The 3-D inner gilled tube strengthening heat transfer technology can be used to reduce the metal consumption and increase the thermal efficiency.
对火筒烟管结构、换热盘管结构形式以及整体结构进行了优化设计,对热媒介质进行了优选。
Thermal efficiency
英语例句库
原声例句
精选英语短文
In the past, local heating was mainly provided by decentralized small boilers mostly using coal, which has low thermal efficiency and wastes energy, putting pressure on local environmental protection during winter heating season.
过去，当地供暖主要由分散式小锅炉提供，主要使用煤炭，热效率低，浪费能源，冬季供暖时，给当地环境保护带来压力。
中文百科
热效率
在热力学中，热效率（
）是一个无因次的物理量，指的就是热机的效率，也就是热机运作过程中，热机可以产生机械能作功之能量与热源可提供的总能量的比。
其中
为燃料总能量
为产生机械能作功
根据热力学第一定律，热机的热效率恒小于等于100%。
热泵及制冷设备也有类似的无因次物理量，称为性能系数（COP），是输入功和提供热能（或抽出热能）的比例，不过能效可能大于100%，和一般对效率的认知不同。
英语百科
Thermal efficiency 热效率
In thermodynamics, the thermal efficiency () is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, a steam turbine or a steam engine, a boiler, a furnace, or a refrigerator for example. For a power cycle, thermal efficiency indicates the extent to which the energy added by heat is converted to net work output. In the case of a refrigeration or heat pump cycle, thermal efficiency indicates the extent to which the energy added by work is converted to net heat output.