Variable flow controls of closed system pumps for energy savings in maritime power systems

Chun-Lien Su; Chi-Hsiang Liao; Tso-Chu Chou; Ming-Hung Chou; Josep M. Guerrero

doi:10.1109/IAS.2016.7731818

Variable flow controls of closed system pumps for energy savings in maritime power systems

Chun-Lien Su, Chi-Hsiang Liao, Tso-Chu Chou, Ming-Hung Chou, Josep M. Guerrero

AAU Energy

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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Abstract

Pumps are extensively used in maritime industries as marine vessels utilize a wide range of pumps and pumping techniques to transfer and distribute all types of air and fluids. The electrical energy consumed by the various motors accounts for about 70% of a vessel’s total power consumption, and this presents a problem in unique marine environments. Such situations are especially conducive to energy-saving strategies using variable frequency drives (VFDs) in centrifugal load service. This paper presents the design and results of applying variable frequency constant pressure technology in closed system pumps on marine vessels. The existing problem of traditional control methods for closed system pumps is analyzed and a mathematical model for variable flow controls with the appropriate control settings is derived. The performance of the proposed method is demonstrated and verified through experimental and field tests of a practical auxiliary boiler feed water management system on a commercial vessel. It is proved that the proposed method can maintain constant water pressure for closed system pumps and provide an efficient way to measure energy savings and maintenance benefits. The results serve to highlight the significant energy-saving opportunities for retrofitted and new VFD installations in marine power applications.

Original language	English
Title of host publication	Proceedings of Industry Applications Society Annual Meeting, 2016 IEEE
Number of pages	8
Publisher	IEEE Press
Publication date	Oct 2016
ISBN (Electronic)	978-1-4799-8397-1
DOIs	https://doi.org/10.1109/IAS.2016.7731818
Publication status	Published - Oct 2016
Event	IEEE Industry Applications Society Annual Meeting 2016 - Portland, United States Duration: 2 Oct 2016 → 6 Oct 2016 http://www.ewh.ieee.org/soc/ias/2016/

Conference

Conference	IEEE Industry Applications Society Annual Meeting 2016
Country/Territory	United States
City	Portland
Period	02/10/2016 → 06/10/2016
Internet address	http://www.ewh.ieee.org/soc/ias/2016/

Series	Industry Applications Society. I E E E - I A S Annual Meeting. Conference Record
ISSN	0197-2618

Keywords

Closed system pump
Constant pressure
Energy efficiency
Maritime power system
Variable flow control

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10.1109/IAS.2016.7731818

IEEE_IAS_VFD_closed pump_marine_073016-2Submitted manuscript, 582 KB

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Cite this

@inproceedings{ae82a45cfb1f4fd49cb60782bfff05a6,

title = "Variable flow controls of closed system pumps for energy savings in maritime power systems",

abstract = "Pumps are extensively used in maritime industries as marine vessels utilize a wide range of pumps and pumping techniques to transfer and distribute all types of air and fluids. The electrical energy consumed by the various motors accounts for about 70% of a vessel{\textquoteright}s total power consumption, and this presents a problem in unique marine environments. Such situations are especially conducive to energy-saving strategies using variable frequency drives (VFDs) in centrifugal load service. This paper presents the design and results of applying variable frequency constant pressure technology in closed system pumps on marine vessels. The existing problem of traditional control methods for closed system pumps is analyzed and a mathematical model for variable flow controls with the appropriate control settings is derived. The performance of the proposed method is demonstrated and verified through experimental and field tests of a practical auxiliary boiler feed water management system on a commercial vessel. It is proved that the proposed method can maintain constant water pressure for closed system pumps and provide an efficient way to measure energy savings and maintenance benefits. The results serve to highlight the significant energy-saving opportunities for retrofitted and new VFD installations in marine power applications.",

keywords = "Closed system pump, Constant pressure, Energy efficiency, Maritime power system, Variable flow control ",

author = "Chun-Lien Su and Chi-Hsiang Liao and Tso-Chu Chou and Ming-Hung Chou and Guerrero, {Josep M.}",

year = "2016",

month = oct,

doi = "10.1109/IAS.2016.7731818",

language = "English",

series = "Industry Applications Society. I E E E - I A S Annual Meeting. Conference Record",

