Abstract
AbstractBased on the thermodynamic first law and second law, developed the energy and exergy calculation method for all the energy analysis related process streams, utilities and heat dissipation; discussed the calculation of energy and exergy of process thermal effect including process stream sensible heat, phase change latent heat, reaction heat effect, mixed heat effect, etc. According to petroleum enthalpy and its fitting correction, developed a calculation method for the liquid phase and vapor phase of petroleum and its fractions at different reference phases, make the oil refining, oil & gas industry exergy balance, and analysis a simple and effective; developed energy and exergy calculation method of light hydrocarbon and its mixtures, including calculation of enthalpy, entropy, and exergy of ideal gas hydrocarbon and its mixture; this chapter also provides energy and exergy calculation method for utility streams, and heat dissipation measuring and calculation with a simple and more accurate method of convection and radiation combined heat transfer coefficient. The petrochemical process involves many process streams and utilities, and the calculation of its energy and exergy is the basis of energy analysis.KeywordsEnergy calculationExergy calculationThermal effectPetroleum exergyStream exergyHeat dissipation
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