Study on wind cooling strengthening process of nodular cast iron;
低牌号球墨铸铁风冷强化工艺的试验研究
Heat transfer coefficients of austenitic stainless steel (OCrl8Ni9Ti) and Q235 from 20℃ to 900℃ with shapes of plate and bar were measured under different wind cooling and different wind direction conditions.
介绍了电流法测量换热系数的基本原理,并采用该方法测量了奥氏体不锈钢(0Cr18Ni9Ti)、Q235钢平板和棒状试样在不同风速和不同风向下从高温(900℃)到室温(20℃)的风冷换热系数。
When heating procedure and isothermal temperature are not varied,hardness of the forgings of 20CrMoH steel after the annealing will mainly depend on wind temperature and duration of wind cooling during the annealing.
分析了20CrMoH钢锻件带状组织形成的原因及其对力学性能和切削性能的影响;介绍了消除带状组织和控制锻件硬度的等温退火工艺;当加热规范、等温温度一定时,20CrMoH钢锻件的退火硬度主要决定於风温和风冷时间。
It introduce the structure and principle of the mixed air cooled and water cooled door frame applying the cooling door frame can save energy ideally.
介绍了风冷兼水冷混合型冷却门框结构和原理 ,通过实际应用 ,取得了理想节能效果 ,证明了混合型冷却门框的实用
In this paper,the system principle of the air cooled screw heat pump total heat recovery unit was introduced.
本文对热泵全热回收空调机组系统原理进行了介绍,并通过对风冷热回收机组试验结果的分析,为该类型机组的设计及应用提供参考。
Numerical simulation for air cooling vertical falling film absorption of LiBr solution;
溴化锂风冷垂直降膜吸收过程数值模拟
The results obtained will be helpful for the development of air cooling absorber.
该文提出了风冷吸收器的设计方案 ,建立了风冷吸收器降膜吸收过程中传热、传质耦合问题的物理数学模型。
An air condition scheme is made by comparison in which the air condition system consists of cabinet air conditioner by air cooling direct evaporation and the conditioners are arranged dispersedly.
针对其建筑的实际情况,经方案比较,采用风冷直接蒸发式柜式空调机全空气系统,分散冷源空调的方案。
A study on the thermodynamic-heat transfer coupling performances of an air-cooled LiBr/H_2O absorption refrigerator;
风冷溴化锂吸收式制冷机热力－传热耦合性能的研究
Discusses the principle of drainpipe design for refrigerator,and also gives the formula of opening size of drainpipe of air-cooled refrigerator based on thermodynamics and hydrodynamics.
给出电冰箱排水管设计应遵循的准则,同时从热力学和流体力学的角度推导出风冷冰箱排水管开口尺寸的计算公式。
This paper mainly access the advantage of new-style air-conditional technology to the air-cooled technology of solid transmitter.
综合评价新型空调技术相对于现有固态发射机风冷技术所具有的种种优越性,阐述高效节能的数码涡旋技术应用于广播电视固态发射机空调冷却系统的技术设想、技术方案和预期效果,为固态发射机提出一个新的冷却方法。
The strongpoints of motor air-cooling radiator are analyzed briefly.
简要分析了电动机风冷却器的优点,应用工程热力学理论对风冷散热器进行了热平衡分析和数值仿真,由此获得了相关的热力学仿真数据,认为电动机风量的供给能力、电机的使用环境及其外部温度和温升等,是风冷散热器热力学设计的重要内容。
5/7 oilless lubrication compressor was discussed so as to design large-power and air-cooling oilless lubrication compressor.
为便于对大功率风冷全无油压缩机进行设计,对SW-2。
According to the heat emission of the forced air-cooling enclosed buses, the temperature control system is fixed.
本文首先针对强迫风冷封闭母线的散热特点确定了风冷封闭母线的温度控制系统,然后根据热力学知识建立了风冷封闭母线的热平衡方程,并应用相关程序对方程求解,进而找出强迫风冷封闭母线的温度变化规律;最后利用模糊控制理论设计了针对强迫风冷封闭母线的模糊控制器,并模拟了控制规律,达到了较好的控制效果。