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| 1 | Active power regulation of wind power systems through demand response显示文摘With the specific characteristics of low-carbon intensity and economy,wind power has been widely promoted around the world.Due to the variable and intermittent nature of wind power production,the system has to frequently redispatch generators in order to ensure the effective use of wind power whilst maintaining system security.In this way,traditional generation costs are increased and the social benefit of wind power decreases indirectly.In this paper,a new regulation strategy based on power flow tracing was proposed,taking advantage of a comfort-constrained demand response strategy to follow the fluctuations of wind farm output,with the remaining imbalance of active power compensated by traditional generators.Examples showed that compared with conventional regulation,demand response could reduce the gross operating costs of the system,and the rapid response could help maintaining system stability in case of contingency.The strategy in this paper also applies to other large-scale integration problems associated with renewable energy resources which display short-term production variability. | MIAO WeiWei JIA HongJie WANG Dan PARKINSON Simon CRAWFORD Curran DJILALI Ned | 2012 | Science China(Technological Sciences)2012，55，6： | 24 |
| 2 | A Demand Response System for Wind Power Integration: Greenhouse Gas Mitigation and Reduction of Generator Cycling显示文摘A smart grid power system for a small region consisting of 1,000 residential homes with electric heating appliances from the demand side,and a generic generation mix of nuclear,hydro,coal,gas and oil-based generators representing the supply side,is investigated using agent-based simulations.The simulation includes a transactive load control in a real-time pricing electricity market.The study investigates the impacts of adding wind power and demand response(DR)on both greenhouse gas(GHG)emissions and generator cycling requirements.The results demonstrate and quantify the effectiveness of DR in mitigating the variability of renewable generation.The extent to which greenhouse gas emissions can be mitigated is found to be highly dependent on the mix of generators and their operational capacity factors.It is expected that the effects of demand response on electricity use can reduce dependency on fossil fuel-based electricity generation.However,the anticipated mitigation of GHG emissions is found to dependent on the number and efficiency of fossil fuel generators,and especially on the capacity factor at which they operate.Therefore,if a generator(the marginal seller)is forced to use less efficient fossil fuel power generation schemes,it will result in higher GHG emissions.The simulations show that DR can yield a small reduction in GHG emissions,but also lead to a smaller increase in emissions in circumstances when,for example,a generator(the marginal seller)is forced to use less efficient fossil fuel power generation schemes.Nonetheless,DR is shown to enhance overall system operation,particularly by facilitating increased penetration of variable renewable electricity generation without jeopardizing grid operation reliability.DR reduces the amount of generator cycling by an increased order of magnitude,thereby reducing wear and tear,improving generator efficiency,and avoiding the need for additional operating reserves.The effectiveness of DR for these uses depends on the participation of responsive loads,and this study highlights the need to maintain a certain degree of diversity of loads to ensure they can provide adequate responsiveness to the changing grid conditions. | Torsten Broeer Francis K.Tuffner Anaissia Franca Nedjib Djilali | 2018 | CSEE Journal of Power and Energy Systems2018，4，2： | 3 |
| 3 | Experimental and numerical investigation of a solar eductorassisted low-pressure water desalination system显示文摘Greenhouse solar-energy driven desalination technology is potentially well suited for supplying water and small scale irrigation in remote and/or rural areas, and for avoiding over-exploitation of available water resources.The efficiency and productivity of these systems are however low, in part because the heat of evaporation has to be transferred as waste heat to ambient air during condensation. In order to maximize energy regeneration during condensation we propose an educator based system that lowers the evaporation process temperature by reducing pressure. The feasibility of the educator assisted passive solar desalination system is investigated using a detailed computational fluid dynamics analysis complemented by experiments. The study focuses