ME1100 Thermodynamics


Objectives:

To learn the first and second laws of thermodynamics and their application to equipment and devices of relevance to mechanical engineering.

Course Contents:

Fundamentals – System & Control volume; Property, State & Process; Exact & Inexact differentials; Work – Thermodynamic definition of work; examples; Displacement work; Path dependence of displacement work and illustrations for simple processes; Other forms of work – electrical, spring and shaftTemperature – Definition of thermal equilibrium and 0th (Zero) law; Temperature scales; Various Thermometers Heat – Definition; examples of heat/work interaction in systemsFirst Law – Cyclic & Non-cyclic processes; Concept of total energy E ; Demonstration that E is a property; Various modes of energy; Pure substance Ideal Gases and ideal gas mixtures Properties of two phase systems – Const. temperature and Const. pressure heating of water; Definitions of saturated states; P-v-T surface; Use of steam tables and R134a tables; Saturation tables; Superheated tables; Identification of states & determination of properties First Law for Flow Processes – Derivation of general energy equation for a control volume; Steady state steady flow processes including throttling; Examples of steady flow devices; Unsteady processes Second law – Definitions of direct and reverse heat engines; Definitions of thermal efficiency and COP; Kelvin-Planck and Clausius statements; Definition of reversible process; Internal and external irreversibility; Carnot cycle; Absolute temperature scale Entropy – Clausius inequality; Definition of entropy S ; Demonstration that entropy S is a property; Evaluation of S for solids, liquids, ideal gases and ideal gas mixtures undergoing various processes; Determination of s from steam tables; Principle of increase of entropy; Illustration of processes in T-s coordinates; Definition of Isentropic efficiency for compressors, turbines and nozzlesThermodynamic cycles – Basic Rankine cycle; Basic Brayton cycle; Basic vapor compression cycle

Text Books:

Fundamentals of Engineering Thermodynamics, Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner and Margaret B. Bailey, Wiley, 7th edition