A 100 x 300 mm ammonia compressor with a compression efficiency of 82% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1203.7 kPa at 30 rps. The refrigerant cools 100 kg/min of water from 250C to 20C and assuming 5% of the useful refrigerating effect is lost due to the process of cooling, give that, h2 = 1653 kJ/kg, h1 = 1450.22 kJ/kg, h3 = 346.614 kJ/kg, v1 = 417.477 L/kgdetermine:a.) RE in tons of refrigeration b.) mass flow rate of ammoniac.) actual work of compression kWd.) find Brake work (kW) if mechanical eff is 90%e.) Actual volumetric efff.) clearance volumetric eff if c=6% A 100 x 300 mm ammonia compressor with a compression efficiency of 82% operates with a suction pressure of291.57 kPa and a condenser pressure of 1203.7 kPa at 30 rps. The refrigerant cools 100 kg/min of water from25°C to 2°C and assuming 5% of the useful refrigerating effect is lost due to the process of cooling, determine:a) RE in tons of refrigeration h2 = 1653 kJ/kg, h1 = 1450.22 kJ/kg, h3 = 346.614 kJ/kg, v1 = 417.477 L/kgb) mass flow rate of ammoniac) actual work of compression kWd) find Brake work (kW) if mechanical eff is 90%e) Actual volumetric efff) clearance volumetric eff if c=6%

Given, bore of the compressor , d = 100 mm stroke of the compressor , L = 200mm Condenser pressure…

Answered: A 100 x 300 mm ammonia compressor with…

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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A 100 x 300 mm ammonia compressor with a compression efficiency of 82% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1203.7 kPa at 30 rps. The refrigerant cools 100 kg/min of water from 25⁰C to 2⁰C and assuming 5% of the useful refrigerating effect is lost due to the process of cooling, give that,

h₂ = 1653 kJ/kg, h₁ = 1450.22 kJ/kg, h₃ = 346.614 kJ/kg, v₁ = 417.477 L/kg

determine:

a.) RE in tons of refrigeration

b.) mass flow rate of ammonia

c.) actual work of compression kW

d.) find Brake work (kW) if mechanical eff is 90%

e.) Actual volumetric eff

f.) clearance volumetric eff if c=6%

A 100 x 300 mm ammonia compressor with a compression efficiency of 82% operates with a suction pressure of
291.57 kPa and a condenser pressure of 1203.7 kPa at 30 rps. The refrigerant cools 100 kg/min of water from
25°C to 2°C and assuming 5% of the useful refrigerating effect is lost due to the process of cooling, determine:
a) RE in tons of refrigeration h2 = 1653 kJ/kg, h1 = 1450.22 kJ/kg, h3 = 346.614 kJ/kg, v1 = 417.477 L/kg
b) mass flow rate of ammonia
c) actual work of compression kW
d) find Brake work (kW) if mechanical eff is 90%
e) Actual volumetric eff
f) clearance volumetric eff if c=6%

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