An increase of hydro-aggregate's installed power and efficiency factor before the revitalization phase

The revitalization of hydro-aggregates should be performed before the life-time expiry of most their parts. But, as in our practice aggregates have been under exploitation much longer then theoretical life-time advices (40, even 50 years), there is a need to estimate the equipment's condition through more sophisticated monitoring, providing the maximum level of safety and availability with minimum investment expenses, before the revitalization finally takes place. That estimation is based on appropriating calculations and measurements needed to take the competent decision. Results of that analysis can be also useful for estimation of the aggregate's power and parameters after the revitalization. In this paper the results of appropriate calculations and measurements for the Hydropower station HE Zvornik are given

An increase of hydro-aggregate's installed power and efficiency factor before the revitalization phase

The revitalization of hydro-aggregates should be performed before the life-time expiry of most their parts. But, as in our practice aggregates have been under exploitation much longer then theoretical life-time advices (40, even 50 years), there is a need to estimate the equipment's condition through more sophisticated monitoring, providing the maximum level of safety and availability with minimum investment expenses, before the revitalization finally takes place. That estimation is based on appropriating calculations and measurements needed to take the competent decision. Results of that analysis can be also useful for estimation of the aggregate's power and parameters after the revitalization. In this paper the results of appropriate calculations and measurements for the Hydropower station HE Zvornik are given

Propeller and combinatory characteristics determination of Kaplan turbine in HPS 'Zvornik' with the aim of increasing its efficiency

U radu su prikazani rezultati merenja i proračuna koji su urađeni na agregatu A3 u HE 'Zvornik', a u cilju određivanja propelernih i kombinatorskih karakteristika Kaplanove turbine. Specifična pažnja je posvećena određivanju koeficijenta protoka protokomera Vinter-Kenedi. Ova merenja daju rezultate koji omogućuju rad turbine u tačkama optimalnih stepena korisnosti. .The measurement and calculation results which were performed at unit A3 in HPS 'Zvornik' are presented in this paper with the aim of Kaplan turbine propeller and combinatory characteristics determination. Special attention is given to the Winter-Kennedy discharge coefficient determination. These measurement procedures gave the opportunity for unit operation at optimal efficiencies.

An increase of hydro-aggregate's installed power and efficiency factor before the revitalization phase

The revitalization of hydro-aggregates should be performed before the life-time expiry of most their parts. But, as in our practice aggregates have been under exploitation much longer then theoretical life-time advices (40, even 50 years), there is a need to estimate the equipment's condition through more sophisticated monitoring, providing the maximum level of safety and availability with minimum investment expenses, before the revitalization finally takes place. That estimation is based on appropriating calculations and measurements needed to take the competent decision. Results of that analysis can be also useful for estimation of the aggregate's power and parameters after the revitalization. In this paper the results of appropriate calculations and measurements for the Hydropower station HE Zvornik are given.