Experimental investigation of temperature swing adsorption system for air dehumidification

Kannan, Vinayagam; Vijayan, S.

doi:10.1007/s00231-020-02841-w

Cited by 9 publications

(2 citation statements)

References 25 publications

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“…In general, industrial practice, the TSA is operated in a steady cyclic operation which has fixed constant times of the adsorption and desorption phases. However, Kannan et al [14] reported that the desorption temperature and space velocity had the most immense effect on the quality of the dehumidified air comparing with half-cycle time, bed length and adsorption temperature. It may also be noted that they did not have any energy efficiency consideration.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study on a Novel Temperature Breakpoint Cyclic Operation to Enhance Desiccant Packed Bed Performance

Murathathunyaluk¹,

Kitchaiya²

2021

IJHT

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In a conventional desiccant packed bed dehumidification, the adsorption and desorption operations switched at a constant cycle. However, this Conventional Steady Cyclic (CSC) operation was not performed well under disturbances. Therefore, a Temperature Breakpoint Cyclic (TBC) operation is proposed. A numerical model of the desiccant packed bed dehumidification system has been constructed and validated. The model was then used to assess the desiccant packed bed dehumidification performances in term of moisture removal capacity (MRC) and dehumidification coefficient of performance (DCOP) under various cycle times and temperature factors. The calculation results showed that under CSC, larger amounts of energy were required in the desorption operation, while the TBC exhibited higher performances in term of both MRC and DCOP. Notably, at a high regeneration temperature, the MRC of the TBC was 10% higher than the CSC’s; moreover, the DCOP of the TBC was twice higher than the CSC’s. In other words, at high recovery temperature, both operations exhibited comparable capacities while the energy cost was halved under TBC operation.

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Section: Introductionmentioning

confidence: 99%

Theoretical Study on a Novel Temperature Breakpoint Cyclic Operation to Enhance Desiccant Packed Bed Performance

Murathathunyaluk¹,

Kitchaiya²

2021

IJHT

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“…This complication might be the reason why just a few researchers have tried simulation of pressure based adsorption systems for a small group of applications like separation of hydrogen, carbon dioxide, nitrogen, oxygen, propane, and methane from the feed stream. [23][24][25][26][27][28][29] Nevertheless, experimental studies on these systems for water vapour removal from feed air stream are scarce. The existing correlations based on traces of air other than water vapour are not suitable for designing this system to produce product dry air at a low dew point.…”

Section: Introductionmentioning

confidence: 99%

Parametric study on pressure-based packed bed adsorption system for air dehumidification

Sureshkannan¹,

Seenivasan²,

Anbuudayasankar

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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Compressed air free from traces of water vapour is vital in many applications in an industrial sector. This study focuses on parametric optimization of a pressure-based packed bed adsorption system for air dehumidification through the Taguchi method and Genetic Algorithm. The effect of operational parameters, namely absolute feed air pressure, feed air linear velocity, and purge air flow rate percent on adsorption uptake rate of molecular sieve 13X-water pair, are studied based on L25 orthogonal array. From the analysis of variance, it has been found that absolute feed air pressure and purge air flow rate percent were the parameters making significant improvement in the adsorption uptake rate. A correlation representing the process was developed using regression analysis. The optimum adsorption conditions were obtained through the Taguchi method and genetic algorithm and verified through the confirmation experiments. This system can be recommended for the industrial and domestic applications that require product air with the dew point temperature below 0°C.

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Experimental Investigation on Use of Activated Alumina and Molecular Sieve 13× In Heatless Desiccant Air Dryer

D’souza

Brahmbhatt²

2022

Lecture Notes in Mechanical Engineering

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Experimental investigation of temperature swing adsorption system for air dehumidification

Cited by 9 publications

References 25 publications

Theoretical Study on a Novel Temperature Breakpoint Cyclic Operation to Enhance Desiccant Packed Bed Performance

Theoretical Study on a Novel Temperature Breakpoint Cyclic Operation to Enhance Desiccant Packed Bed Performance

Parametric study on pressure-based packed bed adsorption system for air dehumidification

Experimental Investigation on Use of Activated Alumina and Molecular Sieve 13× In Heatless Desiccant Air Dryer

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