Industrial ocean thermal energy conversion processes

A technology of hot water and working fluid, applied in the field of OTEC power stations, can solve problems such as the impact of marine environment, impact of fish schools and coral reef systems

Inactive Publication Date: 2013-06-12
THE ABELL FOUND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such discharges may have positive or negative impacts on the marine environment near OTEC power plants, possibly impacting fish stocks and coral reef systems downstream of OTEC discharges

Method used

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  • Industrial ocean thermal energy conversion processes
  • Industrial ocean thermal energy conversion processes
  • Industrial ocean thermal energy conversion processes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0096] Aspects of the present invention provide an integrated multi-stage OTEC power plant that utilizes the temperature difference between surface water and deep seawater in tropical and subtropical regions to generate electricity. These aspects eliminate traditional piping routes for seawater by using the structure of the offshore vessel or platform as the conduit or flow channel. Alternatively, the hot and cold seawater pipeline routes may use pipes or tubes of sufficient size and strength to provide vertical or other structural support for the vessel or platform. These integrated seawater pipe sections or channels serve as structural members of the vessel, reducing the need for additional steel. As part of the integrated seawater channel, the multi-stage cabinet heat exchanger provides multi-stage evaporation of the working fluid without external water nozzles or piping connections. The integrated multi-stage OTEC plant allows hot and cold seawater to flow in their natura...

Embodiment 2

[0117] The offshore OTEC column platform includes four independent power modules, and each power module generates about 25MW of net power under rated design conditions. Each power module includes four independent power cycles or cascaded thermodynamic stages operating at different pressure and temperature levels and extracting heat from seawater in four different stages . Four different stages operate in series. The approximate pressure and temperature levels of the four stages under rated design conditions (full load - summer conditions) are as follows:

[0118]

[0119] The working fluid is heated to boil in multiple evaporators by extracting heat from hot sea water (WSW). Saturated steam is separated in the steam separator and directed to the ammonia turbine through STD schedule seamless carbon steel pipes. Liquid condensed in the condenser is pumped back to the evaporator by two 100% motor driven constant speed feed pumps. Cycle 1 and cycle 4 turbines drive a common...

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Abstract

A combined OTEC and steam system having an OTEC power generation system including a multistage condensing system in fluid communication with a cold water system and a steam system comprising a steam condenser, wherein the steam condenser is in fluid communication with the cold water system.

Description

[0001] related application [0002] This application claims priority to US Provisional Application Serial No. 61 / 364,159, filed July 14, 2010, which is hereby incorporated in its entirety. technical field [0003] The present invention relates to ocean thermal energy conversion ("OTEC") processes, including floating, minimal heave platform, multi-stage heat engine OTEC power plants, and also to combinations with other industrial operations such as other power generation plants or industrial process facilities OTEC power station. Background technique [0004] Global energy consumption and demand has been growing at an exponential rate. Demand in this area is expected to continue to rise, especially in developing countries in Asia and Latin America. At the same time, the decline of traditional energy resources, namely fossil fuels, is accelerating and the cost of extracting them continues to rise. Environmental and regulatory concerns are exacerbating the problem. [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/05F22B33/18
CPCF01K13/00F01K25/10F03G7/05Y02E10/30F22B33/18
Inventor L·J·夏皮罗B·R·科尔J·M·罗斯R·克鲁尔
Owner THE ABELL FOUND INC
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