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Heaters
A heater is an appliance whose purpose is to generate heat for a building. Heater or Heaters may also refer to: Science, technology and engineering * Central heating, a system used to heat an entire building Devices * Aquarium heater, in fishkeeping, used to warm aquarium water * Boiler or heater, used to heat water for use in a heating system * Furnace (house heating), Furnace or heater, used to heat buildings using a central system * Radiator (heating) or heater, used to transmit heat from a boiler * Space heater, that heats a single area ** Gas heater, that heats a area using gas ** Oil heater, that heats oil to heat a room Physics * Heating element, a device that converts electricity into heat * Cathode heater, in vacuum tubes and gas-filled tubes ** Heater, a vacuum tube filament for an indirectly heated cathode in a vacuum tube Music * Heaters (band), an American rock band * "The Heater", a song by The Mutton Birds * Heater (Samim song), "Heater" (Samim song), a song by Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heaters (band)
Heaters is an American alternative rock band, formed in 2013 in Grand Rapids, Michigan. The band is currently composed of singer-bassist Nolan Krebs, drummer Joshua Korf, guitarist Ryan Hagan and singer-guitarist Ben Taber. The band's original co-frontman and guitarist Andrew Tamlyn left the band in March 2017 to focus on his new band Fyrrh. History The band was originally formed as Plantains in 2013 as a four piece band including Alex Falardeau. High School friends Andrew Tamlyn (who had previously released material under the names Amish Bread and Yoke) and Nolan Krebs (who had been a member of Drone Wolves) moved to Grand Rapids from Midland, Michigan. The duo bonded over traditional surf music and "messed around with music a little bit" before parting ways to go to college. They moved to Grand Rapids with the purpose of pursuing a musical project together due to the area's music scene They enlisted Ann Arbor native Joshua Korf on drums, who was their new next door neighbour. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heaters, West Virginia
Heaters is an Unincorporated area, unincorporated community in Braxton County, West Virginia, Braxton County, West Virginia, United States. Heaters is situated approximately three miles north of Flatwoods, West Virginia, Flatwoods on U.S. Route 19#West Virginia, U.S. Route 19, which is a paved two-lane road. Access from Interstate 79#West Virginia, I-79 is at exit 67 in Flatwoods, or exit 79 at Burnsville, West Virginia, Burnsville, then West Virginia Route 5, Route 5 to Heaters. There is no stoplight in Heaters. Heaters has a United States Postal Service post office and the ZIP Code is 26627. Prior to the construction of I-79 in 1974, US-19 was the main road between Morgantown and Charleston, and Heaters was a convenient place to stop. At its peak, Heaters had a gas station, a general store, and a lunch restaurant. All are now gone. Heaters does have a community center located at 4350 Gauley Turnpike, which is used for community gatherings such as potluck dinners, memorial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Heater
A space heater is a device used to heat a single, small- to medium-sized area. This type of heater can be contrasted with central heating, which distributes heat to multiple areas. Types Dominant mode of heat transfer All space heaters transfer heat to their environment via some combination of the three fundamental modes of heat transfer: convection, radiation, and conduction. Typically heaters are designed with either convection or radiation as the sole dominant mode. Convective heaters ''Convective space heaters'' utilize convection to transfer heat from the power source to a space. These heaters typically either rely on ''natural'' or ''forced'' convection. Natural convection is a phenomenon where temperature variations in an environment generate fluid flow. Forced convection heaters utilize a device like a fan to generate air flow and spread heat at a fast pace. Sometimes called "fan heaters," these are often cheap but lack in efficiency and versatility. Radia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heater
Heating, ventilation, and air conditioning (HVAC ) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers). HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities; medium to large industrial and office buildings such as skyscrapers and hospitals; vehicles such as cars, trains, airplanes, ships and submarines; and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indirectly Heated Cathode
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. It takes the form of an evacuated tubular envelope of glass or sometimes metal containing electrodes connected to external connection pins. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplification and current rectification. Non-thermionic types such as vacuum phototubes achieve electron emission through the photoelectric effect, and are used for such purposes as the detection of light and measurement of its intensity. In both types the electrons are accelerated from the cathode to the anode by the electric field in the tube. The first, and simplest, vacuum tube, the diode or Fleming valve, was invented in 1904 by John Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Heater
A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: ''flued'' or ''non-flued,'' or ''vented'' and ''unvented''. History The first gas heater made use of the same principles as the Bunsen burner. Beginning in 1881, the burner's flame was used to heat a structure made of asbestos, a design patented by Alice H.Parker, a England engineer. Function The gas heater is able to warm up a whole room by first allowing the flame to heat the air locally, then it disperses throughout the air by convection. Today the same principle applies with outdoor patio heaters or "mushroom heaters" which act as giant Bunsen burners. Modern gas heaters have been further developed to include units that utilize radiant heat technology, rather than the principles of the Bunsen burner. This form of technology does not spread via convection, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Heater
