冷冻机
冷水机组
冷冻机锅炉系统
冷负荷
高效能源利用
汽车工程
工程类
能源消耗
发电站
工艺工程
环境科学
废物管理
空调
机械工程
电气工程
物理
气体压缩机
热力学
制冷剂
作者
Sundar Raj Thangavelu,Aung Myat,Ashwin M. Khambadkone
出处
期刊:Energy
[Elsevier]
日期:2017-01-30
卷期号:123: 64-76
被引量:117
标识
DOI:10.1016/j.energy.2017.01.116
摘要
This study investigates the potential energy savings in commercial buildings through optimized operation of a multi-chiller plant. The cooling load contributes 45–60% of total power consumption in commercial and office buildings, especially at tropics. The chiller plant operation is not optimal in most of the existing buildings because the chiller plant is either operated at design condition irrespective of the cooling load or optimized locally due to lack of overall chiller plant behavior. In this study, an overall energy model of chiller plant is developed to capture the thermal behavior of all systems and their interactions including the power consumption. An energy optimization methodology is proposed to derive optimized operation decisions for chiller plant at regular intervals based on building thermal load and weather condition. The benefits of proposed energy optimization methodology are examined using case study problems covering different chiller plant configurations. The case studies result confirmed the energy savings achieved through optimized operations is up to 40% for moderate size chiller plant and around 20% for small chiller plant which consequently reduces the energy cost and greenhouse gas emissions.
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