Conformable Tank Filling System with Venturi Mixing

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Solution Overview

Problem

Conventional compressed gas tanks experience heating issues during filling due to the heat of compression and Joule-Thompson effect, leading to longer filling times and the need for gas pre-cooling, which increases complexity and costs for fueling stations.

Innovation Solution

The use of novel conformable tanks with increased surface area for rapid heat dissipation and higher flow velocity during filling, allowing for faster fill performance without pre-cooling, and alternating end filling to manage temperature extremes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional tanks are used for filling, then the tank structure is simple, but heating issues occur due to heat of compression and Joule-Thompson effect, leading to longer filling times and requiring pre-cooling

Engineering Contradiction:
Improvefilling speedVSAvoidtemperature control during filling
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The tank is divided into multiple chambers (e.g., 112 chambers) that can be filled independently or in parallel. This segmentation allows for better temperature management by distributing the compression heat across multiple smaller volumes, enabling faster overall filling without excessive temperature rise in any single chamber.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from conventional single-volume tanks to multi-chamber configurations, adding a dimensional aspect to the filling process. This allows simultaneous filling of multiple chambers from different locations, effectively increasing filling speed while managing temperature through distributed heat generation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Temperature

If gas pre-cooling is implemented, then temperature control during filling is improved, but the complexity and costs for fueling stations increase

Engineering Contradiction:
Improvetemperature control during fillingVSAvoidfueling station complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The multi-chamber tank design enables self-regulating temperature management during filling. The distributed chamber structure naturally dissipates compression heat across multiple volumes, and the system can autonomously manage filling sequences to prevent excessive temperature rise without requiring external pre-cooling infrastructure.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent changes the physical parameters of the storage system by using multiple small chambers instead of one large chamber. This parameter change fundamentally alters the thermal behavior during filling, allowing the system to operate without pre-cooling while maintaining temperature control through the inherent thermal characteristics of the multi-chamber design.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If conventional tanks are used, then the tank design is straightforward, but heat dissipation is insufficient leading to longer filling times

Engineering Contradiction:
Improvefilling speedVSAvoidheat dissipation efficiency
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

By segmenting the tank into multiple chambers, the surface area to volume ratio increases significantly. This segmentation enhances heat dissipation efficiency as each chamber has its own surface area for heat transfer, allowing compression heat to be dissipated more effectively during the filling process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent fundamentally changes the geometric parameters of the storage system by using multiple small chambers instead of one large chamber. This parameter change increases the total surface area available for heat dissipation relative to the total volume, directly improving heat transfer efficiency and enabling faster filling rates.

Inventive Principle:
Principle #35Parameter changes

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

Conformable tanks achieve faster filling speeds and reduced temperature peaks, minimizing the need for pre-cooling and lowering operational costs while maintaining safety and efficiency.

Implementation Method 1

novel conformable tanks with increased surface area for rapid heat dissipation

Methodology Applied
Scientific EffectHeat dissipation: Convection

Implementation Method 2

heating issues during filling due to the heat of compression and Joule-Thompson effect

Methodology Applied
Scientific EffectJoule-Thompson effect: Joule-Thomson Effect

Data Source

PatentUS10845005B2Tank filling system and method
Publication Date: 2020.11.24 OTHER LAB LLC
  • US10845005B2 patent drawing
  • US10845005B2 patent drawing
  • US10845005B2 patent drawing

AI summary

A Venturi filling system having a first filling coupler configured to be coupled to a first set of fittings disposed at a first tank end of a tank; a second filling coupler configured to be coupled to a second set of fittings disposed at a second tank end of the tank; and a Venturi assembly that includes: a Venturi mixing chamber, the Venturi mixing chamber communicating with the first filling coupler; a Venturi nozzle configured to introduce a first flow of fluid from a fluid source to the Venturi mixing chamber of the Venturi assembly; and an suction inlet communicating with the second filling coupler and coupled with the Venturi chamber and configured to receive a second flow of fluid originates from the second filling coupler such that the second flow of fluid flows into the Venturi chamber and mixes with the first fluid flow within the Venturi mixing chamber.