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BASIC HEAT TRANSFER AND SOME APPLICATIONS IN …

1 BASIC heat TRANSFER AND some APPLICATIONS IN POLYMER PROCESSING (A version of this was published as a book chapter in Plastics Technician s Toolbox, Volume 2, Pages 21-33, SPE 2002) John Vlachopoulos and David Strutt heat TRANSFER is a branch of engineering science which seeks to determine the rate of energy TRANSFER between bodies as a result of temperature differences. The concept of rate is the BASIC difference between heat TRANSFER and thermodynamics. Thermodynamics deals with systems in equilibrium and is concerned with the amount of heat required to change a system from one state to another.

Heat of reaction is the amount of heat involved in a chemical reaction (added or removed). All polymerization reactions (production of polymers) are exothermic, i.e. they involve liberation of heat. The Second Law of Thermodynamics relates to the direction in …

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