0
Research Papers: Alternative Energy Sources

Solar-Assisted Liquid Desiccant Dehumidification Using Hollow-Fiber and Parallel-Plate Membrane Dehumidifiers: Comparative Analysis

[+] Author and Article Information
Haitham M. Bahaidaraha

Department of Mechanical Engineering,
College of Engineering,
King Fahd University of Petroleum and Minerals (KFUPM),
P. O. Box 279,
Dhahran 31261, Saudi Arabia
e-mail: haithamb@kfupm.edu.sa

Mohand H. Mohamed

Department of Mechanical Engineering,
College of Engineering,
King Fahd University of Petroleum and Minerals (KFUPM),
P. O. Box 279,
Dhahran 31261, Saudi Arabia
e-mail: g201406880@kfupm.edu.sa

Esmail M. A. Mokheimer

Mem. ASME
Department of Mechanical Engineering,
College of Engineering,
King Fahd University of Petroleum and Minerals (KFUPM),
P. O. Box 279,
Dhahran 31261, Saudi Arabia;
K.A. CARE,
Energy Research and Innovation Center,
King Fahd University of Petroleum and Minerals (KFUPM),
P. O. Box 279,
Dhahran 31261, Saudi Arabia;
Center of Research Excellence in Renewable Energy (CoRe-RE),
King Fahd University of Petroleum and Minerals (KFUPM),
P. O. Box 279,
Dhahran 31261, Saudi Arabia
e-mail: esmailm@kfupm.edu.sa

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the Journal of Energy Resources Technology. Manuscript received April 6, 2019; final manuscript received June 3, 2019; published online June 28, 2019. Assoc. Editor: Hameed Metghalchi.

J. Energy Resour. Technol 141(12), 121201 (Jun 28, 2019) (12 pages) Paper No: JERT-19-1206; doi: 10.1115/1.4044020 History: Received April 06, 2019; Accepted June 03, 2019

In hot and humid climates, air conditioning is an energy-intensive process due to the latent heat load. A unitary air conditioner system is proposed, here, to reduce the latent heat of the humid air using a liquid desiccant followed by an evaporative cooling system. The heat liberated by the desiccant is removed by a solution to the solution heat exchanger. To restore the concentration of the liquid desiccant, the desiccant solution is regenerated by any low-temperature heat source such as solar energy. In order to make the system compact, the membrane heat exchanger is used for the dehumidifier and regenerator. This paper presents the numerical investigation of heat and mass transfer characteristics of a selected membrane dehumidifier under different climatic parameters. Membrane-based parallel-plate and hollow-fiber exchangers are used for this application. A parallel-plate heat-and-mass exchanger (contactor) is composed of a series of plate-type membrane sheets to form channels. On the other hand, hollow-fiber membranes are packed in a shell to form a shell-and-tube heat-and-mass exchanger. The two streams of both contactors are in a counter parallel flow, separated by micro-porous semi-permeable hydrophobic membranes. In this research, the equations governing the transport of heat and mass between the two streams along with the membrane effect in both contactors are solved numerically. The results are compared at different number-of-transfer units (NTU) on the airside and thermal capacity ratios. It is found that the hollow fiber is more efficient than the parallel plate.

FIGURES IN THIS ARTICLE
<>
Copyright © 2019 by ASME
Your Session has timed out. Please sign back in to continue.

