Catalytic heaters produce heat through flameless chemical reactions. Many space heaters are catalytic. Soldering irons and disposable chemical heat packs are also catalytic heaters. They produce heat gradually, which is a significant advantage over combustion heaters in applications requiring controlled, predictable heating.Know More
According to Brad Painting of DexKnows Home Improvement, simple catalytic heaters consist of a fuel tank, a metal grate and a mesh plated with a catalyst such as platinum. As the fuel passes from the tank through the mesh, it undergoes a chemical reaction and produces heat. The metal grate absorbs the heat and radiates it out into the surrounding space, often assisted by a small fan.
Catalytic heaters have several potential power sources. The most common include alcohol, propane, lighter fluid and butane. Some catalytic heaters are safe for indoor use during power outages. However, fire safety laws restrict the type and size of the fuel tank permitted for these applications. Mr. Heater explains that in the event of a fire, failure to abide by these guidelines renders the house ineligible for fire department intervention due to the risk of a fuel tank explosion, regardless of the source of the fire.
Catalytic heaters need fresh air to function safely. The chemical reaction between the fuel and the catalyst requires plenty of oxygen. RV expert Curtis Carver frequently uses catalytic heaters while traveling and advises others to reduce the risk of suffocation by ensuring that the heater has a steady supply of fresh oxygen.Learn more in Thermodynamics
A Six's thermometer functions by using alcohol to expand or contract the mercury inside to display both the highest and lowest temperatures of a given time period. There are bulbs at the top of each arm of the tube, one above each indicator. The bulb above the minimum indicator tube typically contains alcohol while the bulb atop the maximum indicator tube contains a vacuum.Full Answer >
Conduction works by transferring heat from one molecule to another through a substance. This occurs due to the readiness of the substance to allow molecules to move. A heated molecule moves and shakes rapidly, and some of its heat energy is passed to molecules around it.Full Answer >
Chillers work by circulating water through a refrigeration cycle and then piping it through a system for heat exchange inside a building or facility. There are several common types of chillers, including the vapor compression and absorption models.Full Answer >
Thermal energy is used to describe energy in a heated form. Thermal energy is transferred in three different ways: radiation, conduction and convection.Full Answer >