共查询到20条相似文献,搜索用时 78 毫秒
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二次回风系统常用于座椅下送风,以满足送风温度较高的要求,其控制策略直接关系到室内温湿度环境及节能效果.通过对一、二次回风系统运行能耗的比较,介绍了某体育馆比赛大厅观众区二次回风空调系统的系统设置及其自控策略.分析了二次回风系统在该条件下的节能效果. 相似文献
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介绍了模糊控制技术在一交响乐厅二次回风空调系统中的应用。针对该工程实际情况提出了完整的控制策略,设计了新风阀、二次回风阀和冷水阀的模糊控制器,以保证室内温湿度和空气质量达到设计要求。以建筑物集成管理系统为操作平台,在中央管理计算机上实现了各设定值的优化,由现场DDC完成闭环控制。 相似文献
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《Planning》2014,(7)
空调系统按照不同的回风可以分为一次回风系统和二次回风系统,本文着重分析了目前工业和民用建筑中使用最为普遍的一次性回风空调系统,主要分析了其主要的特点和优点,对一次性回风空调系统进行了较为详细的分析,期望通过本文的分析,能够为一次性回风空调系统的认识应用提供一定的参考意见。 相似文献
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简要介绍了空调系统机器露点温度的迭代算法及其在空调系统计算机辅助分析中的应用,给出了该算法程序的N-S流程图和分析步骤。实际计算结果表明该迭代算法程序简单、通用性好、结果可靠。 相似文献
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净化空调系统中,送风量普遍较大,送风温差较小。二次回风空气处理系统在净化空调系统中有很好的实用意义。文章通过分析对比一次回风系统与二次回风系统,以求得到既节能又应用良好的空气处理系统。 相似文献
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针对当前医院手术部空调系统能耗大的问题,提出较为经济节能的空调系统方式。从空调负荷与调节控制方面,对使用定二次回风风量的二次回风系统与传统的一次回风系统进行比较。结果表明,较一次回风系统,使用定二次回风风量的二次回风系统空调负荷较小,Ⅰ级手术室节省了154.21%,Ⅱ级的节省49.3%,Ⅲ级的节省24.77%,Ⅳ级的节省12.15%。 相似文献
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空调系统能耗分析与节能设计探讨 总被引:2,自引:0,他引:2
本文结合工程实例,运用不同能耗计算方法,对其能耗指标进行分析比较与评价,为实现空调系统节能设计提供参考;同时从空调系统节能设计和运行的多个角度,探讨空调系统的实用节能措施,以实现整体建筑节能。 相似文献
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A study was carried out to investigate the effect of heat-pipe air-handling coil on energy consumption in a central air-conditioning system with return air. Taking an office building as an example, the study shows that compared with conventional central air-conditioning system with return air, the heat-pipe air-conditioning system can save cooling and reheating energy. In the usual range of 22–26 °C indoor design temperature and 50% relative humidity, the RES (rate of energy saving) in this office building investigated is 23.5–25.7% for cooling load and 38.1–40.9% for total energy consumption. The RES of the heat-pipe air-conditioning system increases with the increase of indoor design temperature and the decrease of indoor relative humidity. The influence of indoor relative humidity on RES is much greater than the influence of the indoor design temperature. The study indicates that a central air-conditioning system can significantly reduce its energy consumption and improve both the indoor thermal comfort and air quality when a heat-pipe air-handling coil is employed in the air-conditioning process. 相似文献
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Alireza Ghanbari Mohammad Navid Kardani Ali Moazami Goodarzi Milad Janghorban Lariche 《国际自然能源杂志》2020,41(7):775-782
ABSTRACTHydrate formation and water accumulation during transmission process can be prevented by effective dehydration of gas streams. This study investigates the application of multi-layer perceptron artificial neural network to estimate natural gas dew point temperature using contactor temperature and TEG purity as independent variables. A dataset comprised of 173 data points is extracted from the literature. The proposed model is considered a great help for engineers to have precise dew point temperature predictive tool in wide ranges of concerning variables. Results obtained from the proposed model show R-squared and mean square error of 1.000 and 0.156, respectively. Accordingly, the remarkable agreement between predicted and experimental values is observed. 相似文献
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空调大温差研究(2):空调大温差送风系统设计方法 总被引:8,自引:4,他引:4
提出用定露点法计算常规空调大温差系统,逐项介绍了设计步骤;认为定露点法不但可以较准确地控制室内设计参数,掌握室内实际空气状态,而且可以利用计算机,使大温差送风的设计计算更加简捷、直观。强调采用定露点法计算时,单个系统不宜过大,热湿比不同的房间宜采用不同的空调系统,空调机组风量或风压较大时,宜采用风机压出式布置。 相似文献
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Dew point evaporative cooling system is an alternative to vapor compression air conditioning system for sensible cooling of ventilation air. This paper presents the theoretical performance of a novel dew point evaporative cooling system operating under various inlet air conditions (covering dry, moderate and humid climate) and influence of major operating parameters (namely, velocity, system dimension and the ratio of working air to intake air). A model of the dew point evaporative cooling system has been developed to simulate the heat and mass transfer processes. The outlet air conditions and system effectiveness predicted by the model using numerical method for known inlet parameters have been validated with experimental findings and with recent literature. The model was used to optimize the system parameters and to investigate the system effectiveness operating under various inlet air conditions. 相似文献
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介绍了空调房间室内温度控制的途径和方法,分析了空调房间内空气计算参数温度对热舒适性和建筑能耗的影响,指出在一定温度和湿度的范围内,通过提高室内温度的途径来减少空调系统能耗的方法。 相似文献