Energy conversion materials

... spectral energy is distributed in the visible region o About 49% in near IR o About 3% in UV region and rest in far IR region Solar energy conversion devices Methods of tapping solar energy A ... cell is used to convert solar energy into electrical energy Photoelectrosynthesis (PES) cells – In this class of cells, solar energy is converted into chemical energy in the form of f...

Ngày tải lên: 01/12/2015, 22:42

... ELECTROSPUN TITANIUM DIOXIDE NANOSTRUCTURES AND THEIR COMPOSITES WITH CARBON RICH MATERIALS FOR ENERGY CONVERSION AND STORAGE ZHU PEINING (B Eng., Huazhong University of Science and Technology) ... electrical devices Therefore, the topic of renewable energy comes with the dual topic of energy conversion and storage There are mainly two kinds of ba...

Ngày tải lên: 10/09/2015, 09:12

... Fellow of the Engineering Institute of Canada, the Canadian Academy of Engineering, the Canadian Society for Mechanical Engineering, the American Society of Mechanical Engineers and the International ... energy conversion system in Canada involving large-scale integrated hydrogen production using solid fuels International Journal of Hydrogen Energy 201...

Ngày tải lên: 05/09/2013, 14:58

... knowledge base on plasmon- enhanced photovoltaics to convincingly demonstrate that plasmonic effects can also enhance solar energy conversion to fuels The enhancement of solar energy conversion to ... Nanostructuring for Efficient Energy Conversion (CNEEC) at Stanford University, an Energy Frontier Research Center funded by the U.S Department of Energy, Office of Science, Office of...

Ngày tải lên: 18/09/2013, 21:26

... Relative supply rating 8.4 pu 10.4 pu Rating and loss considerations for large scale system The losses and ratings of a large scale electrical conversion system with MERS solution and with a 2-level ... followed by description of experiments on a 50 kW PM generator and theoretical large scale system loss and rating investigations Magnetic Energ...

Ngày tải lên: 15/10/2013, 16:11

... Illustration of generation It is important to note here that the process of electromechanical energy conversion is reversible This means that either electric energy can be converted into mechanical energy, ... internal storages of energy inside the machine The first one is the stored electromagnetic energy, while the second one is the stored mechanical energy Stored mechan...

Ngày tải lên: 23/01/2014, 06:20

... Substituting (1. 2-7)– (1. 2 -10 ) into (1. 2 -1) and (1. 2-2) yields 1 = N1i1 N1i1 N i2 + + Rl1 Rm Rm (1. 2 -12 ) Φ2 = N i2 N i2 N1i1 + + Rl Rm Rm (1. 2 -13 ) Substituting (1. 2 -12 ) and (1. 2 -13 ) into (1. 2-5) and (1. 2-6) ... Electromechanical Energy Conversion P1 V1 I1 φ = cos 1 = cos 1 = 83.7° 12 11 0 × (1A-2) With V1 as the reference phasor and assuming an inductive circui...

Ngày tải lên: 16/02/2014, 18:45

... system Principle of Electromechanical Energy Conversion Induced emf in Electromechanical Systems The diagram below shows a conductor of length l placed in a uniform magnetic field of flux density ... position of the stator and rotor and is independent of the shape of the stator and rotor poles Model of Electromechanical Systems To illustrate the general principle for m...

Ngày tải lên: 11/07/2014, 05:20

... society problem in the 21st century Thermoelectric phenomena involve the conversion between the thermal energy and electrical energy and provide a method for heating and cooling materials Thermoelectric ... the thermal conductivity decreases rapidly with increasing doping, and 10% doping can yield 50% reduction of the value of thermal conductivity; while in the high...

Ngày tải lên: 10/09/2015, 08:24

... FABRICATION OF DYE SENSITIZED SOLAR CELLS WITH ENHANCED ENERGY CONVERSION EFFICIENCY ZHANG WEI (M Sci.) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL & BIOMOLECULAR ... achieved a photocurrent of 12.6 mA cm-2 and an energy conversion efficiency of ∼3% under AM 1.5G with light intensity of 100 mW cm-2 Although the ener...

Ngày tải lên: 10/09/2015, 08:28

... THE SYNTHESIS AND APPLICATION OF ENERGY STORAGE MATERIALS DERIVED FROM SMALL MOLECULES ZOU SHIQIANG (M.Sc, Peking University) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE ... this thesis, lab-scale synthesis and preparations are conducted to obtain organic and inorganic materials, which are polycarbazole and Sb-carbon composite, both derived...

Ngày tải lên: 30/09/2015, 10:13

... wind, as for example energy demand is very high after sunset to provide lighting Therefore renewable energy comes with its dual topic of energy storage Energy is produced when possible and stored ... tip and the grounded collector is thus created and allows fibers formation 26 Figure Competition between coulombic force and surface tension at the needle exit When an electri...

Ngày tải lên: 16/10/2015, 11:57