made if the outlet temperature of the oil is 60°C? C) If the heat exchanger is changed to parallel flow heat exchanger, how long must the tube be made if the outlet temperature of the oil is 60°C?arrow_forwardDiscuss fouling of heat exchangers in detail.arrow_forward
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