基于建筑负荷的微型热电联产系统性能分析

doi:10.11949/j.issn.0438-1157.20150709

化工学报 ›› 2015, Vol. 66 ›› Issue (S2): 364-370.DOI: 10.11949/j.issn.0438-1157.20150709

基于建筑负荷的微型热电联产系统性能分析

李岩学¹, 阮应君¹, 刘青荣²

1. 同济大学机械与能源工程学院, 上海 200092;
2. 上海电力学院能源与机械工程学院, 上海 201300

收稿日期:2015-05-26 修回日期:2015-06-04 出版日期:2015-08-31 发布日期:2015-08-31
通讯作者: 阮应君

Performance analysis of micro combined heat and power system based on building load

LI Yanxue¹, RUAN Yingjun¹, LIU Qingrong²

1. Mechanical Engineering School of Tongji University, Shanghai 200092, China;
2. School of Energy Sources and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 201300, China

Received:2015-05-26 Revised:2015-06-04 Online:2015-08-31 Published:2015-08-31

摘要/Abstract

摘要：

微型热电联产是节能减排的有效途径。主要针对微型热电联产系统,通过设定参照对象建立热力学模型分析用能效果,并在微型热电联产机组匹配用户负荷条件下分析用户热电比及电网购电比例对联产系统节能潜力的影响。同时结合实测某办公楼供热季度的热电负荷特征确定微型热电联产系统方案,计算发现供热季联供方式日均节能率可达22.76%~23.16%,联供系统中原动机的效率可达48.06%。

关键词: 微型热电联产, 天然气, 热电比, 节能率, 建筑负荷, 热力学, (火用)

Abstract:

Micro combined heat and power(MCHP)is an effective way of energy conservation.This article mainly aims at establishing a thermodynamic model and analyzing the energy efficiency of micro congeneration system by setting the reference object.Analyze the impact of user's heat to power ratio and purchasing electricity quantity from public grid on CHP energy saving potential under integrating the building load.In this paper,analysis was carried out by importing the MCHP into an office building based on the measured heating and power load characteristics.Calculation was found that the average daily energy saving ratio can reach up to 22.76%-23.16%,the unit exergy efficiency can reach 48.06% in congeneration system during the heating season.

Key words: MCHP, natural gas, heat to power ratio, energy saving ratio, building load, thermodynamics, exergy

中图分类号:

TK01⁺9

李岩学, 阮应君, 刘青荣. 基于建筑负荷的微型热电联产系统性能分析[J]. 化工学报, 2015, 66(S2): 364-370.

LI Yanxue, RUAN Yingjun, LIU Qingrong. Performance analysis of micro combined heat and power system based on building load[J]. CIESC Journal, 2015, 66(S2): 364-370.

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基于建筑负荷的微型热电联产系统性能分析

Performance analysis of micro combined heat and power system based on building load

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