共查询到20条相似文献，搜索用时 218 毫秒
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本研究针对电厂冷却塔领域的能源成本及水资源短缺等问题，系统分析了新兴竹格淋水填料的节能效率及对环境影响等特性，并与市场占有率最高的PVC填料进行了对比。结果发现，竹格填料的阻力性能优于PVC填料，而热力性能较差；在6个月实际应用试验中，使用竹格填料的电厂，比使用PVC填料节约529.2 t标煤；生命周期评价结果显示，PVC填料的能源需求总量（CED）为3 420 MJ，竹格填料的能源需求总量仅为561 MJ，比PVC填料减少6倍；从环境影响指数（BEES）看，PVC填料替换为竹格填料后，各主要影响指标降低了1.5~10.5倍不等。结果表明，竹格填料是替换PVC填料的良好选择，具有很好的推广价值。 相似文献
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新型竹建筑材料的开发利用 总被引：10，自引：3，他引：7
将竹材制成各种不同性能的新型建筑材料在中高档房屋建造、建筑装修装饰等方面具有十分重要的意义。本文主要介绍了目前竹材在建筑行业中的应用现状及几种新型的竹材建筑材料的生产技术。新型的竹材建筑材料包括:高档房屋建筑中承重结构材、天花板及墙体材料、竹材门窗材料、建筑装修、装饰材料及地板材料等。 相似文献
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毛竹填料生物膜法处理废水的试验研究和应用 总被引：5，自引：0，他引：5
通过比较毛竹制成的生物填料与普通塑料填料在废水处理中的应用效果发现:生物填料在挂膜速度和挂膜量上具有一定的优势,且可提高污水处理效率5% ～ 8%. 相似文献
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简述了几种碳系导电填料的种类特性及其在木塑复合材料中的导电机理;分析了影响碳系导电填料在木塑复合材料中作用效果的几大因素,包括添加量、种类、形态和尺寸、复配、分散性以及制备工艺和成型方法等;提出抗静电木塑复合材料在实际应用中存在的问题,并探讨未来研究方向。 相似文献
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膨润土作人造板胶粘剂填料初试童汉星（福建省武平县胶合板厂）在人造板生产中，填料是胶粘剂的重要组成之一．在胶粘剂中适当添加填料。不仅可以减少胶液用量，降低用胶成本，而且能够改善胶粘剂的性能．目前，胶粘剂常用的填料有面粉。豆粉、木粉、树皮粉等。用无机矿物... 相似文献
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Thermal-softening properties and cooling set of water-saturated bamboo were investigated using stressrelaxation measurements
in heating and cooling processes, followed by residual deflection measurement. In the heating process, an obvious decrease
in relative relaxation modulus due to thermal-softening of lignin was found at around 60°C. On the other hand, no clear change
in the relative relaxation modulus was recognized in the cooling process. After the cooling process, about 65% and 75% of
residual set was measured when the specimen was loaded on the epidermis and endodermis side, respectively. Also, residual
set depended on the maximum temperature reached in the heating process and the unloaded temperature in the cooling process.
From these results, it was deduced that the glass transition of lignin from the rubbery to glassy state is important to fix
the deformation. Comparing thermal-softening behavior between bamboo and wood, the relative relaxation modulus of wood decreased
steeply at higher temperatures than for bamboo. On the other hand, while about 75% of residual set was also found for wood,
almost the same as for bamboo, the recovery of deformation with time was larger for wood than for bamboo.
Part of this article was presented at the 53rd Annual Meeting of the Japan Zairyou Society, Okayama, May 2004 相似文献
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介绍了空调系统冷却塔的制冷原理，提出了用冷却塔进、出水温差给T2航站楼供冷的具体措施。 相似文献
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北方某电厂拟建一座自然通风冷却塔,冷却面积是1 000m2,主压力管道是Φ1220mm,计划将现有的玻璃钢水塔做为备用;现根据建设单位提供的参数,核算拟建冷却塔参数是否满足设计要求。 相似文献
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野生龙竹笋真空软包装加工工艺的研究 总被引：3，自引：0，他引：3
本文对云南特有的野生龙竹竹笋为加工原料,根据其特性,以保持野生龙竹竹笋风味,营养及色泽为原则,脱除了其苦涩味,防止了白色沉淀的析出,确定了采用常压杀菌进行竹笋软包装加工的工艺路线。其主要工艺参数是:在100℃条件下蒸煮30min,流水漂洗4h,装袋复煮15min,在真空度0.08~0.09 Mpa下抽真空,100℃杀菌90min,再经冷却、恒温检验、包装即可得到真空软包装野龙竹笋,所制成品达到长期保存的效果。 相似文献
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竹席胶合板是竹材人造板生产中历史最长,工艺最成熟、用途最广的一种板材。竹席胶合板的胶合强度一般是木材胶合板的1—1.5倍,其价格仅为木材胶合板的1/2—1/4;竹席胶合板弹性、韧性大,易弯曲,用其制造的出口标准件包装圆桶强度大,耐破性能好,破损率低,使用寿命长;击穿、压溃、自由跌落等指标均优于木材胶合板标准件圆桶;其缺陷为:印刷性能差,吃墨浅,干燥慢,字迹欠清。 相似文献
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Masamitsu Nakajima Yuzo Furuta Yutaka Ishimaru Makoto Ohkoshi 《Journal of Wood Science》2009,55(2):100-106
To clarify the bending properties and cooling set for bamboo under large deformation, the relationship between applied deflection
and residual deflection was investigated, and comparison was made with the results of thermal recovery and anatomical changes
due to deformation. No clear effect of initial deflection on set measured after a long time was found for wood and bamboo
loaded on the epidermis side (Bepi). On the other hand, set for bamboo loaded on the endodermis side (Bendo) increased with deformation level. Recovery from the deformation with time for Bendo was almost complete at around 1000 min
after unloading in the three-point bending method. This recovery behavior was not seen for Bepi or wood. It was considered
that no failure was caused in the bent specimen, because most of the deformation was completely recovered by reheating to
the temperature at which the specimens were deformed before cooling. The recovery from deformation for Bendo loaded by the four-point bending method continued even after 1000 min. From microscopic observations, shearing deformations
were seen for Bendo loaded by the three-point bending method. From these results, it can be considered that shearing deformations
between the two loaded points effectively contribute to decreased recovery force from deformations for Bendo.
Part of this report was presented at the 54th Annual Meeting of the Japan Wood Research Society in Sapporo, August 2004 相似文献
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The objective of this study was to find an effective method for treating ma bamboo (Dendrocalamus latiflorus) and moso bamboo (Phyllostachys pubescens) using new water-based reagents containing copper. The effects of green-color protection using various treatments on bamboo
culms were examined in this study. Two methods were used: heating in a water bath and ultrasonic dipping. The results revealed
that excellent green-color protection (a* value of −6.2) was obtained when ma bamboo culms were treated with 0.25% ammoniacal copper quaternary compound-type B (ACQ-B)
in a water bath at 100°C for 2 h. It was also found that the wettability of bamboo epidermis increasedsignificantly after
pretreatment in a mixture of 1% KOH and surfactant in a water bath at 100°C for 30 min. Furthermore, pretreated moso bamboo
culms exhibited excellent green-color protection after they were treated with 0.25% ACQ-B at 100°C for 2 h (a* value of −8.2). This novel treatment method definitely endows the bamboo culms with a fascinating green skin color and consequently
could increase the economic value of bamboo products. No improvement in green-color protection was found when ultrasonic energy
was added to the water bath at ambient temperature. 相似文献