The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform

Hongguang Jin - One of the best experts on this subject based on the ideXlab platform.

  • Solar-clean fuel Distributed Energy System with solar thermochemistry and chemical recuperation
    Applied Energy, 2018
    Co-Authors: Taixiu Liu, Qibin Liu, Jing Lei, Jun Sui, Hongguang Jin
    Abstract:

    Abstract A new solar-hybrid fuel-fired Distributed Energy System incorporating thermochemical reaction driven by mid- and low-temperature solar heat and exhaust heat is proposed, for increased solar Energy utilization and exhaust heat recovery efficiency. Solar Energy is upgraded to syngas (H2 and CO) chemical Energy via the solar thermochemical process of the methanol decomposition reaction, and the syngas drives the internal combustion engine to output power. Some of the exhaust heat is stored and drives the methanol decomposition reaction to supplement the syngas via the chemical recuperation process, enhancing the exergy efficiency of the exhaust heat recovery. The overall Energy efficiency and net efficiency of solar Energy to electricity conversion are improved by integrating solar thermochemistry and chemical recuperation, and excellent off-design thermodynamic performance under varying user loads and solar irradiation levels is achieved. The overall Energy efficiency, exergy efficiency, and net solar-Energy-to-electricity efficiency reach 80.55%, 42.18% and 24.66%, respectively. These research findings indicate that the proposed System embodies an efficient and stable approach towards utilization of solar Energy and clean fuel in Distributed Energy Systems.

  • performance investigation of a new solar hybrid fuel fired Distributed Energy System integrated with a thermochemical process
    Energy Procedia, 2017
    Co-Authors: Taixiu Liu, Qibin Liu, Jun Sui, Xiaohe Wang, Hongguang Jin
    Abstract:

    Abstract A new solar-hybrid fuel-fired Distributed Energy System integrated with a thermochemical reaction driven by mid-and-low solar thermal Energy and exhaust heat is proposed. The methanol is decomposed into the syngas (H 2 and CO) through the solar thermochemical receivers/reactors, and the syngas drives an internal combustion engine to output power. Then a part of the exhaust heat is recovered and drives the methanol decomposition reaction to supply the syngas via the chemical recuperation process. With the combination of the solar thermochemical and chemical recuperation process, the solar Energy and exhaust heat is utilized effectively. The thermodynamic performances of the proposed System are investigated, and the overall Energy efficiency and net solar to electricity efficiency on the design condition reaches to 80.55% and 24.66%, respectively. The promising results provide an efficient and stable utilization approach of the solar Energy and clean fuel in Distributed Energy Systems.

  • performance of a combined cooling heating and power System with mid and low temperature solar thermal Energy and methanol decomposition integration
    Energy Conversion and Management, 2015
    Co-Authors: Qibin Liu, Jing Lei, Hongguang Jin
    Abstract:

    Abstract In this paper, a new Distributed Energy System that integrates the mid-and-low temperature solar Energy thermochemical process and the methanol decomposition is proposed. Through the solar Energy receiver/reactor, the Energy collected by a parabolic trough concentrator, at 200–300 °C, is used to drive the decomposition reaction of the methanol into the synthesis gas, and thus the solar thermal Energy is converted to the chemical Energy. The chemical Energy of the synthesis gas released in the combustion chamber of a micro gas turbine is used to drive the combined cooling heating and power Systems. Energy analysis and exergy analysis of the System are implemented to evaluate the feasibility of the proposed System. Under the considerations of the changes of the solar irradiation intensity, the off-design performances of the micro turbine and the variations of the load, the design and off-design thermodynamic performances of the System and the characteristics of the chemical Energy storage are numerically studied. Numerical results indicate that the primary Energy ratio of the System is 76.40%, and the net solar-electricity conversion rate reaches 22.56%, which is higher than exiting large-scale solar thermal power plants. Owing to the introduction of a the solar thermochemical Energy storage in the proposed System, the power generation efficiency is insensitive to the variations of the solar radiation, and thus an efficient and stable utilization approach of the solar thermal Energy is achieved at all work condition.

Qibin Liu - One of the best experts on this subject based on the ideXlab platform.

