An experimental study is carried out investigating hydraulic performance for various designs of dual-mechanical-seal cartridges with integral pumping-rings. The tested devices are classified into two main families: radial-flow and axial-flow. The radial-flow family utilizes the modified-paddle-wheel (MPW) pumping ring with either a radial or a tangential oriented cartridge outlet port, while the axial-flow family utilizes the pumping scroll (PS) pumping ring in the following cartridge-geometries: single-pumping-scroll (SS) and double-pumping-scroll (DS); as both types can be of either a radial or a tangential outlet port; and of an internal clearance value complying with American Petroleum Institute (API) 682 standard or smaller clearance. An experimental setup is constructed, and appropriate instrumentation is employed to measure inlet pressure, outlet pressure, rotational speed, and barrier fluid flow rate acquiring flow-head characteristic curves. Moreover, empirical generalized characteristic curves are deduced from experimental observations obtained from the present study and previous companion work. The generalized curves can be employed in estimating pumping ring performance for a different size or other operation conditions such as varying rotational speed or fluid type. They can be also utilized to validate numerical simulations for geometrically similar designs.
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August 2018
Research-Article
Integral Pumping Devices for Dual Mechanical Seals: Hydraulic Performance Generalization Using Dimensional Analysis
Hassan A. Warda,
Hassan A. Warda
Professor
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: hassan.warda@usa.net
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: hassan.warda@usa.net
Search for other works by this author on:
Ihab G. Adam,
Ihab G. Adam
Department of Mechanical Engineering,
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: ihabadam@yahoo.com
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: ihabadam@yahoo.com
Search for other works by this author on:
Ahmed B. Rashad,
Ahmed B. Rashad
Department of Mechanical Engineering,
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: a_bahaa99@yahoo.com
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: a_bahaa99@yahoo.com
Search for other works by this author on:
Muhannad W. Gamal-Aldin
Muhannad W. Gamal-Aldin
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: muhannad.wg@alexu.edu.eg
Alexandria University,
Alexandria 21544, Egypt
e-mail: muhannad.wg@alexu.edu.eg
Search for other works by this author on:
Hassan A. Warda
Professor
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: hassan.warda@usa.net
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: hassan.warda@usa.net
Ihab G. Adam
Department of Mechanical Engineering,
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: ihabadam@yahoo.com
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: ihabadam@yahoo.com
Ahmed B. Rashad
Department of Mechanical Engineering,
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: a_bahaa99@yahoo.com
Arab Academy for Science, Technology &
Maritime Transport,
Smart Village,
Cairo 12577, Egypt;
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: a_bahaa99@yahoo.com
Muhannad W. Gamal-Aldin
Department of Mechanical Engineering,
Alexandria University,
Alexandria 21544, Egypt
e-mail: muhannad.wg@alexu.edu.eg
Alexandria University,
Alexandria 21544, Egypt
e-mail: muhannad.wg@alexu.edu.eg
1Corresponding author.
Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received April 1, 2017; final manuscript received November 6, 2017; published online May 15, 2018. Editor: Jerzy T. Sawicki.
J. Eng. Gas Turbines Power. Aug 2018, 140(8): 082507 (9 pages)
Published Online: May 15, 2018
Article history
Received:
April 1, 2017
Revised:
November 6, 2017
Citation
Warda, H. A., Adam, I. G., Rashad, A. B., and Gamal-Aldin, M. W. (May 15, 2018). "Integral Pumping Devices for Dual Mechanical Seals: Hydraulic Performance Generalization Using Dimensional Analysis." ASME. J. Eng. Gas Turbines Power. August 2018; 140(8): 082507. https://doi.org/10.1115/1.4039083
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