排序方式: 共有56条查询结果,搜索用时 15 毫秒
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论述了241.5cm JC5.9/5.9 866/905.5直贡织物的生产工艺,针对该产品纱支细、密度高,纺纱和织造难度大的特点,采取了相应措施,取得了较好效果,入库一等品率达99%。 相似文献
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细特全棉莱卡直贡缎的开发实践 总被引:1,自引:1,他引:0
从原料的选择、整经、浆纱、织造等方面对细特全棉莱卡直贡缎的生产工艺作了论述,成纱要求条干均匀、单强高、毛羽少、弱环少;整经应保证经纱张力,排列、卷绕均匀,适当增大卷绕密度;浆纱应侧重增加耐磨性,被覆毛羽;伸长率偏大掌握以减少织造时由于织物交织点少而产生的经缩浪纹;织造时要调整喷气引纬参数,例如降低喷气压力、延长喷射时间以避免“赤膊丝”及纬缩疵布。 相似文献
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本文从隔热和采光性能出发,研究了建筑百叶对室内制冷能耗和照明能耗的综合影响,并提出以光热综合能耗来全面评估其节能性。依据软件模拟无遮阳、45°以及90°开启百叶三类模型在夏季典型目的制冷负荷与所需光通量.计算出建筑窗体引起的光热综合能耗。结果表明:在使用光效较低的灯具时,90°开启百叶比无遮阳情况节能13%.而使用光效... 相似文献
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This article presents the application of the zonal approach for modeling airflow and temperature in a ventilated double skin facades (DSF). The zonal airflow equation, power-law, was employed to calculate the airflow through the shading device and cavities. The zonal energy equation was used to evaluate the temperature distribution in the DSF system. The predicted temperature distributions were verified using measured values and parametric studies were conducted to identify the influence of height, flow rate and presence of venetian blinds on the inlet–outlet temperature difference. The influence of changing the values of each parameter was found to be more apparent during the day than during the night. The inlet–outlet temperature difference increased as height of the DSF increased and when venetian blinds were installed but it was found to decrease as the airflow rate increased. The results had revealed that the zonal approach can be employed to provide information on the performance of DSF faster and at very low computational resource. 相似文献
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本文着重介绍了世博会“沪上·生态家”所采用的几种不同类型的遮阳产品和遮阳技术以及综合节能效果分析。 相似文献
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户外遮阳产品的遮阳隔热节能功能已得到业界的认可并被广泛用于建筑设计中,但对于部分遮阳产品的自然采光功能认识不够.本文就户外百叶帘叶片对自然光线的反射、折射现象进行了简单直观的分析. 相似文献
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从分析黄山市的地域特性、气候特点和该地区的徽派建筑特色出发,从徽派建筑的传承和发展角度,结合新能源太阳能技术,建筑节能理念,利用徽派建筑大面积的南立墙面和遮雨(阳)檐的遮挡效果,将百叶型太阳能集热墙和遮雨(阳)檐相结合,在冬季和夏季时不同的工作模式下,能增加冬季时的采暖效果和夏季的通风效果,加强徽派建筑特色的保护和传承. 相似文献