搜索结果: 1-9 共查到“知识库 动力与电气工程 efficiency”相关记录9条 . 查询时间(0.093 秒)
IMPROVING ECO-SUSTAINABLE CHARACTERISTICS AND ENERGY EFFICIENCY OF EVAPORATIVE FLUID COOLER VIA EXPERIMENTAL AND NUMERICAL STUDY
evaporative fluid cooler experimental study numerical integration
2009/10/14
This paper presents an on-going research project that aims to identify possibilities for wider use of evaporative cooling in process industry, especially the use of evaporative fluid cooler units. Exp...
FUEL EFFICIENCY OF CONVENTIONAL DESIGN TRACTORS DIESEL ENGINES IN RELATION TO NEW DESIGN
FUEL EFFICIENCY CONVENTIONAL DESIGN TRACTORS DIESEL ENGINES RELATION
2009/10/13
Total consumption of all types of energies is rather high nowadays with constant tendency of increasing. Transport section is one of the highest consumers of energy obtained from fossil fuels. It is a...
EFFICIENCY AND EMISSION OF CROP RESIDUES COMBUSTION FACILITIES IN SERBIA - STATUS AND NEEDED MEASURES FOR IMPROVEMENT
biomass concentrating emission legislation
2009/10/13
Use of crop residues as fuel has a long tradition in rural areas of Serbia. Numerous biomass-fueled facilities were built during the 80s. Among those were small facilities for household heating, with ...
AN INCREASE OF HYDRO-AGGREGATE'S INSTALLED POWER AND EFFICIENCY FACTOR BEFORE THE REVITALIZATION PHASE
hydro-aggregates power increasing calculations
2009/10/13
The revitalization of hydro-aggregates should be performed before the life-time expiry of most their parts. But, as in our practice aggregates have been under exploitation much longer then theoretical...
THE EFFICIENCY OF A DYNAMICALLY INSULATED WALL IN THE PRESENCE OF AIR LEAKAGES
dynamic insulation air leakages building simulations
2009/10/13
The movement of air in and through the building envelope often plays a leading role in the transport of heat and moisture into the building. It is caused by pressure and temperature variations around ...
AGGLOMERATION OF BED MATERIAL: INFLUENCE ON EFFICIENCY OF BIOFUEL FLUIDIZED BED BOILER
biomass combustion bubbling fluidized bed agglomeration
2009/10/13
The successful design and operation of a fluidized bed combustor requires the ability to control and mitigate ash-related problems. The main ash-related problem of biomass firing boiler is agglomerati...
配流阀容积效率对三缸内燃水泵工作性能的影响（Effect of Distributing Valve’s Volumetric Efficiency on Working Performance of Three Cylinders Internal Combustion Water Pump）
内燃泵 配流阀 容积效率
2009/5/22
综合考虑液体可压缩性与液体连续流条件的影响，建立了三缸内燃泵(ICP)配流阀的动力学模型，研究了配流阀的容积效率特性。样机工作频率与配流阀的固有频率成整数倍关系时，容积效率大幅度降低。样机标定转速与容积效率最低时的转速较为接近，不利于系统正常稳定工作。容积效率的变化对ICP的燃油消耗率、输出流量、有效热效率、有效功率等性能指标影响较大，但对输出压力基本没有影响。
Efficiency of Atkinson Engine at Maximum Power Density using Temperature Dependent Specific Heats
Atkinson engine power density temperature dependant specific heat
2008/6/30
Thermodynamic analysis of an ideal air-standard Atkinson cycle with temperature dependant specific heat is presented in this
paper. The paper outlines the effect of maximizing power density on the pe...
SOME CONSIDERATIONS REGARDING THE EFFICIENCY OF THE ELECTROMECHANICAL MOTION
Motion control feed-forward control energy saving
2002/1/12
Control techniques for servo drive which run at variable speed for prolonged
time is developed on the base of minimum energy dissipation in a feed-forward
structure. The optimal control laws are det...