Energies, Год журнала: 2025, Номер 18(10), С. 2586 - 2586

Опубликована: Май 16, 2025

In energy transition scenarios, hydropower remains the largest source of renewable electricity generation. However, with respect to other means exploitation, like wind turbines or photovoltaics, very few technological advancements are be expected, due maturity turbines. Therefore, an increase in power production plants can only possible thanks optimization operation and maintenance policies, leading improved performance, reducing losses downtimes. This work proposes a practical approach continuous monitoring operational conditions through non-invasive measurement electrical efficiency generator group. To achieve this, heat-loss based method is introduced, which enables both input power, along their associated uncertainties. applicable for any size, does not require shutdown, and, since it applied generator, used different turbine types, including Kaplan, Francis, Pelton. It also relies on relatively simple instruments such as thermo-cameras, thermo-resistances, thermo-couples, flow meters measure key variables, cooling water inlet outlet temperatures, machine external frame undisturbed ambient temperature, absorbed, rate. The proposed methodology has been tested validated application laboratory test rig. all conditions, heat loss-based showed smaller relative error than standard methods.

Язык: Английский