# Thread: Engineering thermodynamics , full notes, E-Book, All units

### INTRODUCTION TO TRANSFER OF HEAT AND MASS TO THE BASE METAL IN GAS-METAL ARC WELDING

Heat and mass transfer in arc welding is normally studied from the standpoint of the weld pool and heat affected zone (HAZ). Due to its high productivity, the GMAW process has been the predominant welding method. The welding quality depends on various parameters, such as welding current; electrode feed rate, travel speed, and shielding gas. Read this topic
1. ## Engineering thermodynamics , full notes, E-Book, All units

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faadoos this is the thread for engineering thermodynamics which include all the units and topics regarding the subjects................ .... enjoy

SYLLABUS:

UNIT- I: BASIC CONCEPT AND FIRST LAW
Basic concepts - concept of continuum, macroscopic approach, thermodynamic systems -
closed, open and isolated. Property, state, path and process, quasi-static process, work, modes
of work, Zeroth law of thermodynamics – concept of temperature and heat. Concept of ideal and
real gases. First law of thermodynamics – application to closed and open systems, internal
energy, specific heat capacities, enthalpy, steady flow process with reference to various thermal
equipments.

UNIT-II: SECOND LAW, ENTROPY AND AVAILABILITY

Second law of thermodynamics – Kelvin’s and Clausius statements of second law. Reversibility
and irreversibility. Carnot cycle, reversed carnot cycle, efficiency, COP. Thermodynamic
temperature scale, Clausius inequality, concept of entropy, entropy of ideal gas, principle of
increase of entropy – Carnot theorem, absolute entropy, availability.

UNIT-III. PROPERTIES OF PURE SUBSTANCE AND STEAM POWER CYCLE

Properties of pure substances – Thermodynamic properties of pure substances in solid, liquid
and vapour phases, phase rule, P-V, P-T, T-V, T-S, H-S diagrams, PVT surfaces,
thermodynamic properties of steam. Calculations of work done and heat transfer in non-flow and
flow processes. Standard Rankine cycle, Reheat and regenerative cycle.

UNIT-IV IDEAL & REAL GASES AND THERMO DYNAMIC RELATIONS

Gas mixtures – Properties of ideal and real gases, equation of state, Avagadro’s law, Vander
Waal’s equation of states, compressibility, compressibility chart. Dalton’s law of partial pressure,
Exact differentials, T-D, relations, Maxwell relations, Clausius Clapeyron equations, Joule
Thomson Coefficient.

UNIT-V PSYCHROMETRY

Psychrometry and psychrometric charts, property calculations of air vapour mixtures.
Psychrometric process – Sensible heat exchange processes. Latent heat exchange processes.

2. ## Re: Engineering thermodynamics , full notes, E-Book, All units

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5. ## Re: Engineering thermodynamics , full notes, E-Book, All units

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12. ## Re: Engineering thermodynamics , full notes, E-Book, All units

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