Hydrologic design methodologies for prefeasibility studies of small-scale hydro at ungauged sites

1988 ◽  
Vol 15 (3) ◽  
pp. 289-298
Author(s):  
David G. Judge ◽  
James E. Anderson ◽  
Bruce I. McClennan ◽  
Eon T. Park
Keyword(s):  
Small Scale ◽  
Hydroelectric Power ◽  
Flow Curves ◽  
Flow Duration ◽  
Ungauged Sites ◽  
Project Costs ◽  
Flow Duration Curves ◽  
Hydrologic Design ◽  
Electrical Generation ◽  
The Cost

Hydrologic variables such as available flow for electrical generation and its time distribution, together with flood magnitudes, represent the basis for evaluation of potential hydro sites. Economic viability, especially for small-scale hydro sites is very sensitive to these basic hydrologic variables. Unfortunately, many potential small-scale hydro sites are located on ungauged streams and often the cost of deriving the necessary site specific hydrologic information for design is prohibitive in relation to overall project costs. Therefore, regional techniques have been developed for evaluating the necessary hydrologic variables at a prefeasibility level for small-scale ungauged sites anywhere in Canada. Studies concerned with developing regional techniques for application to feasibility level evaluations have been completed for Atlantic Canada, British Columbia, and Ontario.The methodology can be used to estimate the flow duration curve and the turbinable flow curve for ungauged streams. Equations relating characteristics of the curves to physiographic and climatic parameters have been derived for eleven regions across Canada. An example demonstrating application of the new methodology is included. Key words: hydroelectric power, small-hydro, regional hydrology, ungauged streams, flow duration curves, turbinable flow curves.

Transférabilité d’un modèle pluie–débit pour la simulation de courbes de débits classés sur des petits bassins non jaugés de l’Amazonie

2008 ◽  
Vol 35 (9) ◽  
pp. 999-1008 ◽  
Author(s):  
Claudio J.C. Blanco ◽  
Yves Secretan ◽  
Anne-Catherine Favre
Keyword(s):  
Power Production ◽  
Hydroelectric Power ◽  
Rainfall Runoff ◽  
Flow Duration ◽  
Evaluation Approach ◽  
Ungauged Sites ◽  
Flow Duration Curves ◽  
Rainfall Runoff Model ◽  
Runoff Model ◽  
Small Catchments

In Amazonia, because the small catchments are ungauged, it is not possible to analyse them, for example, for hydroelectric power production. Thus, the objective of this paper is to study the transferability of a rainfall–runoff model to simulate flow duration curves for the production of hydroelectric power. The approach is based on the transfer of the impulse response of a model calibrated on two gauged catchments, allowing the evaluation approach permutation between these two catchments. We have, respectively, 7 years and 2 years and 2 months of rainfall and runoff data for these catchments. A sensitivity analysis of the transferability calibration to the sample size is carried out to determine the shortest flow period gauged on the receptor catchment, which produces results comparable to those calibrated with the maximum samples size. This analysis evaluates fieldwork on the ungauged sites of the region.

scholarly journals Regional flow duration curves for ungauged sites in Sicily

2010 ◽  
Vol 7 (5) ◽  
pp. 7059-7078
Author(s):  
F. Viola ◽  
L. V. Noto ◽  
M. Cannarozzo ◽  
G. La Loggia
Keyword(s):  
Water Allocation ◽  
Water Quality Assessment ◽  
Regression Equations ◽  
Large Dataset ◽  
Flow Duration ◽  
Ungauged Sites ◽  
Regional Flow ◽  
Streamflow Data ◽  
Flow Duration Curves ◽  
Gauged Basins

Abstract. Flow duration curves are simple and powerful tools to deal with many hydrological and environmental problems related to water quality assessment, water-use assessment and water allocation. Unfortunately the scarcity of streamflow data enables the use of these instruments only for gauged basins. A regional model is developed here for estimating flow duration curves at ungauged basins in Sicily, Italy. Due to the complex ephemeral behaviour of the examined region, this study distinguishes dry periods, when flows are zero, from wet periods using a three parameters power law to describe the frequency distribution of flows. A large dataset of streamflows has been analysed and the parameters of flow duration curves have been derived for about fifty basins. Regional regression equations have been developed to derive flow duration curves starting from morphological basin characteristics.

Entropy-based neural networks model for flow duration curves at ungauged sites

2015 ◽  
Vol 529 ◽  
pp. 1007-1020 ◽  
Author(s):  
Maya Atieh ◽  
Bahram Gharabaghi ◽  
Ramesh Rudra
Keyword(s):  
Neural Networks ◽  
Flow Duration ◽  
Ungauged Sites ◽  
Flow Duration Curves

scholarly journals Regional flow duration curves for ungauged sites in Sicily

2011 ◽  
Vol 15 (1) ◽  
pp. 323-331 ◽  
Author(s):  
F. Viola ◽  
L. V. Noto ◽  
M. Cannarozzo ◽  
G. La Loggia
Keyword(s):  
Water Allocation ◽  
Water Quality Assessment ◽  
Regression Equations ◽  
Large Dataset ◽  
Flow Duration ◽  
Ungauged Sites ◽  
Regional Flow ◽  
Streamflow Data ◽  
Flow Duration Curves ◽  
Gauged Basins

Abstract. Flow duration curves are simple and powerful tools to deal with many hydrological and environmental problems related to water quality assessment, water-use assessment and water allocation. Unfortunately the scarcity of streamflow data enables the use of these instruments only for gauged basins. A regional model is developed here for estimating flow duration curves at ungauged basins in Sicily, Italy. Due to the complex ephemeral behavior of the examined region, this study distinguishes dry periods, when flows are zero, from wet periods using a three parameters power law to describe the frequency distribution of flows. A large dataset of streamflows has been analyzed and the parameters of flow duration curves have been derived for about fifty basins. Regional regression equations have been developed to derive flow duration curves starting from morphological basin characteristics.

Modular Trough Power Plants

2001 ◽  
Author(s):  
Vahab Hassani ◽  
Henry W. Price
Keyword(s):  
Rural Communities ◽  
Power Systems ◽  
Power Plants ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Market Potential ◽  
Small Scale ◽  
Number Of Factors ◽  
Electrical Generation ◽  
The Cost

Abstract A number of factors are creating an increased market potential for small trough power technology. These include the need for distributed power systems for rural communities worldwide, the need to generate more electricity by non-combustion renewable processes, the need for sustainable power for economic growth in developing countries, and the deregulation and privatization of the electrical generation sector worldwide. Parabolic trough collector technology has been used in large central station power plants. Organic Rankine cycle (ORC) air-cooled modular power units have been successfully applied for large and small-scale geothermal power plants, with over 600 MW of capacity, during the same period. The merging of these two technologies to produce distributed modular power plants in the 200 kW to 10 MW range offers a new application for both technologies. It is our objective in this paper to introduce a modular trough power plant (MTPP) and discuss its performance and the cost of electricity generation from such system.

Sign in / Sign up

Export Citation Format

Share Document