References

Zhang, L.-Z., 2012, “Progress on Heat and Moisture Recovery With Membranes: From Fundamentals to Engineering Applications,” Energy Convers. Manage., 63, pp. 173–195. [CrossRef]
Grossman, G., and Johannsen, A., 1981, “Solar Cooling and Air Conditioning,” Prog. Energy Combust. Sci., 7(3), pp. 185–228. [CrossRef]
Babakhani, D., and Soleymani, M., 2009, “An Analytical Solution for Air Dehumidification by Liquid Desiccant in a Packed Column,” Int. Commun. Heat Mass Transfer, 36(9), pp. 969–977. [CrossRef]
Liu, X. H., Jiang, Y., and Qu, K. Y., 2007, “Heat and Mass Transfer Model of Cross Flow Liquid Desiccant Air Dehumidifier/Regenerator,” Energy Convers. Manage., 48(2), pp. 546–554. [CrossRef]
Kumar, R., Dhar, P. L., and Jain, S., 2011, “Development of New Wire Mesh Packings for Improving the Performance of Zero Carryover Spray Tower,” Energy, 36(2), pp. 1362–1374. [CrossRef]
Goula, A. M., and Adamopoulos, K. G., 2005, “Spray Drying of Tomato Pulp in Dehumidified Air: I. The Effect on Product Recovery,” J. Food Eng., 66(1), pp. 25–34. [CrossRef]
Kim, M.-H., Park, J.-Y., and Jeong, J.-W., 2015, “Simplified Model for Packed-Bed Tower Regenerator in a Liquid Desiccant System,” Appl. Therm. Eng., 89, pp. 717–726. [CrossRef]
Ali, A., Vafai, K., and Khaled, A.-R.A., 2004, “Analysis of Heat and Mass Transfer Between air and Falling Film in a Cross Flow Configuration,” Int. J. Heat Mass Transfer, 47(4), pp. 743–755. [CrossRef]
Kim, K., Berman, N., Chau, D. S., and Wood, B., 1995, “Absorption of Water Vapour Into Falling Films of Aqueous Lithium Bromide,” Int. J. Refrig., 18(7), pp. 486–494. [CrossRef]
Mahmud, K., Mahmood, G. I., Simonson, C. J., and Besant, R. W., 2010, “Performance Testing of a Counter-Cross-Flow run-Around Membrane Energy Exchanger (RAMEE) System for HVAC Applications,” Energy Build., 42(7), pp. 1139–1147. [CrossRef]
Larson, M., Simonson, C., Besant, R., and Gibson, P., 2007, “The Elastic and Moisture Transfer Properties of Polyethylene and Polypropylene Membranes for Use in Liquid-to-Air Energy Exchangers,” J. Membr. Sci., 302(1–2), pp. 136–149. [CrossRef]
Bergero, S., and Chiari, A., 2001, “Experimental and Theoretical Analysis of Air Humidification/Dehumidification Processes Using Hydrophobic Capillary Contactors,” Appl. Therm. Eng., 21(11), pp. 1119–1135. [CrossRef]
Kneifel, K., Nowak, S., Albrecht, W., Hilke, R., Just, R., and Peinemann, K., 2006, “Hollow-Fiber Membrane Contactor for Air Humidity Control: Modules and Membranes,” J. Membr. Sci., 276(1–2), pp. 241–251. [CrossRef]
Johnson, D. W., Yavuzturk, C., and Pruis, J., 2003, “Analysis of Heat and Mass Transfer Phenomena in Hollow-Fiber Membranes Used for Evaporative Cooling,” J. Membr. Sci., 227(1–2), pp. 159–171. [CrossRef]
Vali, A., Ge, G., Besant, R. W., and Simonson, C. J., 2015, “Numerical Modeling of Fluid Flow and Coupled Heat and Mass Transfer in a Counter-Cross-Flow Parallel-Plate Liquid-to-Air Membrane Energy Exchanger,” Int. J. Heat Mass Transfer, 89, pp. 1258–1276. [CrossRef]
Huang, S.-M., Zhang, L.-Z., Tang, K., and Pei, L.-X., 2012, “Fluid Flow and Heat Mass Transfer in Membrane Parallel-Plates Channels Used for Liquid Desiccant air Dehumidification,” Int. J. Heat Mass Transfer, 55(9–10), pp. 2571–2580. [CrossRef]
Huang, S.-M., Hong, Y., and Qin, F. G. F., 2016, “Fluid Flow and Heat Transfer in Hexagonal Parallel-Plate Membrane Channels (HPMC): Effects of the Channel Heights and Fluid Parameters,” Appl. Therm. Eng., 93, pp. 8–14. [CrossRef]
Das, R. S., and Jain, S., 2015, “Performance Characteristics of Cross-Flow Membrane Contactors for Liquid Desiccant Systems,” Appl. Energy, 141, pp. 1–11. [CrossRef]
Huang, S.-M., Yang, M., and Yang, X., 2014, “Performance Analysis of a Quasi-Counter Flow Parallel-Plate Membrane Contactor Used for Liquid Desiccant Air Dehumidification,” Appl. Therm. Eng., 63(1), pp. 323–332. [CrossRef]
Huang, S. M., 2015, “Heat and Mass Transfer in a Quasi-Counter Flow Parallel-Plate Membrane-Based Absorption Heat Pump (QPMAHP),” J. Membr. Sci., 496, pp. 39–47. [CrossRef]
Zhang, L.-Z., 2010, “Heat and Mass Transfer in a Quasi-Counter Flow Membrane-Based Total Heat Exchanger,” Int. J. Heat Mass Transfer, 53(23–24), pp. 5478–5486. [CrossRef]
Yang, M., Huang, S.-M., and Yang, X., 2014, “Experimental Investigations of a Quasi-Counter Flow Parallel-Plate Membrane Contactor Used for air Humidification,” Energy and Build., 80, pp. 640–644. [CrossRef]
Huang, S.-M., Yang, M., Chen, B., Jiang, R., Qin, F. G. F., and Yang, X., 2015, “Laminar Flow and Heat Transfer in a Quasi-Counter Flow Parallel-Plate Membrane Channel (QCPMC),” Int. J. Heat Mass Transfer, 86, pp. 890–897. [CrossRef]
