Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier

Zhipeng He; Caihang Liang

doi:doi:10.11648/j.ijepe.20200906.12

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Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier

Zhipeng He, Caihang Liang

Published in International Journal of Energy and Power Engineering (Volume 9, Issue 6)

Received: 19 November 2020 Accepted: 1 December 2020 Published: 16 December 2020

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Abstract

The counter hollow fiber membrane-based humidifier is used for air humidification, which avoids the problem of liquid droplets carryover in traditional liquid humidification technology. In this study, an experimental rig was established for the hollow fiber membrane humidification system. The effects of air mass flow rate, air temperature, air relative humidity, water mass flow rate, water temperature on air humidity ratio increase, air temperature difference, power consumption per unit of humidification, humidification efficiency, energy efficiency, exergy destruction and exergy efficiency were experimentally investigated using the energy and exergy method. The results reveal the enhancement of the exergy efficiency with the increase in inlet air relative humidity, inlet air dry bulb temperature, air mass flow rate, and water mass flow rate. The results show that the humidification performance of the system is strongly influenced by the water temperature, while the humidification effect is more significant for the low temperature and low air humidity. It was found that as the relative humidity and dry bulb temperature of the air increased, the exergy destruction decreased significantly and the exergy efficiency increased. Increasing the air mass flow rate and water flow temperature resulted in an increase in both exergy destruction and exergy efficiency, while increasing the water flow rate had little effect on exergy destruction and fire efficiency. The exergy efficiency of the system ranged from 0.37 to 0.71. The maximum exergy destruction was 3.74 W, which occurred at air RH_a,1=30%, air temperature T_a,1=30°C, water temperature T_w,1=28°C, and air and water flow rates of 32 kg/h and 7 kg/h, respectively. The humidification efficiency of the system ranged from 0.712 to 0.925, and the power consumption per unit of humidification ranged from 0.94 g/(h•W) to 12.50 g/(h•W).

Published in	International Journal of Energy and Power Engineering (Volume 9, Issue 6)
DOI	10.11648/j.ijepe.20200906.12
Page(s)	95-107
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Hollow Fiber Membrane, Air Humidification, Exergy Efficiency, Mass Transfer

References

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APA Style

Zhipeng He, Caihang Liang. (2020). Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier. International Journal of Energy and Power Engineering, 9(6), 95-107. https://doi.org/10.11648/j.ijepe.20200906.12

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ACS Style

Zhipeng He; Caihang Liang. Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier. Int. J. Energy Power Eng. 2020, 9(6), 95-107. doi: 10.11648/j.ijepe.20200906.12

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AMA Style

Zhipeng He, Caihang Liang. Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier. Int J Energy Power Eng. 2020;9(6):95-107. doi: 10.11648/j.ijepe.20200906.12

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@article{10.11648/j.ijepe.20200906.12,
  author = {Zhipeng He and Caihang Liang},
  title = {Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier},
  journal = {International Journal of Energy and Power Engineering},
  volume = {9},
  number = {6},
  pages = {95-107},
  doi = {10.11648/j.ijepe.20200906.12},
  url = {https://doi.org/10.11648/j.ijepe.20200906.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20200906.12},
  abstract = {The counter hollow fiber membrane-based humidifier is used for air humidification, which avoids the problem of liquid droplets carryover in traditional liquid humidification technology. In this study, an experimental rig was established for the hollow fiber membrane humidification system. The effects of air mass flow rate, air temperature, air relative humidity, water mass flow rate, water temperature on air humidity ratio increase, air temperature difference, power consumption per unit of humidification, humidification efficiency, energy efficiency, exergy destruction and exergy efficiency were experimentally investigated using the energy and exergy method. The results reveal the enhancement of the exergy efficiency with the increase in inlet air relative humidity, inlet air dry bulb temperature, air mass flow rate, and water mass flow rate. The results show that the humidification performance of the system is strongly influenced by the water temperature, while the humidification effect is more significant for the low temperature and low air humidity. It was found that as the relative humidity and dry bulb temperature of the air increased, the exergy destruction decreased significantly and the exergy efficiency increased. Increasing the air mass flow rate and water flow temperature resulted in an increase in both exergy destruction and exergy efficiency, while increasing the water flow rate had little effect on exergy destruction and fire efficiency. The exergy efficiency of the system ranged from 0.37 to 0.71. The maximum exergy destruction was 3.74 W, which occurred at air RHa,1=30%, air temperature Ta,1=30°C, water temperature Tw,1=28°C, and air and water flow rates of 32 kg/h and 7 kg/h, respectively. The humidification efficiency of the system ranged from 0.712 to 0.925, and the power consumption per unit of humidification ranged from 0.94 g/(h•W) to 12.50 g/(h•W).},
 year = {2020}
}

