Parametric Evaluation of Cross-Flow Turbine Performance

The present paper discusses an experimental investigation of the key parameters influencing cross-flow turbine efficiency. The experiments included measurements of torque, rotational speed, flow rate, and total head in physical models of turbines and nozzles. One physical parameter (flow rate) and s...

Full description

Saved in:
Bibliographic Details
Published in:Journal of energy engineering 1994-04, Vol.120 (1), p.17-34
Main Authors: Desai, V. R, Aziz, N. M
Format: Article
Language:English
Subjects:
130700 - Hydro Energy- Power-Conversion Systems
Applied sciences
EFFICIENCY
Energy
ENERGY EFFICIENCY
Energy. Thermal use of fuels
Engines and turbines
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
HYDRAULIC TURBINES
HYDRO ENERGY
HYDROELECTRIC POWER PLANTS
LOW-HEAD HYDROELECTRIC POWER PLANTS
MACHINERY
PARAMETRIC ANALYSIS
POWER PLANTS
TECHNICAL PAPERS
TURBINES
TURBOMACHINERY
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present paper discusses an experimental investigation of the key parameters influencing cross-flow turbine efficiency. The experiments included measurements of torque, rotational speed, flow rate, and total head in physical models of turbines and nozzles. One physical parameter (flow rate) and six geometric parameters of the turbine were investigated: the angle of water entry to the runner, diameter ratio, number of blades, flow-stream spreading, runner aspect ratio, and blade exit angle. A total of 39 runners and 11 nozzles were tested in 75 different combinations. Analysis performed on the results identified the impact of the different parameters on the turbine efficiency. The results indicate that with careful selection of the cross-flow turine parameters, efficiencies as high as 88.0% with an uncertainty of ±2.4% can be achieved. This is considered an improvement over the claimed maximum efficiency reported in the literature.
ISSN:0733-9402
1943-7897
DOI:10.1061/(ASCE)0733-9402(1994)120:1(17)