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Sekarapandian N

Bio: Sekarapandian N is an academic researcher from VIT University. The author has contributed to research in topics: Desiccant & Pressure drop. The author has an hindex of 1, co-authored 6 publications receiving 2 citations.

Papers
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Book ChapterDOI
01 Jan 2021
TL;DR: In this paper, the authors present the results of numerical simulation of coupled heat and mass transfer during the adsorption and desorption phases of fixed/stationary/packed desiccant beds under wide operating conditions.
Abstract: This paper presents the results of numerical simulation of coupled heat and mass transfer during the adsorption and desorption phases of fixed/stationary/packed desiccant beds under wide operating conditions. The bed containing fixed and varying particle diameter distribution along the vertical axial direction has been investigated. A CFD code has been developed using the finite volume method which models the heat conduction and mass diffusion in the bed. The numerical results of the present model and the experimental data from literature show good agreement for exit air temperature and moisture content. The improvement in pressure drop has been investigated for varying particle diameters and flow velocity.

Cited by
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Journal ArticleDOI
TL;DR: In this paper , a theoretical methodology has been discussed to help the industry and chemists to understand the porous structural properties of adsorbent surfaces needed to tune the material performance for a particular humidity value before material synthesis.
Abstract: Cooling has a significant share in energy consumption, especially in hot tropical regions. The conventional mechanical vapor compression (MVC) cycle, widely used for air-conditioning needs, has high energy consumption as air is cooled down to a dew point to remove the moisture. Decoupling the latent cooling load through dehumidification from the sensible cooling load can significantly improve the energy requirement for air-conditioning applications. Solid desiccants have shown safe and reliable operation against liquid desiccants, and several configurations of solid desiccants dehumidifiers are studied to improve their performance. However, the characteristics of solid desiccants are critical for the performance and overall operation of the dehumidifier. The properties of every desiccant depend upon its porous adsorbing surface characteristics. Hence, it has an optimum performance for certain humid conditions. Therefore, for a better dehumidification performance in a specific tropical region, the solid desiccant must have the best performance, according to the humidity range of that region. In this article, a theoretical methodology has been discussed to help the industry and chemists to understand the porous structural properties of adsorbent surfaces needed to tune the material performance for a particular humidity value before material synthesis.

1 citations

Journal ArticleDOI
TL;DR: In this paper , a rotatory desiccant wheel with silica gel is used for dehumidification and the performance of the desicant wheel is optimized in terms of airflow rates along with ambient temperatures.
Abstract: Abstract Dry air plays an essential role in achieving human comfort and in other applications like product drying, food storage, etc. one of the best methods to produce dry air is by employing a desiccant dehumidifier. A rotatory desiccant wheel with silica gel is used in the present work. Current work involves the optimization of the desiccant wheel performance in terms of airflow rates along with ambient temperatures. Optimization of desiccant wheel is suggested by maximum value of various performance parameters involved in this study. Required conditions have been set up by the pre-treatment section installed before the desiccant wheel. At the regeneration section two electric heater (250 watt each) is fitted through which the desiccant material is regenerated. This work is conducted for humid and hot conditions and found that the optimum functioning of desiccant wheel dehumidifier is found at 31°C ambient temperature and at the inlet 3.5 m/s velocity of air.
Proceedings ArticleDOI
01 Oct 2022
TL;DR: In this paper , a rotatory desiccant wheel with silica gel is used in the dehumidification process of a de-humidifier to produce dry air.
Abstract: Dry air plays an essential role in achieving human comfort and in other applications like product drying, food storage, etc. one of the best methods to produce dry air is by employing a desiccant dehumidifier. A rotatory desiccant wheel with silica gel is used in the present work. Current work involves the optimization of the desiccant wheel performance in terms of airflow rates along with ambient temperatures. Optimization of desiccant wheel is suggested by maximum value of various performance parameters involved in this study. Required conditions have been set up by the pre-treatment section installed before the desiccant wheel. At the regeneration section two electric heater (250 watt each) is fitted through which the desiccant material is regenerated. This work is conducted for humid and hot conditions and found that the optimum functioning of desiccant wheel dehumidifier is found at 31°C ambient temperature and at the inlet 3.5 m/s velocity of air.