共查询到19条相似文献,搜索用时 140 毫秒
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许穗民 《建筑热能通风空调》2021,40(7):44-47,19
实验室常以全新风空调工况运行,普遍存在空调系统能耗高的问题,节能潜力较大.本文以某药品检验所项目为例,阐述了该项目实验室通风空调系统设计及主要应用技术,实验室夏季分设高低温新风系统,通风系统采用变风量控制.通过对该案例的计算分析,强调了实验室通风空调设计节能技术应用的重要性. 相似文献
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介绍了某汽车零配件生产厂房的空调冷热源、空调系统及通风系统设计。本着节能减排的原则,结合项目所在地实际情况及生产工艺需求,采用适宜项目的冷热源系统及空调系统,并对其进行了分析与探讨。 相似文献
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基于医学实验室负荷及其运行特点,分析了医学实验室空调通风系统的能效提升技术,包括排风能量回收、被动式新风机组、通风系统划分及控制等。重点围绕占实验室能耗比例较大的新风系统,结合项目案例,针对不同技术的特点、适用场合、节能效果评价及设计要点进行了分析。 相似文献
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通风与空调系统节能性能现场检测方法及节能性能分析 总被引:1,自引:0,他引:1
本文介绍了通风与空调系统节能性能检测的目的及具体方法,从而引申出通风与空调系统节能检测对建筑节能的重要性并对其节能检测进行探讨。 相似文献
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G. Mageshwaran G. Britto Joseph Tallapaneni Sivaji Vulchi Ravi Teja Maruthairaja 《国际自然能源杂志》2018,39(7):719-725
Nowadays, global warming, environment pollution, and limitations in energy resources have appeared as a serious global crisis. Therefore, energy efficiency and energy conservation are necessary in all energy-consuming devices, such as heating, ventilating, and air conditioning (HVAC) systems. The aims of this project are to evaluate the performance and energy conservation of a conventional air conditioning system and also compare its performance with the proposed HVAC system, which consists of a heat recovery unit to reduce the initial capital cost and electricity consumption of the system. Through hour-by-hour simulations, the annual energy consumptions of these two systems have to be calculated and analysed. A CO2-based demand controlled ventilation strategy offers a great opportunity to reduce additional energy consumption in the above HVAC systems, while providing the required ventilation. 相似文献
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Sébastien Cordeau 《Energy and Buildings》2010,42(8):1301-1308
At the present consumption rate, world fossil-fuel reserves are expected to be depleted by 2050 unless their consumption is optimized and supplemented with renewable energy sources. The objective of this project was to evaluate the performance of a simple data acquisition system installed to conduct an energy balance and identify energy saving strategies in two commercial broilers barns with ventilation air solar pre-heaters. Located near Montreal, Canada, the two identical barns were instrumented for inside and outside air conditions, ventilation rate and energy recovery by the solar air pre-heaters. Whereas the temperature, relative humidity and radiation sensors were reliable, inside air temperature stratification complicated energy balance analyses and broiler heat production rate calculations. Lack of room air mixing resulted in the loss of 25 and 15% of the generated heater load and recovered solar energy. The proper monitoring of all environmental conditions required their measurement every 5 rather than 20 min. Instead of using a data transmission service found to be unreliable in rural areas, all data loggers were downloaded onto a portable computer every 45 days during regular instrument maintenance. Accordingly, room air mixing is recommended to facilitate energy balance studies and improve the efficient use of heating energies. 相似文献
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为了探讨夏热冬暖地区开敞式大空间建筑的节能改造措施,以广州市某实际工程为例,应用Fluent软件,对自然通风、置换通风、遮阳、屋顶淋水降温的节能效果进行了定性分析,并应用DeST软件模拟了全年能耗。分析了自然通风与空调系统联合工作时的室内温度和速度场,并给出了室内温湿度的实测数据。结果表明:在该工程中,自然通风、置换通风、遮阳挡板和屋面淋水技术可明显改善室内热环境,同时降低建筑能耗;下沉式地面有利于增强室内置换通风效果;通过采用被动节能技术合理设计后,建筑节能率达61.9%。 相似文献
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论述了暖通空调系统的节能问题,明确了在暖通空调领域节能的重要意义,分析了现行暖通空调系统在节能方面存在的主要问题,提出了在暖通空调领域节能的方法与途径,从而实现大幅度节能,产生显著的环境效益和社会效益。 相似文献
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自动月台闸门系统及月台屏蔽门系统由于其安全性在许多城市的地铁中已被应用.对于这两种方法,有时难以决定哪一个是对莱一项目更好.基于实验数据,对动态和瞬态条件下由列车引入的空气对地铁车站及地铁站的舒适性进行了研究分析.地铁站及自动台月闸门系统显示的舒适度、吸气颗粒和噪声量满足了标准要求.对空调制冷负荷和两种地铁站的通风能耗进行了能耗预测.当使用自动月台闸门系统时通风设备的电力消耗明显增加,尤其是消耗在平台排风扇下的能量.因此,自动月台闸门系统与自动屏蔽门系统在能耗上无明显差别.自动月台闸门系统能够满足短暂停留乘客的舒适性.由此可以得出结论,自动月台闸门系统比屏蔽门系统更好. 相似文献
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现代建筑中自然通风技术的应用 总被引:2,自引:0,他引:2
自然通风是指利用空气的温差引起的热压或风力造成的风压来促使空气流动而进行的通风换气.在建筑中合理地利用自然通风技术,有利于节约能源,改善室内生态环境.主要介绍了现代建筑中自然通风技术的原理和应用方式,以及影响自然通风的相关因素和限制条件. 相似文献
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从通风与空调运行能耗的角度对《建筑节能工程施工质量验收规范》GB50411-2007中通风与空调工程现场节能检测的相关条款进行了分析,并提出增加相关检测项目以完善通风与空调工程节能性能现场检测。 相似文献