An optimization design cooling and fan, large size heater, fast heat exchange and use of high-energy, fast heating, drying time is short.
优化设计散热及风机，大规格加热器，热交换快，热能利用高，升温快，干衣时间短。
2
The experimental research results of condensation type domestic water heater are stated and the optimization of heat exchange surface area is analyzed through examples.
介绍冷凝式家用燃气热水器的实验研究结果，并结合实例对换热面积进行了优化分析。
3
It is also verified from practical application that this novel vapour heater can decrease both the vibration and the noise during operation, and increase the heat exchange efficiency effectively.