Heat reclamation and temperature control for submersible vehicles that utilize fuel cells

A fuel cell and vehicle technology, applied in the direction of fuel cell engines, fuel cell heat exchange, fuel cells, etc., can solve the problem of reducing power and achieve the effect of enhancing power generation capacity

Active Publication Date: 2016-01-06
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cathode blower utilizes significant additional power from the SOFC for cooling activities, which reduces the power available for the UUV

Method used

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  • Heat reclamation and temperature control for submersible vehicles that utilize fuel cells
  • Heat reclamation and temperature control for submersible vehicles that utilize fuel cells
  • Heat reclamation and temperature control for submersible vehicles that utilize fuel cells

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Embodiment Construction

[0015] The drawings and the following description illustrate specific exemplary embodiments. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that embody the principles within the scope of and embody the embodiments, although not explicitly described or shown herein. Furthermore, any examples described herein are intended to aid in the understanding of the principles of the embodiments and are to be construed as not being limited to such specifically stated examples and conditions. Accordingly, the inventive concept is not limited to the specific embodiments or examples described below, but by the claims and their equivalents.

[0016] figure 1 An underwater vehicle 100 utilizing a Stirling engine for heat recovery and temperature control of an SOFC is shown in an exemplary embodiment. In this embodiment, vehicle 100 is described as an unmanned submersible vehicle (UUV), but in other embodiments, vehicle 100 may be any typ...

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Abstract

Embodiments described herein provide for heat reclamation and temperature control of a SOFC for a submersible vehicle. The vehicle includes a SOFC, a hot box that surrounds the SOFC, a cooling loop, and a Stirling engine. The cooling loop has a heat exchanger and a coolant pump. The heat exchanger thermally couples the cooling loop to the water. The Stirling engine has a first end thermally coupled to an interior of the hot box and a second end thermally coupled to the cooling loop. The coolant pump modifies a rate of heat removal from the second end of the Stirling engine based on a pump control signal. A thermal management controller monitors a temperature of a cathode outlet of the SOFC, and modifies the pump control signal to maintain the temperature of the cathode outlet within a temperature range.

Description

technical field [0001] The present disclosure relates to the field of underwater vehicles, and more particularly, to underwater vehicles utilizing solid oxide fuel cells (SOFCs) to generate electricity. Background technique [0002] Underwater vehicles, such as unmanned submersible vehicles (UUVs), sometimes utilize fuel cells to generate electricity. One example of a fuel cell is a solid oxide fuel cell (SOFC). SOFCs operate by electrochemically converting fuel and oxidant into electricity and heat. Typical SOFCs operate between 650-850 degrees Celsius, and the conversion process is exothermic. This creates a lot of waste heat, which is problematic in UUVs. Typically, waste heat is removed from the UUV using a cooling loop that transfers the heat to the water surrounding the UUV. [0003] For temperature control of the SOFC itself, a cathode blower is utilized to both provide oxygen to the cathode of the SOFC and provide cooling for the SOFC. As the temperature of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/10H01M8/04H01M8/04007
CPCH01M8/04H01M8/04007H01M8/04067H01M8/10B63G8/36F02G1/043H01M8/04014H01M8/0432H01M8/04701H01M8/04716B63G2008/004B63H2021/003H01M2250/20H01M2250/407H01M8/0435H01M8/04373H01M8/0618H01M2008/1293Y02E60/50Y02T90/40
Inventor 迈克尔·J·马里奇乔舒亚·M·默梅尔斯坦迈克尔·韦伯
Owner THE BOEING CO
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