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TY  - JOUR
T1  - Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier
AU  - Zhipeng He
AU  - Caihang Liang
Y1  - 2020/12/16
PY  - 2020
N1  - https://doi.org/10.11648/j.ijepe.20200906.12
DO  - 10.11648/j.ijepe.20200906.12
T2  - International Journal of Energy and Power Engineering
JF  - International Journal of Energy and Power Engineering
JO  - International Journal of Energy and Power Engineering
SP  - 95
EP  - 107
PB  - Science Publishing Group
SN  - 2326-960X
UR  - https://doi.org/10.11648/j.ijepe.20200906.12
AB  - The counter hollow fiber membrane-based humidifier is used for air humidification, which avoids the problem of liquid droplets carryover in traditional liquid humidification technology. In this study, an experimental rig was established for the hollow fiber membrane humidification system. The effects of air mass flow rate, air temperature, air relative humidity, water mass flow rate, water temperature on air humidity ratio increase, air temperature difference, power consumption per unit of humidification, humidification efficiency, energy efficiency, exergy destruction and exergy efficiency were experimentally investigated using the energy and exergy method. The results reveal the enhancement of the exergy efficiency with the increase in inlet air relative humidity, inlet air dry bulb temperature, air mass flow rate, and water mass flow rate. The results show that the humidification performance of the system is strongly influenced by the water temperature, while the humidification effect is more significant for the low temperature and low air humidity. It was found that as the relative humidity and dry bulb temperature of the air increased, the exergy destruction decreased significantly and the exergy efficiency increased. Increasing the air mass flow rate and water flow temperature resulted in an increase in both exergy destruction and exergy efficiency, while increasing the water flow rate had little effect on exergy destruction and fire efficiency. The exergy efficiency of the system ranged from 0.37 to 0.71. The maximum exergy destruction was 3.74 W, which occurred at air RHa,1=30%, air temperature Ta,1=30°C, water temperature Tw,1=28°C, and air and water flow rates of 32 kg/h and 7 kg/h, respectively. The humidification efficiency of the system ranged from 0.712 to 0.925, and the power consumption per unit of humidification ranged from 0.94 g/(h•W) to 12.50 g/(h•W).
VL  - 9
IS  - 6
ER  -

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Author Information

Zhipeng He

School of Mechano-Electronic Engineering, Guilin University of Electronic Technology, Guilin, China
Caihang Liang

School of Mechano-Electronic Engineering, Guilin University of Electronic Technology, Guilin, China

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APA Style

Zhipeng He, Caihang Liang. (2020). Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier. International Journal of Energy and Power Engineering, 9(6), 95-107. https://doi.org/10.11648/j.ijepe.20200906.12

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ACS Style

Zhipeng He; Caihang Liang. Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier. Int. J. Energy Power Eng. 2020, 9(6), 95-107. doi: 10.11648/j.ijepe.20200906.12

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AMA Style

Zhipeng He, Caihang Liang. Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier. Int J Energy Power Eng. 2020;9(6):95-107. doi: 10.11648/j.ijepe.20200906.12

