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Head-loss reduction in the water-intakes/outlets of pumped-storage tower (shaft)-type power plants

Mikhailov, I. E. / Polikarpov, Yu. V. / Fink, A. K.

Conclusions 1. The installation of a conical transitional segment between a tower (shaft)-type water intake-outlet and penstock affects a significant reduction in head loss in the pump mode, but has virtually no effect on the magnitude of the latter in the pump mode. 2. The existence of a conical transitional element in the pump mode appreciably lowers the discharge velocities of the flow and increases the effective height of the water-passing openings by 1.5–1.7 times when the height of the intake openings h≥0.5dp. 3. The head losses in the intake-outlet decrease in the pump mode of operation with increasing degree of expansion of the transitional diffusor segment.

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Head-loss reduction in the water-intakes/outlets of pumped-storage tower (shaft)-type power plants

Mikhailov, I. E. / Polikarpov, Yu. V. / Fink, A. K.

Conclusions 1. The installation of a conical transitional segment between a tower (shaft)-type water intake-outlet and penstock affects a significant reduction in head loss in the pump mode, but has virtually no effect on the magnitude of the latter in the pump mode. 2. The existence of a conical transitional element in the pump mode appreciably lowers the discharge velocities of the flow and increases the effective height of the water-passing openings by 1.5–1.7 times when the height of the intake openings h≥0.5dp. 3. The head losses in the intake-outlet decrease in the pump mode of operation with increasing degree of expansion of the transitional diffusor segment.

Head-loss reduction in the water-intakes/outlets of pumped-storage tower (shaft)-type power plants

Mikhailov, I. E. / Polikarpov, Yu. V. / Fink, A. K.

Conclusions 1. The installation of a conical transitional segment between a tower (shaft)-type water intake-outlet and penstock affects a significant reduction in head loss in the pump mode, but has virtually no effect on the magnitude of the latter in the pump mode. 2. The existence of a conical transitional element in the pump mode appreciably lowers the discharge velocities of the flow and increases the effective height of the water-passing openings by 1.5–1.7 times when the height of the intake openings h≥0.5dp. 3. The head losses in the intake-outlet decrease in the pump mode of operation with increasing degree of expansion of the transitional diffusor segment.

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Titel:

Head-loss reduction in the water-intakes/outlets of pumped-storage tower (shaft)-type power plants

Beteiligte:

Mikhailov, I. E. (Autor:in) / Polikarpov, Yu. V. (Autor:in) / Fink, A. K. (Autor:in)

Erschienen in:

Hydrotechnical Construction ; 26 ; 724-727

Erscheinungsdatum:

01.11.1992

Format / Umfang:

4 pages

ISSN:

1570-1468 , 0018-8220

DOI:

https://doi.org/10.1007/BF01545542

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Power Plant , Power Engineer , Renewable Energy Source , Structural Foundation , Hydraulic Engineer Engineering , Energy Technology , Power Electronics, Electrical Machines and Networks , Renewable and Green Energy , Geoengineering, Foundations, Hydraulics

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