The heat pipe and heat exchanger have the advantages of high heat transmission efficiency, simple structure, safety and reliability, small fluid resistance, needing no repairing and additional power.
热管及热管换热器具有传热效率高、结构简单、安全可靠、安装方便、流体阻力小、不需维修和外加动力等优点，已经获得了广泛的工业应用。
The effective use of energy in an industrial plant heating system depends on the efficiency of boiler, heat consuming equipment as well as heat transmission in the system.
工厂供热系统的能源利用率取决于锅炉热效率、用热设备和管网输送热效率的高低。
When it is used as coating of iron pan, the efficiency of heat transmission of enamel coated pan increases about 20 % than that of uncoated one.
用该红外搪瓷制成的搪瓷铸铁锅，其传热效率比不涂搪瓷的铸铁锅提高20%，且抗冲击韧性和耐温急变性分别达到0。
The water pipe (4) of the smoke pipe (5) reduces the flowing section of the smoke channel, speeds up the smoke flow, improving the heat transmission performance and efficiency.
烟管（5）中的水管（4）减小了烟道流动截面积、加大了烟气流速，使得烟气传热性能增强、热效率高。
The water pipe (4) of the smoke pipe (5) reduces the flowing section of the smoke channel, speeds up the smoke flow, improving the heat transmission performance and efficiency.
烟管（5）中的水管（4）减小了烟道流动截面积、加大了烟气流速，使得烟气传热性能增强、热效率高。
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