CAJ | 학술논문

高温高湿大空间造纸厂房夏季闷热、冬季围护结构结露滴水,影响纸张正常生产.实地测量了厂房围护结构热工性能、通风、温湿度分布及造纸机械散热散湿,并对厂房进行数值模拟,分析围护结构结露原因.分析表明:厂房屋顶和侧墙交界处,湿部屋面,侧墙侧窗及天窗等区域最容易结露.排热除湿通风方式中,在湿部操作区侧墙加局部排风效果最佳.加强上述区域保温及减少玻璃窗数量,以及在侧墙加局部排风是防止围护结构结露的有效方法.在实际工程中采用这些措施后,减少了围护结构结露.
고온고습대공간조지엄방하계민열、동계위호결구결로적수,영향지장정상생산.실지측량료엄방위호결구열공성능、통풍、온습도분포급조지궤계산열산습,병대엄방진행수치모의,분석위호결구결로원인.분석표명:엄방옥정화측장교계처,습부옥면,측장측창급천창등구역최용역결로.배열제습통풍방식중,재습부조작구측장가국부배풍효과최가.가강상술구역보온급감소파리창수량,이급재측장가국부배풍시방지위호결구결로적유효방법.재실제공정중채용저사조시후,감소료위호결구결로.
In large-space paper-making plants with high temperature and humidity, it was muggy in summer and building envelope was dewing in winter, which affects the production of papers. To analyze the condensation of plant envelope, thermal performance, ventilation, temperature and humidity distribution, heat and wet dissipation were investigated, and the plant was numerically simulated. The juncture of the roof and sidewall, ceiling-wall and the windows of wet department were prone to condensation. Adding local ventilation in operation-side wall of wet department was the optimal ventilation that removed heat and wet. Enhancing the insulation of envelope, reducing glazed windows and adding local ventilation in sidewall were effective methods to prevent plant envelope condensation. It has been shown that this is an effective measure for condensation prevention in practical cases.