  • application of a mid low temperature solar thermochemical technology in the Distributed Energy System with cooling heating and power production
    Applied Energy, 2019
    Co-Authors: Qibin Liu, Zhang Bai, Liang Gong, Jing Lei
    Abstract:

    Abstract A new solar-assisted cooling, heating and power (CCHP) System is developed for improving the Energy conversion efficiency in this work. Solar thermal Energy (250–350 °C) collected by a parabolic trough solar collector is used to drive the thermochemical reaction of methanol decomposition, then the generated solar fuel in the form of syngas is fed into an internal combustion engine (ICE) to generate electricity. The high-temperature exhaust gas released by the ICE is used to produce cooling and heating energies via a double-effect LiBr-H2O absorption refrigerator and a heat exchanger. Solar Energy is converted to chemical Energy in the form of syngas, the distinct advantages of Energy cascade utilization and thermochemical storage can be realized. Numerical simulation results show that in the proposed CCHP System the Energy and exergy efficiencies at the designate condition are 82.0% and 58.72%, respectively. The off-design performances are investigated by deploying the proposed CCHP System to a shopping center building, the annual efficiency and the solar fraction reach 53.6% and 9.81%, respectively. In comparison with the reference solar-assisted CCHP System, the annual methanol consumption of the proposed CCHP System decreases to 874.31 tons with the fuel saving ratio of 4.56% and less CO2 emission. This novel solar CCHP System presents a promising cost-effective performance and the System life cycle cost saving ratio reaches 2.84%. The research findings provide an alternative route towards efficiently utilizing solar Energy.

  • Solar-clean fuel Distributed Energy System with solar thermochemistry and chemical recuperation
    Applied Energy, 2018
    Co-Authors: Taixiu Liu, Qibin Liu, Jing Lei, Jun Sui, Hongguang Jin
    Abstract:

    Abstract A new solar-hybrid fuel-fired Distributed Energy System incorporating thermochemical reaction driven by mid- and low-temperature solar heat and exhaust heat is proposed, for increased solar Energy utilization and exhaust heat recovery efficiency. Solar Energy is upgraded to syngas (H2 and CO) chemical Energy via the solar thermochemical process of the methanol decomposition reaction, and the syngas drives the internal combustion engine to output power. Some of the exhaust heat is stored and drives the methanol decomposition reaction to supplement the syngas via the chemical recuperation process, enhancing the exergy efficiency of the exhaust heat recovery. The overall Energy efficiency and net efficiency of solar Energy to electricity conversion are improved by integrating solar thermochemistry and chemical recuperation, and excellent off-design thermodynamic performance under varying user loads and solar irradiation levels is achieved. The overall Energy efficiency, exergy efficiency, and net solar-Energy-to-electricity efficiency reach 80.55%, 42.18% and 24.66%, respectively. These research findings indicate that the proposed System embodies an efficient and stable approach towards utilization of solar Energy and clean fuel in Distributed Energy Systems.

  • performance investigation of a new solar hybrid fuel fired Distributed Energy System integrated with a thermochemical process
    Energy Procedia, 2017
    Co-Authors: Taixiu Liu, Qibin Liu, Jun Sui, Xiaohe Wang, Hongguang Jin
    Abstract:

    Abstract A new solar-hybrid fuel-fired Distributed Energy System integrated with a thermochemical reaction driven by mid-and-low solar thermal Energy and exhaust heat is proposed. The methanol is decomposed into the syngas (H 2 and CO) through the solar thermochemical receivers/reactors, and the syngas drives an internal combustion engine to output power. Then a part of the exhaust heat is recovered and drives the methanol decomposition reaction to supply the syngas via the chemical recuperation process. With the combination of the solar thermochemical and chemical recuperation process, the solar Energy and exhaust heat is utilized effectively. The thermodynamic performances of the proposed System are investigated, and the overall Energy efficiency and net solar to electricity efficiency on the design condition reaches to 80.55% and 24.66%, respectively. The promising results provide an efficient and stable utilization approach of the solar Energy and clean fuel in Distributed Energy Systems.

  • performance of a combined cooling heating and power System with mid and low temperature solar thermal Energy and methanol decomposition integration
    Energy Conversion and Management, 2015
    Co-Authors: Qibin Liu, Jing Lei, Hongguang Jin
    Abstract:

