Study On Improvement Of Indoor Light Environment And Wind Environment Of Townhouses In Southern Anhui By Patio

Southern Anhui dwellings are one of the typical representatives of Traditional Chinese dwellings.Modern southern Anhui dwellings only inherit the characteristics of traditional dwellings in form,but do not inherit the passive adjustment technology adapted to nature in the ancient southern Anhui dwellings.At present,the mixed townhouse buildings along the street have a large depth and poor lighting and ventilation effect in the middle.It is urgent to improve the light and wind environment in the townhouse by using the passive patio design.First of all,through the field investigation of the dwellings in southern Anhui and the field test of the indoor light environment and wind environment,the characteristics and functions of the courtyard space of the traditional dwellings are mastered,and the shortcomings of the lighting and ventilation in the wing rooms and row houses of the traditional dwellings are clarified.In the terrace housing in the south of anhui was designed on the basis of the original plan for the terrace housing in the south of anhui "回" word patio solutions and type vertical patio,"回" word patio design for open sunroof,patio is 3400 mm * 8900 mm " 回 " word,decorate stair inside the courtyard,old person room,living room and second lie are carried out on the patio window,raise the upper for enclosed design,highlight the second floor is2400 mm;The patio opens to the south,allowing residents to enter the patio for drying.The vertical patio is designed as an open-type flat skylight.The vertical layout of the patio is 2700mm×6500mm and is located in the west direction.The staircase is located in the north direction of the patio and the staircase opens the window to the patio.The upper part of the patio is enclosed design,highlighting the second floor2400mm;The open top of the patio at the level of the skylight facilitates the introduction of natural light and wind outside.Secondly,the indoor lighting simulation and indoor natural ventilation simulation of the original plan,the " 回 " type patio and the vertical patio of the townhouse in southern Anhui were carried out.Study indoor light environment with ECOTECT software;Wind environment by phoenics software.Finally,in terms of the building form coefficient,the shape coefficient of the "回" type scheme and the vertical scheme of the townhouse in Southern Anhui can meet the standard requirements.In terms of indoor light environment,the area ratio of side lighting window in the original scheme is less than 18.3%,which does not meet the requirements of the code.The area ratio of the light window at the top of the "回" type patio and the vertical patio is greater than 8.5%,which meets the requirements of the code.The area ratio of the light window at the top of the "回" type patio is 19.5%,slightly higher than the area ratio of the light window at the top of the vertical patio is11.6%.In the original scheme,the standard value of lighting coefficient of some rooms fails to meet the standard requirements and the lighting distribution of each room is uneven.The rooms in the "回" type patio and the vertical patio can meet the standard requirements,and the indoor lighting distribution is more uniform.The lighting standard value of the "回" type patio is higher,and the indoor lighting of the "回" type patio is slightly better than that of the vertical patio.In terms of indoor wind environment,the indoor wind speed level of the original plan,"回" type patio and vertical patio are all below 1m/s to meet the requirements of the code.As far as the ventilation frequency is concerned,the ventilation frequency of some rooms in the original scheme does not meet the specification requirements of 1 time /h.The room in the " 回 " type patio and the vertical type patio can meet the specification requirements.The ventilation frequency of the " 回 " type patio is mostly about 40 times /h,while the ventilation frequency of the vertical type patio is basically about30 times /h.In comparison,the indoor natural ventilation effect of the "回" type patio is better.The two design schemes of " 回 " type scheme and vertical patio scheme are suitable for residents in southern Anhui.These two designs are universal and applicable to the design of dwellings with similar climatic conditions,topographic requirements and production and living needs,and are no longer limited to southern Anhui.