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2nd Semester
BT-203
Unit 5 Notes

BT-203 Basic Mechanical Engineering Unit 5 Notes

Notes and important questions for unit 5: Unit V: Thermodynamics and Reciprocating Machines.

Unit 5 · Short notes Unit V: Thermodynamics and Reciprocating Machines Thermodynamic system, properties, state and process; Zeroth, First and Second laws of thermodynamics · Thermodynamic processes at constant pressure, volume, enthalpy and entropy · Steam engineering – classification and working of boilers, mountings, efficiency, performance analysis, natural and artificial draught, steam properties and steam tables · Reciprocating machines – working principle of steam engine, Carnot, Otto, Diesel and Dual cycles with P‑V and T‑S diagrams and efficiencies · Two‑stroke and four‑stroke petrol and diesel engines, compressor operation

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