Vali, A., Simonson, C. J., Besant, R. W., and Mahmood, G., 2009, “Numerical Model and Effectiveness Correlations for a Run-Around Heat Recovery System With Combined Counter and Cross Flow Exchangers,” Int. J. Heat Mass Transfer, 52(25–26), pp. 5827–5840. [CrossRef]
Zhang, L.-Z., Huang, S.-M., Chi, J.-H., and Pei, L.-X., 2012, “Conjugate Heat and Mass Transfer in a Hollow-Fiber Membrane Module for Liquid Desiccant Air Dehumidification: A Free Surface Model Approach,” Int. J. Heat Mass Transfer, 55(13–14), pp. 3789–3799. [CrossRef]
Ouyang, Y.-W., and Zhang, L.-Z., 2016, “Conjugate Heat and Mass Transfer in a Skewed Flow Hollow-Fiber Membrane Bank Used for Liquid Desiccant Air Dehumidification,” Int. J. Heat Mass Transfer, 93, pp. 23–40. [CrossRef]
Huang, S.-M., and Yang, M., 2014, “Heat and Mass Transfer Enhancement in a Cross-Flow Elliptical Hollow-Fiber Membrane Contactor Used for Liquid Desiccant Air Dehumidification,” J. Membr. Sci., 449, pp. 184–192. [CrossRef]
Zhang, L.-Z., and Zhang, N., 2014, “A Heat Pump Driven and Hollow-Fiber Membrane-Based Liquid Desiccant air Dehumidification System: Modeling and Experimental Validation,” Energy, 65, pp. 441–451. [CrossRef]
Porcheron, F., and Drozdz, S., 2009, “Hollow-Fiber Membrane Contactor Transient Experiments for the Characterization of gas/Liquid Thermodynamics and Mass Transfer Properties,” Chem. Eng. Sci., 64(2), pp. 265–275. [CrossRef]
Park, H., Deshwal, B., Kim, I., and Lee, H., 2008, “Absorption of SO2 From Flue Gas Using PVDF Hollow-Fiber Membranes in a Gas–Liquid Contactor,” J. Membr. Sci., 319(1–2), pp. 29–37. [CrossRef]
Luis, P., Garea, A., and Irabien, A., 2010, “Modelling of a Hollow Fibre Ceramic Contactor for SO2 Absorption,” Sep. Purif. Technol., 72(2), pp. 174–179. [CrossRef]
Huang, S.-M., Zhang, L.-Z., and Yang, M., 2013, “Conjugate Heat and Mass Transfer in Membrane Parallel-Plates Ducts for Liquid Desiccant Air Dehumidification: Effects of the Developing Entrances,” J. Membr. Sci., 437, pp. 82–89. [CrossRef]
Hemingson, H. B., Simonson, C. J., and Besant, R. W., 2011, “Steady-State Performance of a Run-Around Membrane Energy Exchanger (RAMEE) for a Range of Outdoor Air Conditions,” Int. J. Heat Mass Transfer, 54(9–10), pp. 1814–1824. [CrossRef]
Ghadiri Moghaddam, D., Oghabi, A., Ge, G., Besant, R. W., and Simonson, C. J., 2013, “Numerical Model of a Small-Scale Liquid-to-Air Membrane Energy Exchanger: Parametric Study of Membrane Resistance and air Side Convective Heat Transfer Coefficient,” Appl. Therm. Eng., 61(2), pp. 245–258. [CrossRef]
Kassai, M., Ge, G., and Simonson, C. J., 2016, “Dehumidification Performance Investigation of Run-Around Membrane Energy Exchanger Systems,” Therm. Sci., 20(6), pp. 1927–1938. [CrossRef]
Abdel-Salam, M. R. H., Besant, R. W., and Simonson, C. J., 2016, “Design and Testing of a Novel 3-Fluid Liquid-to-Air Membrane Energy Exchanger (3-Fluid LAMEE),” Int. J. Heat Mass Transfer, 92, pp. 312–329. [CrossRef]
Abdel-Salam, M. R. H., Besant, R. W., and Simonson, C. J., 2016, “Performance Testing of a Novel 3-Fluid Liquid-to-Air Membrane Energy Exchanger (3-Fluid LAMEE) Under Desiccant Solution Regeneration Operating Conditions,” Int. J. Heat Mass Transfer, 95, pp. 773–786. [CrossRef]
Huang, S.-M., Qiu, D., Huang, W., Yang, M., and Xiao, H., 2017, “Laminar Flow and Heat Transfer in a Quasi-Counter Flow Parallel-Plate Membrane Channel in the Solution Side With Cooling Tubes,” Int. J. Heat Mass Transfer, 105, pp. 769–780. [CrossRef]
Zhang, L.-Z., 2010, “An Analytical Solution for Heat Mass Transfer in a Hollow-Fiber Membrane Based Air-to-Air Heat Mass Exchanger,” J. Membr. Sci., 360(1–2), pp. 217–225.
Costello, M. J., Fane, A. G., Hogan, P. A., and Schofield, R. W., 1993, “The Effect of Shell Side Hydrodynamics on the Performance of Axial Flow Hollow Fibre Modules,” J. Membr. Sci., 80(1), pp. 1–11. [CrossRef]
Kaita, Y., 2001, “Thermodynamic Properties of Lithium Bromide–Water Solutions at High Temperatures,” Int. J. Refrig., 24(5), pp. 374–390. [CrossRef]
Rasouli, M., Akbari, S., Simonson, C. J., and Besant, R. W., 2014, “Energetic, Economic and Environmental Analysis of a Health-Care Facility HVAC System Equipped With a Run-Around Membrane Energy Exchanger,” Energy Build., 69, pp. 112–121. [CrossRef]
The Free Library. S.v., “Application of a Run-Around Membrane Energy Exchanger in an Office Building HVAC System.—Free Online Library,” [Online]. https://www.thefreelibrary.com/Application+of+a+run-around+membrane+energy+exchanger+in+an+office…-a0272754954. Accessed April 6, 2019.

