Lab Manual for Tomczyk/Silberstein/ Whitman/Johnson’s Refrigeration and Air Conditioning Technology, 8th
8th Edition
ISBN: 9781305578708
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 25, Problem 25RQ
What will happen if the float in an oil separator collapses?
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B:
Find the numerical solution for the 2D equation below and calculate the temperature values for
each grid point shown in Fig. 2 (show all steps).
(Do only one trail using following initial values and show the final matrix)
T₂
0
T3
0
loc
Show all work. Indicate the origin that is used for each plane.
Identify the Miller indices for the following planes.
N
23
1
A)
X
B)
y
the following table gives weight gain time data for the oxidation of some metal at an elevated temperature
W(mg/cm2). Time (min)
4.66 20
11.7 50
41.1 175
a) determin whether the oxidation kinetics obey a linear, parabolic, or logarithmic rate expression.
b) Now compute W after a time of 1000 min
Chapter 25 Solutions
Lab Manual for Tomczyk/Silberstein/ Whitman/Johnson’s Refrigeration and Air Conditioning Technology, 8th
Ch. 25 - Which is not a basic component of the compression...Ch. 25 - Describe modulating fluid flow.Ch. 25 - The purpose of the crankcase pressure-regulating...Ch. 25 - Describe the function of an electric evaporator...Ch. 25 - Prob. 5RQCh. 25 - Briefly describe the function of a...Ch. 25 - Two types of relief valves are_______and ______.Ch. 25 - Why is low-ambient control necessary?Ch. 25 - Which is not a method of low-ambient control on...Ch. 25 - Low-pressure switch
Ch. 25 - High-pressure switchCh. 25 - Low-ambient(switch)Ch. 25 - Oil safety switchCh. 25 - What is the function of the current sensing relay...Ch. 25 - Why is there a time delay in an oil safety...Ch. 25 - What is off-cycle defrost?Ch. 25 - Two types of off-cycle defrost are______and...Ch. 25 - Two methods for accomplishing defrost on...Ch. 25 - Filter drierCh. 25 - Heat exchangerCh. 25 - Suction accumulatorCh. 25 - ReceiverCh. 25 - Prob. 23RQCh. 25 - Prob. 24RQCh. 25 - What will happen if the float in an oil separator...Ch. 25 - The function of the evaporator pressure regulator...Ch. 25 - What is the function of the oil return hole or...Ch. 25 - What is the function of the pressure equalization...
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- A cylindrical specimen of aluminum is pulled in tension. Use the stress v. strain plot below for this specimen of Al to answer parts (a) - (f). Hint: Each strain increment is 0.004. Be sure to include your engineering problem solving method per the class rubric. 400 350 300 250 Stress (MPa) 200 150 100 50 Aluminum (Stress v. Strain) 0 0 0.02 0.04 0.06 0.08 Strain 0.1 0.12 0.14 0.16 a. Compute the modulus of elasticity. b. Determine the yield strength at a strain offset of 0.002. c. Determine the tensile strength of this metal. d. Compute the ductility in percent elongation. e. Compute the modulus of resilience. f. Determine the elastic strain recovery for an unloaded stress of 340 MPa.arrow_forwardConsider a single crystal of silver oriented such that a tensile stress is applied along a [112] direction. If slip occurs on a (011) plane and in a [111] direction and is initiated at an applied tensile stress of 15.9 MPa, compute the critical resolved shear stress.arrow_forwardA hypothetical component must not fail when a tensile stress of 15.25 MPa is applied. Determine the maximum allowable internal crack length if the surface energy of the component is 1.50 J/m2. Assume a modulus of elasticity of 350 GPa.arrow_forward
- Fresh air at 21.1 C in which partial pressure of water vapor is 0.018 atmosphere is blown at the rate of 214 m3/h first through a preheater and then adiabatically saturated in spray chambers to 100% saturation and again reheated this reheated air has humidity of 0.024 kg water vapor per kg dry air. It is assumed that the fresh air and the air leaving the re-heater have the same percentage humidity. Determine:- a- The temperature of preheater, spray-chamber and re-heater b- Heat requirement for preheating and re-heating 11:39 مarrow_forwardThe answer to the problem is 7.24 N. Please show me how to get the final answerarrow_forwardThe answer to the problem is 17.9N. Please show me how to get the final answerarrow_forward
- The answer to the problem is 2.93 ft/s. Please show me how to get the final answerarrow_forwardExample(3): 0.15 kg/s steam at atmospheric pressure and superheated to 400 K is bled into an air stream at 320 K and 20 per cent relative humidity. What is the temperature, enthalpy, and relative humidity of the mixed stream if the air is flowing at 5 kg/ s? How much steam would be required to provide an exit temperature of 330 K and what would be the humidity of this mixture? 11:39 مarrow_forwardThe answer to the problem is 31.3rad/s. Please show me how to get the final answerarrow_forward
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