2009 Fiscal Year Final Research Report
Reduction of secondary condensation particle formed in latent heat recovery process for small oil furnace and treatment of condensed water
| Project/Area Number |
19560190
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Gunma University |
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Principal Investigator |
FURUHATA Tomohiko Gunma University, 大学院・工学研究科, 准教授 (80261585)
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| Co-Investigator(Kenkyū-buntansha) |
ARAI Masataka 群馬大学, 大学院・工学研究科, 教授 (80112176)
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| Project Period (FY) |
2007 – 2009
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| Keywords | エネルギー効率化 / 排熱回収 / 潜熱回収 / 燃焼炉 / 煤塵 / 煙道内微粒子 / 凝縮水 / 噴霧燃焼 |
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| Research Abstract |
Spray combustions of kerosene or thiophene (C_4H_4S) added kerosene were carried out using a rectangular furnace with a spray burner, and behavior of secondary condensed particle in the stack was investigated. In addition, it was also investigated when a water-cooled heat exchanger was placed in the stack assuming that a latent heat recovery was introduced. As a result, it was found that the number of particles increased along the stack from the upstream to the downstream. This result showed that secondary condensation particles formed in the stack. pH of condensed water formed in the heat exchanger was measured. When pure kerosene used as fuel, the pH was about 4.0. However it was from 2.3 to 2.5 in the case of thiophene added kerosene combustion and it was clear that sulfur in fuel lowered the pH of condensed water.
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