A Meker–Fisher burner, or Meker burner, is an ambient air

laboratory A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratory services are provided in a variety of settings: physic ...

burner Burner may refer to: * Gas burner, coal burner or oil burner, a mechanical device that burns a gas or liquid fuel in a controlled manner ** Laboratory gas burners: *** Bunsen burner *** Meker–Fisher burner *** Teclu burner ** Hot-air balloon de ...

that produces multiple open gas

flame A flame (from Latin '' flamma'') is the visible, gaseous part of a fire. It is caused by a highly exothermic chemical reaction taking place in a thin zone. When flames are hot enough to have ionized gaseous components of sufficient density they ...

s, used for heating, sterilization, and combustion. It is used when laboratory work requires a hotter flame than attainable using a

Bunsen burner A Bunsen burner, named after Robert Bunsen, is a kind of ambient air gas burner used as laboratory equipment; it produces a single open gas flame, and is used for heating, sterilization, and combustion. The gas can be natural gas (which is ma ...

, or used when a larger-diameter flame is desired, such as with an

inoculation loop An inoculation loop (also called a smear loop, inoculation wand or microstreaker) is a simple tool used mainly by microbiologists to pick up and transfer a small sample of microorganisms called inoculum from a microbial culture, e.g. for streaki ...

or in some glassblowing operations. The burner was introduced by French chemist Georges Méker in an article published in 1905.G. Meker. Nouveaux bruleurs de laboratoire et leur application au chauffage a temperature elevee. ''J. Phys. Theor. Appl.'', 1905, 4 (1), pp. 348–35
Deposited copy at l'archive ouverte HAL
/ref> The Meker–Fisher burner heat output can be in excess of per hour (about 3.5 k W) using

LP gas Liquefied petroleum gas (LPG or LP gas) is a fuel gas which contains a flammable mixture of hydrocarbon gases, specifically propane, propylene, butylene, isobutane and n-butane. LPG is used as a fuel gas in heating appliances, cooking ...

. Flame temperatures of up to are achievable. Compared with a Bunsen burner, the lower part of its tube has more openings with larger total cross-section, admitting more air and facilitating better mixing of air and gas. The tube is wider, and its top is covered with a plate

mesh A mesh is a barrier made of connected strands of metal, fiber, or other flexible or ductile materials. A mesh is similar to a web or a net in that it has many attached or woven strands. Types * A plastic mesh may be extruded, oriented, exp ...

, which separates the flame into an array of smaller flames with a common external envelope, ensures uniform heating, and also preventing flashback to the bottom of the tube, which is a risk at high air-to-fuel ratios and limits the maximal rate of air intake in a Bunsen burner. The flame burns without noise, unlike the Bunsen or

Teclu burner The Teclu burner is an ambient air laboratory gas burner, that was created by Romanian chemist Nicolae Teclu in 1882. The burner is most commonly used to heat substances in a laboratory, can be used for sterilisation and sometimes it is used for s ...

References

External links

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Video of Meker burner in use
Burners Laboratory equipment {{Chemistry-stub

See also

References

External links