Figures

Grahic Jump Location
Fig. 1

Schematic of the solar-assisted liquid desiccant air conditioning system

Grahic Jump Location
Fig. 2

(a) Design demonstration of the hollow fiber, redrawn from Ref. [26] and (b) parallel-plate membrane modules for heat and humidity transfer, redrawn from Ref. [27]

Grahic Jump Location
Fig. 3

Heat and moisture transfer model in the membrane module contactor: (a) mass balance and (b) energy balance

Grahic Jump Location
Fig. 4

Flow chart of the problem solution

Grahic Jump Location
Fig. 5

Variation of (a) latent, (b) sensible, (c) total effectiveness, and (d) moisture removal rate with the thermal capacity ratio

Grahic Jump Location
Fig. 6

Variation of (a) latent, (b) sensible, (c) total effectiveness, and (d) moisture removal rate with the number of transfer units

Grahic Jump Location
Fig. 7

Study the effect of thermal capacity ratio and number-of-transfer units on the sensible heat ratio for hollow-fiber and parallel-plate membrane contactors

Grahic Jump Location
Fig. 8

Influences of ambient air relative humidity (RHamb) on the hollow-fiber dehumidifier effectiveness, SHR, and moisture removal rate

Grahic Jump Location
Fig. 9

Study the effect of the air inlet temperature on the hollow-fiber dehumidifier effectiveness, SHR, and moisture removal rate

Grahic Jump Location
Fig. 10

Effect of the solution inlet temperature on the hollow-fiber dehumidifier effectiveness, SHR, and moisture removal rate

Grahic Jump Location
Fig. 11

The variation of moisture removed in the dehumidifier during a represented day in June, July, and August

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In