Hydrogen Storage Canister Capacity Measurement via Cycle and Temperature Data
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Solution Overview
Problem
Current methods for measuring the remaining hydrogen capacity of hydrogen storage canisters are inefficient and imprecise, relying on pressure, temperature, or weight differences, which are not effective in practical applications due to variations in system weight and hydrogen purity, and do not account for operation cycles and pressure changes.
Innovation Solution
A method that calculates the available remaining hydrogen capacity using a hydrogen capacity deterioration curve, operation temperature, and number of cycles, eliminating the need for precise weight measurements and accounting for hydrogen purity and pressure variations, employing equations to determine the remaining capacity based on initial and used capacities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If weight difference measurement is used to determine hydrogen capacity, then measurement precision is improved, but device complexity and ease of operation deteriorate due to system weight variations and installation complexity
Solution Approach 1:
The patent replaces the mechanical weighing system with a sensor-based detection system that measures physical parameters (temperature, pressure, flow rate) to calculate hydrogen capacity. This substitution eliminates the need for precision weighing instruments and their associated complexity while achieving accurate measurement through parameter-based calculation.
Solution Approach 2:
The patent introduces sensors as intermediary devices that indirectly measure hydrogen capacity by detecting related physical parameters (temperature, pressure, flow rate) and using these as proxies to calculate the actual hydrogen capacity, avoiding direct weight measurement complexity.
2Ease of operation
If pressure measurement is used to determine hydrogen capacity, then ease of operation is improved, but measurement precision deteriorates due to flat characteristic curves
Solution Approach 1:
The patent changes from measuring a single parameter (pressure) to measuring multiple parameters simultaneously (temperature, pressure, flow rate) and using their combined variation to calculate hydrogen capacity. This multi-parameter approach overcomes the flatness issue of single-parameter pressure curves by utilizing the combined information from multiple changing parameters.
Solution Approach 2:
The patent transitions from one-dimensional pressure measurement to multi-dimensional measurement by incorporating temperature and flow rate parameters, creating a multi-dimensional measurement space that provides more accurate hydrogen capacity determination despite the flat pressure-capacity relationship.
3Ease of operation
If temperature measurement is used to determine hydrogen capacity, then ease of operation is improved, but measurement precision deteriorates due to pressure-dependent capacity changes
Solution Approach 1:
The patent changes from single-parameter temperature measurement to multi-parameter measurement by simultaneously measuring temperature, pressure, and flow rate. This allows the system to account for pressure-dependent capacity changes while maintaining the operational simplicity of temperature-based measurement through combined parameter analysis.
Data Source
AI summary
Disclosed is a method for measuring the available remaining hydrogen capacity of a non-replaced hydrogen storage canister. After the original hydrogen capacity of the hydrogen storage canister is read, the used hydrogen capacity of the hydrogen storage canister is read and remaining hydrogen capacity formula is employed to determine the available remaining hydrogen capacity of the hydrogen storage canister. For a fully charged or newly-installed hydrogen storage canister, the process includes reading the number of cycles of operation of the hydrogen storage canister, reading the original hydrogen capacity of the hydrogen storage canister, reading the used hydrogen capacity of the hydrogen storage canister, and then employing the remaining hydrogen capacity formula to determine the available remaining hydrogen capacity of the hydrogen storage canister.