Cooling effectiveness of mist precooler for improving energy performance of air-cooled chiller

Yu, F.W.; Chan, K.T.; Yang, Jia; Sit, R.K.Y.

doi:10.2298/tsci151112071y

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…As a source of cold it is proposed to use absorption refrigeration machine. [13][14][15][16][17] The operational principle of an absorption refrigeration machine is based on certain properties of the refrigerant and absorbent, which provide heat removal, cooling and maintaining the required temperature conditions. At present, the industry widely uses absorption refrigeration machines to produce cold in an area of positive temperatures for various technological needs.…”

Section: Methodsmentioning

confidence: 99%

Study of the work and efficiency improvement of combined-cycle gas turbine plants

et al. 2019

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The purpose of the paper is to study and analyze the possibility of increasing the power output of a combined-cycle gas turbine (CCGT) unit during the period of positive ambient temperatures. The first task is to analyze the operation of a 110 MW combined-cycle power unit at various ambient temperatures and to obtain alterations in the main CCGT characteristics when the ambient temperature changes. The other task is to study the usage of an absorption refrigeration machine in a CCGT cycle to increase its energy efficiency. Calculations of the thermal scheme of a gas turbine were carried out using mathematical modeling, the steam turbine was calculated based on guidelines. The conducted studies allow to conclude that the use of an absorption refrigeration machine in the cycle of a combined-cycle plant can improve the efficiency of the unit, increasing profits from power generation, and reducing penalties for non-compliance with the load schedule.

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Section: Methodsmentioning

confidence: 99%

Study of the work and efficiency improvement of combined-cycle gas turbine plants

et al. 2019

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Improving the efficiency of combined-cycle plant by cooling incoming air using absorption refrigerating machine

Mendeleev

Maryin

Akhmetshin

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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The purpose of the paper is to study and analyze the possibility of increasing the power of combined cycle gas turbine (CCGT) unit during the period of positive ambient temperatures. The other aim is to study usage of an absorption refrigerating machine in a CCGT cycle to increase its energy efficiency. The third aim is to analyze the operation of 110 MW combined-cycle power unit at various ambient temperatures, and to obtain alterations in the main CCGT characteristics when the ambient temperature changes. Calculations of the thermal scheme of a gas turbine were carried out using mathematical modeling, the steam turbine was calculated basing on the guidelines. The possibility of increasing the capacity of a CCP-110 MW was studied and analyzed. The conducted studies allowed us to conclude that the use of absorption refrigerating machine in the cycle of a combined-cycle plant can improve the efficiency of the unit, increase profits from power generation, and reduce penalties for non-compliance with the load schedule.

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Assessment of the effect of humidity of air-cooled in the absorption refrigeration machine on the operation of an energy gas turbine

Mendeleev

Marin

Galitskii³

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Due to the fact that the construction of combined cycle plants has become the main trend in the development of the world heat power industry in the last two decades studies of the operating modes and operation of such equipment are very relevant at the moment. The aim of this work is to study the effect of chilled air in an absorption refrigeration machine on the operation of a stationary gas turbine installation. The operation of a gas turbine installation is affected by the temperature of the surrounding air due to changes in its density and humidity at different temperatures and because of the different useful work of the gas turbine. The standard adopted in the design of gas turbines is 15 °C. An increase in ambient temperature leads to a decrease in the generated power of the gas turbine. The influence of gas turbine power from ambient air can be reduced by means of cooling units for incoming air (absorption refrigeration machine (ARM)), or by modernizing the gas flow part of gas turbines and injecting water or carbon dioxide. This study is devoted to the influence of humidity of air entering the gas turbine compressor from the ARM, where it was previously cooled. It was noted that air humidity affects the efficiency of the ARM and therefore the useful power of gas turbines. The power of a gas turbine can be increased to 7-9 MW when using the ARM.

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Cooling effectiveness of mist precooler for improving energy performance of air-cooled chiller

Cited by 4 publications

References 18 publications

Study of the work and efficiency improvement of combined-cycle gas turbine plants

Study of the work and efficiency improvement of combined-cycle gas turbine plants

Improving the efficiency of combined-cycle plant by cooling incoming air using absorption refrigerating machine

Assessment of the effect of humidity of air-cooled in the absorption refrigeration machine on the operation of an energy gas turbine

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