Answered: Figure below shows a steam jet…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Figure below shows a steam jet refrigeration system that produces chilled water in a flash chamber. The chamber is maintained at a pressure by the steam ejector, which removes the vapor generated by entraining it in the low-pressure jet and discharging into the condenser. The vacuum pump removes air and other non-condensable gases from the condenser shell. For the conditions shown on the figure, determine the make-up water and cooling water flow rates in kg/hr.

Sat. vapor at
250 kPa
Make-up water
20°C
5
4
25,000 kg/h
3
لیا
Ejector nozzle
Flash chamber
water
Cooling load
150 tons
Pump
6
2
Steam jet
5C
Sat. vapor
7
P = 6 kPa
8
Vacuum pump
Cooling water
in @ 20°C
30°C
Condensate
return to drain
Condenser

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