    Abstract In this paper, a new Distributed Energy System that integrates the mid-and-low temperature solar Energy thermochemical process and the methanol decomposition is proposed. Through the solar Energy receiver/reactor, the Energy collected by a parabolic trough concentrator, at 200–300 °C, is used to drive the decomposition reaction of the methanol into the synthesis gas, and thus the solar thermal Energy is converted to the chemical Energy. The chemical Energy of the synthesis gas released in the combustion chamber of a micro gas turbine is used to drive the combined cooling heating and power Systems. Energy analysis and exergy analysis of the System are implemented to evaluate the feasibility of the proposed System. Under the considerations of the changes of the solar irradiation intensity, the off-design performances of the micro turbine and the variations of the load, the design and off-design thermodynamic performances of the System and the characteristics of the chemical Energy storage are numerically studied. Numerical results indicate that the primary Energy ratio of the System is 76.40%, and the net solar-electricity conversion rate reaches 22.56%, which is higher than exiting large-scale solar thermal power plants. Owing to the introduction of a the solar thermochemical Energy storage in the proposed System, the power generation efficiency is insensitive to the variations of the solar radiation, and thus an efficient and stable utilization approach of the solar thermal Energy is achieved at all work condition.

Jing Lei - One of the best experts on this subject based on the ideXlab platform.

  • application of a mid low temperature solar thermochemical technology in the Distributed Energy System with cooling heating and power production
    Applied Energy, 2019
    Co-Authors: Qibin Liu, Zhang Bai, Liang Gong, Jing Lei
    Abstract:

    Abstract A new solar-assisted cooling, heating and power (CCHP) System is developed for improving the Energy conversion efficiency in this work. Solar thermal Energy (250–350 °C) collected by a parabolic trough solar collector is used to drive the thermochemical reaction of methanol decomposition, then the generated solar fuel in the form of syngas is fed into an internal combustion engine (ICE) to generate electricity. The high-temperature exhaust gas released by the ICE is used to produce cooling and heating energies via a double-effect LiBr-H2O absorption refrigerator and a heat exchanger. Solar Energy is converted to chemical Energy in the form of syngas, the distinct advantages of Energy cascade utilization and thermochemical storage can be realized. Numerical simulation results show that in the proposed CCHP System the Energy and exergy efficiencies at the designate condition are 82.0% and 58.72%, respectively. The off-design performances are investigated by deploying the proposed CCHP System to a shopping center building, the annual efficiency and the solar fraction reach 53.6% and 9.81%, respectively. In comparison with the reference solar-assisted CCHP System, the annual methanol consumption of the proposed CCHP System decreases to 874.31 tons with the fuel saving ratio of 4.56% and less CO2 emission. This novel solar CCHP System presents a promising cost-effective performance and the System life cycle cost saving ratio reaches 2.84%. The research findings provide an alternative route towards efficiently utilizing solar Energy.

  • Solar-clean fuel Distributed Energy System with solar thermochemistry and chemical recuperation
    Applied Energy, 2018
    Co-Authors: Taixiu Liu, Qibin Liu, Jing Lei, Jun Sui, Hongguang Jin
    Abstract:

    Abstract A new solar-hybrid fuel-fired Distributed Energy System incorporating thermochemical reaction driven by mid- and low-temperature solar heat and exhaust heat is proposed, for increased solar Energy utilization and exhaust heat recovery efficiency. Solar Energy is upgraded to syngas (H2 and CO) chemical Energy via the solar thermochemical process of the methanol decomposition reaction, and the syngas drives the internal combustion engine to output power. Some of the exhaust heat is stored and drives the methanol decomposition reaction to supplement the syngas via the chemical recuperation process, enhancing the exergy efficiency of the exhaust heat recovery. The overall Energy efficiency and net efficiency of solar Energy to electricity conversion are improved by integrating solar thermochemistry and chemical recuperation, and excellent off-design thermodynamic performance under varying user loads and solar irradiation levels is achieved. The overall Energy efficiency, exergy efficiency, and net solar-Energy-to-electricity efficiency reach 80.55%, 42.18% and 24.66%, respectively. These research findings indicate that the proposed System embodies an efficient and stable approach towards utilization of solar Energy and clean fuel in Distributed Energy Systems.

  • performance of a combined cooling heating and power System with mid and low temperature solar thermal Energy and methanol decomposition integration
    Energy Conversion and Management, 2015
    Co-Authors: Qibin Liu, Jing Lei, Hongguang Jin
    Abstract:

