共查询到16条相似文献,搜索用时 46 毫秒
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由于我国北方地区室外环境温度在冬季时不能满足室外公共交通型自动扶梯关键部件的设计使用温度范围,因此需要给自动扶梯加装加热装置。对机房、梳齿、梯路、扶手带等关键部件的加热装置和加热控制方式进行了探讨,并给出了室外公共交通型自动扶梯的加热装置的配置建议。 相似文献
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卷烟机供料系统料斗滤网堵塞引起了卷烟机断料停机,对卷烟原辅材料消耗有明显影响。本文通过全面介绍改造料斗滤网装置,寻求一种减少断料停机、降低原辅料消耗的新方法,并从理论及实验两个方面论证了这种新方法的可行性和有效性。 相似文献
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《Planning》2013,(10)
连续重整装置是石化企业的重点耗能装置,同时也存在着一定的节能空间。某石化企业连续重整装置反应氢油比高于设计值,导致装置能耗较高,通过适当降低反应氢油比试验,降低了循环氢压缩机蒸汽耗量,使装置能耗显著降低。 相似文献
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通常,自动扶梯的使用环境温度在0℃以上。而在我国东北地区,冬季室外温度有时达到-25℃以下,这样寒冷的气候可能会使自动扶梯不能正常运转。为保证在0℃以下低温环境的自动扶梯能够正常运转,需要在自动扶梯内部增设专用的加热装置来提升自动扶梯部品的温度,从而达到各部品使用温度范围的要求。 相似文献
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《Energy and Buildings》2006,38(1):63-71
The heat consumption in a large geographical area is considered together with climate measurements on a single location in the area. The purpose is to identify a model linking the heat consumption to climate and calendar information.The process of building a model is split into a theoretical based identification of an overall model structure followed by data-based modelling, whereby the details of the model are identified. This approach is sometimes called grey-box modelling, but the specific approach used here does not require states to be specified. Overall, the paper demonstrates the power of the grey-box approach. 相似文献
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刘婷婷 《四川建筑科学研究》2015,(2):284-288
提出了一种简单易行的地表水源热泵空调系统供暖能耗评价方法,即采用逐日累加法计算系统制热季节性能系数(HSPF),文中详细介绍了该方法的计算步骤。利用夏热冬冷地区某地表水源热泵工程作为算例,采用逐日累加法进行了系统的供暖能耗评价,HSPF达最大值时的供暖模式即为最优供暖模式,据此可对冬季热泵机组运行台数和辅助加热进行最优调节。分析了机组热水出水温度、室内设定温度、气象条件对HSPF值及供暖耗电量的影响。这种方法对地表水源热泵空调系统的设计具有一定的指导意义,避免了选择机组的盲目性。 相似文献
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大家好!林润泉同志曾经向我汇报《低温辐射电热膜》标准的编制工作,我对这项工作非常支持。我们国家经济发展模式要转型,要提高到一个新的历史阶段。在这个历史阶段里,用科学发展观来指导我们的一切工作,要发展科学技术,进行科技革命。新的科技革命将对经济 相似文献
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阐述了一种热管/平板双重集热型太阳能冷热联供装置的设计及工作原理,并对该复合装置进行了热力分析和数值模拟。结果表明,在日总太阳辐射照度为15 MJ/(m2·d)的条件下,该太阳能冷热联供装置制冷系数可达0.181。供热效率为0.335;日总太阳辐射照度为12 MJ/(m2·d)的条件下,该装置可用作单一的太阳能热水器,其供热效率可达0.413。 相似文献
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Olivia Guerra Santin 《Energy and Buildings》2011,43(10):2662-2672
The difference between the actual and predicted energy consumption for heating in housing is thought to be partly attributable to the use of HVAC systems. More reliable data on energy consumption could help in determining the actual energy performance of dwellings and in the search for the most adequate design for housing and home amenities. Further reductions on energy consumption might also be achieved if energy-saving policy programmes were geared to different household groups. The aim of this paper is to statistically determine Behavioural Patterns associated with the energy spent on heating and to identify household and building characteristics that could contribute to the development of energy-User Profiles. This study had two outcomes: it identified Behavioural Patterns to be used in energy calculations and it discerned User Profiles with different behaviours. Five underlying groups of behavioural variables were found, which were used to define the Behavioural Patterns and User Profiles. The groups showed statistically significant differences in the scores for most of the behavioural factors. This study established clear relationships between occupant behaviour and household characteristics. However, it seems difficult to establish relationships between energy consumption and Behavioural Patterns and household groups. 相似文献
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供热计量中的几个问题 总被引:13,自引:3,他引:10
认为热计量方式的采用,使传统的户内供暖系统发生了很大变化,提出:散热量可自动调节是计量供热的前提;宜提倡按户分环式的计量供热系统;由于行为节能的引入可能会造成户内系统立管上压差产生剧烈变化,因此立管上宜设置必要的恒压差、恒流量阀;应该注意暖气罩对计量供热的影响。 相似文献
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