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您的检索式：作者名="Penglei Ge"
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| 1 | Multi-objective optimization for membrane reactor for steam methane reforming heated by molten salt显示文摘A membrane reactor for steam methane reforming heated by molten salt(MS-SMRMR)is studied based on finite time thermodynamics for decreasing carbon emissions and improving hydrogen production rate(HPR).Effects of flow directions of sweep gas and molten salt on MS-SMRMR are researched.Profiles of temperatures,HPR,and local entropy generation rates(EGRs)of MS-SMRMR are analyzed.Hybrid particle swarm optimization algorithm is utilized to obtain the minimum of specific EGR(SEGR),ratio of EGR to HPR.Multi-objective optimization about HPR maximization and EGR minimization is performed by utilizing NSGA-II.The EGR caused by the mass transfer process is the largest among all irreversible processes in the MS-SMRMR.The membrane length should be slightly shorter than the reactor length when the flow direction of sweep gas is different from that of reaction mixture.When flow directions of molten salt and sweep gas are opposite to that of reaction mixture,SEGR is the smallest.Compared with SEGR calculated by utilizing initial parameters,SEGRs after primary,twice and triple optimizations reduce by 1.2%,5.5%and 5.7%,respectively.SEGR can be further decreased by adjusting other operating parameters.Pareto front provides many optimization results,and it contains SEGR minimization.In Pareto front,an optimum decision point is obtained based on decision-making of TOPSIS,and its EGR and HPR,respectively,increase by 7.12%and13.24%,compared with those obtained by using initial parameters.The results have certain theoretical guiding significance for optimization designs of MS-SMRMR. | CHEN LinGen LI PengLei XIA ShaoJun KONG Rui GE YanLin | 2022 | Science China(Technological Sciences)2022，65，6： | 2 |
| 2 | Total entropy generation rate minimization configuration of a membrane reactor of methanol synthesis via carbon dioxide hydrogenation显示文摘The total entropy generation rate,internal exergy loss and exergy efficiency of the membrane reactor of methanol synthesis via carbon dioxide hydrogenation are compared,and the results show that the total entropy generation rate minimization is equivalent to the internal exergy loss minimization and the exergy efficiency maximization under the fixed inlet exergy.Therefore,this paper optimizes the membrane reactor with total entropy generation rate minimization as an optimization objective under a fixed methanol production rate.The optimal temperatures curves of exterior walls for three optimal membrane reactors with different boundary conditions are obtained by using optimal control theory and nonlinear programming.The influences of other geometric and operating parameters on optimization results of optimal membrane reactors are analyzed.The results indicate that when inlet temperatures of the reaction mixture and mixture in the permeable tube are unfixed,the optimizing curve of exterior wall temperature makes the total entropy generation rate of membrane reactor reduce by 12.39%compared with the total entropy generation rate of a reference membrane reactor with a linear exterior wall temperature.Decreasing the inlet molar flow rate of sweep gas and gas hourly space velocity and increasing inlet pressure of reaction mixture,the inlet pressure of mixture in the permeable tube and heat transfer coefficients are favorable for decreasing the total entropy generation rate in the membrane reactor.As the porosity of catalyst bed and reactor length increases,the minimum total entropy generation rate decreases first and then increases.From the perspective of engineering application,this paper establishes two membrane reactors(membrane reactor heated by three-stage furnaces of the same length and membrane reactor heated by threestage furnaces of different lengths),respectively.The minimum total entropy generation rates of the two reactors are reduced by11.67%and 11.79%compared with the total entropy generation rate in the reference membrane reactor,respectively.The obtained results are beneficial to the optimal design of energy-efficient membrane reactors. | LI PengLei CHEN LinGen XIA ShaoJun KONG Rui GE YanLin | 2022 | Science China(Technological Sciences)2022，65，3： | 2 |
| 3 | Surgery is the means of treatment,but high-quality survival is the ultimate goal显示文摘Liver resection is the most effective treatment for primary liver cancer or colorectal liver metastasis(CRLM).Systemic chemotherapy,targeted therapy,immunotherapy,and local treatments are selectively performed to improve long-term survival.However,most patients have irresectable tumors at the time of diagnosis.One of the main factors affecting resection is insufficient postoperative future liver remnant(FLR)(1).To address this issue,various methods have been proposed to promote the hyperplasia of FLRs.Portal vein embolization(PVE),proposed by Makuuchi et al.(2)in 1990,involves the embolization of the portal vein on the tumor side via interventional methods to increase blood inflow to the contralateral portal vein.A hepatectomy of the affected side can then be performed after the development of sufficient FLR hyperplasia. | Penglei Ge Yang Wu | 2022 | Hepatobiliary Surgery and Nutrition2022，11，2： | 1 |
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