In the Global South, pico- and micro-hydropower turbines are often made by local workshops. Despite several advantageous features, e.g., a high power density capacity to handle silt, there is no commonly available Turgo turbine design appropriate for manufacture. Technological developments including internet, CAD, additive manufacturing increase opportunity precisely transfer designs around wor...

The purpose of this study was to document differences in perceived skating characteristics resulting from three unique cross sectional skate blade profiles. Sixteen (n=16) University level hockey players were used in this double blind study looking at the perceived performance differences of four different skate blade profiles. No significant differences were found between skate blade profiles,...

To meet sustainable development goals and address concerns on climate change, much of the world's energy demand is expected to be delivered from clean alternative sources. Small-scale wind turbines have proven applicable for off-grid electrification. The objective this study present details design manufacture a 1 kW turbine blade specified conditions. Blade element moment theory adopted in geom...

A detailed review of the current state-of-art for wind turbine blade design is presented, including theoretical maximum efficiency, propulsion, practical efficiency, HAWT blade design, and blade loads. The review provides a complete picture of wind turbine blade design and shows the dominance of modern turbines almost exclusive use of horizontal axis rotors. The aerodynamic design principles fo...

large-scaled blade has posed many problems related to design and production. After introducing the features of blade with thick airfoils and flatback, based on relevant parameters of Huaren 100 kW wind turbine, the paper designed blade with thick airfoils and flatback, introduced blade parameter design, and analyzed the aerodynamic performance of blades using GH bladed software, obtaining the r...

Centrifugal compressors are a key piece of equipment for modern production. Among the components of the centrifugal compressor, the impeller is a pivotal part as it is used to transform kinetic energy into pressure energy. Blade crack condition monitoring and classification has been broadly investigated in the industrial and academic area. In this research, a pressure pulsation (PP) sensor arra...

The purpose of this paper is to explore and define an adequate numerical setting for the computation aerodynamic performances wind turbines various shapes sizes, which offers possibility choosing a suitable approach minimal complexity future research. Here, mechanical power, thrust, power coefficient, thrust pressure distribution along blade, relative velocity contoure, at different speeds stre...

High cycle fatigue (HCF) cracks generated by compressor blade vibrations are a common source of failure in gas turbine engines. Current methods for crack detection are costly, time consuming, and prone to errors. In-situ blade vibration detection would help operators avoid critical engine speeds, and help infer the presence of cracks via a change in the mode of a blade. Blade vibrations can be ...

The Blade server enterprise has remained the firmest developing sector of the global server enterprise aimed at numerous ages and the tendency is likely to remain conferring to commerce investigators. IDC described in late August, 2007 that server blade enterprise advancement persistently accelerated by 36.7% growth yearly with clients increasing their blade distributions and retailers intensif...

Turbodrill is a type of hydraulic axial turbomachinery which has a multistage blade consisting of stators and rotors. In this paper, a turbodrill blade that can be applied in crystallized section under high temperature and pressure conditions is developed. On the basis of Euler equations, the law of energy transfer is analyzed and the output characteristics of turbodrill blade are proposed. Mor...