publisher = "IEEE Press",

booktitle = "Proceedings of Industry Applications Society Annual Meeting, 2016 IEEE",

note = "IEEE Industry Applications Society Annual Meeting 2016 ; Conference date: 02-10-2016 Through 06-10-2016",

url = "http://www.ewh.ieee.org/soc/ias/2016/",

}

Su, C-L, Liao, C-H, Chou, T-C, Chou, M-H & Guerrero, JM 2016, Variable flow controls of closed system pumps for energy savings in maritime power systems. in Proceedings of Industry Applications Society Annual Meeting, 2016 IEEE. IEEE Press, Industry Applications Society. I E E E - I A S Annual Meeting. Conference Record, IEEE Industry Applications Society Annual Meeting 2016, Portland, United States, 02/10/2016. https://doi.org/10.1109/IAS.2016.7731818

Variable flow controls of closed system pumps for energy savings in maritime power systems. / Su, Chun-Lien; Liao, Chi-Hsiang; Chou, Tso-Chu et al.
Proceedings of Industry Applications Society Annual Meeting, 2016 IEEE. IEEE Press, 2016. (Industry Applications Society. I E E E - I A S Annual Meeting. Conference Record).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Variable flow controls of closed system pumps for energy savings in maritime power systems

AU - Su, Chun-Lien

AU - Liao, Chi-Hsiang

AU - Chou, Tso-Chu

AU - Chou, Ming-Hung

AU - Guerrero, Josep M.

PY - 2016/10

Y1 - 2016/10

N2 - Pumps are extensively used in maritime industries as marine vessels utilize a wide range of pumps and pumping techniques to transfer and distribute all types of air and fluids. The electrical energy consumed by the various motors accounts for about 70% of a vessel’s total power consumption, and this presents a problem in unique marine environments. Such situations are especially conducive to energy-saving strategies using variable frequency drives (VFDs) in centrifugal load service. This paper presents the design and results of applying variable frequency constant pressure technology in closed system pumps on marine vessels. The existing problem of traditional control methods for closed system pumps is analyzed and a mathematical model for variable flow controls with the appropriate control settings is derived. The performance of the proposed method is demonstrated and verified through experimental and field tests of a practical auxiliary boiler feed water management system on a commercial vessel. It is proved that the proposed method can maintain constant water pressure for closed system pumps and provide an efficient way to measure energy savings and maintenance benefits. The results serve to highlight the significant energy-saving opportunities for retrofitted and new VFD installations in marine power applications.

AB - Pumps are extensively used in maritime industries as marine vessels utilize a wide range of pumps and pumping techniques to transfer and distribute all types of air and fluids. The electrical energy consumed by the various motors accounts for about 70% of a vessel’s total power consumption, and this presents a problem in unique marine environments. Such situations are especially conducive to energy-saving strategies using variable frequency drives (VFDs) in centrifugal load service. This paper presents the design and results of applying variable frequency constant pressure technology in closed system pumps on marine vessels. The existing problem of traditional control methods for closed system pumps is analyzed and a mathematical model for variable flow controls with the appropriate control settings is derived. The performance of the proposed method is demonstrated and verified through experimental and field tests of a practical auxiliary boiler feed water management system on a commercial vessel. It is proved that the proposed method can maintain constant water pressure for closed system pumps and provide an efficient way to measure energy savings and maintenance benefits. The results serve to highlight the significant energy-saving opportunities for retrofitted and new VFD installations in marine power applications.

KW - Closed system pump

KW - Constant pressure

KW - Energy efficiency

KW - Maritime power system

KW - Variable flow control

U2 - 10.1109/IAS.2016.7731818

DO - 10.1109/IAS.2016.7731818

M3 - Article in proceeding

T3 - Industry Applications Society. I E E E - I A S Annual Meeting. Conference Record

BT - Proceedings of Industry Applications Society Annual Meeting, 2016 IEEE

PB - IEEE Press

T2 - IEEE Industry Applications Society Annual Meeting 2016

Y2 - 2 October 2016 through 6 October 2016

ER -

Variable flow controls of closed system pumps for energy savings in maritime power systems

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