A conflagration is a large
fire
Fire is the rapid oxidation of a fuel in the exothermic chemical process of combustion, releasing heat, light, and various reaction Product (chemistry), products.
Flames, the most visible portion of the fire, are produced in the combustion re ...
in the built environment that spreads via structure to structure ignition due to radiant or convective heat, or ember transmission. Conflagrations often damage human life, animal life, health, and/or property. A conflagration can begin
accidentally or be intentionally created (
arson
Arson is the act of willfully and deliberately setting fire to or charring property. Although the act of arson typically involves buildings, the term can also refer to the intentional burning of other things, such as motor vehicles, watercr ...
). A very large fire can produce a
firestorm
A firestorm is a conflagration which attains such intensity that it creates and sustains its own wind system. It is most commonly a natural phenomenon, created during some of the largest bushfires and wildfires. Although the term has been used ...
, in which the central column of rising heated air induces strong inward winds, which supply
oxygen
Oxygen is a chemical element; it has chemical symbol, symbol O and atomic number 8. It is a member of the chalcogen group (periodic table), group in the periodic table, a highly reactivity (chemistry), reactive nonmetal (chemistry), non ...
to the fire. Conflagrations can cause
casualties including deaths or injuries from
burn
A burn is an injury to skin, or other tissues, caused by heat, electricity, chemicals, friction, or ionizing radiation (such as sunburn, caused by ultraviolet radiation). Most burns are due to heat from hot fluids (called scalding), soli ...
s, collapse of structures and attempts to escape, and
smoke inhalation
Smoke inhalation is the breathing in of harmful fumes (produced as by-products of combusting substances) through the respiratory tract. This can cause smoke inhalation injury (a kind of acute inhalation injury) which is damage to the respirator ...
.
Firefighting
Firefighting is a profession aimed at controlling and extinguishing fire. A person who engages in firefighting is known as a firefighter or fireman. Firefighters typically undergo a high degree of technical training. This involves structural fir ...
is the practice of extinguishing a conflagration, protecting life and property and minimizing damage and injury. One of the goals of
fire prevention
Fire prevention is a function of many fire departments. The goal of fire prevention is to educate the public on the precautions that should be taken to prevent potentially harmful fires from occurring. It is a proactive method of preventing fir ...
is to avoid conflagrations. When a conflagration is extinguished, there is often a
fire investigation
Fire investigation (sometimes referred to as origin and cause investigation) is the analysis of fire-related incidents. After firefighters extinguish a fire, an investigation is launched to determine the origin and cause of the fire or explosi ...
to determine the cause of the fire.
Causes and types
During a conflagration a significant movement of air and combustion products occurs. Hot gaseous products of combustion move upward, causing the influx of more dense cold air to the combustion zone. Sometimes, the influx is so intense that the fire grows into a
firestorm
A firestorm is a conflagration which attains such intensity that it creates and sustains its own wind system. It is most commonly a natural phenomenon, created during some of the largest bushfires and wildfires. Although the term has been used ...
.
Inside a building, the intensity of gas exchange depends on the size and location of openings in walls and floors, the ceiling height, and the amount and characteristics of the
combustible materials.
*Industrial conflagrations include fires at
oil refineries
An oil refinery or petroleum refinery is an industrial process plant where petroleum (crude oil) is transformed and refined into products such as gasoline (petrol), diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefied pet ...
, such as the 2009
Cataño oil refinery fire.
*
Wildfires
A wildfire, forest fire, or a bushfire is an unplanned and uncontrolled fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a ...
are fires in forests or other undeveloped areas, and may grow into a conflagration.
*An urban conflagration is defined as a "large, destructive fire that spreads beyond natural or artificial barriers; it can be expected to result in large monetary loss and may or may not include fatalities. An urban conflagration moves beyond a block and destroys whole sections of a city." Notable examples includes the
Great Fire of London
The Great Fire of London was a major conflagration that swept through central London from Sunday 2 September to Wednesday 5 September 1666, gutting the medieval City of London inside the old London Wall, Roman city wall, while also extendi ...
in 1666, the
Great Fire of Tartu in 1775, the
Great Fire of Turku in 1827, and the
Great Fire of Hamburg in 1842, and the
Camp Fire in
Paradise, California in 2018, which burned 18,000 structures and killed 85 people.
*On board ships, a large uncontained fire may quickly lead to a ship conflagration.
*The conflagration of a building is known as a
structure fire
A structure fire is a fire involving the structural components of various types of residential, commercial or industrial buildings, such as barn fires. Residential buildings range from single-family detached homes and townhouses to apartments ...
.
Notable examples
See also
*
Deflagration
Deflagration (Lat: ''de + flagrare'', 'to burn down') is subsonic combustion in which a pre-mixed flame propagates through an explosive or a mixture of fuel and oxidizer. Deflagrations in high and low explosives or fuel–oxidizer mixtures ma ...
*
Fire department
A fire department (North American English) or fire brigade (English in the Commonwealth of Nations, Commonwealth English), also known as a fire company, fire authority, fire district, fire and rescue, or fire service in some areas, is an organi ...
*
Fire investigation
Fire investigation (sometimes referred to as origin and cause investigation) is the analysis of fire-related incidents. After firefighters extinguish a fire, an investigation is launched to determine the origin and cause of the fire or explosi ...
References
External links
*
Conflagration on map(AccidentMap.com Accident on map)
{{Authority control
Combustion
Fire
Firefighting
Types of fire