Copy | Download

@article{10.11648/j.ijepe.20200906.12,
  author = {Zhipeng He and Caihang Liang},
  title = {Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier},
  journal = {International Journal of Energy and Power Engineering},
  volume = {9},
  number = {6},
  pages = {95-107},
  doi = {10.11648/j.ijepe.20200906.12},
  url = {https://doi.org/10.11648/j.ijepe.20200906.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20200906.12},
  abstract = {The counter hollow fiber membrane-based humidifier is used for air humidification, which avoids the problem of liquid droplets carryover in traditional liquid humidification technology. In this study, an experimental rig was established for the hollow fiber membrane humidification system. The effects of air mass flow rate, air temperature, air relative humidity, water mass flow rate, water temperature on air humidity ratio increase, air temperature difference, power consumption per unit of humidification, humidification efficiency, energy efficiency, exergy destruction and exergy efficiency were experimentally investigated using the energy and exergy method. The results reveal the enhancement of the exergy efficiency with the increase in inlet air relative humidity, inlet air dry bulb temperature, air mass flow rate, and water mass flow rate. The results show that the humidification performance of the system is strongly influenced by the water temperature, while the humidification effect is more significant for the low temperature and low air humidity. It was found that as the relative humidity and dry bulb temperature of the air increased, the exergy destruction decreased significantly and the exergy efficiency increased. Increasing the air mass flow rate and water flow temperature resulted in an increase in both exergy destruction and exergy efficiency, while increasing the water flow rate had little effect on exergy destruction and fire efficiency. The exergy efficiency of the system ranged from 0.37 to 0.71. The maximum exergy destruction was 3.74 W, which occurred at air RHa,1=30%, air temperature Ta,1=30°C, water temperature Tw,1=28°C, and air and water flow rates of 32 kg/h and 7 kg/h, respectively. The humidification efficiency of the system ranged from 0.712 to 0.925, and the power consumption per unit of humidification ranged from 0.94 g/(h•W) to 12.50 g/(h•W).},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Experimental Study on Energy and Exergy Analysis of a Counter Hollow Fiber Membrane-based Humidifier
AU  - Zhipeng He
AU  - Caihang Liang
Y1  - 2020/12/16
PY  - 2020
N1  - https://doi.org/10.11648/j.ijepe.20200906.12
DO  - 10.11648/j.ijepe.20200906.12
T2  - International Journal of Energy and Power Engineering
JF  - International Journal of Energy and Power Engineering
JO  - International Journal of Energy and Power Engineering
SP  - 95
EP  - 107
PB  - Science Publishing Group
SN  - 2326-960X
UR  - https://doi.org/10.11648/j.ijepe.20200906.12
AB  - The counter hollow fiber membrane-based humidifier is used for air humidification, which avoids the problem of liquid droplets carryover in traditional liquid humidification technology. In this study, an experimental rig was established for the hollow fiber membrane humidification system. The effects of air mass flow rate, air temperature, air relative humidity, water mass flow rate, water temperature on air humidity ratio increase, air temperature difference, power consumption per unit of humidification, humidification efficiency, energy efficiency, exergy destruction and exergy efficiency were experimentally investigated using the energy and exergy method. The results reveal the enhancement of the exergy efficiency with the increase in inlet air relative humidity, inlet air dry bulb temperature, air mass flow rate, and water mass flow rate. The results show that the humidification performance of the system is strongly influenced by the water temperature, while the humidification effect is more significant for the low temperature and low air humidity. It was found that as the relative humidity and dry bulb temperature of the air increased, the exergy destruction decreased significantly and the exergy efficiency increased. Increasing the air mass flow rate and water flow temperature resulted in an increase in both exergy destruction and exergy efficiency, while increasing the water flow rate had little effect on exergy destruction and fire efficiency. The exergy efficiency of the system ranged from 0.37 to 0.71. The maximum exergy destruction was 3.74 W, which occurred at air RHa,1=30%, air temperature Ta,1=30°C, water temperature Tw,1=28°C, and air and water flow rates of 32 kg/h and 7 kg/h, respectively. The humidification efficiency of the system ranged from 0.712 to 0.925, and the power consumption per unit of humidification ranged from 0.94 g/(h•W) to 12.50 g/(h•W).
VL  - 9
IS  - 6
ER  -

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