scholarly journals Evaporative cooling technology efficiency compared to traditional cooling system – case study

2020 ◽  
Author(s):  
Viktors Afonicevs ◽  
Uldis Strauts ◽  
Nikolajs Bogdanovs ◽  
Arturs Lesinskis
Keyword(s):  
Cooling System ◽  
Evaporative Cooling ◽  
Cooling Technology

scholarly journals Feasibility of Reducing Electricity Consumption of Air Conditioning Equipment by Condenser Direct Evaporative Cooling Technology. Example of Case Study in Dubai

Atmosphere ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1205
Author(s):  
Anatolijs Borodinecs ◽  
Kristina Lebedeva ◽  
Aleksejs Prozuments ◽  
Arturs Brahmanis ◽  
Aldis Grekis ◽  
...  
Keyword(s):  
Air Conditioning ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Electricity Consumption ◽  
Air Cooling ◽  
Additional Energy ◽  
Direct Evaporative Cooling ◽  
Evaporative Cooling System ◽  
Cooling Technology

The use of air conditioning technology is accompanied by an increase in electricity consumption, which is linked to an intensification of fossil fuel extraction. This in turn calls for developing cooling solutions of higher energy efficiency. The aim of this study is to examine energy consumption reduction of direct evaporative cooling technology for generating cool air in hot-dry climate regions. At the initial stage, already-installed air cooling equipment with a direct evaporative cooling system was studied for the creation of two regression models of electricity consumption representing the “on” and “off” sequences. Water consumption for system operation was taken into consideration. In the following stage, inlet water temperature dependence for pre-cooling purposes for the direct evaporative cooling system was studied. A mathematical model was developed and the subsequent calculations suggested that there is no need to pre-cool water before it enters the system and therefore consume additional energy. Practical application of this study is evaluated based on the case study in Dubai. The results of this study present significant energy saving potential for system operations of the direct evaporative cooling system of approximately 122 MWh per year. The return on investment for the equipment with direct evaporative cooling in case of an office building in Dubai featuring a hot desert climate is around 4.2 years. The purpose of this study is to examine the potential advantage of air cooling equipment with direct evaporative cooling technology compared to cooling equipment without this technology. The results provide the expediency of conducting further research in this area, in particular with regards to analyzing various materials for the adiabatic precooling pads, as well as the possibility of using a newly developed metal precooling pad.

Study of the Thermodynamic Processes and Performance Evaluation of Self-Circulation Evaporative Cooling System in Hydro-Generator

2014 ◽  
Vol 488-489 ◽  
pp. 979-982
Author(s):  
Hai Hong Dong ◽  
Lin Ruan ◽  
Shu Qin Guo ◽  
Rui Cao ◽  
Jin Xiu Chen
Keyword(s):  
Performance Evaluation ◽  
Power Loss ◽  
Heat Load ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Second Law Of Thermodynamics ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
And Performance ◽  
Thermodynamic Processes

The self-circulation evaporative cooling system (SECS) of stator collector ring is a kind of new cooling technology, utilizing the evaporating of work fluid to cool the stator collector ring of hydro-generator. In this article, the thermodynamic processes of SECS of stator collector ring were analyzed by the second law of thermodynamics. The entropy production and power loss of isolated SECS were analyzed. Based on the distinctive characteristics of SECS, a performance evaluation function was proposed. The influence of heat load on was discussed by simulating. The conclusions provide the theory basis for the application of this new cooling technology.

Research on Varying Duty Operation of Self-Circulation Evaporative Cooling System of Single Stator Collector Ring in Hydro-Generator

2014 ◽  
Vol 488-489 ◽  
pp. 975-978
Author(s):  
Hai Hong Dong ◽  
Lin Ruan ◽  
Rui Cao ◽  
Shu Qin Guo ◽  
Jin Xiu Chen
Keyword(s):  
High Efficiency ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Work Conditions ◽  
Practical Application ◽  
Cooling Performance ◽  
System Pressure ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
Operation Characteristics

With the advantage of high-security, energy-saving and high efficiency, the self-circulation evaporative cooling technology provides an ideal solution for the cooling problem of stator collector ring in hydro-generator. In this paper, the operation characteristics of self-circulation evaporative cooling system of single stator collector ring under different work conditions were analyzed by experiments. The experimental results show that the cooling performance of this new cooling system is satisfactory. The temperature distribution of stator collector ring and system pressure distribution were discussed on the basis of experimental data and those variation tendencies were concluded. The research results in this paper provide the basis for further researches and practical application of this new cooling system.