An oil heater, also known as an oil-filled heater, oil-filled radiator, or column heater, is a common form of convection heater used in domestic heating. Although filled with oil, it is electrically heated and does not involve burning any oil fuel; the oil is used as a heat reservoir (buffer). Function Oil heaters consist of metal columns with cavities inside, where heat-transfer oil flows freely around the heater. A heating element at the base of the heater heats the diathermic oil, which flows around the cavities of the heater by convection. The oil has a relatively high specific heat capacity and a high boiling point. The high specific heat capacity allows the oil to effectively transfer thermal energy from the heating element, while the oil's high boiling point allows it to remain in the liquid phase for heating, so that the heater does not have to be a high-pressure vessel. The heating element heats the oil, which transfers heat to the metal wall through convection, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heating Element
A heating element is a device used for conversion of electric energy into heat, consisting of a heating resistor and accessories. Heat is generated by the passage of electric current through a resistor through a process known as Joule heating. Heating elements are used in household appliances, industrial equipment, and scientific instruments enabling them to perform tasks such as cooking, warming, or maintaining specific temperatures higher than the ambient. Heating elements may be used to transfer heat via Thermal conduction, conduction, convection, or radiation. They are different from devices that generate heat from electrical energy via the Peltier effect, and have no dependence on the direction of electrical current. Principles of operation Resistance & resistivity Materials used in heating elements have a relatively high Electrical resistivity and conductivity, electrical resistivity, which is a measure of the material's ability to resist electric current. The Electri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cathode Heater
In vacuum tubes and gas-filled tubes, a hot cathode or thermionic cathode is a cathode electrode which is heated to make it emit electrons due to thermionic emission. This is in contrast to a cold cathode, which does not have a heating element. The heating element is usually an electrical filament heated by a separate electric current passing through it. Hot cathodes typically achieve much higher power density than cold cathodes, emitting significantly more electrons from the same surface area. Cold cathodes rely on field electron emission or secondary electron emission from positive ion bombardment, and do not require heating. There are two types of hot cathode. In a ''directly heated cathode'', the filament is the cathode and emits the electrons. In an ''indirectly heated cathode'', the filament or ''heater'' heats a separate metal cathode electrode which emits the electrons. From the 1920s to the 1960s, a wide variety of electronic devices used hot-cathode vacuum tubes. Today, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquarium Heater
An aquarium heater is a device used in the fishkeeping hobby to warm the temperature of water in aquariums. Most tropical freshwater and marine aquariums are maintained at temperatures that range from . The types include glass immersion heaters and undergravel heating. There are also heating mats that may be placed under the aquarium. Glass immersion heaters Most commonly, aquarium heaters are immersion style heaters, these heaters consist of a glass tube containing a heating element wound around a ceramic or glass insert. Some glass immersion heaters also contain sand, and most, but not all, are fully submersible. The glass tube also contains an adjustable thermostat which turns the heating element on to maintain the required temperature. This thermostat is often a bimetallic strip; because the strip contains two metals, the metals will expand at different rates when the temperature rises, causing the strip to bend. This strip carries the current, but breaks the current at the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firearm
A firearm is any type of gun that uses an explosive charge and is designed to be readily carried and operated by an individual. The term is legally defined further in different countries (see legal definitions). The first firearms originated in 10th-century China, when bamboo tubes containing gunpowder and pellet projectiles were mounted on spears to make the portable fire lance, operable by a single person, which was later used effectively as a shock weapon in the siege of De'an in 1132. In the 13th century, fire lance barrels were replaced with metal tubes and transformed into the metal-barreled hand cannon. The technology gradually spread throughout Eurasia during the 14th century. Older firearms typically used black powder as a propellant, but modern firearms use smokeless powder or other explosive propellants. Most modern firearms (with the notable exception of smoothbore shotguns) have rifled barrels to impart spin to the projectile for improved flight stabili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heater Shield
The heater shield or heater-shaped shield is a form of Middle Ages, European medieval shield, developing from the early medieval kite shield in the late 12th century in response to the declining importance of the shield in combat thanks to improvements in leg armour. The term is a neologism, created by Antiquarian, Victorian antiquarians due to the shape's resemblance to a clothes iron. Examples are depicted in the Great Seal, great seal of Richard I of England, Richard I and John, King of England. Details Smaller than the kite shield, it was more manageable and could be used either mounted or on foot.''Medieval Swordsmanship'', p. 102 From the 15th century, it evolved into highly specialized jousting shields, often containing a ''bouche'', a notch or "mouth" for the lance to pass through. As plate armour began to cover more and more of the body, the shield grew correspondingly smaller. By the mid 14th century it was hardly seen outside of tournaments. Heater shields were ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
