What is autoclave and its types?
An autoclave is a machine that provides a physical method of sterilization by killing bacteria, viruses, and even spores present in the material put inside of the vessel using steam under pressure. Autoclave sterilizes the materials by heating them up to a particular temperature for a specific period of time.
What is hot air oven and how does it work?
What is Hot Air Oven? The electrical device which is widely used in medical products manufacturing industries, rubber industries, and many more to perform the process of sterilization using dry heat is known as Hot Air Oven. The instrument works on the basis of dry heat to sterilize the specimens and articles.
How does a hot air oven work for sterilization?
The use of heat for sterilization was initiated by Louis Pasteur. Hot Air Oven is an electrical devise that works on Heat convection principle. It consist of electrical heating coil that produces dry heat. In the chamber, the produced dry heat air displaces the cooled air forming heat gradient.
How does a static air hot air oven work?
The static air hot air oven works by using a heating coil at the bottom of the oven. The heat rises throughout the oven and takes a longer time to reach the desired temperature. Since the heat is not circulated as with a forced air hot air oven the temperature is not consistent throughout the oven.
How are electrical devices work on the principle of hot air?
Electrical devices work on the principle of dry and hot air convection (that is circulation of heated air), conduction, and radiation. The hot air convection process is of two types. a. Gravity convection process: Heated air expands and possesses less density than cooled air which rises up and displaces the cooler air (the cooler air descends).
What is the operating principle of a hot air oven?
Operating Principle of Hot Air Oven. The instrument works on the principle of fine gravity air convection in a highly heated electrical chamber of the unit. The instrument comprises of a double walled design and PID temp.
What are the uses of a hot air oven?
Hot air oven • An oven provides a temperature higher than that of atmosphere. • The temperature range covered by ovens is between 50-250°C. • These are used for rapid evaporation of materials, rapid drying and for sterilization of articles that can be sterilized by dry heat.
The use of heat for sterilization was initiated by Louis Pasteur. Hot Air Oven is an electrical devise that works on Heat convection principle. It consist of electrical heating coil that produces dry heat. In the chamber, the produced dry heat air displaces the cooled air forming heat gradient.
Who was the inventor of the hot air oven?
Hot air ovens are electrical devices which use dry heat to sterilize. They were originally developed by Pasteur.
