Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — May 2018 — 04-Agric-A3 Heat Engineering. Three-hour, open-book exam; any non-communicating calculator permitted. Four questions constitute a complete paper, each of equal value, and all four questions require calculation — the first four problems as printed are worked below in full.
Reference texts: M.J. Moran, H.N. Shapiro, D.D. Boettner & M.B. Bailey, Fundamentals of Engineering Thermodynamics, 8th ed. (ideal vapor-compression refrigeration cycle, R-134a property tables); Y.A. Çengel & A.J. Ghajar, Heat and Mass Transfer: Fundamentals and Applications, 5th ed. (convection coefficients, forced-convection boundary layers); F.P. Incropera & D.P. DeWitt, Fundamentals of Heat and Mass Transfer, 7th ed. (Blasius boundary-layer solution, Table 6.1); J.P. Holman, Heat Transfer, 10th ed. (radiation view factors for coaxial disks and enclosures).
