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 Wysłany: Pią 11:37, 17 Gru 2010 Temat postu: air jordans Air conditioner finite element analysi |
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Air conditioner finite element analysis of piping
Instructions. lB3l-lO32OsE ● l, ElE12_e2IlEOz'l, ・ 23l22. '3, 2s ・ E ● 2 original model Figure 3 Figure 4 The stress contours around the exhaust pipe to improve the shape of contrast (2) the difference on the diameter, the original exhaust pipe diameter is 9.52mm. Improved exhaust pipe diameter of 8mm. Improved model of the displacement contour shown in Figure 5. Improved model of the maximum displacement 0.585606mm, occurred in the back trachea. Fluid Machinery Volume 2002 30 11 0. O6sO67'lOl31, 5: O226O26932s33539O'Oq. _ss, 7l's2. 53esese0E improved model of Figure 5, the displacement contours at a maximum stress 22.573MPa, occurred in the exhaust pipe, the location of winning out in Figure 6. 4 Conclusion (1) with weight applied to the piping system has improved vibration characteristics, with re-imposed the front row near the trachea with third-order modal frequency of the compressor to work, put the weight back after only the first order mode near the tracheal compression machine normal working frequency. (.2) Of the original exhaust pipe of the maximum stress value is too large for 28.847MPa, improved exhaust pipes than the original maximum stress decrease for 22.573MPa, down 21.7%, more obvious stress drop . (3) Original control system maximum displacement 0.572152mm, improved piping system has a maximum displacement 0.585606mm, improve the system of displacement than the original system,[link widoczny dla zalogowanych], an increase of 2.35%. (4) on the air conditioner piping ANSYS finite element analysis system to analyze the reasonableness of the piping and damage effects, which effectively simulated a variety of programs, select the possible options to reduce the physical simulation to reduce the experiment costs and increase design efficiency. e5Ol-llz. 'O ● 5O', '2 'OO {2l25'lls. ', L, # s7zOO's2zs,[link widoczny dla zalogowanych],, - Figure 6, the stress contours improved model Author: Yang Jing, male, born in 1977, CAD / CAE Application Engineer. Communication improved model stress contour shown in Figure 6. Improved models Address: 430 Guangzhou Panyu Dan Hualing Air Conditioning R & D Department for International Development. (Continued from page 60) (3) summer run,[link widoczny dla zalogowanych], then heat loss in the account for a large proportion of Gordon. Winter time is not put into operation reheater, therefore, in winter than in summer, the economy of the system high. (4) If you can increase the supply air temperature, dew point directly to the air supply, then, do not need to heat their Jiong loss does not exist, a higher thermal efficiency. (5) a return air system efficiency Jiong conditions and changes in design than in the ideal conditions are very big difference, so it is a great energy saving potential. (6) Most of the air conditioning system is running in non-design conditions,[link widoczny dla zalogowanych], improve energy efficiency should take into account the non-design condition when the conditions. References [I] WolfgangFmtzscher. ExergyAndPossibleApplications [J]. RevCentherm ,1997,36:690-696. [2jLiangSY, WangTN, NathanGK. StudyOnRefrigerantCircuitryofCondenserCoilswithExergyDestructionAnal ・ ysis [JJ. ApphedThermalEngineering, 2O00 ,20:559-577 .13 jNikolmdisC, ProbertD. Exergy-methodAnalysisofaTwo - stageVapourCompressionRefrigeration - plantsPerformance [J]. ApphedEnergy ,1998,60:241-256. [4] Fu-Lin, Jiang. View from the second law of thermoelectric cooling by the system's energy consumption [J]. Energy technologies,[link widoczny dla zalogowanych], 2OO0, (3). [5] Yang Siwen. Advanced Engineering Thermodynamics [M]. Beijing: Higher Education Press, 1988. [6] Shen Victoria Road, Zhengpei Zhi, Jiang light security. Engineering Thermodynamics [M]. Beijing: Higher Education Press, 1983. [7] Xue Dianhua. Air-conditioning [M]. Beijing: Tsinghua University Press, 1991. Author: Yan Zhi Meng, Address: 200030, Shanghai Jiaotong University, Institute of Refrigeration and Cryogenics.
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