Analysis and Performance of Radial Flow Rotary Desiccant Dehumidifiers

Elsayed, Moustafa M.; Chamkha, Ali J.

doi:10.1115/1.2871825

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…where qv = m L (12) In terms of desiccant parameters, cycle efficiency can be expressed as given in [11],…”

Section: System Parametric Analysismentioning

confidence: 99%

“…Sorption air conditioning systems attain considerable attention as they can be driven either by waste heat sources or by renewable energy sources. Several desiccant dehumidifier configurations including solid packed bed, rotating horizontal bed, multiple vertical beds, rotating honeycomb, fluidized bed, and inclined bed have been investigated for dehumidification purpose [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The investigation of the combined heat and mass transfer characteristics accompanied with such a sorption process is, therefore, very important in designing and optimizing the operation of sorptive based dehumidifiers. Much research on the solid desiccant dehumidifiers has been accomplished, and many successful, effective mathematical models to predict the heat and mass transfer process in such dehumidifiers have emerged [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling and Simulation of Desiccant Operated Humidity Pump (DOHP)

Hamed¹,

Alosaimy²

2011

IJTEE

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In the present work, novel configuration of rotating desiccant wheel using calcium chloride as the working desiccant is presented. The proposed system is called desiccant operated humidity pump (DOHP). Mathematical model, which can be applied for analysis of the proposed system, is developed. The proposed system can be powered by low grade heat sources such as solar energy. Absorption-regeneration cycle for the DOHP is described and analyzed. An expression for the efficiency of the simple cycle is introduced. Theoretical analysis shows that strong and weak solution concentration limits play a decisive role in the value of cycle efficiency. System efficiency with consideration of heat and work added to the system is well defined. Dimensionless parameters defining the system design parameters are introduced. The limits of regeneration temperature and mass of strong solution per kg of produced vapor are found highly dependent on the operating concentration of desiccant.

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“…where qv = m L (12) In terms of desiccant parameters, cycle efficiency can be expressed as given in [11],…”

Section: System Parametric Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and Simulation of Desiccant Operated Humidity Pump (DOHP)

Hamed¹,

Alosaimy²

2011

IJTEE

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“…An affectability study is done to examine the impact of altering slightly of these boundaries on exhibition of wheel. The exhibition of outspread stream desiccant wheel is contrasted and that of ordinary hub stream desiccant wheel having similar estimations of activity boundaries [4]. Abasi et.al (2016) [5] joins rotating desiccant wheel division into an air recycled convective dryer and analysis it through drying corn portions.…”

Section: Introductionmentioning

confidence: 98%

Dehumidification Analysis of Rotary Solid Desiccant Wheel & Packed Bed System

Hussain¹,

Alam²,

Ahamad³

et al. 2021

JUSST

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Moisture transport is one of the major challenges in desiccant dehumidification. The transfer of moisture basically involves transfer of heat between moist air and desiccant particles as well as the mass transferal of moisture between moist air and desiccant particles. Type of desiccant dehumidification analysis is heating with dehumidification. Warmth move between sodden air and desiccants likewise gains consideration since temperature appropriation significantly influences the mass exchange execution through desiccant isotherms. The warmth and mass exchange between a clammy air stream and desiccant particles is dissected. Surface dissemination is noticed to overwhelm mass exchange within the silica gel particles. Here in this paper, we have compared the three diffusion coefficients Ordinary, Knudson and surface diffusion both for packed bed system and rotary desiccant system. Also, two models of move coefficients are introduced here and analyzed. Pseudo gas side controlled model usages an observational gas side mass exchange coefficient to represent dissemination opposition on strong side. Solid side resistance model settles the dissemination condition and is the finest exact as far as move coefficients. Notwithstanding, it makes examination considerably more clear.

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“…Many investigators studied different types of dehumidifier configurations [8,[12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%