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 Wysłany: Sob 23:57, 07 Maj 2011 Temat postu: franklin & marshall Kitchen exhaust hood of the tw |
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Kitchen exhaust hood of the two-dimensional numerical simulation of
80mm is 4,0.28 m, fumes released the export side is 4,350 mm in diameter 4,0.35 m, then: Q = PX1.6X0.28X1T / 4 = 0.09847P, Q1 = px1. OxO. 35x'rr / 4 = 0.09616P, Q2 = Q-Q1 = 0.00231P. Can be found from the results, Q decreased, saving air conditioning energy,franklin & marshall, the efficiency is: egg:: 2 II:: 89.04% a 0.0207P. 4 Conclusion using CFD technology, numerical simulation of two-dimensional control of the kitchen fume hood performance, given the direction of air flow, size, and flow pattern,Óculos Oakley, indicating that CFD simulation technology is an effective method for similar problems. Hood deep type numerical simulation results show that as the smoke release rate increase, the required minimum ventilation rate increases. A large number of out kitchen exhaust hood, so a lot of indoor air-conditioned air is out, an enormous waste of energy. Hood using the new, lower exhaust velocity, can effectively control the spread of smoke, but also can reduce indoor air good air discharge and improve the performance of the hood. References: [1】 Sun Yijian. Industrial ventilation [M】. Beijing: China Building Industry Press, 1994. [2】 China Building Standard Design & Research Institute,ropa ed hardy, Architectural Design and Research Institute of Residential Buildings and equipment. National Building Standard Design Atlas O1SJ913 a residential kitchen [M1. China Building Standard Design & Research Institute, 2005. [3】 CaliforniaEnergyCommissionPIERProgram. DesignGuide: ImprovingCommercialKitchenVentilationSystemPerformanee [EB / OL]. http://www. energy. ca. gov/reports/2003-06-13-500-03-034F. PDF ,2006-04. [4】 Wang Hanqing, Wang Xinghua. Optimal design of local exhaust hood method [J1_ HVAC, 1995, (5): 11 ~ 15. Received date :2007-04-1O Revised :2007-04-232DNumericalSimulationResearchofKitchenExhaustHoodLIUPo-jun, CHENLi-bo (1.JiankeArchitectual, DesignInstituteofGuangdongProvince, Guangzhou510500, China; 2.GuangzhouXieConstructionE chewing neeringCo., Ltd, Guangzhou510075, China) Abstract: ThispaperadoptedCFDnumericalsimulationmethodandtookthetwo-dimensionphysicalmodelascomputationalprototype. Itcomputedairflowfieldonthekitchencross-sectionwhichisalsothemiddlecross-sectionofthehood. Whilechangingtheoilfumereleasingvelocity, itattainedtheoilfumecontrolrule. Thispaperputforwardanewkindofexhausthood-aircurtainexhausthoodandanalysedtheoilfumecontrolperformance. Keywords: kitchenexhausthood; numericalsimulation; aircurtainexhausthood Author: Liu Po Jun (1979), male, Jining people,jordan shoes, bachelor,Hollister sale, Assistant Engineer, engaged in the design and construction of energy-saving HVAC design; Chen Libo (1980), male, Guangdong Electric White, BA, Assistant Engineer, engaged in architectural work. 36l dark green paper
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