EFFECT OF HEAT TRANSFER ON FIRE DEVELOPMENT STAGES AND SPREAD OF FIRE

Abstract

Fire has played a leading role in the development of civilizations and fire and the energy produced
by fire have been effective in every turning point throughout history. The main energy of the
cannons used by Fatih Sultan Mehmet in the conquest of Istanbul in 1453 is the combustion
reaction.On the basis of the industrial revolution and mechanization, the main energy source is the
combustion reaction. Today, the combustion reaction is the basis of the operation of automobiles,
heating, feeding and many other processes.
Cooking, heating, lighting and pottery making, which are also the most basic needs, have always
been thanks to fire. In this way, fire has become so important for human beings that it is the subject
of myths.
However, especially in the last century, with the rapid development of technology, the variety of
building materials, items and devices used in the construction of living spaces has increased and the
use of synthetic-based products as raw materials has become widespread in these areas.
This situation can cause today's fires to be much more destructive. In today's fires, many different
fire gases occur. Likewise, the heat value produced by fires can be much higher. This not only
facilitates the growth and spread of fires, but also makes extinguishing efforts more difficult. It
absolutely necessitates the use of personal protection equipment so that the heat and fire gases
generated do not affect the extinguishing personnel. In recent years, many firefighters who entered
the fire environment without using personal protective equipment or wearing them incorrectly have
been injured or lost their lives.
In this paper, the heat transfer patterns and fire stages that cause the rapid growth of indoor fires are
examined, and the indicators that may be the harbinger of possible dangers in these stages are
emphasized.