Biofuels are indeed clean, green, renewable and sustainable, which have a great effect on alleviating social energy crisis as they can be extracted from various kinds of biomass. According to the crucial enzymes invol...Biofuels are indeed clean, green, renewable and sustainable, which have a great effect on alleviating social energy crisis as they can be extracted from various kinds of biomass. According to the crucial enzymes involved in the synthesis of sucrose, starch and lipid, various combinations of crucial enzymes were used to retrieval in NCBI （the National Center for Biotechnology Information） database to screen out species with high similarities. Moreover, comprehensive evaluation formulas were designed to excavate potential biofuel plants, which considered several parameters including the homology index, availability rate, distribution area in China, price index and function index. Finally, tens of superior plant species, for example, Panicum virgatum, Zeal luxuriant and Brassica napus, are suggested to be the potentials in future biofuels productions. These plants have the characteristics of wide distribution, high yield, and low cost in production, and they are useful for environmental protection as well as sources of non-crop biomass fuels in China. The results provide a theoretical basis for further study and exploitation of biofuels.展开更多
In this paper, a novel approach termed process goose queue (PGQ) is suggested to deal with real-time optimization (RTO) of chemical plants. Taking advantage of the ad-hoc structure of PGQ which imitates biologic natur...In this paper, a novel approach termed process goose queue (PGQ) is suggested to deal with real-time optimization (RTO) of chemical plants. Taking advantage of the ad-hoc structure of PGQ which imitates biologic nature of flying wild geese, a chemical plant optimization problem can be re-formulated as a combination of a multi-layer PGQ and a PGQ-Objective according to the relationship among process variables involved in the objective and constraints. Subsequently, chemical plant RTO solutions are converted into coordination issues among PGQs which could be dealt with in a novel way. Accordingly, theoretical definitions, adjustment rule and implementing procedures associated with the approach are explicitly introduced together with corresponding enabling algorithms. Finally, an exemplary chemical plant is employed to demonstrate the feasibility and validity of the contribution.展开更多
The industrial biomass combustor of Halla food factory in Thailand was designed for drying tuna fish product. The purpose of this paper needed to present the design of a factory combustor for producing heat in the dry...The industrial biomass combustor of Halla food factory in Thailand was designed for drying tuna fish product. The purpose of this paper needed to present the design of a factory combustor for producing heat in the drying process by thermal energy from biomass fuel combustion to reduce the investment cost. A drying chamber was made from four concrete walls in the rectangular volume of 4.7 × 4.7 × 2.5 m3 for drying tuna fishes that sliced to small pieces of around 2,680 kg fresh tuna. The hot air tube in the combustor was used for driving hot air to dry fishes in the drying chamber. Heat from acacia wood burning in the combustor with the consumption rate of 50.1 kg/h was transferred by the hot air. The design result was calculated for thermal energy and the efficiency of around 200 kW, and 32%, respectively in the case of 0.62 m3/s hot air flow rate that circulation between the combustor and the drying chamber. The experimental result shows that the moister content of 78.9%wb was decreased to around 13.8%wb in 5 days without petroleum fuel. The drying temperature was controlled at 70℃ continuously for reducing hard containing, and the closed loop tube design for the less of BaP （benzo （a） pyrene） from combustion smoking of the drying industrial process.展开更多
基金Acknowledgments This work was supported by National Natural Science Foundation of China （No. 91130009）. The study sponsors had no influence in the study design, data collection, analysis or interpretation, the writing of the paper and the decision to submit this work for publication.
文摘Biofuels are indeed clean, green, renewable and sustainable, which have a great effect on alleviating social energy crisis as they can be extracted from various kinds of biomass. According to the crucial enzymes involved in the synthesis of sucrose, starch and lipid, various combinations of crucial enzymes were used to retrieval in NCBI （the National Center for Biotechnology Information） database to screen out species with high similarities. Moreover, comprehensive evaluation formulas were designed to excavate potential biofuel plants, which considered several parameters including the homology index, availability rate, distribution area in China, price index and function index. Finally, tens of superior plant species, for example, Panicum virgatum, Zeal luxuriant and Brassica napus, are suggested to be the potentials in future biofuels productions. These plants have the characteristics of wide distribution, high yield, and low cost in production, and they are useful for environmental protection as well as sources of non-crop biomass fuels in China. The results provide a theoretical basis for further study and exploitation of biofuels.
文摘In this paper, a novel approach termed process goose queue (PGQ) is suggested to deal with real-time optimization (RTO) of chemical plants. Taking advantage of the ad-hoc structure of PGQ which imitates biologic nature of flying wild geese, a chemical plant optimization problem can be re-formulated as a combination of a multi-layer PGQ and a PGQ-Objective according to the relationship among process variables involved in the objective and constraints. Subsequently, chemical plant RTO solutions are converted into coordination issues among PGQs which could be dealt with in a novel way. Accordingly, theoretical definitions, adjustment rule and implementing procedures associated with the approach are explicitly introduced together with corresponding enabling algorithms. Finally, an exemplary chemical plant is employed to demonstrate the feasibility and validity of the contribution.
文摘The industrial biomass combustor of Halla food factory in Thailand was designed for drying tuna fish product. The purpose of this paper needed to present the design of a factory combustor for producing heat in the drying process by thermal energy from biomass fuel combustion to reduce the investment cost. A drying chamber was made from four concrete walls in the rectangular volume of 4.7 × 4.7 × 2.5 m3 for drying tuna fishes that sliced to small pieces of around 2,680 kg fresh tuna. The hot air tube in the combustor was used for driving hot air to dry fishes in the drying chamber. Heat from acacia wood burning in the combustor with the consumption rate of 50.1 kg/h was transferred by the hot air. The design result was calculated for thermal energy and the efficiency of around 200 kW, and 32%, respectively in the case of 0.62 m3/s hot air flow rate that circulation between the combustor and the drying chamber. The experimental result shows that the moister content of 78.9%wb was decreased to around 13.8%wb in 5 days without petroleum fuel. The drying temperature was controlled at 70℃ continuously for reducing hard containing, and the closed loop tube design for the less of BaP （benzo （a） pyrene） from combustion smoking of the drying industrial process.
