Journal ArticleDOI
A simplified methodology to optimize the cooling tower approach temperature control schedule in a cooling system
TLDR
In this paper, the effectiveness cooling tower model by Braun is adopted to model the cooling tower performance with field measurements, and a typical electric chiller model based on the condenser entering temperature is applied from the EnergyPlus Engineering Reference.About:
This article is published in Energy Conversion and Management.The article was published on 2019-11-01. It has received 22 citations till now. The article focuses on the topics: Chiller & Water cooling.read more
Citations
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Journal ArticleDOI
Model-free control method based on reinforcement learning for building cooling water systems: Validation by measured data-based simulation
TL;DR: The results suggest that for a central chilled water system with a designed peak cooling load close to 2000 kW, three months of learning during the cooling season is sufficient to develop a good model-free controller with an acceptable performance.
Journal ArticleDOI
Model-based optimization of free cooling switchover temperature and cooling tower approach temperature for data center cooling system with water-side economizer
Jiajie Li,Zhengwei Li +1 more
TL;DR: In this paper, the authors presented a model-based methodology to optimize T s w and T a p p in different cooling modes for partial-free cooling in data centers with WSE.
Journal ArticleDOI
A review of optimization approaches for controlling water-cooled central cooling systems
TL;DR: An up-to-date overview of the research and development of optimization approaches for controlling water-cooled central cooling systems is provided, helping readers to understand the new significant trends and achievements in this area.
Journal ArticleDOI
A novel approach for energy and mass transfer characteristics in wet cooling towers associated with vapor-compression air conditioning system by using MgO and TiO2 based H2O nanofluids
TL;DR: In this article, the experimental work on the performance-enhancing of a central air-conditioning utilizing cooling tower is presented under an enormous range of design and operating conditions, and it is found that the using of spiral sprayer with a spray angle of 90° had an effect of 106% and a 76.5% increase on the cooling tower effectiveness.
Journal ArticleDOI
Real-time optimization of multi-cell industrial evaporative cooling towers using machine learning and particle swarm optimization
TL;DR: This proposed AI-based solution presents an opportunity to improve the overall heat rate of a load-following coal-fired power plant without the need to perform extensive first-principles modeling or add additional hardware to the cooling tower, resulting in more resources conserved and less overall emissions per unit of electricity generated.
References
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Journal ArticleDOI
A critical investigation into the heat and mass transfer analysis of counterflow wet-cooling towers
J. C. Kloppers,Detlev G. Kröger +1 more
TL;DR: In this article, a detailed derivation of the heat and mass transfer equations of evaporative cooling in wet cooling towers is given, with the aid of enthalpy diagrams and psychrometric charts.
Journal ArticleDOI
Design of Cooling Towers by the Effectiveness-NTU Method
H. Jaber,Ralph L. Webb +1 more
TL;DR: The methode LMED (difference d'enthalpie logarithmique moyenne) as mentioned in this paper is a methode NUT-efficacite for the conception de tours de refroidissement.
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Cooling tower performance evaluation: Merkel, Poppe, and e-NTU methods of analysis
J. C. Kloppers,Detlev G. Kröger +1 more
TL;DR: In this article, the effect of ambient humidity and temperature on the performance of cooling towers employing the Merkel, e-NTU, and Poppe methods of analysis is evaluated. And the importance of using a particular method of analysis when evaluating the performance characteristics of a certain fill material and subsequently employing the same analytical approach to predict cooling tower performance is stressed.
Journal ArticleDOI
HVAC system optimization--condenser water loop
TL;DR: In this article, a model-based optimization strategy for the condenser water loop of centralized heating, ventilation and air conditioning (HVAC) systems is presented. And a modified genetic algorithm for this particular problem is proposed to obtain the optimal set points of the process.
Journal ArticleDOI
Centrifugal chillers: Thermodynamic modelling and a diagnostic case study
TL;DR: In this paper, a case study for a commercial, installed centrifugal chiller was presented, where performance data were measured both prior to, and subsequent to, chiller maintenance that improved chiller efficiency.