Buoyancy Vortex Station Using Saturated Air for Waste Heat Power

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Solution Overview

Problem

Existing systems for converting waste heat into electricity using atmospheric buoyancy vortices are inefficient due to low power densities at low temperatures, requiring large and expensive equipment, and existing vortex engines need costly vertical structures to create vortices.

Innovation Solution

A vortex station that uses a ground platform, vanes to direct air flow, and a wind turbine with a supply of saturated water vapor to create and stabilize a tornado-like convective vortex, concentrating buoyancy power at ground level without the need for tall structures, utilizing the latent heat from condensation to enhance vortex stability and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If waste heat is used for electrical power generation at low temperatures, then energy conversion is achieved, but power density is low requiring large and expensive equipment

Engineering Contradiction:
Improvewaste heat conversion efficiencyVSAvoidpower density
Core Design Contradiction:
Use of energy by moving objectVSPower

Solution Approach 1:

The invention changes the thermodynamic parameters by using saturated air instead of ordinary air as the working fluid. This parameter change enables the system to achieve higher power density at low temperatures by utilizing the latent heat of condensation, which significantly enhances the energy conversion efficiency from waste heat without requiring large equipment

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention exploits the phase transition of water vapor in the saturated air. As the saturated air rises and cools, the water vapor condenses, releasing latent heat that provides additional energy to maintain the convective vortex. This phase transition mechanism enables efficient waste heat conversion at low temperatures with high power density

Inventive Principle:
Principle #36Phase transitions

2Reliability

If tall structures and large turbines are used to create atmospheric buoyancy vortex, then vortex generation is achieved, but capital costs increase

Engineering Contradiction:
Improvevortex generation capabilityVSAvoidcapital cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention makes the system self-service by using the waste heat itself to generate the saturated air that creates the buoyancy vortex. The waste heat from industrial processes is used to evaporate water and create saturated air, which then rises naturally due to buoyancy, forming the vortex without requiring external energy input or tall structures

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention replaces the mechanical system of tall chimney structures with a thermal system. Instead of using mechanical force or gravity-driven tall structures to create upward flow, the system uses thermal buoyancy of saturated air to naturally generate the vertical convective motion needed for vortex formation, significantly reducing capital costs

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Stability of the object's composition

If unsaturated air is used in the vortex, then the vortex dissipates due to turbulent mixing, but adding saturation equipment increases system complexity

Engineering Contradiction:
Improvevortex stabilityVSAvoidsaturation system complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The invention merges the waste heat utilization function with the air saturation function. The same waste heat that drives the buoyancy vortex is also used to evaporate water and saturate the air. This merging of functions eliminates the need for separate saturation equipment, maintaining vortex stability while avoiding additional system complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system self-saturates the air using its own waste heat output. The waste heat naturally evaporates water from the ground or water sources within the vortex station, creating saturated air without requiring external saturation equipment. This self-service mechanism maintains vortex stability while keeping the system simple

Inventive Principle:
Principle #25Self-service

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

The vortex station achieves a higher aspect ratio and stability for the vortex, suppressing turbulent mixing and making energy available as high wind speeds at ground level, allowing for efficient conversion of waste heat into electricity with an overall efficiency of approximately 5%, reducing capital and operating costs.

Implementation Method 1

a plurality of vanes to direct air into a vortex station and about the vortex station in a swirling manner (that is to say, with horizontal circulation)

Methodology Applied
Scientific EffectFluid flow direction:

Implementation Method 2

the movement of the air in the vortex station is such that an atmospheric buoyancy vortex is created in the centre of the vortex station

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 3

a supply of water to the vortex station at or near the centre of the vortex station such that the air is of a saturated condition or an at least partially saturated condition

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 4

utilizing the latent heat from condensation to enhance vortex stability and efficiency

Methodology Applied
Scientific EffectLatent heat: Latent Heat

Implementation Method 5

at least one wind turbine disposed near the centre of said vortex station, in a path of concentrated air flow

Methodology Applied
Scientific EffectWind power conversion: Wind Power

Data Source

PatentUS11739731B2Vortex station
Publication Date: 2023.08.29 AUCKLAND UNISERVICES LTD
  • US11739731B2 patent drawing
  • US11739731B2 patent drawing
  • US11739731B2 patent drawing

AI summary

This invention relates to a vortex station and method for producing a vortex similar to one of a group consisting of dust-devils and waterspouts. The apparatus comprises a ground platform forming a base for the vortex station, a plurality of vanes to direct an air flow into a vortex station and about the vortex station in a substantially swirling manner, at least one wind turbine disposed near the centre of said vortex station, in a path of a concentrated air flow, wherein the movement of the air in the vortex station is such that an atmospheric buoyancy vortex is created in the centre of the vortex station, a supply of a working fluid (e.g. water) to the vortex station at or near the centre of the vortex station such that the air is of a saturated condition or an at least partially saturated condition with the working fluid (e.g. water), the working fluid (e.g. water) supplied at a sufficient quantity or amount so as to assist with maintaining buoyancy and stability of a vortex created.