搜索结果: 1-15 共查到“动力与电气工程 Air”相关记录19条 . 查询时间(0.061 秒)
Vapor-collection technology saves water while clearing the air（图）
蒸汽收集技术 净化空气 节约用水 发电厂 冷却塔
2023/6/19
About two-fifths of all the water that gets withdrawn from lakes, rivers, and wells in the U.S. is used not for agriculture, drinking, or sanitation, but to cool the power plants that provide electric...
第十届国际暖通空调研讨会（10th International Symposium on Heating, Ventilation and Air Conditioning）
第十届 国际 暖通空调 研讨会
2017/1/19
The ISHVAC conference series was initiated by Tsinghua University in 1991. It is the premier international HVAC conference initiated in China and has played a significant role in the development of HV...
Passive radiative cooling below ambient air temperature under direct sunlight
Passive radiative cooling below ambient temperature direct sunlight
2015/8/6
Cooling is a significant end-use of energy globally and a major driver of peak electricity demand. Air conditioning, for example, accounts for nearly fifteen per cent of the primary energy used by bui...
华南理工大学传质与分离工程课件chapter10a (wet air proporty)
华南理工大学 传质与分离工程 课件 chapter10a wet air proporty
2014/7/28
华南理工大学传质与分离工程课件chapter10a (wet air proporty)。
Experiments of flow and heat transfer performances for air-cooling laminated turbine vane
flow performance heat transfer static cascade
2014/6/9
Flow resistance and heat transfer coefficients of typical double wall laminated film cooling configuration within a turbine vane were experimentally studied. The specimen was in large scale, and made ...
换流站直流侧空气净距及海拔修正计算方法（Air Clearance and Its Altitude Correction Method for the DC Side of Converter Stations）
g参数法 海拔修正 直流侧空气净距 迭代
2010/8/17
对g参数法的计算原理进行了阐述，提出了基于g参数法的直流侧空气净距迭代计算方法，并应用该算法计算了国内在建的楚雄换流站和穗东换流站工程中直流侧空气净距。将计算结果与工程实际采用的推荐值比较表明，该算法是可行的。
CARBON DIOXIDE AS THE REPLACEMENT FOR SYNTHETIC REFRIGERANTS IN MOBILE AIR CONDITIONING
refrigerant global warming potential R-134a
2009/10/14
Based on Kyoto Protocol and the decisions of European Commission R134a refrigerant, currently dominantly used in mobile air conditioning systems, needs to be phased-out. At present automotive industry...
EXPERIMENTAL ANALYSIS OF FUZZY CONTROLLED ENERGY EFFICIENT DEMAND CONTROLLED VENTILATION ECONOMIZER CYCLE VARIABLE AIR VOLUME AIR CONDITIONING
energy conservation thermal comfort indoor air quality
2009/10/14
In the quest for energy conservative building design, there is now a great opportunity for a flexible and sophisticated air conditioning system capable of addressing better thermal comfort, indoor air...
THERMODYNAMIC ANALYSIS OF AIR REFRIGERATOR ON ENERGY GRAPH
thermodynamic analysis exergy efficiency
2009/10/13
Improving me chanical system efficiency is the goal of many engineers and scientists. Commonly, the solutions to these types of problems are uncovered using thermodynamic analysis and optimization. An...
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 ...
Disturbances in N2-CARS Gas Temperature Measurements in Pulverised Coal-Air-CH4 Flames
Laser diagnostics CARS C2 interference Temperature measurement
2009/10/12
The application of nitrogen vibrational and rotational CARS thermometry to flat, premixed, laminar,methane-air and coal-methane-air flames has been investigated using a Nd:YAG and dye laser system at ...
煤层气—空气预混层流火焰特性试验（Experiment on the Premixed Laminar Flames of Coal Bed Methane-air Mixtures）
煤层气 预混层流火焰 定容燃烧弹
2009/9/2
利用高速摄影技术，在定容燃烧弹中研究了不同燃空当量比、初始压力和煤层气中CH4浓度对煤层气燃烧火焰传播速度和层流燃烧速度的影响。研究结果表明：在燃空当量比为1.1时层流燃烧速度最大；燃烧开始时，随着初始混合压力的增加，最大燃烧压力明显增加，火焰传播速度和层流燃烧速度减小，火焰半径大于40mm后，层流火焰传播速度和燃烧速度又随初始压力的增加而增大；随着煤层气中CH4浓度的增加，层流燃烧速度和最高燃烧...
直联式空压机PWM变占空比控制（Changing Duty Ratio PWM Control of Direct-drive Air Compressor）
直联式空压机 直流无刷电动机 变占空比
2009/8/11
研究了一种用直流无刷电动机驱动的直联式空压机，借鉴直接转矩控制的思想，根据直联式空压机负载的特点，提出了一种基于单片机的脉宽调制(PWM)变占空比控制方法。根据空压机负载，将控制周期中的每一拍设置成不同的占空比。给出了基于Simulink的仿真计算，仿真结果表明，这种控制方法简单可行，直联式空压机转速波动较小，且有较好的稳定性和抗干扰能力。试验结果表明，PWM变占空比控制能达到节约成本，提高效率，...
龙眼压差通风预冷装置风速控制与能耗分析（Air Velocity Control and Energy Analysis in Forced-air Pre-cooling Device of Longan）
龙眼 压差通风预冷 能耗
2009/5/22
针对龙眼的物理特性，设计了一套龙眼压差通风预冷试验装置。根据果蔬压差预冷7/8时间特性，通过试验得到了龙眼包装箱压差与风速关系以及异步电动机频率与风速关系。进一步研究龙眼压差预冷装置能耗与风速关系可知，对于龙眼果实，较小的风速预冷能耗较小，预冷时间较长；当预冷时间按要求设定时，在风机允许范围内控制风速按一定规律递增，直到龙眼终止温度，可以在设定时间内完成龙眼预冷，且能耗最小。
The 6th International Symposium on Heating, Ventilating and Air Conditioning（第六届国际暖通空调学术会议）
第六届 暖通空调 学术会议
2009/4/15
为降低建筑能源消耗，改善环境质量，促进建筑、能源和环境的可持续发展，第六届国际采暖，通风，空调大会（The 6th International Symposium on Heating, Ventilation and Air Conditioning）将于2009年11月6~9日在中国南京国际会议中心举行。本届大会由东南大学主办，清华大学和香港大学协办。本会议起源于1991年。本会议分别于199...
