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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,[link widoczny dla zalogowanych], 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, 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,[link widoczny dla zalogowanych], given the direction of air flow,[link widoczny dla zalogowanych], size, and flow pattern, 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,[link widoczny dla zalogowanych], 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, 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]. [link widoczny dla zalogowanych] 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,[link widoczny dla zalogowanych], (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, bachelor, 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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