Generic load regulation strategy for enhancing energy efficiency of chiller plants

IF 6.1 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Building Simulation Pub Date : 2024-06-03 DOI:10.1007/s12273-024-1138-1
Hang Wan, Yuyang Gong, Shengwei Wang, Yongjun Sun, Tao Xu, Gongsheng Huang
{"title":"Generic load regulation strategy for enhancing energy efficiency of chiller plants","authors":"Hang Wan, Yuyang Gong, Shengwei Wang, Yongjun Sun, Tao Xu, Gongsheng Huang","doi":"10.1007/s12273-024-1138-1","DOIUrl":null,"url":null,"abstract":"<p>In many chiller plants, high coefficient of performance (COP) is only achieved at a few favorable part load ratios (PLRs), while the COP is low at many other non-favorable PLRs. To address this issue, this study proposes a generic load regulation strategy that aims to maintain chiller plants operating at high COP, particularly under non-favorable PLRs. This is achieved by incorporating thermal energy storage (TES) units and timely optimizing the charging and discharging power of the integrated TES units. The optimal charging and discharging power is determined by solving a dynamic optimization problem, taking into account the performance constraints of the TES units and the chiller plants. To provide an overview of the energy-saving potential of the proposed strategy, a comprehensive analysis was conducted, considering factors such as building load profiles, COP/PLR curves of chillers, and attributes of the TES units. The analysis revealed that the proposed load regulation strategy has the potential to achieve energy savings ranging from 5.7% to 10.8% for chiller plants with poor COPs under unfavorable PLRs, particularly in buildings with significant load variations.</p>","PeriodicalId":49226,"journal":{"name":"Building Simulation","volume":"128 1","pages":""},"PeriodicalIF":6.1000,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Building Simulation","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s12273-024-1138-1","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

In many chiller plants, high coefficient of performance (COP) is only achieved at a few favorable part load ratios (PLRs), while the COP is low at many other non-favorable PLRs. To address this issue, this study proposes a generic load regulation strategy that aims to maintain chiller plants operating at high COP, particularly under non-favorable PLRs. This is achieved by incorporating thermal energy storage (TES) units and timely optimizing the charging and discharging power of the integrated TES units. The optimal charging and discharging power is determined by solving a dynamic optimization problem, taking into account the performance constraints of the TES units and the chiller plants. To provide an overview of the energy-saving potential of the proposed strategy, a comprehensive analysis was conducted, considering factors such as building load profiles, COP/PLR curves of chillers, and attributes of the TES units. The analysis revealed that the proposed load regulation strategy has the potential to achieve energy savings ranging from 5.7% to 10.8% for chiller plants with poor COPs under unfavorable PLRs, particularly in buildings with significant load variations.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
提高冷水机组能效的通用负荷调节策略
在许多冷水机组中,只有在少数几个有利的部分负荷率(PLR)下才能实现较高的性能系数 (COP),而在许多其他非有利的部分负荷率下,COP 很低。为解决这一问题,本研究提出了一种通用负载调节策略,旨在保持冷水机组以较高的 COP 运行,尤其是在非有利部分负载率的情况下。该策略通过集成热能储存(TES)装置并及时优化集成 TES 装置的充放电功率来实现。最佳充放电功率是通过解决动态优化问题确定的,同时考虑到 TES 装置和冷水机组的性能限制。为了全面了解所提策略的节能潜力,我们进行了一项综合分析,考虑了建筑负荷曲线、冷水机组的 COP/PLR 曲线以及 TES 装置的属性等因素。分析表明,对于在不利的 PLR 条件下 COP 较差的冷水机组,尤其是在负载变化较大的楼宇中,拟议的负载调节策略具有实现 5.7% 至 10.8% 节能的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Building Simulation
Building Simulation THERMODYNAMICS-CONSTRUCTION & BUILDING TECHNOLOGY
CiteScore
10.20
自引率
16.40%
发文量
0
审稿时长
>12 weeks
期刊介绍: Building Simulation: An International Journal publishes original, high quality, peer-reviewed research papers and review articles dealing with modeling and simulation of buildings including their systems. The goal is to promote the field of building science and technology to such a level that modeling will eventually be used in every aspect of building construction as a routine instead of an exception. Of particular interest are papers that reflect recent developments and applications of modeling tools and their impact on advances of building science and technology.
期刊最新文献
Evolving multi-objective optimization framework for early-stage building design: Improving energy efficiency, daylighting, view quality, and thermal comfort An integrated framework utilizing machine learning to accelerate the optimization of energy-efficient urban block forms Exploring the impact of evaluation methods on Global South building design—A case study in Brazil Mitigation of long-term heat extraction attenuation of U-type medium-deep borehole heat exchanger by climate change Developing an integrated prediction model for daylighting, thermal comfort, and energy consumption in residential buildings based on the stacking ensemble learning algorithm
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1