Subterranean Fuel Cell Heater with Independent Section Control
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Solution Overview
Problem
Existing subterranean heaters lack the ability to independently monitor and control the thermal output of individual sections, which is necessary to tailor heat distribution according to varying geological conditions in oil-containing formations.
Innovation Solution
A plurality of heaters, each equipped with a fuel cell stack assembly connected to an electronic controller, allowing independent monitoring and control of electric current, enabling tailored thermal output for each section of the heater.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common central electrical conductor and common return cable are used to conduct electricity from all fuel cells, then the electrical connection arrangement is simplified, but the ability to monitor or control individual sections of the heater is lost
Solution Approach 1:
The patent divides the heater into multiple independently controllable sections, with each section having its own electrical connection path to the controller. This segmentation allows individual monitoring and control of each section while maintaining overall system functionality.
Solution Approach 2:
The patent introduces an additional electrical connection dimension by providing both a common return cable and individual section conductors. This multi-dimensional electrical architecture enables simultaneous simplified power collection and detailed section monitoring/control.
2Productivity
If the thermal output of individual sections is controlled to match varying geology, then heating efficiency is improved, but the system complexity increases
Solution Approach 1:
The patent implements local quality control by allowing each heater section to operate with independently adjusted thermal output parameters. This enables tailoring the heating characteristics of each section to match the specific geological conditions at that location, improving overall heating efficiency.
Solution Approach 2:
The patent introduces dynamic control capability where the thermal output of each section can be adjusted in real-time based on feedback from sensors and changing geological conditions. This dynamic adjustment optimizes heating efficiency throughout the heater's operational life.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for precise control of heat distribution along the borehole, optimizing energy use and adapting to varying geological conditions, thereby enhancing the efficiency of oil extraction and formation heating.
Implementation Method 1
a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent
Implementation Method 2
a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent
Data Source
AI summary
A plurality of heaters is provided where each of the plurality of heaters includes a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. Each of the plurality of fuel cells also includes a conductor electrically connecting the fuel cell stack assembly to an electronic controller which monitors and controls electric current produced by the fuel cell stack assembly. The conductor of one of the plurality of heaters allows electric current produced by the fuel cell stack assembly of the one of the plurality of heaters to be monitored and controlled by the electronic controller independently of the fuel cell stack assembly of at least another one of the plurality of heaters.