convective heat transfer coefficient

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• Convective heat transfer — See also: Heat transfer and convection This figure shows a calculation for thermal convection. Colors closer to red are hot areas and colors closer to blue are cold areas. In this figure, a hot, less dense lower boundary layer sends plumes… …   Wikipedia

• Heat transfer coefficient — The heat transfer coefficient, in thermodynamics and in mechanical and chemical engineering, is used in calculating the heat transfer, typically by convection or phase change between a fluid and a solid::Delta Q=h cdot A cdot Delta T cdot Delta… …   Wikipedia

• Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change …   Wikipedia

• Heat — In physics, heat, symbolized by Q , is energy transferred from one body or system to another due to a difference in temperature. [cite book|author= Daintith, John |title=Oxford Dictionary of Physics|publisher=Oxford University… …   Wikipedia

• Micro heat exchanger — Micro heat exchangers, Micro scale heat exchangers, or microstructured heat exchangers are heat exchangers in which (at least one) fluid flows in lateral confinements with typical dimensions below 1 mm. The most typical such confinement are… …   Wikipedia

• Nusselt number — In heat transfer at a boundary (surface) within a fluid, the Nusselt number is the ratio of convective to conductive heat transfer across (normal to) the boundary. Named after Wilhelm Nusselt, it is a dimensionless number. The conductive… …   Wikipedia

• Nucleate boiling — is a type of boiling that takes place when the surface temperature is hotter than the saturated fluid temperature by a certain amount but where the heat flux is below the critical heat flux. For water, as shown in the graph below, nucleate… …   Wikipedia

• Churchill–Bernstein equation — In convective heat transfer, the Churchill–Bernstein equation is used to estimate the surface averaged Nusselt number for a cylinder in cross flow at various velocities.[1] The need for the equation arises from the inability to solve the… …   Wikipedia

• Psychrometrics — or psychrometry are terms used to describe the field of engineering concerned with the determination of physical and thermodynamic properties of gas vapor mixtures. The term derives from the Greek psuchron (ψυχρόν) (… …   Wikipedia

• Churchill-Bernstein Equation — In convective heat transfer, the Churchill Bernstein equation is used to estimate the surface averaged Nusselt number for a cylinder in cross flow at various velocities. [Some examples of said system can be seen here: Cite web | publisher =… …   Wikipedia

• Biot number — The Biot number (Bi) is a dimensionless number used in unsteady state (or transient) heat transfer calculations. It is named after the French physicist Jean Baptiste Biot (1774 1862), and relates the heat transfer resistance inside and at the… …   Wikipedia