Analysis of Using the M-Cycle Regenerative-Humidification Process on a Gas Turbine

Jenkins, Peter E.; Cerza, M.; Saaid, Mohammad Al

doi:10.1115/gt2014-25178

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…The overall energy change of the water film can be determined by adding equations ( 16), (19), and (20) [35]:…”

Section: Heat and Mass Transfer Model For Aftercooling Saturatormentioning

confidence: 99%

“…Ilya Reyzin [17] implemented the M-type power cycle using an Idalex humidification air-to-air heat exchanger and validated the benefits of the system based on results from heat and mass exchange tests and data from the HAT system. Jenkins PE [18,19] simulated MGTC and compared it with experimental data from conventional gas turbine cycles. The results showed that compared with the Brayton cycle, the output shaft power and efficiency were improved, even for gas turbines with lower pressure ratios, and humidifying the compressor exhaust could improve the thermal performance and reheating.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on Heat and Mass Transfer Characteristics and Parameter Design of the Maisotsenko Saturator

Shi

Adam

et al. 2023

Preprint

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The Maisotsenko gas turbine cycle (MGTC) introduces the M-cycle in the aftercooling process, thereby adding a larger mass flow rate to the saturator. However, this imposes strict requirements on the lightweight design of the aftercooling saturator, for which detailed manufacturing information is currently scarce. This paper presents a comprehensive MGTC that combines intercooling, aftercooling, and regenerative, and considers the reuse of cooling water and energy recovery. The thermodynamic indicators are obtained by establishing energy and mass conservation models for each component. A heat and mass transfer model is developed for the aftercooling saturator, and the actual dimensions and internal temperature, relative humidity, and humidity ratio changes are calculated using the finite difference method. The response patterns of channel length to changes in parameters such as pressure ratio, dew point efficiency, and extraction ratio are analyzed. The results show that with a pressure ratio of 16, a dew point efficiency of 0.8, and an extraction ratio of 1/3, a channel length of 5.526m is required, with a corresponding channel number and total heat transfer area of 317 and 1752m2, respectively, and a thermal efficiency of 48.63%. The study provides a key thermal design scheme for the aftercooling saturator.

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“…The overall energy change of the water film can be determined by adding equations ( 16), (19), and (20) [35]:…”

Section: Heat and Mass Transfer Model For Aftercooling Saturatormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation on Heat and Mass Transfer Characteristics and Parameter Design of the Maisotsenko Saturator

Shi

Adam

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Power generation plants or NOx reduction are other applications where M-cycle could be used [19][20][21]. An M-cycle-based air saturator simplifies the humidification process of the combustion air in a gas turbine cycle.…”

mentioning

confidence: 99%

Overview of the M-Cycle Technology for Air Conditioning and Cooling Applications

2022

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The indirect evaporative cooler (IEC) has excellent potential to replace or improve conventional vapor compression equipment in HVAC and refrigeration applications. This could be achieved by using the M-cycle (dew-point evaporative cooling technology). This thermodynamic concept makes it possible to derive a large amount of energy from the air stream (as latent heat released during water evaporation into the working air stream) and use it for another air stream (product). Its application has also spread to other sectors, such as water desalination and distillation, power plants, or NOx reduction. This paper provides an overview of the M-cycle mainly in air conditioning (MAC, D-MAC, H-MAC) and refrigeration (MCT, M-condenser). Various integrated solutions are described, showing improved effectiveness in terms of the wet-bulb temperature and the dew point. The design features of consolidated solutions are better In terms of the flow distribution, geometry, or volume. Most of the improvements confirm the great potential of the M-cycle to increase the unit or the system efficiency due to lower energy and water consumption.

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Thermal-Economic Comparative Analysis and Optimization of the Maisotsenko Gas Turbine Cycle under Different Configurations

Shi,

He,

Yao

et al. 2024

J. Therm. Sci.

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Analysis of Using the M-Cycle Regenerative-Humidification Process on a Gas Turbine

Cited by 8 publications

References 4 publications

Investigation on Heat and Mass Transfer Characteristics and Parameter Design of the Maisotsenko Saturator

Investigation on Heat and Mass Transfer Characteristics and Parameter Design of the Maisotsenko Saturator

Overview of the M-Cycle Technology for Air Conditioning and Cooling Applications

Thermal-Economic Comparative Analysis and Optimization of the Maisotsenko Gas Turbine Cycle under Different Configurations

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