Heat and mass transfer performance and exergy performance evaluation of seawater cooling tower considering different inlet parameters

Yu, Yang; Qi, Xiaoni; Hou, Xiaochen; Qu, Xiaohang; Guo, Qianjian; Zhu, He‐Gang

doi:10.2298/tsci210523312y

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…The results showed that this cooling tower had higher heat and mass transfer efficiency in dealing with air, resulting in lower water consumption, and avoiding the clogging problem Energies 2023, 16, 7330 2 of 15 of the packing layer. Yu et al [17] experimentally evaluated the heat and mass transfer performance and exergy performance of a cooling tower under different inlet parameters. The results indicated that the inlet temperature has a greater impact on the performance of a cooling tower, while the influence of the inlet humidity is relatively small.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Heat and Mass Transfer Characteristics of an Evaporative Cooler

Zhang,

Guo,

Wang

2023

Energies

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To study the heat and mass transfer characteristics of an evaporative cooler for cooling high-temperature working fluids, an experimental device of the evaporative cooler was built, and a corresponding test system was constructed. Then, the experimental study was carried out based on an orthogonal experimental design, and the law and extent of the influence of water flow in the tube, the spray water flow rate, the inlet water temperature in the tube, and the air flow rate on the heat dissipation, cooling efficiency, and heat and mass transfer coefficients were obtained. The correlation equations of the heat and mass transfer coefficients were obtained by fitting the orthogonal experimental data, and the validity of the correlation equations was confirmed by the verification experiment.

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Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Heat and Mass Transfer Characteristics of an Evaporative Cooler

Zhang,

Guo,

Wang

2023

Energies

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Reduction of CO2 emissions by recycling low-potential heat from the Benfield CO2 removal process at a natural gas hydrogen production plant

Hajduga,

Chmielarz,

Bugdol

2024

Clean Techn Environ Policy

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The EU policies related to CO2 emission strictly define the stages of carbon neutrality achieving. According to these regulations, all production installations that emit carbon dioxide will be charged additional emission fees from 2026 to fully in 2035. Analysis of the increasing emission fees shows that in some industries incurring such additional costs will result in a lack of profitability of the products. Industries directly related to the food sector, such as nitrogen fertiliser production, are strategic in the economies of all countries. Nitrogen fertilisers are produced from ammonia, which is synthesised on a large scale from hydrogen and nitrogen. Hydrogen is produced by natural gas reforming with water vapour resulting in syngas (mixture of H2, CO, CO2, H2O), which CO in the next step reacts with water vapour (water gas shift reaction) producing H2 and CO2. CO2 is separated from hydrogen using the Benfield method. The analysis of the Benfield process (one process of hydrogen production) shows a possible way to reduce CO2 emission by optimising heat balance. It was shown that in the proposed technology the heat recovery reaches 89%, while the level below 30% was reported for other available technologies. The proposed solution is based on recirculation and reuse of heat, which is lost in other technologies. The analysis is for a process balance in a medium-sized hydrogen production installation. The analysis considers also the correlations with other installations thermally linked to hydrogen production. The economic balance showed the great financial benefits of this solution. In the scenario discussed, the CO2 emission factor was reduced by 20%. Graphical Abstract

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Experimental Study on Heat and Mass Transfer Characteristics of an Evaporative Cooler for Supercritical CO<sub>2</sub> Cooling

Zhang,

Guo,

Wang

2023

Preprint

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To study the heat and mass transfer characteristics of an evaporative cooler for cooling high-temperature working fluids such as supercritical carbon dioxide, an experimental device of the evaporative cooler was built, and a corresponding test system was constructed. Then, the experimental study was carried out based on the orthogonal test method, and the law and extent of the influence of water flow in the tube, spray water flow rate, inlet water temperature in the tube, and air flow rate on heat dissipation, cooling efficiency, and heat and mass transfer coefficients have been obtained. The correlation equations of the heat and mass transfer coefficients were obtained by fitting the orthogonal experimental data, and the validity of the correlation equations was confirmed by the verification experiment.

show abstract

Heat and mass transfer performance and exergy performance evaluation of seawater cooling tower considering different inlet parameters

Cited by 4 publications

References 27 publications

An Experimental Study on the Heat and Mass Transfer Characteristics of an Evaporative Cooler

An Experimental Study on the Heat and Mass Transfer Characteristics of an Evaporative Cooler

Reduction of CO2 emissions by recycling low-potential heat from the Benfield CO2 removal process at a natural gas hydrogen production plant

Experimental Study on Heat and Mass Transfer Characteristics of an Evaporative Cooler for Supercritical CO<sub>2</sub> Cooling

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