My watch list
my.bionity.com  
Login  

Energies, Vol. 11, Pages 719: An Application of a Novel Technique for Assessing the Operating Performance of Existing Cooling Systems on a University Campus

Energies, Vol. 11, Pages 719: An Application of a Novel Technique for Assessing the Operating Performance of Existing Cooling Systems on a University Campus

Energies doi: 10.3390/en11040719

Authors: Elnazeer Hamid Abdalla Perumal Nallagownden Nursyarizal Mohd Nor Mohd Romlie Sabo Hassan

Optimal operation is an important aspect of energy efficiency that can be employed to reduce power consumption. In cooling systems, the chillers consume a large amount of electricity, especially if they are not optimally operated, therefore, they cannot produce the required or rated cooling load capacity. The objective of this paper is to improve coefficient of performance (COP) for the operation of chillers and to reduce power consumption. Two contributions in this work are: (1) the prediction of a model by using Adaptive Neuro-Fuzzy Inference System (ANFIS)-based Fuzzy Clustering Subtractive (FCS), and (2) the classification and optimization of the predicted models by using an Accelerated Particle Swarm Optimization (APSO) algorithm. Particularly, in contribution (1), two models are developed to predict/assess power consumption and cooling load capacity. While in contribution (2), the predictive model’s data obtained are used to classify the operating performance of the chiller and to optimize the model in order to reduce power consumption and cooling capacity. Therefore, data classification by APSO is used to enhance the coefficient of performance (COP). The proposed technique reduces the total power consumption by 33.2% and meets the cooling demand requirements. Also, it improves the cooling performance based on COP, thus resulting in a 15.95% increase in efficiency compared to the existing cooling system. The studied ANFIS-based FCS outperforms the ANFIS-based fuzzy C-means clustering in terms of the regression. Then, the algorithm-based classifier APSO has better results compared to the conventional particle swarm optimization (PSO). The data was acquired from the District Cooling System (DCS) at the Universiti Teknologi Petronas (UTP) campus in Malaysia.

Authors:   Hamid Abdalla, Elnazeer Ali; Nallagownden, Perumal ; Mohd Nor, Nursyarizal Bin; Romlie, Mohd Fakhizan; Hassan, Sabo Miya
Journal:   Energies
Volume:   11
edition:   4
Year:   2018
Pages:   719
DOI:   10.3390/en11040719
Publication date:   22-Mar-2018
Facts, background information, dossiers
  • UTP
  • Total
  • Sabo
  • Petronas
  • paper
  • Malaysia
  • energy efficiency
  • electricity
More about Molecular Diversity Preservation International
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE