Covers the vapour compression refrigeration cycle and its application to coach air-conditioning systems — an increasingly important area given the growing proportion of AC coaches in the Indian Railways fleet.
Key Points
- The vapour compression cycle (compressor → condenser → expansion valve → evaporator) is the standard system used in Indian Railways coach AC units.
Content Status
Draft note, grounded in real official syllabus text found via research but not yet cross-checked against the primary RBE PDF directly. Treat as study-aid only until verified.