Thermo-Fluid Dynamic Design Study of Single and Double-Inflow Radial and Single-Stage Axial Steam Turbines for Open-Cycle Thermal Energy Conversion Net Power-Producing Experiment Facility in Hawaii

[+] Author and Article Information
T. Schobeiri

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843

J. Energy Resour. Technol 112(1), 41-50 (Mar 01, 1990) (10 pages) doi:10.1115/1.2905711 History: Received July 31, 1988; Revised November 28, 1989; Online April 16, 2008


The results of the study of the optimum thermo-fluid dynamic design concept are presented for turbine units operating within the open-cycle ocean thermal energy conversion (OC-OTEC) systems. The concept is applied to the first OC-OTEC net power producing experiment (NPPE) facility to be installed at Hawaii’s Natural Energy Laboratory. Detailed efficiency and performance calculations were performed for the radial turbine design concept with single and double-inflow arrangements. To complete the study, the calculation results for a single-stage axial steam turbine design are also presented. In contrast to the axial flow design with a relatively low unit efficiency, higher efficiency was achieved for single-inflow turbines. Highest efficiency was calculated for a double-inflow radial design, which opens new perspectives for energy generation from OC-OTEC systems.

Copyright © 1990 by The American Society of Mechanical Engineers
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