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Thermoelectric Cooling Technology
... In general, Peltier elements are very reliable, low maintenance and durable due to the absence of moving parts subject to wear. In addition, they operate quietly and vibration-free. They can be small and lightweight even when combining several modules in one element. Another advantage is low-cost ma ...
... In general, Peltier elements are very reliable, low maintenance and durable due to the absence of moving parts subject to wear. In addition, they operate quietly and vibration-free. They can be small and lightweight even when combining several modules in one element. Another advantage is low-cost ma ...
On Laminar Rich Premixed Polydisperse Spray Flame Propagation
... consumed by chemical reaction is oxygen. It is assumed that the various transport coefficients, such as thermal conductivity, diffusion coefficient, specific heat at constant pressure, and latent heat of vaporization of the droplets, can be satisfactorily specified by representative constant values. ...
... consumed by chemical reaction is oxygen. It is assumed that the various transport coefficients, such as thermal conductivity, diffusion coefficient, specific heat at constant pressure, and latent heat of vaporization of the droplets, can be satisfactorily specified by representative constant values. ...
Ch 12 - HCC Learning Web
... Two different objects are supplied with equal amounts of heat. The objects could have the same specific heat capacities, but they could have different masses. The objects could have the same masses, but they could have different specific heat capacities. Or, the objects could have both different mas ...
... Two different objects are supplied with equal amounts of heat. The objects could have the same specific heat capacities, but they could have different masses. The objects could have the same masses, but they could have different specific heat capacities. Or, the objects could have both different mas ...
basics of heat transfer
... You will recall from thermodynamics that energy exists in various forms. In this text we are primarily interested in heat, which is the form of energy that can be transferred from one system to another as a result of temperature difference. The science that deals with the determination of the rates ...
... You will recall from thermodynamics that energy exists in various forms. In this text we are primarily interested in heat, which is the form of energy that can be transferred from one system to another as a result of temperature difference. The science that deals with the determination of the rates ...
Heat production and heat flow in the mantle lithosphere, Slave
... Thermobarometric data for mantle xenoliths from a kimberlite pipe in the NWT, Canada are used to constrain the thermal properties of the lithospheric mantle underlying the Slave craton. We derive an analytical expression for a steady-state conductive mantle geotherm that is independent of the geomet ...
... Thermobarometric data for mantle xenoliths from a kimberlite pipe in the NWT, Canada are used to constrain the thermal properties of the lithospheric mantle underlying the Slave craton. We derive an analytical expression for a steady-state conductive mantle geotherm that is independent of the geomet ...
Overheating in new homes
... homes, often designed with large areas of glazing, mechanical ventilation and/or communal heating systems have the potential to overheat throughout the year, not just in the summer months or in heatwaves. In rural and suburban locations it may be easy to use natural ventilation (eg window opening) t ...
... homes, often designed with large areas of glazing, mechanical ventilation and/or communal heating systems have the potential to overheat throughout the year, not just in the summer months or in heatwaves. In rural and suburban locations it may be easy to use natural ventilation (eg window opening) t ...
The Definitive Guide to Heating Your Swimming Pool
... Several heating methods are available to you, each with its own advantages and disadvantages. This section discusses electric resistance heaters, gas heaters, heat pumps, and solar heaters. Different methods are best suited for different swimming pools. Therefore, when shopping for a heater, you sho ...
... Several heating methods are available to you, each with its own advantages and disadvantages. This section discusses electric resistance heaters, gas heaters, heat pumps, and solar heaters. Different methods are best suited for different swimming pools. Therefore, when shopping for a heater, you sho ...
Caloric theory and thermodynamics
... new” (optimistic version) in every real physical process. In the recent decade an unprecedented number of challenges have been raised against the Second Law from the position of quantum mechanics [8]. However, these arguments are, as a rule, enormously complicated with numerous approximations and ne ...
... new” (optimistic version) in every real physical process. In the recent decade an unprecedented number of challenges have been raised against the Second Law from the position of quantum mechanics [8]. However, these arguments are, as a rule, enormously complicated with numerous approximations and ne ...
The Heat Flow Through Oceanic and Continental Crust and the Heat
... flow on continentsis controlledby many phenomena.On the time scaleof geologicalperiodsthe most importantof theseare the last orogenicevent,the distributionof heat-producingelements,and erosion. To better understandthe effectsof age, each continent is separatedinto four provinceson the basis of radio ...
... flow on continentsis controlledby many phenomena.On the time scaleof geologicalperiodsthe most importantof theseare the last orogenicevent,the distributionof heat-producingelements,and erosion. To better understandthe effectsof age, each continent is separatedinto four provinceson the basis of radio ...
Institutionen för systemteknik Department of Electrical Engineering
... The more heat that can be turned into work, the higher efficiency of the complete system. When choosing working fluid, several parameters needs to be considered. One of the parameters is the entropy, which has one of the most important roles since it affects how much work that is possible to extract ...
... The more heat that can be turned into work, the higher efficiency of the complete system. When choosing working fluid, several parameters needs to be considered. One of the parameters is the entropy, which has one of the most important roles since it affects how much work that is possible to extract ...
Review on graphite foam as thermal material for heat exchangers
... Because of the large internal interfaces and the high thermal conductivity, the usage of graphite foam is considered as an effective cooling method to dissipate the high heat flux in electronic equipment. Furthermore, the coolant of electronic equipment can be air instead of water, due to the high t ...
... Because of the large internal interfaces and the high thermal conductivity, the usage of graphite foam is considered as an effective cooling method to dissipate the high heat flux in electronic equipment. Furthermore, the coolant of electronic equipment can be air instead of water, due to the high t ...
The high temperature heat capacity and related thermodynamic
... reaction is spontaneous and if so, what yields he can expect. It is through such uses of thermodynamics that we are often able to save both time and money for the benefit of all. So as to determine the high temperature thermodynamic functions, a method must be chosen for making the necessary measure ...
... reaction is spontaneous and if so, what yields he can expect. It is through such uses of thermodynamics that we are often able to save both time and money for the benefit of all. So as to determine the high temperature thermodynamic functions, a method must be chosen for making the necessary measure ...
Heat sink
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A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device into a coolant fluid in motion. Then-transferred heat leaves the device with the fluid in motion, therefore allowing the regulation of the device temperature at physically feasible levels. In computers, heat sinks are used to cool central processing units or graphics processors. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light emitting diodes (LEDs), where the heat dissipation ability of the basic device is insufficient to moderate its temperature.A heat sink is designed to maximize its surface area in contact with the cooling medium surrounding it, such as the air. Air velocity, choice of material, protrusion design and surface treatment are factors that affect the performance of a heat sink. Heat sink attachment methods and thermal interface materials also affect the die temperature of the integrated circuit. Thermal adhesive or thermal grease improve the heat sink's performance by filling air gaps between the heat sink and the heat spreader on the device.