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An ammonia compressor of an ice plant is driven by 175 kW electric motor. The belt transmission efficiency is 94.5% while the mechanical efficiency of the compressor is 85%. The water used in making ice is supplied to the 300-lb block ice per can at 18OC temperature and ice leaves the plant at -6.5OC. The coefficient of performance is 2.0. Heat losses conducted into the brine are 15% of the chilling and freezing load. Calculate: a) The refrigeration capacity b) The ice plant capacity c) The number of ice cans needed if brine temperature is -7.50OC

An ammonia compressor of an ice plant is driven by 175 kW electric motor. The belt transmission efficiency is 94.5% while the mechanical efficiency of the compressor is 85%. The water used in making ice is supplied to the 300-lb block ice per can at 18OC temperature and ice leaves the plant at -6.5OC. The coefficient of performance is 2.0. Heat losses conducted into the brine are 15% of the chilling and freezing load. Calculate: a) The refrigeration capacity b) The ice plant capacity c) The number of ice cans needed if brine temperature is -7.50OC

Elements Of Electromagnetics
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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An ammonia compressor of an ice plant is driven by 175 kW electric motor. The belt

transmission efficiency is 94.5% while the mechanical efficiency of the compressor is 85%.

The water used in making ice is supplied to the 300-lb block ice per can at 18OC

temperature and ice leaves the plant at -6.5OC. The coefficient of performance is 2.0.

Heat losses conducted into the brine are 15% of the chilling and freezing load.

Calculate:

a) The refrigeration capacity

b) The ice plant capacity

c) The number of ice cans needed if brine temperature is -7.50OC.

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