
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Draw the schematic and p-h diagram for the problem below:
A two-stage cascade refrigeration system uses ammonia as the working substance. The evaporator is at -35 degree Celsius and high pressure condenser is at 1514.2 kPa. The cascade condenser is a direct-contact type. The refrigeration load is 90 tons. Determine the a.) mass flow rate in the low-pressure loop. b.) The mass flow rate in the high-pressure loop, c.) the power required, d.) the COP, and e.) the quantity of the fluid entering.
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- A. Describe the four processes, which occur in the vapor-compression-refrigeration cycle that youtested.B. How did you figure out the enthalpy at the various entry / exit stages? (I know you lookedat the chart or table provided! I understand that you may have used interpolation.) I want you toexplain briefly how you determined, what principle(s) you used to determine the enthalpy at thevarious points.Sketch a p-h diagram. On this sketch of the p-h diagram you must sketch and show SOME constanttemperature lines, constant pressure lines, constant enthalpy lines, constant entropy lines, quality factorand other significant features of the p-h diagram to show your understanding of the p-h diagram. Labelx & y axis, indicate the units, indicate the critical point. Label various regions,arrow_forwardB-Draw the ideal vapour compression refrigeration cycle on T-S and P-H diagrams. State all details on the diagrams and give a short explanation of each process of the cycle.arrow_forward1 The condenser can be part of which loop(s)? a- Airside loop b- Chilled-water loop c- Refrigeration loop d-Heat-rejection loop e-Controls loop 2 The evaporator can be part of which loop(s)? a- Airside loop b- Chilled-water loop c- Refrigeration loop d-Heat-rejection loop e-Controls loop 3 Which loop is eliminated in a direct expansion (DX) system? a- Airside loop b- Chilled-water loop c- Refrigeration loop d-Heat-rejection loop e-Controls loop 4 What are some benefits of using a "packaged" piece of cooling equipment rather than a "split" system?arrow_forward
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