Techno-Economic Analysis of Hydrokinetic Turbines

Abstract

Abstract:In small-scale hydropower scheme, the most important component is electro-mechanical equipment. Since cost contribution of this component is high because hydrokinetic projects require negligible civil works. Turbine and alternator contribute a major fraction of the hydrokinetic projects. Thus, there is a requirement to estimates the electromechanical equipment cost for a hydrokinetic hydropower scheme. The present paper investigates design parameters of the hydrokinetic turbines and intends to develop cost correlation which depends on most critical parameters of hydropower sites such as velocity and power capacity. In this present work, three zero head turbines are considered including straight blade Darrieus, two Stage Savonius, and Gorlov Helical. The size and cost of major components have been calculated based on material, manufacturing, research and design, and assembly costs. Based on cost and site parameters, cost correlation has been developed. The obtained cost has been validated with available zero head turbines in the market and installed projects. A techno-economic analysis has been carried out to select economical hydrokinetic turbine for river and canal application.

Numerical comparison and efficiency analysis of three vertical axis turbine of H-Darrieus type

“…The solidity is a fundamental parameter that determines the geometry of the HDTs and has a significant influence on the HDTs behavior [15]. Symmetric profiles are the most used for wind turbines such as the NACA symmetric profiles with 4 digits (0012, 0015, and 0018) [16,17], especially the NACA0018 profile.…”