Paul N. Boris

The purpose of the tests described herein was to determine the temperature profile behind a hole through a flame barrier when subjected to the flame of the standard 2-gallon per hour (GPH) burner, and pan fire. The effect of hole diameter on temperature profile was investigated. These tests were intended to simulate an aircraft fire impinging upon a cargo liner with an as-designed opening.

S. Das

The burning velocity of open inverted-cone shaped kerosene air spray was measured at constant air-fuel ratio and for several degrees of atomization of the spray. The results show that as he degree of atomization in the spray increases, the burning velocity first increases to a maximum value, and then decreases to the burning velocity approaching that of a premixed gas flow.

R. Hirst

A general investigation into diffusion flames burning from a liquid surface at low pressure has been made as this type of problem is relevant to the question of the persistence of fires in aircraft flying at high altitudes. The fuels used were isododecane and aviation kerosine.

C. Andrews, M.E. Tarquini

In the light of recent health and environmental issues, halogen-containing polymers have come under intense scrutiny. In particular, polyvinyl chloride (PVC) has been a matter of public concern. The emission of hydrochloric acid gas (HCI) has been indicted due o its corrosively and potential toxicity. The use of fillers and additives are being considered as potential acid gas scavengers. Alumina trihydrate (ATH) and Calcium carbonate (CaC03) have long been used as fillers for PVC, as have been a variety of clays.

This paper offers acid gas evolution and smoke data for the typical non-halogen flame fillers, CaC03, ATH and Magnesium hydroxide (Mg()H)2) as well as a new developmental filler, HYSAFE 150, compounded in a rigid PVC pipe formulation. Specifically, the effects of loading upon induction time, rate of dehydrochlorination and smoke properties, as measured in the NBS Smoke Chamber, are reported

R. Hirst

Three modes of combustion are possible in an aircraft engine fire, and these have been simulated separately in a small wind tunnel.