A model of fluid behaviour is proposed for both air and steam in Joule, Brayton, and Rankine cycles by assuming that enthalpy is a function of temperature only. This enables reheat to be treated in a unified manner for both gas and steam turbines. Theorems for maximum power and maximum thermal efficiency are presented, with extensions to inter-cooling in gas turbines and afterburners in turbo-jet craft.
HaywoodR. W.Analysis of Engineering Cycles, (third edition), 1987 (CUP, Cambridge).
2.
LewinsJ. D.The ideal gas Joule cycle at maximum specific work. Proc. Instn Mech. Engrs. Part C:J. Mechanical Engineering Science, 2001, 214(C12), 1545–1551.
3.
LewinsJ. D.Introducing the Lagrange multiplier to engineering mathematics, Int. J. Mech. Engr. Educ., 1994, 22 (3), 181–207.
