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In this work, we will seek to model and optimize the energy efficiency of the distillation column of petroleum fractions, especially the gasoline stabilization column to get a better use of energy, increased yield and reduced costs of operation. The calculation of the stabilization column was performed by using Soave-Redlich-Kong (SRK) thermodynamic model, with the help of CHEMSEP software. A technical...
The universal black box analysis model of oil depot equipment and grey box analysis model of total system are set up by applying three-box model theory of thermodynamics. On the basis of energy consumption analysis models and energy balance equations, the relevant energy consumption criteria are put forward. In accordance with production parameters of a certain oil depot in Daqing Oilfield, the evaluation...
Considered the effect of temperature on the main bearing, the temperature distributions of journal, bearing and lubricant were calculated, and the thermo hydrodynamic performances of the main bearing were analyzed by solving generalized Reynolds equation, energy equation and solid heat conduction equation, etc. The results show that the bearing has obvious effect on the temperature of lubricating...
The oil displacement mechanism in steam injection obtained from the indoor simulation experiments is analyzed, namely some thermal-hydraulic-mechanics-chemical coupling relation in oil reservoir porous media. The phenomenological equation for transfer process of multi-field coupling deduced from the non-equilibrium thermodynamics is simple in form and rich in connotation. The driving force of oil...
The kinetics and thermodynamics characteristics of Cd(II) and Zn(II) adsorption onto fly ash of a oil shale-fired power plant was investigated by using batch adsorption method. The results showed that Langmuir and Freundlich adsorption isotherms were applicable to the adsorption process, while Freundlich equation is more applicable. The mechanistic steps of the adsorption process was studied through...
Oil temperature control in a large hydraulic system is dealt with using the fuzzy logic control algorithm. Mathematic model of the control system characterized by large time delay is created based on law of thermodynamics. A self-tuning-parameter fuzzy PID controller is designed to regulate the cooling water flow rate through the triple proportional valve in order to control the oil temperature. The...
Controlling engine coolant and oil temperatures to desired values is critical to effective engine calibration on a dynamometer. Because of the large time constants associated with thermodynamic systems, the slow response of coolant and oil temperature often represents a bottleneck in improving engine mapping and calibration efficiency. Nonlinearities in component characteristics, together with varying...
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