Semester : SEMESTER 7
Subject : Refrigeration and Air Conditioning
Year : 2019
Term : may
Branch : MECHANICAL ENGINEERING
Scheme : 2015 Full Time
Course Code : ME 405
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G1064 Pages:
Explain in detail about “Equal Friction Method “2 duct design
Differentiate between Packaged and Central air conditioning systems
Moist air exists at 24°C DBT and 18°C WBT. Find the properties of air at
101.325 kPa using equations. Also find the properties at 80 kPa.
Ambient air at 40°C DBT and 30% RH is cooled in an air washer of 85%
efficiency. Find the properties of humid air?
2.5 kg of air is cooled and dehumidified from 30°C DBT, 40% RH to 15°C DBT
& 80% RH in a cooling and dehumidifying coil. Find (i) ADP, (ii) Bypass
Factor and (iii) Heat Transfer. If bypass factor is halved keeping the ADP same
find (iv) exit air condition and (v) Heat Transfer.
With the help of a neat diagram explain year round refrigeration system
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