The Research Of Clean Workshop Envelope Energy-saving Technology Of Cold Region

Building energy efficiency is one of the focus of Energy saving strategy.Construction is divided into civil and industrial buildings (workshop). As the residentialbuilding energy efficiency design standards of different climate area and public buildingenergy efficiency design standards successively formulated and implemented, greatachievements have been made in civil building energy efficiency. Compared with thecivil building energy efficiency, the research of Industrial building energy conservationtheory is very lag. The energy-saving requirements are usually ignored in design andconstruction of industrial building. In addition, although some industry have set thecorresponding energy saving design standard, these standards have no way toimplement because of the lack of quantitative restrictions.Based on lots of investigation and data collection of industrial building palisadestructure, we summarizes the development history and realistic condition of industrialfactory building in cold region. Taking xi ’an as the research object, the calculation ofenergy consumption of a typical clean industrial workshop helped found the proportionof energy consumption of retaining structure (external wall, Door&window andground). The focus of energy saving design of the enclosure structure is external wall,roof and external window.Analysis of mature and widely used civil building enclosure structure energysaving measures in cold region, including the commonly used thermal insulationmaterials, exterior wall heat preservation technology, roof insulation technology andenergy-saving window. Preparing the theory of applying these technologies to industrial building palisade structure energy efficiency design.Taking a typical clean workshop as the research object. Determining the economicthickness of various kinds of thermal insulation material from the perspective of wholelife cycle with the help of dynamic energy consumption simulation software DeST.Respectively taking exterior wall, roof and window (including the window wall arearatio) as the research object, analyzing their comprehensive energy saving effectthrough calculating the payback period of the heat preservation measures. In all kinds ofwall thermal insulation material,80mm Extruded Polystyrene Board (XPS) achievesthe best energy saving effect, Followed by100mm Expanded Polystyrene Board (EPS).The energy-saving of roof insulation is more efficiency than exterior wall heatpreservation, and the roof insulation ability are roughly equal under the economythickness of heat preservation material. By contrast,100mm Expanded PolystyreneBoard (EPS) achieves the best energy saving effect. Keeping the window wall area ratiounchanged, Low-E Hollow glass achieves the best energy saving effect. Through theanalysis of the influence to energy consumption of the change of window wall area ratio,determining the appropriate window wall area ratio. Compared with the other envelope,the energy saving effect of the window is significant. The Low-E Hollow glass withwindow wall area ratio: the south0.50, the north0.15, the west0.30, theeast0.25achieves the best energy saving effect.Considering each component of envelope of plant energy consumption with thehelp of Uniform test method, the best enclosure structure combination scheme:80mmExtruded Polystyrene Board (XPS)+220mm Cement Polystyrene Board+Low-EHollow glass.