    Abstract In this paper, a new Distributed Energy System that integrates the mid-and-low temperature solar Energy thermochemical process and the methanol decomposition is proposed. Through the solar Energy receiver/reactor, the Energy collected by a parabolic trough concentrator, at 200–300 °C, is used to drive the decomposition reaction of the methanol into the synthesis gas, and thus the solar thermal Energy is converted to the chemical Energy. The chemical Energy of the synthesis gas released in the combustion chamber of a micro gas turbine is used to drive the combined cooling heating and power Systems. Energy analysis and exergy analysis of the System are implemented to evaluate the feasibility of the proposed System. Under the considerations of the changes of the solar irradiation intensity, the off-design performances of the micro turbine and the variations of the load, the design and off-design thermodynamic performances of the System and the characteristics of the chemical Energy storage are numerically studied. Numerical results indicate that the primary Energy ratio of the System is 76.40%, and the net solar-electricity conversion rate reaches 22.56%, which is higher than exiting large-scale solar thermal power plants. Owing to the introduction of a the solar thermochemical Energy storage in the proposed System, the power generation efficiency is insensitive to the variations of the solar radiation, and thus an efficient and stable utilization approach of the solar thermal Energy is achieved at all work condition.

Efstratios N Pistikopoulos - One of the best experts on this subject based on the ideXlab platform.

  • an Energy Systems engineering approach for the design and operation of microgrids in residential applications
    Chemical Engineering Research & Design, 2013
    Co-Authors: Pei Liu, Michael C Georgiadis, Efstratios N Pistikopoulos
    Abstract:

    Abstract A Distributed Energy System refers to an Energy System where Energy production is close to end use, typically relying on small-scale Energy Distributed technologies. It is a multi-input and multi-output Energy System with substantial Energy, economic and environmental benefits. However, Distributed Energy Systems such as micro-grids in residential applications may not be able to produce the potential benefits due to lack of appropriate System configurations and suitable operation strategies. The optimal design, scheduling and control of such a complex System are of great importance towards their successful practical realization in real application studies. This paper presents a short review and an Energy Systems engineering approach to the modeling and optimization of micro-grids for residential applications, offering a clear vision of the latest research advances in this field. Challenges and prospects of the modeling and optimization of such Distributed Energy Systems are also highlighted in this work.

  • a two stage stochastic programming model for the optimal design of Distributed Energy Systems
    Applied Energy, 2013
    Co-Authors: Zhe Zhou, Jianyun Zhang, Zheng Li, Michael C Georgiadis, Efstratios N Pistikopoulos
    Abstract:

    A Distributed Energy System is a multi-input and multi-output Energy System with substantial Energy, economic and environmental benefits. The optimal design of such a complex System under Energy demand and supply uncertainty poses significant challenges in terms of both modelling and corresponding solution strategies. This paper proposes a two-stage stochastic programming model for the optimal design of Distributed Energy Systems. A two-stage decomposition based solution strategy is used to solve the optimization problem with genetic algorithm performing the search on the first stage variables and a Monte Carlo method dealing with uncertainty in the second stage. The model is applied to the planning of a Distributed Energy System in a hotel. Detailed computational results are presented and compared with those generated by a deterministic model. The impacts of demand and supply uncertainty on the optimal design of Distributed Energy Systems are Systematically investigated using proposed modelling framework and solution approach.

Zhang Bai - One of the best experts on this subject based on the ideXlab platform.

  • application of a mid low temperature solar thermochemical technology in the Distributed Energy System with cooling heating and power production
    Applied Energy, 2019
    Co-Authors: Qibin Liu, Zhang Bai, Liang Gong, Jing Lei
    Abstract:

    Abstract A new solar-assisted cooling, heating and power (CCHP) System is developed for improving the Energy conversion efficiency in this work. Solar thermal Energy (250–350 °C) collected by a parabolic trough solar collector is used to drive the thermochemical reaction of methanol decomposition, then the generated solar fuel in the form of syngas is fed into an internal combustion engine (ICE) to generate electricity. The high-temperature exhaust gas released by the ICE is used to produce cooling and heating energies via a double-effect LiBr-H2O absorption refrigerator and a heat exchanger. Solar Energy is converted to chemical Energy in the form of syngas, the distinct advantages of Energy cascade utilization and thermochemical storage can be realized. Numerical simulation results show that in the proposed CCHP System the Energy and exergy efficiencies at the designate condition are 82.0% and 58.72%, respectively. The off-design performances are investigated by deploying the proposed CCHP System to a shopping center building, the annual efficiency and the solar fraction reach 53.6% and 9.81%, respectively. In comparison with the reference solar-assisted CCHP System, the annual methanol consumption of the proposed CCHP System decreases to 874.31 tons with the fuel saving ratio of 4.56% and less CO2 emission. This novel solar CCHP System presents a promising cost-effective performance and the System life cycle cost saving ratio reaches 2.84%. The research findings provide an alternative route towards efficiently utilizing solar Energy.