Deteriorated heat transfer (DHT), or heat transfer deterioration (HTD), is characterized by the rapid increase in the wall temperature or the drop in the heat transfer coefficient compared to normal heat transfer. From: Applied Thermal Engineering, 2018 ...
BODY temperatureANALYTICAL solutionsSome practically important problems of unsteady heat conduction with a time-variable relative heat-transfer coefficient are considered. Various approaches to finding a solution to the analytical problem are systematized: decomposition of the generalized integral Fourier ...
And, (Σ)Rt=Rtt=1HA, where H represents the overall heat transfer coefficient. Therefore, the overall heat transfer coefficient can be expressed as (43)H=1Rt,tA=11h1+L1k1+⋯+1hn 1.10.4.2.4.2 Thermal resistance for cylinders The thermal resistance concept can also be applied to a cylind...
heat transfer arrangement 热传递装置 heat transfer by radiation 辐射传热 相似单词 transfer v.[T] 1.搬;转换;调动 2.使换车;使转校 3.改变,转变 4.转印,描摹 5.转让,让渡 v.[I] 1.搬迁,转移;调任 2.换车,转车 3.转校,转学科 n. Transfer 传输,传递.转移(=XEFR) coefficient n. 1.【...
This heat transfer calculator will help you compute rates for each type of heat transfer. To do it: Choose a type of heat transfer, e.g. we want to calculate fluid convection. Enter a heat transfer coefficient. Let's assume it is 2000 W/m2·K. Specify the surface area of 1 m2. En...
heat transfer capability 传热能力 相似单词 convective a. 传达性的,对流的 transfer v.[T] 1.搬;转换;调动 2.使换车;使转校 3.改变,转变 4.转印,描摹 5.转让,让渡 v.[I] 1.搬迁,转移;调任 2.换车,转车 3.转校,转学科 n. Transfer 传输,传递.转移(=XEFR) coefficient n. 1.【数】系数...
7、 Nusselt number, viewed as the dimensionless convection heat transfer coefficient is defined as:Nu=hLckWhere k is the thermal conductivity of the fluid and Lc is the characteristic length. The physical significance means the heat transfer ratio of convection to conduction. For Nu=1, the heat...
Chapter4Heattransfer Heattransfer Heattransferisthemovementofenergyfromonepointtoanotherbyvirtueofadifferenceintemperature.Heattransfer Conduction:Heatwillbetransferredbetweenadjacentmolecules.Convection:Heatistransferredwhenmoleculesmovefromonepointtoanotherandexchangesenergywithanothermoleculeintheotherlocation.Radiation:the...
Nusselt number, viewed as the dimensionless convection heat transfer coefficientis defined as: Where k is the thermal conductivity of the fluid and Lc is the characteristic length.The physical significance means the heat transfer ratio of convection to conduction.For Nu=1, the heat transfer is ...
3) heat transfer coefficient 热传递系数 1. The analytical expressions of heat transfer coefficient(HTC)were induced. 分析了金属凝固过程中界面热传递的 4个阶段及在各阶段热传递的机理 ,推导出界面热传递系数在各个阶段的表达式。 2. In order to achieve an effective control of the heat transfer ...