22-Mec-A1 Applied Thermodynamics and Heat Transfer: December 2016

Reference texts: Çengel & Boles, Thermodynamics: An Engineering Approach (9th ed., McGraw-Hill) — closed- and open-system energy balances, boundary work, reciprocating-compressor and vapour/gas power cycles, and gas-turbine refrigeration; Çengel & Ghajar, Heat and Mass Transfer (6th ed.) and Incropera, DeWitt, Bergman & Lavine, Fundamentals of Heat and Mass Transfer (8th ed., Wiley) — radial composite-wall conduction, internal-flow decay, natural convection with radiation from a horizontal cylinder, and the ε–NTU cross-flow heat-exchanger method. Air and steam properties are evaluated from IAPWS-IF97 / ideal-air data; the gas-turbine cycle uses cold-air-standard constant specific heats.

Paper format: National Examination 07-Mec-A1, December 2016, 3 hours, open book. Part A — Thermodynamics (Q1–4); Part B — Heat Transfer (Q5–8). Each answer carries equal value; a complete paper is any five (three from one part and two from the other). All eight questions are solved in full below.