Title of Document: Analyzing Photo-electric Smoke Detector Response Based on Aspirated Smoke Detector Obscuration Analyzing Photo-electric Smoke Detector Response Based on Asprirated Smoke Detector Obscuration
Accurate obscuration levels at the response time of photo-electric smoke detectors are needed for proper detection modeling and analysis. In recent works, obscuration meters were used to measure the obscuration level at photo-electric detector response. In this study, aspirated smoke detectors (VESDA) were used to measure this same obscuration level. These detailed measurements were used to reduce the ambient light and the technology difference error associated with the obscuration meters. The use of aspirated smoke detection (VESDA) instead of light obscuration meters displayed increased accuracy for a majority of the experiments conducted in the 2008 report titled " Validation of a Smoke Detection Performance Prediction Methodology " involving flaming and non-flaming incipient fire sources at 3 different ventilation conditions.
Design of Detection Systems
Fire detection and alarm systems are recognized as key features of a building’s fire prevention and protection strategy. This chapter presents a systematic technique to be used by fire protection engineers in the design and analysis of detection and alarm systems. The majority of discussion is directed toward systems used in buildings. However, many of the techniques and procedures also apply to systems used to protect planes, ships, outside storage yards, and other nonbuilding environments.
Calculation of response time of ceiling-mounted fire detectors
An understanding of the behavior of the fire plume and fire-induced flow near the ceiling of a room is necessary if one is to optimize detector response time and placement.