I14.8与T14.8窗节点U值比较.docVIP

使用 I14..8与 T14.8隔热条的型材 U值比较 1．U值结果对比 使用隔热条节点类型 Uf （W/m2k）节点图 I14.8 框扇搭接，内开 3.77见图 1 T14.8 框扇搭接，内开 3.62见图 2  图1 隔热条 图2 泰诺风保泰（苏州）隔热材料有限公司苏州工业园现代大道东青丘街 283号邮编：215126电话: 0086 512 传真: 0086 512 1 a. 使用I14.8隔热条型材节点计算 The thermal transmittance of a frame according to PrEN 10077-2: U f = DL2 fl U? p pl* and L D2 = ? θ l tot q , with: Uf : thermal transmittance of the window frame [W/m2K] Up : thermal transmittance of the flanking panel [W/m2K] lp : projected width of the insulation panel [m] lf : projected width of the window frame [m] L2D : two-dimensional coupling coefficient [W/mK]  ql,tot : total heat flow through the window frame and the flanking panel [W/m] ?θ : temperature difference between inside (θi) and outside (θe) [K] ql,tot : alphanumeric output heat losses per boundary condition ?θ : input data, surface boundary conditions: inside temperature minus outside temperature Up : calculation, using the following formula: ? 1 di 1 ?? 1 Up =?+∑ +? h λ h ? e ii ? ext./int. surface heat transfer coeff. with: he / hi [W/m2K] di thickness of layer i [m] thermal conductivity of layer i λi [W/mK] lp : input data, length of panel protruding lf : input data, length(width) of frame 泰诺风保泰（苏州）隔热材料有限公司苏州工业园现代大道东青丘街 283号邮编：215126电话: 0086 512 传真: 0086 512 2 BISCO Calculation Results BISCO data file: I14.8-Model.bsc Number of nodes = 24708 Heat flow divergence for total object = 8.1051e-010Heat flow divergence for worst node = 0 Col. Type Name tmin tmax ta flow in flow out [℃] [℃] [℃] [W/m] [W/m]8 MATERIAL aluminium 2.42 12.86 24 MATERIAL 2.47 12.81 28 MATERIAL insulation 1.10 16.13 44 MATERIAL polyamid reinf. 2.53 12.60 60 MATERIAL EPDM 2.08 13.37 170 BC_SIMPL exterior 1.10 2.99 0.00 12.38 174 BC_SIMPL interior (norma 10.55 16.13 9.75 0.00 182 BC_SIMPL interior (reduc 10.55 15.40 2.63 0.00 191 BC_SIMPL adiabatic 2.48 10.55 0.00 0.00 19