Development of micro grid fire extinguishing system for preventing the city fire spread

2014 Fiscal Year Final Research Report

• Project/Area Number: 24651191
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Social systems engineering/Safety system
• Research Institution: Hachinohe Institute of Technology
• Principal Investigator: KUDO Yuji 八戸工業大学, 工学(系)研究科(研究院), 准教授 (80333714)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 消火設備 / 泡消火 / 環境にやさしい消火法 / 震災対策

Outline of Final Research Achievements

In the Great East Japan Earthquake that occurred in March 2011, many fires were occurred. If fires occur in multiple and simultaneous due to the tsunami, there are cases where firefighting cannot keep up. As a countermeasure, we have proposed placing the small package type fire extinguishing equipment to each household. We have proposed plant biomass foam extinguishing method. This extinguishing method is assumed to be used for small packaged extinguishing systems for installation in general residential.
When using a vegetable oil or kerosene as fuel, extinguishing time is decreased as compared with the case of using as a fuel n-heptane. In a high boiling point fuel case, much foam was collapsed. Because the radiation intensity from high boiling fuel flame to foam is higher than n-heptane flame.　Then, the heat balance in the condensed phase was examined. This result shows that the cooling of condensed phase is more important for extinguishing a high boiling point fuel fire.

Free Research Field

燃焼工学／火災安全工学