How to understand the working of a heating element Water heating elements or as they are generally known by the name of immersion heaters are placed inside a vat of liquid to heat it. They are a piece of quick and reliable equipment that sometimes is also installed on the side of the vessel that contains the liquid with pressure in a tight space. They are available in many configurations as per their intended use, materials, and temperature ranges. All of these heaters are dependent upon their application to domestic, industrial, science, utilities, appliances, and more. They are also hugely popular due to them being relatively inexpensive as well as being highly energyefficient that employ direct electricity to heat a liquid. They are usually made by encasing a nichrome resistance wire in a ceramic jacket that is surrounded by an Inconel sheath. The Inconel sheath is very resistant to corrosion and heat and protects the stainless steel of the element inside it. The electricity when allowed to flow through the nichrome wire turns it hot to the point where it starts glowing red. It starts spewing heat at a high rate through the ceramic and the Inconel while heating the liquid around it. If it is not immersed, the entire set-up will become red like in some stove heating elements. The heat is conducted from the heater to the liquid through conduction and convection that heats the entire vessel of liquid evenly. In the case of instant hot water requirements like showerheads where large amounts of water cannot be stored. The water gets heated in small pressure chambers that surround the heating elements. The water is regulated so that water continues to exit the pressure chambers to provide a reasonably warm shower. Most industrial uses however simply drop the heater into barrels of water or chemicals and bring it up to the desired temperature. Some large systems may also install them on the walls of the tank or wound them as spirals inside the tank as per their specific requirements. Most of these water heating elements also come with a self-regulation switch. This helps the immersion heaters to be worked constantly while they keep maintaining the temperature of a liquid to the pre-set temperature.
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.