CSVTU B.E. VIII Semester Mechanical Engineering Refrigeration & Air Conditioning Syllabus

Chhattisgarh Swami Vivekanand Technical University, Bhilai

Semester: B.E. VIII Sem. Branch: Mechanical Engg.

Subject: Refrigeration & Air Conditioning

Total Theory Periods: 50 Total Tutorial Period : 12

Total Marks in End Semester Exam: 80

Minimum number of class tests to be conducted: 2

Note : Refrigerant and Psychrometric Properties (Tables and Charts) by Jain Brothers

Publications are Permitted in the examination.

UNIT – I

Introduction

Refrigeration and second law of Thermodynamics, Refrigeration effect and unit of Refrigeration, Heat

pump, reversed Carnot cycle.

Vapour Compression Refrigeration System

Analysis of simple vapour compression Refrigeration cycle by p-h and T-S diagram. Effect of operating

conditions, liquid vapour heat exchangers, actual refrigeration cycle.

Multiple Evaporator and compressor system.

Application, air compressor system, Individual compressor, compound compression, cascade system.

Application, air compressor systems, individual compressor, compound compression, cascade system.

UNIT – II

Gas cycle Refrigeration

Limitation of Carnot cycle with gas, reversed Brayton cycle, Brayton cycle with regenerative H.E.

Air cycle for air craft

Necessity of cooling of air craft, Basic cycle, boot strap, regenerative type air craft refrigeration cycle.

UNIT – III

Vapour Absorption System

Simple Vapour absorption system, Electrolux Refrigerator, Analysis of Ammonia absorption

refrigeration system, Lithium Bromide Absorption Refrigeration System.

Refrigerants

Classification, Nomenclature, selection of Refrigerants, global warming potential of CFC Refrigerants.

Refrigeration Equipments

Compressor, condenser, evaporator, expansion devices – types & working.

UNIT – IV

Psychrometry

Psychrometric properties, psychometric relations, pyschrormetric charts, psychrometric processes,

cooling coils, By-pass factor and air washers.

Human Comfort

Mechanism of body heat losses, factors affecting human comfort, effective temperature, comfort chart.

UNIT – V

Cooling load calculations

Internal heat gain, system heat gain, RSHF, ERSHF, GSHF, cooling load estimation, heating load

estimation, psychrometric calculation for cooling, selection of air conditioning, apparatus for cooling and

dehumidification, Air conditioning system

TEXT BOOKS

1. Refrigeration & Air Conditioning – Ahmadid, Amean – PHI

2. Refrigeration and Air Conditioning –C. P. Arora – TMH.

REFERENCE BOOKS

1.

Refrigeration and Air Conditioning – Manohar Prasad – Newage International Pub

2.

Refrigeration and Air Conditioning – Arora & Domkundwar – Dhanpat Rai & Sons

3.

 

Refrigeration and Air Conditioning – P.L. Ballaney – Khanna

 

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