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基于等效热模型的供冷建筑RLS-KF室温预测方法 被引量:3
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作者 闫军威 石凯 周璇 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 2018年第10期42-49,共8页
针对当前大型供冷建筑室温预测方法精度不高,难以满足空调系统节能优化控制的问题,提出基于等效热模型的递推最小二乘辨识-卡尔曼滤波(RLS-KF)室温预测方法.为了描述建筑的非稳态热工特性,通过等效电路法建立三阶的建筑热模型,选择空调... 针对当前大型供冷建筑室温预测方法精度不高,难以满足空调系统节能优化控制的问题,提出基于等效热模型的递推最小二乘辨识-卡尔曼滤波(RLS-KF)室温预测方法.为了描述建筑的非稳态热工特性,通过等效电路法建立三阶的建筑热模型,选择空调冷负荷、室外温度和太阳辐射强度作为预测模型输入变量,并利用RLS算法在线辨识模型参数,同时针对单一RLS算法预测精度不高的问题,构造伪测量值,将KF算法应用于室温预测问题以提高预测精度.以广东某办公建筑供冷条件下室温为研究对象对文中方法进行验证,预测结果表明,RLS-KF算法较单一的RLS算法的预测精度和稳定性大幅提高,短期室温预测性能更为优越. 展开更多
关键词 建筑热模型 递推最小二乘辨识 卡尔曼滤波 伪测量值 室温预测
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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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