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1)  heating element efficiency
集热部件效率
1.
Accordingly,a computational example is taken and a simple method is pointedly illustrated which makes use of the heating element efficiency(η) to conduct thermal engineering calculation of combined passive solar houses.
据此,通过一算例着重阐述了用集热部件效率η进行组合式被动太阳房热工计算的一种简易方法。
2.
Accordingly,a simple method which makes use of heating element efficiency (η) to conduct thermal engineering calculations of combined passive solar houses is emphatically illustrated by a computational example.
据此 ,进而通过一算例着重阐述了用集热部件效率η进行组合式被动太阳房热工计算的一种简易方
2)  heating element
集热部件
1.
On the basis of the steady state heat transfer theory,thermal efficiency formulas are established of two heating elements,commonly used in Inner Mongolia combined passive solar houses.
本文以稳态传热理论为基础,推导建立了内蒙古组合式被动太阳房中二种常用集热部件的效率计算公式。
2.
In this paper,on the basis of steady state heat transfer analysis of the three common heating elements in Inner Mongolia passive solar houses,the thermal efficiency curves of heating elements in different meteorological conditions have been developed.
本文在对内蒙古被动式太阳房中三种常用集热部件进行稳态传热分析的基础上 ,绘制了不同气象条件下的集热部件效率曲线。
3.
On the basis of steady state heat transfer theory,the thermal efficiency formulas of the two common heating elements in Inner Mongolia combined passive solar houses have been established in this paper.
本文以稳态传热理论为基础 ,推导建立了内蒙古组合式被动太阳房中二种常用集热部件的效率计算公式。
3)  Collector efficiency
集热效率
1.
This paper presents operating principle and key equipments of solar assisted heat pump system,solar collector design,thermal storage container design,and analyses the measurement errors of the collector efficiency.
介绍了太阳能热泵供热实验台集热器、蓄热器等设备的设计,分析了集热器集热效率的测试误差,指出太阳能热泵供热实验台测试数据准确、可靠,为太阳能热泵供热系统的设计、安装和运行提供了有价值的参考依据。
2.
Air collector efficiency,heat loss coefficient and outlet temperature equations are derived.
针对热水作工质时真空集热管内普遍存在的冻结、腐蚀等问题,本文采用空气作工质,推导了空气作工质时真空集热管的集热效率、热损系数和集热管出口温度的方程,分析了影响空气作工质时各项参数对集热器热性能的影响。
3.
The thermal analysis of the heat pipe receiver was presented in which the collector efficiency and thermal loss were calculated in 3 separate sections.
文中分析了该新型热管接收器的特点,并分3段模拟计算了采用该接收器的抛物面槽式太阳能集热器的集热效率和接收器的散热损失。
4)  heat collection efficiency
集热效率
1.
When collector is vertically placed,the heat collection efficiency with natural convection or forced convection is tested.
对集热器在竖直放置时,自然对流和强迫对流方式下的集热效率进行了试验测试,强迫对流方式下的平均集热效率为60。
5)  collection efficiency
集热效率
1.
A steady state mathematical model of fluid flow and heat transfer based on two dimensional asssumptions was set up at first,and then numerical solution was brought out by finite difference method,thus,streamlines,temperature distribution and collection efficiency were obtained.
建立了基于二维假设下的流体流动和热量传递的稳态数学模型,并用有限差分法进行数值求解,计算得到稳态下太阳能空气集热器的速度、温度分布图以及集热效率与空气流量、入口空气温度、入射太阳辐照度和表面盖板透过率的关系。
2.
Results show that the flow resistance will be decreased and the collection efficiency of the porous solar wall will be increased with a decrease in the inlet air velocity.
计算结果表明,降低空气入口流速,可减小空气流动阻力,提高多孔墙的集热效率;附加玻璃通道的太阳能多孔墙可减小长波辐射损失,并且具有收集热空气的作用。
6)  heat-collecting efficiency
集热效率
1.
In order to improve the heat-collecting efficiency,a pin-fin arrays solar air collector was designed.
提出将太阳能空气集热器加热的空气用于除湿冷却空调系统再生的想法,并为了提高集热效率,设计了一种圆柱阵列式空气集热器。
补充资料:冶金炉热平衡和热效率
      冶金炉的热平衡指的是向炉内提供的热量等于被加热物达到工艺要求时所吸收的热量加上各种热损失的总和。热平衡的理论基础是热力学第一定律。分析热平衡的目的是从热能流向图中找出进一步节能的途径。热效率则是被加热物吸收的热量与向炉内提供热量的比值。并用比值的大小评价冶金炉热工作的优劣,希望达到尽可能大的比值。
  
  热损失项目繁多,主要为炉气和冷却水带走的热,炉墙的积热和散热。炉气带走的热最多,而且在热支出的总量中占的份额差别也很大,一般为20~50%;冷却水带走的热也大,如加热炉冷却滑轨的水带走的热量可达全部热损失的15~30%,采用汽化冷却和绝热包扎后可降到6%左右;其他如炉墙积热和散热,炉门溢气和辐射,不完全燃烧等热损失在正常情况下约占热总收入的10~20%。某些间歇式的热处理炉炉墙积热和散热以及料架吸热有时高达热总收入的40%。近年来采取减少热损失的措施有:回收炉气带走的热,对炉内冷却件实行绝热,使炉墙轻型化和加大炉墙的热阻,采用加热新工艺,通过这些可使某些加热炉的热效率达60%以上。目前正设法利用产品所吸收的热以进一步降低总的能耗。根据不同类型和不同效率范围的200座加热炉和150座热处理炉的测定数据所做的研究分析,得出综合热平衡情况见图。从图中可以看出,提高待加工品的热焓,充分利用废气和冷却水的余热,进一步减少炉墙和辐射热损失以及设法利用产品带走的热,将是冶金炉节能的主要途径。
  
  加热炉和热处理炉的热效率一般为15~65%;化铁炉为25~45%;高炉为75~85%;平炉为20~30%。
  

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