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考虑供热系统建模的综合能源系统最优能流计算方法 被引量:61
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作者 张义志 王小君 +1 位作者 和敬涵 高文忠 《电工技术学报》 EI CSCD 北大核心 2019年第3期562-570,共9页
随着社会经济的发展与技术的进步,综合能源系统已成为未来能源领域变革的重要发展趋势之一,其中以热电联供为代表的电热耦合综合能源系统发展迅速。电热系统的联合优化可以提高燃料利用效率,节省运行成本,但当前电热耦合系统能流研究主... 随着社会经济的发展与技术的进步,综合能源系统已成为未来能源领域变革的重要发展趋势之一,其中以热电联供为代表的电热耦合综合能源系统发展迅速。电热系统的联合优化可以提高燃料利用效率,节省运行成本,但当前电热耦合系统能流研究主要针对于电力系统,对供热系统的管网特性、热负荷与用户温度需求的关联特性考虑得还不够精细,无法充分反映电热系统的实际运行特性。该文基于热力管网支路特性及散热器、换热器等关键设备的稳态模型,考虑供热系统能量传输与管网约束,建立了供热系统稳态能流计算的精细化模型。在此基础上,以热电联供机组电热出力与电锅炉出力为调节变量,提出了一种基于内点法的电热耦合综合能源系统最优能流求解方法,能够更加准确地反映系统运行特性并实现系统经济运行。最后进行算例测试,验证所提最优能流计算方法的可行性与有效性。 展开更多
关键词 供热系统模型 综合能源系统 最优能流 内点法
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Effects of personal heating on thermal comfort:A review 被引量:1
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作者 TIAN Xiao-yu LIU Wei-wei +2 位作者 LIU Jia-wei YU Bo ZHANG Jian 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第7期2279-2300,共22页
Personal conditioning system(PCS)is receiving considerable attention due to its energy-saving potential and the ability to satisfy individual comfort requirements.As a part of PCS,personal heating systems can maintain... Personal conditioning system(PCS)is receiving considerable attention due to its energy-saving potential and the ability to satisfy individual comfort requirements.As a part of PCS,personal heating systems can maintain human thermal comfort in cold environments,which leads to their potential role of important heating mode in cold winter,especially in the Hot Summer and Cold Winter regions of China.In order to better promote the development and application of personal heating systems,this paper reviews the published studies.Personal heating systems can be divided into four types based on the mode of heat transfer:conductive,convective,radiative and combinative type.Characteristics of each category and respective devices are introduced.Furthermore,identifying the effects of personal heating on thermal comfort and the models for predicting or evaluating thermal comfort during local heating.This paper would provide users with a guideline for choosing suitable heating equipment during winter. 展开更多
关键词 personal conditioning system personal heating thermal comfort evaluation models built environment
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