On Resistance of Coolant in Air-Cooling Condenser of Self-Circulating Close-Loop Evaporative Cooling System of Wind Power Generator

2012 ◽  
Vol 512-515 ◽  
pp. 743-746
Author(s):  
Jing Ming Li ◽  
Fu Chuan Song ◽  
Guo Biao Gu ◽  
Xin Dong Tian
Keyword(s):  
Wind Power ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Air Cooling ◽  
Power Generator ◽  
New Approach ◽  
Wind Power Generator ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
Large Wind

As a clean and renewable energy, the wind power has attracted the attention of all nations in the world. Evaporative cooling technology has successfully been used in the research and development of wind power generator, but some key technique has to be studied in advance to insure the reliability of the very technology. The application of evaporative cooling technology in the cooling of large wind power generator is a new attempt in the discovery of wind power energy. Thorough study is carried out on the key technique of the application of close-loop self-circulation (CLSC) evaporative cooling technology on the running of wind power generator. The flow resistance of the coolant in the air cooling condenser is discussed in this paper, and a new approach is founded for the improvement of the reliability.

Life Cycle Assessment of a compact Desiccant Evaporative Cooling system: The case study of the “Freescoo”

2016 ◽  
Vol 156 ◽  
pp. 83-91 ◽  
Author(s):  
Pietro Finocchiaro ◽  
Marco Beccali ◽  
Maurizio Cellura ◽  
Francesco Guarino ◽  
Sonia Longo
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Evaporative Cooling System

Evaporative Cooling Chillers Economic Configuration Scheme Analysis

2012 ◽  
Vol 516-517 ◽  
pp. 1152-1155
Author(s):  
Yan Bin Bai ◽  
Xiang Huang ◽  
Hai Hong Huo ◽  
Li Wen
Keyword(s):  
Cooling System ◽  
Evaporative Cooling ◽  
Water System ◽  
Running Time ◽  
Cooling Technology ◽  
Scheme Analysis ◽  
Configuration Scheme

Depending on the project which will use the cooling system Combined with evaporative cooling chillers and mechanical chiller in yulin, the evaporative cooling chillers and mechanical chiller of water system were respectively analyzed in three different forms in this article. Starting from the different process of three different forms in Psychrometrics and the different running time, three different form of water system had been preliminary budgeted. It can be known that the economy of configuration scheme of evaporative cooling technology and mechanical refrigeration technology.

Research Progress of Liquid Desiccant Evaporative Cooling Air Conditioning System

2013 ◽  
Vol 732-733 ◽  
pp. 531-536
Author(s):  
Tong Hua Zou ◽  
Min Wang ◽  
Sai Feng Deng ◽  
Yong Li
Keyword(s):  
Air Conditioning ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Research Progress ◽  
Low Grade ◽  
Liquid Desiccant ◽  
Air Conditioning System ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
Cooling Air

Evaporative cooling technology is a refrigeration technology by water evaporating endothermic, with zero-pollution, environmental-friendly, energy saving, and other advantages, which makes it widely used. Nevertheless, due to its working characteristic, the application of evaporative cooling technology is limited, particularly in some areas with high humidity. Using the liquid desiccant dehumidification and evaporative cooling technology leads to a solution, named liquid desiccant evaporative cooling air conditioning system extends the application of evaporative cooling technology. This article on liquid desiccant evaporative cooling system provides a brief overview about research status, full usage of the low grade thermal energy, the practical application and new development of the system.

Research on the Feasibility of a New Cooling System of Stator Collecting Ring in Hydro-Generator

2012 ◽  
Vol 516-517 ◽  
pp. 1614-1617 ◽  
Author(s):  
Hai Hong Dong ◽  
Lin Ruan
Keyword(s):  
High Efficiency ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Work Conditions ◽  
Work Condition ◽  
Experiment Platform ◽  
Evaporative Cooling System ◽  
Cooling Technology ◽  
Quantity Of Heat ◽  
Operation Characteristics

As a new generator cooling technology, the evaporative cooling technology has the advantages of high-security, energy-saving and high efficiency. To solve the more serious problem of the large quantity of heat generated by stator collecting ring in huge hydro-generator, a new cooling system, the self-circulation inner evaporative cooling system of stator collecting ring, was proposed in this paper. To analyze and discuss the feasibility and operation characteristics of this new cooling system, an experiment platform of self-circulation evaporative cooling system of stator collecting ring was established with extremely asymmetric parallel flow branches. The experimental results show that under different heat loss work conditions, the experimental cooling system can operate normally. Under the rated work condition, the system can meet the cooling demands of actual generator and the wall temperature distribution of stator collecting rings is comparatively even. The feasibility of this new cooling system is confirmed. The conclusions in this paper provide the basis for the further research of this new cooling system.

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