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Open-cycle OTEC system performance analysis. [Claude cycle]

Description: An algorithm developed to calculate the performance of Claude-Cycle ocean thermal energy conversion (OTEC) systems is described. The algorithm treats each component of the system separately and then interfaces them to form a complete system, allowing a component to be changed without changing the rest of the algorithm. Two components that are subject to change are the evaporator and condenser. For this study we developed mathematical models of a channel-flow evaporator and both a horizontal jet… more
Date: October 1, 1980
Creator: Lewandowski, A.A.; Olson, D.A. & Johnson, D.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ocean thermal energy conversion (OTEC) power system development. Preliminary design report, Appendices, Part 1 (Final)

Description: The objective of this project is the development of a preliminary design for a full-sized, closed cycle, ammonia power system module for the 100 MWe OTEC demonstration plant. In turn, this demonstration plant is to demonstrate, by 1984, the operation and performance of an Ocean Thermal Power Plant having sufficiently advanced heat exchanger design to project economic viability for commercial utilization in the late 1980's and beyond. Included in this power system development are the preliminary… more
Date: December 4, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stress-corrosion cracking of steels in ammonia with consideration given to OTEC design: a survey

Description: Carbon steel, alloy steel, and high-strength, quenched and tempered steel, when under applied or residual stress and especially when cold formed and/or welded without subsequent thermal stress relief, are subject to failure by stress-corrosion cracking (SCC) in air-contaminated dry ammonia. Water as well as hydrazine when present in small amounts have been shown to be effective inhibitors in an all steel system. Galvanic corrosion between dissimilar metals and/or accelerated failure by SCC of s… more
Date: March 1, 1980
Creator: Teel, R.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ocean Thermal Energy Conversion power system development. Phase I: preliminary design. Final report

Description: Westinghouse has completed the Preliminary Desigh Phase for the Power System Development of the Ocean Thermal Energy Conversion (OTEC) Demonstration Plant project. This study included the development of a preliminary design for a Modular Application scaled power system (10MWe) and Heat Exchanger Test Articles, both based on the concept developed in the Conceptual Design Phase. The results of this study were used to improve the baseline design of the 50MWe module for the Commercial Size Power Sy… more
Date: December 4, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ocean Thermal Energy Conversion power system development. Phase I. Final report

Description: This report covers the conceptual and preliminary design of closed-cycle, ammonia, ocean thermal energy conversion power plants by Westinghouse Electric Corporation. Preliminary designs for evaporator and condenser test articles (0.13 MWe size) and a 10 MWe modular experiment power system are described. Conceptual designs for 50 MWe power systems, and 100 MWe power plants are also descirbed. Design and cost algorithms were developed, and an optimized power system design at the 50 MWe size was c… more
Date: December 4, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternate cycles applied to ocean thermal energy conversion

Description: Four open cycle OTEC concepts are described. These are: (1) single, vertical-axis turbine; (2) multiple, horizontal-axis turbines; (3) foam lift/hydraulic turbine; and (4) mist lift/hydraulic turbine. A preliminary assessment of achievable performance is made in addition to a description of the subsystem performance objectives which would support the achievement of the full potential inherent in these concepts. The results and conclusions of the paper include a description of the research objec… more
Date: February 1, 1979
Creator: Shelpuk, B. & Lewandowski, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ocean energy conversion systems annual research report

Description: Alternative power cycle concepts to the closed-cycle Rankine are evaluated and those that show potential for delivering power in a cost-effective and environmentally acceptable fashion are explored. Concepts are classified according to the ocean energy resource: thermal, waves, currents, and salinity gradient. Research projects have been funded and reported in each of these areas. The lift of seawater entrained in a vertical steam flow can provide potential energy for a conventional hydraulic t… more
Date: March 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ocean thermal energy conversion power system development-I. Preliminary design report. Volume 3. Appendixes D, E, and F. Phase I. Final report

Description: The conceptual design of a 40 to 50 MW closed cycle ammonia OTEC commercial plant, the preliminary design of a 10 MW OTEC module analogous to the 50 MW module, and the preliminary design of heat exchanger test articles (evaporator and condenser) representative of the 50 MW heat exchangers for testing in OTEC-1 are presented. This volume includes the appendices: D) system equipment (hardware breakdown structure; 10-MW hardware listing; list of support and maintenance equipment, tools and spare p… more
Date: December 18, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ocean thermal energy conversion power system development-I. Volume 4. Appendix G. Preliminary design report

Description: The conceptual design of a 40 to 50 MW closed cycle ammonia OTEC commercial plant, the preliminary design of a 10 MW OTEC module analogous to the 50 MW module, and the preliminary design of heat exchanger test articles (evaporator and condenser) representative of the 50 MW heat exchangers for testing in OTEC-1 are presented. This volume of the report presents Appendix G: ammonia cycle, auxiliaries and ancillaries. Design descriptions are given (for the 50 MW commercial plant and the 10 MW modul… more
Date: December 18, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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