Heisler Chart

	Heisler Chart Heisler charts are a graphical analysis tool for the evaluation of one-dimensional transient conductive heat transfer in thermal engineering. They are a set of two charts per included geometry introduced in 1947 by M. P. Heisler which were supplemented by a third chart per geometry in 1961 by H. Gröber. Heisler charts permit evaluation of the central temperature for transient heat conduction through an infinitely long plane wall of thickness 2''L'', an infinitely long cylinder of radius ''r''o, and a sphere of radius ''r''o. Each aforementioned geometry can be analyzed by three charts which show the midplane temperature, temperature distribution, and heat transfer. Although Heisler–Gröber charts are a faster and simpler alternative to the exact solutions of these problems, there are some limitations. First, the body must be at uniform temperature initially. Second, the Fourier's number of the analyzed object should be bigger than 0.2. Additionally, the temperature of the surr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Heat Transfer Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species (mass transfer in the form of advection), either cold or hot, to achieve heat transfer. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system. Heat conduction, also called diffusion, is the direct microscopic exchanges of kinetic energy of particles (such as molecules) or quasiparticles (such as lattice waves) through the boundary between two systems. When an object is at a different temperature from another body or its surroundings, heat flows so that the body and the surroundings reach the same temperature, at which point they are in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 5 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heat Conduction Conduction is the process by which heat is transferred from the hotter end to the colder end of an object. The ability of the object to conduct heat is known as its ''thermal conductivity'', and is denoted . Heat spontaneously flows along a temperature gradient (i.e. from a hotter body to a colder body). For example, heat is conducted from the hotplate of an electric stove to the bottom of a saucepan in contact with it. In the absence of an opposing external driving energy source, within a body or between bodies, temperature differences decay over time, and thermal equilibrium is approached, temperature becoming more uniform. In conduction, the heat flow is within and through the body itself. In contrast, in heat transfer by thermal radiation, the transfer is often between bodies, which may be separated spatially. Heat can also be transferred by a combination of conduction and radiation. In solids, conduction is mediated by the combination of vibrations and collisions of molec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heat Transfer Coefficient In thermodynamics, the heat transfer coefficient or film coefficient, or film effectiveness, is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat (i.e., the temperature difference, ). It is used in calculating the heat transfer, typically by convection or phase transition between a fluid and a solid. The heat transfer coefficient has SI units in watts per square meter kelvin (W/m2/K). The overall heat transfer rate for combined modes is usually expressed in terms of an overall conductance or heat transfer coefficient, . In that case, the heat transfer rate is: :\dot=hA(T_2-T_1) where (in SI units): : surface area where the heat transfer takes place (m2) : temperature of the surrounding fluid (K) : temperature of the solid surface (K) The general definition of the heat transfer coefficient is: :h = \frac where: : heat flux (W/m2); i.e., thermal power per unit area, q = d\dot/dA : difference in temperature bet ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Convection (heat Transfer) Convection (or convective heat transfer) is the transfer of heat from one place to another due to the movement of fluid. Although often discussed as a distinct method of heat transfer, convective heat transfer involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow). Convection is usually the dominant form of heat transfer in liquids and gases. Note that this definition of convection is only applicable in Heat transfer and thermodynamic contexts. It should not to be confused with the dynamic fluid phenomenon of convection, which is typically referred to as ''Natural Convection'' in thermodynamic contexts in order to distinguish the two. Overview Convection can be "forced" by movement of a fluid by means other than buoyancy forces (for example, a water pump in an automobile engine). Thermal expansion of fluids may also force convection. In other cases, natural buoyancy forces alone are entirely responsible for fluid mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 9 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 8 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 7 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 6 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-Matic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 4 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]

