Concept explainers
The low-pressure side of the system must not be pressurized to more than
A. 75 psig.
B. 200 psig.
C. the low-side design pressure.
D. atmospheric pressure.
The maximum pressure up to which the low pressure side of the system can be pressurized.
Answer to Problem 1RQ
The maximum pressure up to which the low pressure side of the system can be pressurized
Explanation of Solution
The pressure used to pressurize a system must not exceed the lowest pressure for the system. The system which is being subjected to pressurization must be allowed to stand still for a time period of at least 10 minutes. This will allow for the equalization of the pressure in the system. After the equalization of the pressure, it is important to mark the high pressure gauge after tapping the gauge to settle down the needle.
The low pressure side of the refrigeration system has a normal working pressure of
The low pressure side of the refrigeration system includes evaporator, compressor and the suction line. The compressor head and the outlet or the discharge head are taken to be on the high pressure side of the system. The test pressure in the high pressure side of the refrigeration system for a majority of the refrigerants is minimum
Conclusion:
The maximum pressure up to which the low pressure side of the system can be pressurized
Want to see more full solutions like this?
Chapter 8 Solutions
Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
- Q2. (30 Marks) For the following figure: 1. Read the tolerances (GD&T) from the figure? 2. Write the Opitz code (5 digits only) for this product? 3. Write few points about point cloud? And how it can be used to inspect the geometry of products? 4. Draw sketch (free hand) to the top view of the figure below? (()) 5. For the symbol below the figure, what does it means? () will jo الهندسي 08±0.01 A 020±0.01 00.02MAM BM 010±0.01 00.02MAM ماذا يعني هذا Barrow_forwardQ: Find the steady-state response of the system shown in the figure below. Pulley, mass moment of inertia Jo 寻 k2 00000 For the following data: Fo sin of m 00000 uu x(t) w FO JO r m C k2 [Rad/s] [N] kg-m [cm] [Kg] [N.s/m] [N/m] kl [N/m] 28 58 1.8 13 18 540 540 1080arrow_forwardEx. Determine the safety factor for the bracket rod shown below for N = 6 x 107 Cycles. The notch radius at the wall is Y=0.25 cm.. the braket is made from Aluminum 2024, Cold-drawn with σy, 290 MP 441 MPa. L = 10 cm, a = 8 cm, d = 2cm. "Out = d Wall A rod arm a Farrow_forward
- dynamically Ex: A rectangular stepped bar is to be loaded in bending. · Determin the fatigue stress concentration factor for a given dimensions. Out = 324 MPa (steel) M d= 1.8 cm 2 D= 1 cm r= 0.25 cmarrow_forwardEx. Create an estimated S-N diagram for an aluminum bar and define its equation . what is the corrected fatigue strength at N = 2 #10 cycles ? Out = 310 MPa, the forged bar is 3.81 cm in N=2107 round. The load is fully reversed torsion.arrow_forwardand Ex. Create an estimation of S-N diagram for asteel, axially loaded bar and define its equation. How many cycles of life can be expected if the alternating stress is 100 MPa. The bar is 150 min has a hot-rolled finish. The operating temp. is 500 °C. out 600. MPa. The loading will be. pure axial, fully reversed. Square =arrow_forward
- Create an estimation of S-N diagram for asteet, axially loaded bar and define its equation. How many cycles of life can be expected if the alternating stress is 100 MPa. The bar is 150 mm has 9 The loading will be. pure axial, fully reversed. hot-rolled finish. The operating temp. is 500 °C. Out = 600 MPa. Square andarrow_forwardEx. Repeat Ex. in page (24), with fluctuating load as shown below. By = 462 M2, Out = 552 MPa. Find the safety factor (NF) using Modified - Goodman, Gerber, and soderberg criterias F(N) 400 100 timearrow_forwardut Ex. The cantilever beam shown is, made from steel with σ = 552 MPa is subjected to fully reversed load. Neglect shear stress q :10 cycles effect, estimate wheather the beam is safe or not safe at N= los The beam is machined surface and the operating temp. is 100c. D 764 L= 10cm L D= 1.3 Cm d = 1 cm b= 1 cm momend diagram -FLarrow_forward
- Ex. Design to Carry a Cylindrical thin pressure vessel with hemispherical ends for infinite life. Find the appropriate, thickness (t) of the vessel a sinusoidal pressure varied from (0) to (1 MPa). the vessel is made from steel 1030 hotrolled with out = 467.MP¬ and the operating temperature is 300 °C. The diameter of the cylinder D= 0.3 m . Using safety factor N = 2.arrow_forwardEx. Create an estimated S-N diagram for an aluminum bar and define its equation what is the corrected fatigue strength at 7 N = 2 * 10 cycles ? Out = 310 MPa, the forged bar is 3.81 cm in round. The load is fully reversed torsion.arrow_forward1 Estimate the factor of safety fora ductile materail having by = 100 MPa, with the state of stress shown in the element. 30 MPa 12MPA zo M R HP. 1 12MP 30 MPa 20 MPa x '12 MPaarrow_forward
- Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage LearningWelding: Principles and Applications (MindTap Cou...Mechanical EngineeringISBN:9781305494695Author:Larry JeffusPublisher:Cengage LearningPrecision Machining Technology (MindTap Course Li...Mechanical EngineeringISBN:9781285444543Author:Peter J. Hoffman, Eric S. Hopewell, Brian JanesPublisher:Cengage Learning