Author
Fengrui Sun
Other affiliations: University of Texas at Austin
Bio: Fengrui Sun is an academic researcher from China University of Petroleum. The author has contributed to research in topics: Superheated steam & Heat transfer. The author has an hindex of 31, co-authored 78 publications receiving 2377 citations. Previous affiliations of Fengrui Sun include University of Texas at Austin.
Papers
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TL;DR: In this article, a model is proposed for predicting thermo-physical properties of superheated steam (SHS) in SHS injection wells and for estimating wellbore heat efficiency.
184 citations
TL;DR: In this paper, water vapor adsorption on montmorillonite (Mt), kaolinite (Kaol) and illite (Il) were performed to investigate the behaviors of water adaption on shale clay, and the effect of adsorbed water on pore structure characteristics, such as apparent pore size distribution (APSD), N2 BET specific surface area (N2-BET SSA) and pore volume (PV), were investigated.
168 citations
TL;DR: In this paper, a series of works are conducted to study the heat and mass transfer characteristics of superheated steam and non-condensing gases (SNG) flow in horizontal wellbores with multi-point injection technique.
156 citations
TL;DR: In this paper, the authors employed the Beskok's models to characterize the bulk-gas transport mechanisms through circular nanotubes or slit nanopores with arbitrary aspect ratio, respectively.
140 citations
TL;DR: In this paper, a model is developed for simulating CO2 flow in the descending, horizontal and ascending sections of the geothermal well, and two new concepts of critical position and effective distance are proposed.
122 citations
Cited by
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TL;DR: The experiment results show that the proposed ICMPACO algorithm can effectively obtain the best optimization value in solving TSP and effectively solve the gate assignment problem, obtain better assignment result, and it takes on better optimization ability and stability.
Abstract: In this paper, an improved ant colony optimization (ICMPACO) algorithm based on the multi-population strategy, co-evolution mechanism, pheromone updating strategy, and pheromone diffusion mechanism is proposed to balance the convergence speed and solution diversity, and improve the optimization performance in solving the large-scale optimization problem. In the proposed ICMPACO algorithm, the optimization problem is divided into several sub-problems and the ants in the population are divided into elite ants and common ants in order to improve the convergence rate, and avoid to fall into the local optimum value. The pheromone updating strategy is used to improve optimization ability. The pheromone diffusion mechanism is used to make the pheromone released by ants at a certain point, which gradually affects a certain range of adjacent regions. The co-evolution mechanism is used to interchange information among different sub-populations in order to implement information sharing. In order to verify the optimization performance of the ICMPACO algorithm, the traveling salesmen problem (TSP) and the actual gate assignment problem are selected here. The experiment results show that the proposed ICMPACO algorithm can effectively obtain the best optimization value in solving TSP and effectively solve the gate assignment problem, obtain better assignment result, and it takes on better optimization ability and stability.
421 citations
TL;DR: In this article, the variation of energy storage efficiency, Finite element method has been employed to show the variation in energy storage energy efficiency, important selected parameters are nanofluid concentration, angle of V shaped fin, copper oxide particle size and length of fin.
407 citations
TL;DR: In this article, the impact of using fins and nano-sized materials on performance of discharging system was investigated, and the mathematical model has been offered in the form of PDE's, which were solved using Galerkin FEM.
336 citations
TL;DR: In this paper, a combined turbulator was proposed to achieve good thermal performance, in which the height of turbulator (b) has been selected and its variation as well as Reynolds number was demonstrated in outputs.
259 citations
TL;DR: In this article, a double twisted tape was inserted in a H2O pipe to help its conductivity and a finite volume method was used to describe the flow and energy balance.
250 citations