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Introduction to Course (in Hindi)
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It is brief introduction to the course. Preparation strategy is also discussed.

Gaurav Joshi
Mechanical Engineer. Secured AIR 5 in ESE & AIR 47 in GATE. Also cleared BARC,ONGC,ISRO. Worked for BARC, HITACHI.Guitar player & Vocalist

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  1. Refrigeration & Air- Conditioning (RAC) (For ESE AND GATE) GAURAV JOSHI


  2. About me GAURAV JOSHI o B. Tech in Mechanical Engineering (2010-14) o Secured AIR 5 in ESE-2017 Secured AIR 47 in GATE-2017 Worked For BARC in 2017 Taught Physics in Allen Institute from 2014-16 Career Institute and Aakash c Worked for Hitachi (Air Conditioners) in 2014


  3. About the course ooOooOOO 1. Basic Concepts of Air Conditioning 2. **Numerical Problems and solutions.** Highlights: The syllabus is defined by UPSC for its technical paper and Last year problems are also available. Developing approach to solve problem is most important for any competition


  4. Course Contents 1. Introduction to Refrigeration & Basic knowledge of Thermodynamics required 2. Vapor Compression Refrigeration 3. Vapor Absorption Refrigeration 4. Refrigerants: Types & Properties 5. Refrigeration EquipmentCompressors, Evaporator, Condensers, Expansion Devices 6. Air Conditioning: Properties of moist air 7. Psychrometric Charts


  5. RAC in ESE & GATE oOOOo OO It is application part of Thermo-Dynamics, So not very difficult. Scoring Subject. In ESE prelims 12-16 marks out of 300 In ESE mains: 50-70 marks out of 600. In GATE: 4-5 marks out of 100


  6. Preparation Strategy 1. First learn theory, Apply concepts in last 2. Mark difficult and important problems, try 3. Don't pile up things and plan according to oOOOo OO year problems. them in next revision plan your capacity


  7. THANK YOU