Development of a Photoelectric Smoke Detector with a Built-in Function to Prevent False Alarms Owing to Humidity

• 영문명: Development of a Photoelectric Smoke Detector with a Built-in Function to Prevent False Alarms Owing to Humidity
• 발행기관: 한국화재소방학회
• 저자명: Sikuk Kim
• 간행물 정보: 『International Journal of Fire Science and Engineering』Vol. 37, No. 4, 9~19쪽, 전체 11쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2023.12.31

영문 초록

In this study, a photoelectric smoke detector with a built-in function was developed to prevent false alarms owing to humidity. Smoke-detector sensitivity characteristics were analyzed through room-scale false alarm experiments and by generating humidity conditions measured using a type approval sensitivity tester. The results showed that when humidity was generated, more light scattering occurred as the humidity flowed into the detector chamber along with the smoke, increasing the smoke concentration of the smoke detector. It was found that smoke concentrations increased at a relative humidity of 85 %RH or higher. The findings confirm that false alarms occur owing to high concentrations of humidity in the summer. False alarms that occur owing to high concentrations of water vapor in summer can be prevented by detecting fires using a humidity + smoke concentration fire-detection algorithm that has been quantified through experiments.

목차

1. Introduction

2. Experiments

3. Experimental Results and Observations

4. Design of a Photoelectric Smoke Detector with a Built-in Humidity Sensor

5. Conclusions

Conflicts of Interest

Acknowledgment

References

키워드

Fire detection algorithm Humidity Smoke detector Room-scale False alarms