net collection efficiency是什么意思

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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。

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。

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。

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。

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。

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。

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。

Study on Collecting Efficiency of Different Structural Flat-plate Solar Air Collector

不同结构平板型太阳能空气集热板集热效率研究

Analysis of Thermal Efficiency of Collective Solar Hot Water System

集中集热太阳能热水系统热效率分析

Analysis of thermal and exergy efficiencies of new-type trough-focus solar collector

新型槽式真空热管集热器的热效率及火用效率分析

Study on heating efficiency of a porous and passive solar collector

一种开孔被动式太阳能集热器热效率的研究

Study on the Thermal Efficiency of the Solar Parabolic Trough Concentration System

太阳能槽式聚光集热系统的热效率研究

EXERGY EFFICIENCY ANALYSIS OF STIRLING HEAT ENGINE DRIVEN BY SOLAR DISH COLLECTOR BASED ON FTT

碟式集热器驱动斯特林热机系统(火用)效率分析

AN OPTIMIZATION DESIGN METHOD FOR FLAT-PLATE SOLAR COLLECTORS--THE COST/EFFICIENCY METHOD

平板集热器最佳化设计的一种方法——成本/效率法

ENERGY AND EXERGY EFFICIENCY ANALYSIS OF A SOLAR CONCENTRATING PV/T AIR HEATING COLLECTOR

聚光太阳能PV/T空气集热器能量和(?)效率分析

Comparative analysis of the instantaneous efficiency about two types of solar collector

两种太阳能集热器的瞬时效率对比分析

Study on the Application of Heating Efficiency in District Heating System

提高公寓式住宅集中供热系统热利用效率的应用研究

thermal balance and thermal efficiency of furnaces inmetallurgical industry

冶金炉热平衡和热效率

digital specific-heat meter

数字式热效率测定仪

transmission efficiency of thermoelectric vehicle

热－电机车的传动效率

Research for Energy and Exergy Efficiencies of Solar Thermoelectric Generator;

太阳能热电发电系统的热效率和（火用）效率研究

collection efficiency of photomultiplier tube

光电倍增管的收集效率

collective effective dose equivalent rate

集体有效剂量当量率

Fast heating, high precision of tempt control and high thermal efficiency.

加热速度快，控温精度高，热效率高。

Improve the Heat Transfer Path and Raise Thermal Efficiency of the Chain Boiler

改善传热途径 提高链条锅炉的热效率