log mean temperature difference
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Log mean temperature difference — The log mean temperature difference (LMTD) is used to determine the temperature driving force for heat transfer in flow systems (most notably in heat exchangers). The LMTD is a logarithmic average of the temperature difference between the hot and … Wikipedia
Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan … 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 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
NTU method — The Number of Transfer Units (NTU) Method is used to calculate the rate of heat transfer in heat exchangers (especially counter current exchangers) when there is insufficient information to calculate the Log Mean Temperature Difference (LMTD). In … Wikipedia
Concentric tube heat exchanger — Concentric Tube (or Pipe) Heat Exchangers are used in a variety of industries for purposes such as material processing, food preparation and air conditioning.[1] They create a temperature driving force by passing fluid streams of different… … Wikipedia
Shell and tube heat exchanger — A shell and tube heat exchanger is a class of heat exchanger designs. [ cite book|author=Sadik Kakaç and Hongtan Liu|title=Heat Exchangers: Selection, Rating and Thermal Design|edition=2nd Edition|publisher=CRC Press|year=2002|id=ISBN 0849309026] … Wikipedia
Reaction calorimeter — A reaction calorimeter is an instrument that enables the energy being released or absorbed by a reaction to be measured. The majority of events taking place within a reactor release or absorb energy, so if that can be measured it allows a view of … Wikipedia
разность средних температур, определённая при температурном каротаже — — [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN log mean temperature difference … Справочник технического переводчика
analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… … Universalium
Level of measurement — The levels of measurement , or scales of measure are expressions that typically refer to the theory of scale types developed by the psychologist Stanley Smith Stevens. Stevens proposed his theory in a 1946 Science article titled On the theory of… … Wikipedia
