Abstract
Proper design of hydrotechnical structures should meet the basic principles of sustainable development, i.e., the investment should be designed and made in technical terms, in accordance with the applicable standards and regulations, provide certain economic benefits and guarantee the absence of environmental hazards. The article examines the work of a Small Hydropower Plant (SHP) in Jaracz in technical and hydraulic terms. It also provides the analysis of the effect of changes in parameters such as water head, flow rate velocity, and shape of trash rack bars on expected SHP profits. The assessment of hydraulic performance consisted of investigating the impact of reduced flow rate and water head on power output and energy production. The analyses were carried out for the Francis turbine installed in the facility. Since the loss of channel capacity is shaped by plant debris accumulated on trash racks, the hydraulic performance assessment was extended to include the analysis of the species and weight composition of such accumulation on fine trash racks located in the inlet channel. Field research involved collecting organic material from the growing season (spring, summer) and post-growing season (autumn). Technical conditions were developed on the basis of the current technical condition of the inlet channel; there were also made simulations of its deteriorating state, as well as its impact on the received energy and economic benefits.
Highlights
Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs
This paper analyses the impact of changes in parameters related to Small Hydropower Plant (SHP) hydraulics on the
This paper analyses the impact of changes in parameters related to SHP hydraulics on the hydraulic and power losses of power plants
Summary
Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs. The 3 × 20 strategy consists in cutting greenhouse gas emissions by 20%, increasing the share of energy from renewable sources to 20% and improving energy efficiency to 20% [2]. The concept of sustainable development is the overarching objective of the European Union and assumes an increase in the level and quality of life by reaching a compromise in economic, social and environmental development. The desire to reduce greenhouse gas emissions and, on the other hand, the search for energy sources alternative to fossil fuels, make the use of renewable energy sources increasingly common. Hydropower is recognised as very important in many countries [3], because it reduces pollution and greenhouse gas emissions; and in addition, it may have a positive global impact on the quality of life [4].
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