A novel energy conservation method—optimal chiller loading

Chang, Yung-Chung

doi:10.1016/j.epsr.2003.10.012

Cited by 126 publications

(49 citation statements)

References 3 publications

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“…Recent studies advocate to the use of the Lagrangian method to optimize multiple-chiller operation [7,8]. However, embedded with the mathematical models in this control strategy is a requirement for the correct system-configuration.…”

Section: Introductionmentioning

confidence: 99%

Developing a simplified model for evaluating chiller-system configurations

Lee

2007

Applied Energy

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Section: Introductionmentioning

confidence: 99%

Developing a simplified model for evaluating chiller-system configurations

Lee

2007

Applied Energy

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“…Fig. 1 depicts the structure of a decoupled system [11], which has many advantages and is applied in more than 95% of large air-conditioning systems in Taiwan. A decoupled system offers constant flow on the primary side (the chiller side), which prevents excessively low temperatures from damaging the evaporator and also prevents the chillers shutting down frequently.…”

Section: Introductionmentioning

confidence: 99%

Sequencing of chillers by estimating chiller power consumption using artificial neural networks

Chang

2007

Building and Environment

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“…[15][16][17]. The overall functioning efficiency of an air-conditioning system is closely related to the efficiency of the chiller unit because it accounts for over 60% of the HVAC (Heating, Ventilating, and Air-Conditioning) system [18,19].…”

Section: Introductionmentioning

confidence: 99%

Analysis of energy and carbon dioxide emission caused by power consumption

Sung

Tsai

Wang

et al. 2010

Int. J. Energy Res.

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SUMMARYThe main objective of this on-site study is to use a full-scale Heating, Ventilating, and Air-Conditioning (HVAC) system installed in an office building in Taiwan for comparing the power consumption, energy-saving, and carbon dioxide (CO 2 ) reduction of two different strategies for controlling the HVAC. These strategies are the Constant Volume (CV) system [Constant Air Volume1Constant-flow], and the Variable Volume (VV) system [Variable Air Volume 1Variable-flow]. The on-site experimental results indicate that average power consumptions are 164 kW for the CV system, and 88 kW for the VV system; the average electric current drops from 469 A for the CV system to 258 A for the VV system. Approximately 46% of the average energy-saving can be achieved if the HVAC system is operated as a VV system. Additionally, the reduced quantity of accumulated CO 2 emission varies from 67 to 3687 kg with 0.637 kg CO 2 kwh À1 emission factor during the office hours of 08:30 (a.m.)-17:00 (p.m.). The results demonstrate that switching the operation of an office building HVAC system from CV to VV will significantly enhance energy-savings and CO 2 reduction. This studywill offer useful information for evaluating an indoor environmental policy with respect to energy-savings and CO 2 emission reduction for office HVACs used in subtropical regions.

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A novel energy conservation method—optimal chiller loading

Cited by 126 publications

References 3 publications

Developing a simplified model for evaluating chiller-system configurations

Developing a simplified model for evaluating chiller-system configurations

Sequencing of chillers by estimating chiller power consumption using artificial neural networks

Analysis of energy and carbon dioxide emission caused by power consumption

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