Course Content:

Introduction: Refrigeration and air-conditioning, definitions, Psychrometry, sensible/ latent cooling loads, apparatus, dew point, complete psychrometric analysis, building heat load calculation, infiltration and moisture transport, winter air conditioning, part load operations and control; Refrigeration cycles, multi-staging and cascading, aircraft refrigeration and air conditioning, design of cooling coil, heat pump, solar refrigeration system; Supporting material: Boiling heat transfer, forced convection boiling, film condensation, condensation on radial systems, Overall heat transfer coefficient, LMTD and NTU methods, cooling tower; Special topics/case studies: such as Solar thermal dynamics, energy efficient buildings, automobile air-conditioning, space thermal management, mini-microscale refrigeration systems, CO2 based systems, VRF and VFD systems, etc.

Lecturewise Breakup

I. Psychrometry and Air conditioning (16 lectures):

• Psychrometry, sensible and latent cooling load, Apparatus Dew point, complete psychrometric analysis, building heat load calculation, infiltration and moisture transport, winter air conditioning, part load operations and control.

II Refrigeration Systems (10 Lectures):

• Refrigeration cycles, multi-staging and cascading, aircraft refrigeration and air conditioning, design of cooling coil, heat pump, solar refrigeration system

III. Phase-Change Heat Transfer (4 lectures):

• Boiling heat transfer, forced convection boiling, film condensation, condensation on radial systems.

IV. Heat Exchanger Design (4 lectures):

• Overall heat transfer coefficient, LMTD and NTU methods, cooling tower

V. Special topics/ case studies (6 lectures):

• Solar thermal dynamics

• Air conditioning system design varieties, energy efficient buildings.

• Automobile heat load calculation.

• Small scale refrigeration systems.

• Space Thermal Management.

• VRF/VFD systems.

References:

1. Refrigeration and Air-conditioning, C. P. Arora, 3rd Edition,Tata Mc Graw Hill.