The modification of Amazonian rivers by the construction of megaprojects of hydroelectric dams has widely increased over the last decade. Robust monitoring programs have been rarely conducted prior to the establishment of dams to measure to what extent the fauna, and its associated habitats may be affected by upcoming impacts. Using bats as models, we performed analyses throughout the area unde...

Hydraulic turbines constitute an essential component within the hydroelectric power generation industry, contributing to renewable energy production with minimal environmental pollution. Maintaining stable turbine operation presents a considerable challenge, which necessitates effective fault diagnosis and warning systems. Timely efficient w arnings are particularly vital, as they enable person...

Abstract The Power Drive Unit (PDU) is the power source of aircraft high-lift system (HLS), which converts hydraulic or electric energy into mechanical for output, and deflects flap/slat through transmission lines to increase wing area improve lift. Two sets motor subsystems working simultaneously are used in Active-Active PDU traditional reliability system. In this paper, an Hydroelectric Hybr...

Abstract The aim of this work is the implementation an optimization model for a hydrogen production facility connected to refuelling station heavy-duty vehicles, operating in field waste management and transportation. composed by two subsequent mixed integer linear programming problems. first problem addresses vehicle schedule second deals with plant design operation. outputs are operation para...

The purpose of the study was to analyze foundation's filtration strength and HPP building's shear stability after 38 years operation as part Tuyamuyun hydroelectric complex on Amudarya River. analysis carried out based field data obtained with help 16 piezometers installed in two alignments within block building vertical drainages grassland. constructed graphs water pressure fluctuations coinci...

P ERSONAL transportation offers people freedom, but this choice of freedom creates a conflict with growing environmental concerns and the sustainability of humanity's use of natural resources. Hybrid electric vehicles (HEVs) improve fuel efficiency by optimizing powertrain operation and recovering kinetic energy during braking, hence reducing liquid fuel consumption in the transportation sector...

Hydropower plants cover almost 70% of the Colombian electrical demand, were built several decades ago, and present low levels digitisation compared to other modern power-generation technologies, e.g., wind turbines, solar PV plants, recently buil hydroelectric t. Renovating power plant equipment investing in modernisation can significantly increase flexibility. Those actions will a plant’s oper...

Automatic water level control methods for open channels have difficulties to keep good performances for a large range of flow and significant unknown disturbances. A new concept called Model-Free Control is applied in this paper for hydroelectric run-of-the river power plants. To modulate power generation, a level trajectory is planned for cascaded power plants. Numerous dynamic simulations sho...