直接接触式固体蓄热电锅炉的能效?分析
Energy Efficiency Analysis of Direct Contact Solid State Thermal Storage Electric Boilers
郭桃桃 1米元 1贾致雯 1高红 1师涌江2
作者信息
- 1. 河北建筑工程学院,河北张家口 075000
- 2. 河北建筑工程学院,河北张家口 075000;张家口市可再生能源储热装备与利用重点实验室,河北张家口 075000;张家口市可再生能源供热工程技术研究中心,河北张家口 075000;河北省储能供热技术创新中心,河北张家口 075000
- 折叠
摘要
能效评价是热源能源利用效果的重要体现,传统的固体蓄热电锅炉由于空气的比热容小且需要多级换热,会降低系统的换热效率,直接接触式固体蓄热电锅炉技术提高了热源的换热效率,但缺乏一套完备的能效评价标准.使用㶲分析法展开分析,掌握热源运行参数及能量转换关系,确定㶲分析模型并计算,获取其能效评价指标;再运用集值统计法确定指标权重,模糊综合评价确定其评分及等级,形成该直接接触式电锅炉的能效评价体系;最后结合热力学理论分析并利用具体实验验证该评价体系的合理性,为直接接触式固体蓄热电锅炉技术改进及推广发展提供参考.
Abstract
Energy efficiency evaluation is an important manifestation of the effect of heat source energy use,the traditional solid thermal storage electric boiler due to the small specific heat capacity of air and the need for multi-stage heat transfer,which will reduce the heat transfer efficiency of the sys-tem,direct contact solid thermal storage electric boiler technology improves the heat transfer effi-ciency of the heat source,but the lack of a complete set of energy efficiency evaluation standards.The analysis is carried out using the energy analysis method to grasp the operating parameters of the heat source and the energy conversion relationship,determine the energy analysis model and calculate to obtain the energy efficiency evaluation index;then use the combination of weighting and other methods to determine the weight of the index,the fuzzy comprehensive evaluation to de-termine the score and level,to form the energy efficiency evaluation system of the direct-contact e-lectric boiler;and finally,combined with the theoretical analysis of thermodynamics and the use of specific experiments to validate the reasonableness of the evaluation system,to provide a compre-hensive set of evaluation criteria for the direct-contact solid heat storage electric boiler.Finally,the evaluation system is combined with thermodynamic theory analysis and specific experiments to verify the reasonableness of the evaluation system,which provides a reference for the technical im-provement and promotion of the development of direct-contact solid heat storage electric boiler.
关键词
固体电蓄热锅炉/能效评价/㶲分析/集值统计法Key words
Solid state electric storage boilers/Energy efficiency evaluation/Permutation analysis/Set-valued statistics引用本文复制引用
基金项目
河北省科技厅科技研发平台建设专项—河北省储能供热技术创新中心绩效补助经费(225676106H)
出版年
2024
NETL
NSTL
万方数据