	Heisler Chart Heisler charts are a graphical analysis tool for the evaluation of one-dimensional transient conductive heat transfer in thermal engineering. They are a set of two charts per included geometry introduced in 1947 by M. P. Heisler which were supplemented by a third chart per geometry in 1961 by H. Gröber. Heisler charts permit evaluation of the central temperature for transient heat conduction through an infinitely long plane wall of thickness 2''L'', an infinitely long cylinder of radius ''r''o, and a sphere of radius ''r''o. Each aforementioned geometry can be analyzed by three charts which show the midplane temperature, temperature distribution, and heat transfer. Although Heisler–Gröber charts are a faster and simpler alternative to the exact solutions of these problems, there are some limitations. First, the body must be at uniform temperature initially. Second, the Fourier's number of the analyzed object should be bigger than 0.2. Additionally, the temperature of the surr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Heat Transfer Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species (mass transfer in the form of advection), either cold or hot, to achieve heat transfer. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system. Heat conduction, also called diffusion, is the direct microscopic exchanges of kinetic energy of particles (such as molecules) or quasiparticles (such as lattice waves) through the boundary between two systems. When an object is at a different temperature from another body or its surroundings, heat flows so that the body and the surroundings reach the same temperature, at which point they are in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 5 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heat Conduction Conduction is the process by which heat is transferred from the hotter end to the colder end of an object. The ability of the object to conduct heat is known as its ''thermal conductivity'', and is denoted . Heat spontaneously flows along a temperature gradient (i.e. from a hotter body to a colder body). For example, heat is conducted from the hotplate of an electric stove to the bottom of a saucepan in contact with it. In the absence of an opposing external driving energy source, within a body or between bodies, temperature differences decay over time, and thermal equilibrium is approached, temperature becoming more uniform. In conduction, the heat flow is within and through the body itself. In contrast, in heat transfer by thermal radiation, the transfer is often between bodies, which may be separated spatially. Heat can also be transferred by a combination of conduction and radiation. In solids, conduction is mediated by the combination of vibrations and collisions of molec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heat Transfer Coefficient In thermodynamics, the heat transfer coefficient or film coefficient, or film effectiveness, is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat (i.e., the temperature difference, ). It is used in calculating the heat transfer, typically by convection or phase transition between a fluid and a solid. The heat transfer coefficient has SI units in watts per square meter kelvin (W/m2/K). The overall heat transfer rate for combined modes is usually expressed in terms of an overall conductance or heat transfer coefficient, . In that case, the heat transfer rate is: :\dot=hA(T_2-T_1) where (in SI units): : surface area where the heat transfer takes place (m2) : temperature of the surrounding fluid (K) : temperature of the solid surface (K) The general definition of the heat transfer coefficient is: :h = \frac where: : heat flux (W/m2); i.e., thermal power per unit area, q = d\dot/dA : difference in temperature bet ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	Convection (heat Transfer) Convection (or convective heat transfer) is the transfer of heat from one place to another due to the movement of fluid. Although often discussed as a distinct method of heat transfer, convective heat transfer involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow). Convection is usually the dominant form of heat transfer in liquids and gases. Note that this definition of convection is only applicable in Heat transfer and thermodynamic contexts. It should not to be confused with the dynamic fluid phenomenon of convection, which is typically referred to as ''Natural Convection'' in thermodynamic contexts in order to distinguish the two. Overview Convection can be "forced" by movement of a fluid by means other than buoyancy forces (for example, a water pump in an automobile engine). Thermal expansion of fluids may also force convection. In other cases, natural buoyancy forces alone are entirely responsible for fluid mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 9 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 8 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 7 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 6 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-Matic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Heisler Zoom 4 Heisler is a surname. Notable people with the surname include: * Charlene Heisler (1961–1999), Canadian astronomer * Charles L. Heisler, American steam locomotive designer Conrad Heisler, character in The Angry Hills (film) Gregory Heisler (born 1954), American photographer * Jindřich Heisler, a Czech surrealist poet, friend of Toyen * L. Heisler Ball (1861–1932), physician and Delaware Senator * Mark Heisler, a sports writers and author * Marcy Heisler (born 1967), musical theater writer and performer * Mike Heisler, American comic book writer * Todd Heisler (born 1972), American photojournalist * Randy Heisler (born 1961), American Olympic discus thrower * Stuart Heisler (1896–1979), film and television director See also * Heisler locomotive, a geared steam locomotive * Heisler Locomotive Works, the American locomotive construction firm * Heisler Beer, a fictional brand of beer seen in movies and television shows * Heisler Industries, makers of the Bail-O-M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]