- коэффициент пропорциональности между интенсивностью конвективного теплообмена с поверхности и температурной разностью по толщине воздушного пограничного слоя у этой поверхности.
- см. heat transfer coefficient.
Англо-русский словарь по кондиционированию и вентиляции. 2013.
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
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
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
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
Dynamic insulation — is a form of insulation where cool outside air flowing through the thermal insulation in the envelope of a building will pick up heat from the insulation fibres. Buildings can be designed to exploit this to reduce the transmission heat loss (U… … 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
Abkürzungen/Luftfahrt/B–D — Dies ist der zweite Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B (BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL … Deutsch 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
Cooling tower — Natural draft wet cooling hyperboloid towers at Didcot Power Station, UK … Wikipedia
Ernst Kraft Wilhelm Nusselt — (Nuremberg, 25 novembre 1882 Munich, 1er septembre 1957) est un physicien allemand. C est un pionnier dans l étude de transfert par convection. Son nom reste attaché au nombre adimensionnel auquel son nom a été donné, le nombre de… … Wikipédia en Français
