Development of Electric Power-Saving Type Kerosene Burner with Using Strong Thermal Network

强热网省电型煤油燃烧器的研制

• 批准号: 11650776
• 负责人: KOBAYASHI Noriyuki
• 金额: $ 2.24万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650776/
• 关键词: Ceramic plate; Large pore; Heat reflux; Kerosene; Burner; Electric power; Ultrasonic atomizer

Kerosene burner for home use boiler has the merit in economic cost. However, it is no easy to burn the Kerosene fuel as gaseous fuel. Therefore, Kerosene fuel is forced to heated or sprayed in order to vaporize and be mixed with the air. The heating type burner is superior to the other type burner, in the instant ignition, wide turn-down ratio, easy control of turn-down, and so on. On the other hand, the heating type burner consumes a lot of electric power during heating process ransing from 300 to 1000W.The objective of this research is to reduce the electric power for vaporing the Kerosene fuel during combustion by using strong thermal network in the burner. That is, a ceramic plate with very large pores to reflux the thermal radiation from flame upstream in order to vaporize the fuel. A burner with the ceramic plate was constructed, and the characteristics of the new-type burner were experimentally investigated.It is demonstrated as follows :(1) It has become possible to eliminate the electric power to heat and vaporize the Kerosene fuel during combustion.(2) The temperature difference across section become very small ranging within 30 degree K.(3) The ratio of reflux of heat from the flame after porous plate to the fuel seems to be 2 % of the total combustion heat.(4) The technique of ignition by using ultrasonic atomizer is promised to make ignition time short.

家用锅炉煤油燃烧器具有经济成本的优点。然而，将煤油燃料作为气体燃料燃烧并不容易。因此，煤油燃料被迫加热或喷射以汽化并与空气混合。加热式燃烧器具有点火瞬间、调节比宽、调节容易控制等优点，优于其他类型的燃烧器。另一方面，加热式燃烧器在加热过程中消耗大量电力，从300W到1000W不等。本研究的目的是通过在燃烧器中使用强热网络来减少燃烧期间汽化煤油燃料的电力。也就是说，陶瓷板具有非常大的孔，用于回流来自上游火焰的热辐射，从而使燃料蒸发。构造了一种带有陶瓷板的燃烧器，并对新型燃烧器的特性进行了实验研究。结果表明：（1）在燃烧过程中消除了煤油燃料加热和汽化的电力成为可能。（2）截面温差变得非常小，范围在30°K以内。（3）多孔板后火焰与燃料的热量回流比似乎为2 (4)采用超声波雾化器点火技术，保证点火时间短。