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Beijing West Railway Station thermal pipe insulation computer-aided design and optimization


g / m, thermal conductivity: 0.064w/ink. Medium temperature T a 200 The second layer of material: polyurethane, the bulk density and thermal conductivity above to calculate the second layer of insulation thickness. The results slightly. Fifth, as a precautionary measure, according to the simulation of industrial real specimen test results,herve leger skirts, t 7 and the new measured weight to calculate the thermal conductivity re-optimize the experimental determination of thermal conductivity: the first inner layer 159; Portland actual bulk density of 7 = 175kgf / m; room temperature 19 ℃: thermal conductivity of a 0.052w / m · k, at 200,: thermal conductivity calculated as follows: a 0.052 +0.00013 × (type) = 0.066w / m · k recommended thickness of Schedule 1 (first program) designed to pipe diameter pipe insulation material thickness shake: Portland pipeline quality boat degrees F = 200 pit set weight is: GAM = 175 thermal conductivity layer deposited LMDS = 1 wall thick (silicate) material: poly resin pit dance is tGAM = 55 lead re-Yan factor LMDS = 2 drawer wall of the ear (PVC resin) second layer: polyurethane ,7-55kg / m. : 0.030w / 4 turn face. {Falling won-turn cutting plastic Da Ken three! I Zhu plastic volume in three! Chen Kui group summer turns fall garden Gui l according to the diameter D: ll ll query the database and the unit heat loss Ql face five ---- __- One stem Sook-I fish three plastic Jeo!} Simulium stack ∞ Robinson playing painting. . . . . . . . . . . . . . . . . . . . . . . . . . . !. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ken-L Fort Ken Zhu falling in heavy plastic cutting l-_ [fl 1 insulation thickness computer design software block diagram of the mk. Calculate the thickness of insulation layer, such as schedule slightly. The data are measured on the basis of taking into account certain realities, a number of parameters,vibram five fingers outlet, adjusted results. Sixth, taking into account the actual; bn'r the convenience of different diameter range of insulation thickness to diameter 219ram for the boundaries,MBTシューズ 販売店, to make appropriate adjustments. In which D = 219 to take a specification the following,Salvatore Ferragamo outlet, D = 219 or more (including D = 219) to take a specification. The results are shown in Schedule 1 recommended thickness. Seven,herve leger toronto, the software also calculated the thickness of the regional economic security ju iodine thermal 19956 function, but some parameters due to the uncertainty. For example, heat price, etc., therefore the project had not been disheartened by calculating the thickness of economic security. Front has been determined by calculating the adjustment of repeated cross-section dimensions are given (first program), but only to ensure the cross-section size of the pipe surface heat loss does not exceed the national standard to allow the heat loss value, the conventional terms is reasonable. However, this project requires the surface temperature is less than 2O ℃, so need to h range, re-calculated on the machine, optimizing, draw the second one 23 a stalk l 'd eleven district heating 1995.6 program recommended section size calculated section size. (See Table 3 Figure 2) Schedule 2 cross-section dimensions are designed to calculate the thickness of pipe insulation (second program) diameter pipe material Division: Portland pipeline quality boat re-ju-degree = 200 pit thermal conductivity is tGAM = 175 Tu Dong LMDS a 1 (Portland) Don Yoshishige material is PVC Division; GAM = 55 thermal conductivity deposited LMDS = 2 Tu Dong thick <Walled chlorine trap) 5659 end Jian language using computer heating pipe insulation auxiliary computational design optimization, to ensure reasonable insulation, save energy and reduce construction costs and improve the efficiency of designers have practical significance. Through the study of this topic, prepared according to doctors in different, different parameters and single-layer composite insulation thickness computer program software. Heating engineers will provide a recommended section size in Schedule 3 (second option) diameter pipe was 89l33l592l § 273 Material: Ceramic pipe temperature of 200 pit quality boat weight is: GAM-l75 heat deposited LMDS a first copy ] layer thickness (silicate) material Division: capsule fluorine resin bulk density is; GAM = 55 thermal conductivity JJMDS a living wall {2 capsule ammonia fat) {545 efficient tool. Acknowledgements Thanks to Beijing West Railway Station Commander heating headquarters Bai Wen-hua, Zhang Chen, vice commander, great support. Thank Senior Engineer Metallurgy Design Institute Zhaohui Wen, Yang, Beijing, the fourth test well ably assisted by senior engineers. Section size range Figure 9 ~ f f glass is 33sa159, 2l9 Figure 2: Recommended cross-section diagram
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