Green Industrial Building Wind Environment Design Research

With our country industrial building energy consumption continuing to rise,reducing energy consumption of industrial construction,promoting the development of green indu strial buildings,has become the primary issue the architectural designer should consider at present.Mechanical processing plant in our country are numerous and interior space is big.In the summer and transition seasons,workshop air conditioning usage rate is higher and a number of precision type factory on indoor sealing requirement is not high,which caused air conditioning energy consumption too large.Suzhou area,affected by the mons-oon climate,is year-round windy,bringing about great potential for use of natural ventilat ion.In the process of industrial building design,based on the local natural environment,r-easonable organization interior building wind environment,Can create a green and healt hy use space cleverly.Reasonable use of natural ventilation in the design of the building,can be appropriate to reduce building energy consumption and improve the comfort level of the indoor environment."Evaluation standard for green industrial building " issued in 2014,domestic appear many green industrial architecture examples.Yet buildin-g wind environment and expounds the optimization design of natural ventilation is an un derstatement.Most building designer is carried out in accordance with the standard and de sign experience to simple building wind environment design,most of which construction simulation analysis of wind environment,ignores the indoor and outdoor air pressure at t he same time.They only analyze simulation of the wind outdoor or indoor air environme nt partially Industrial architecture research through the optimization design of natural ven tilation to reduce energy consumption is rare.At this stage,machinery workshop internal construction lack of natural ventilation,most of the wind environment organization is relying on the wind pressure of windows an d door.and indoor direct ratio is related with the wind speed and wind pressure of windo w.In the summer(June)and transition season(September),we try to increase the window area of windward side,contribute to the formation of positive and negative pressure diff erence interface,ensure that the fresh air into the indoor,outdoor increase indoor wind sp eed,reduce indoor air in each layer of age,and indirectly reduce the operation time of wo rkshop air conditioning open,and reduce building energy consumption of air conditioning,in order to achieve the goal of green energy.In winter,with the effect of heat conduction and convection,the large area of the outside window will increase the heat loss of the construction cost and increase the building thermal load,which is not conducive toachieve the goal of industrial building annual energy.In view of the mechanical machining factory building in Suzhou,this paper adopts CFD(PHOENICS)numerical simulation technology,aimed at different regions and different types of plant,to simulate the indoor and outdoor wind environment for different plant heights of wind pressure field and wind pressure value simulation analysis.Then it compares simulation results and measured data variance valueand verify the reliability of the simulation results.At the same time,this paper analyzes internal problems of natural ventilation for every layer of the existing factory building and put forward the optimization design in areas such as the internal partition according to the measured data and the resources of workshop windward side window.Finally,depending on DeST energy consumption simulation application,it analyes the original operating mode and improveand verify the rationality of the design optimization.In there search of multiple factorys in Suzhou,the author choose three different areas of the plant as a case study.Found after field measurement and numerical simulation is about the outdoor wind environment.In aspect of outdoor wind environment:Case 1(Jiangyuan 4 # workshop,single layer,no other buildings around)is good;Case 2(GP Enterprises workshop,single layer,on the west side adjacent high-rise)affected by the high-level office buildings,the wind pressure value of window is low in the south and west;Case 3(Dongfeng workshop,multilayer,there are other buildings in south and west,)influenced by adjacent buildings,two sides wind pressure value of window is low.In aspect of indoor wind environment,in each case in addition to the area of the window of indoor wind speed and air age is relatively ideal,other area of the measured and simulated results are not ideal.Model analyzing various working conditions under Case 1,draw the conclusion: increasing wind deflector appropriately outside the window and ensuring the original window area,can effectively improve indoor local natural ventilation.It can save 14141.43 W air conditioning cooling load in Summer,amount to reduce about 2.25%.Model analyzing various working conditions under Case 2 simulation analysis,draw the conclusion:increasing wind deflector appropriately outside the window and ensuring the original window area,can effectively improve indoor local natural ventilation,and the wind deflector bulge is longer,the effect is more obvious.It can save 7724.79 W air conditioning cooling load in Summer,amount to reduce about1.73%.Model analyzing various working conditions under Case 3simulation analysis,draw the conclusion: increasing wind deflector appropriately outside the window and ensuring the original window area,can effectively improve indoor localnatural ventilation,and the wind deflector bulge is longer,the effect is more obvious.It can save 4993.9W air conditioning cooling load in Summer,amount to reduce about0.87%.Combined with optimization results of three different cases,it concludes the optimization design of the building wind environment.The results of the study has a certain reference value on both green industrial building energy saving design and the mechanical industrial design.