in particular on the ability of the new design to lower the required evaporation temperature and thereby reduce the energy intensity of the process. Two configurations, with open and closed educator, are investigated and a detailed analysis of the thermofluid processes is presented. The configuration with a closed educator installed outside the evaporation chamber shows very promising performance. The proposed system can maintain the maximum temperature and pressure in the evaporation chamber below the desirable temperature and pressure thresholds(30 °C and 5 k Pa). The analysis and experimental data also show it is possible to further reduce energy requirements by reducing the motive water flow rates. | Mehran Ahmadi Poovanna Thimmaiah Majid Bahrami Khaled Sedraoui Hani H.Sait Ned Djilali | 2016 | Science Bulletin2016，61，12： | 2 |
| 4 | Materials for energy conversion显示文摘Advances in material science and engineering are critical to the development of economically viable technologies to address some of the grand socio-economic challenges of the twenty first century.Materials are at the core | Ned Djilali | 2016 | Science Bulletin2016，61，8： | 2 |
| 5 | Spatiotemporal patterns induced by cross-diffusion in predator prey model with prey herd shape effect显示文摘In this paper,we investigate a predator-prey model with herd behavior and cross-diffusion subject to the zero flux boundary conditions.First,the temporal behavior of the model has been investigated,where Hopf bifurcation has been obtained.Then,by analyzing the characteristic equation it has been proved that the cross-diffusion generate a complex dynamics such as Hopf bifurcation,Turing instability,even Turing-Hopf bifurcation.Further,the impact of the prey herd shape on the spatiotemporal patterns has been discussed.Furthermore,by computing and analyzing the normal form associated with the Turing-Hopf bifurcation point,the spatiotemporal dynamics near the Turing-Hopf bifurcation point has been discussed and allso justified by some numerical simulations. | Salih Djilali | 2020 | International Journal of Biomathematics2020，13，4： | 2 |
| 6 | Influence of heat transfer on gas and water transport in fuel cells 显示文摘 | DJILALI N LU D M | 2002 | Inter J Therm Sci2002，41，： | 1 |
| 7 | Three-dimensional computational analysis of transport phenomena in a PEM fuel cell显示文摘 | BERNING T LU D M DJILALI N | 2002 | Power Sources2002，106，： | 1 |
| 8 | Influence of heat transfer on gas and water transport in fuel cells显示文摘 | DJILALI N LU D | 2003 | Int J Therm Sci2003，41，： | 1 |
| 9 | Three-dimensional computational analysis of transport phenomena in a PEM fuel cell 显示文摘 | T Beming D M Lu N Djilali | 2002 | Power Sources (S0378-7753)2002，106，1： | 1 |
| 10 | Three- dimensional computational analysis of transport phenomena in a PEM fuel cell 显示文摘 | BERNING T LU D M DJILALI N | 2002 | Journal of Power Sources2002，106，1： | 1 |
| 11 | Fluid mechanics and mass transport in centrifugal membrane separation显示文摘 | Pharoah J G Djilali N Vickers G W 2000 | 2000 | J Membr Sci2000，176，： | 1 |
| 12 | Three-dimensional Computational Analysis of Transport Phenomena in a PEM Fuel Cell显示文摘 | Berning T Lu D M Djilali N | 2002 | Journal of Power Sources2002，106，： | 1 |
| 13 | Three-dimensional computational analysis of transport phenomena in a PEM fuel cell-a parametic study显示文摘 | BERNING T DJILALI N | 2003 | Journal of Power Sources2003，124，： | 1 |
| 14 | Three-dimensional computational analysis of transport phenomena in a PEM fuel cell-a parametic study显示文摘 | Beming T Djilali N | 2003 | Journal of Power sources2003，124，： | 1 |
| 15 | Three-dimensional analysis of transport phenomena in a PEM fuel cell 显示文摘 | BERNING T LU D M DJILALI N | 2002 | Power Sources2002，106，： | 1 |
| 16 | An experimental assessment of centrifugal membrane separation using spiral wound RO membrane elements显示文摘 | Bergena A Djilali N Fyles T M | 2003 | Desalination2003，154，3： | 1 |
| 17 | Three-Dimensional Computational Analysis of Transport Phenomena in a PEM Fuel Cell-a Parametric Study显示文摘 | Berning T Djilali N | | 0，，02： | 1 |
| 18 | Dynamic behaviour of liquid wateremerging from a GDL pore into a PEMFC gas flow channel显示文摘 | Zhu X’ Sui P C Djilali N | 2007 | Journal of Power Sources2007，172，1： | 1 |
| 19 | Computing on largescale distributed systems: XtremWeb architecture, programming models, security, tests and convergence with grid 显示文摘 | CAPPELLO F DJILALI S FEDAK G | 2005 | Future Generation Computer Systems2005，21，3： | 1 |
| 20 | Three-dimensional Computational Analysis of Transport Phenomena in a PEM Fuel Cell显示文摘 | BERNING T LU D M DJILALI N | 2002 | J Power Sources2002，106，12： | 1 |
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