ABSTRACT

As a result of large-scale numerical investigations of liquid condensed substances ignition processes,

1 INTRODUCTION

Flammable and combustible liquids are the most flammable and highly explosive substances. The absence of recommendations or a security breach during storage, transportation, transfer and processing of these condensed substances explains the large number of ignitions, fires and explosions in chemical, petrochemical and petroleum refining industrial enterprises. It is quite difficult to establish causes of accidents in each case. Among many possible ignition sources a large group oflocal energy sources with a limited energy capacity can be distinguished. These sources include single metal and nonmetal particles heated to high temperatures. These particles are formed as a result of technological processes in various industries. In particular, in metallurgical industry, solid and liquid metal particles of small size with a temperature more than several hundred degrees are formed during procurement materials processing. Cutting and welding of metal constructions, uncontrolled technology and natural processes may also lead to hot particle formation.