Electric Heating Elements in Gas Turbine Combustion Chambers

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Solution Overview

Problem

Current gas turbine and jet engines rely heavily on fossil fuels, contributing to global warming and environmental damage, and existing technologies lack efficient alternatives for reducing fuel consumption while maintaining power generation and propulsion efficiency.

Innovation Solution

Incorporation of electric heating elements, such as molybdenum disilicide and silicon carbide, within the combustion chambers of gas turbine and jet engines to supplement or replace traditional fuel-based heating, allowing for more efficient electricity and power production using standard or reduced fuel levels, or even fuel-free operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If fossil fuels are used to generate power in gas turbine engines, then power generation efficiency is maintained, but environmental harm increases due to global warming and pollution

Engineering Contradiction:
Improveenvironmental harmVSAvoidpower generation efficiency
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The patent combines traditional fuel combustion with electric heating elements in the combustion chamber, creating a hybrid system that merges chemical energy conversion with electrical energy conversion to achieve both environmental benefits and maintained power generation efficiency

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the energy input parameter from exclusively chemical (fuel) to a combination of electrical and chemical energy, allowing the system to reduce fossil fuel consumption while maintaining the thermal energy output needed for power generation

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If fossil fuel consumption is reduced to minimize environmental impact, then environmental harm decreases, but power generation efficiency may deteriorate

Engineering Contradiction:
Improveenvironmental harmVSAvoidpower generation efficiency
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The electric heating elements serve as an intermediary energy source that can supplement or replace fuel combustion, providing thermal energy without the environmental harms of fossil fuels while maintaining the temperature levels required for efficient power generation

Inventive Principle:
Principle #24Intermediary (Mediator)

3Quantity of substance

If electric heating elements are added to the combustion chamber, then fuel consumption is reduced, but device complexity increases

Engineering Contradiction:
Improvefuel consumptionVSAvoidsystem complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The electric heating elements are designed to serve multiple functions: they can operate independently as an electric heating source, work in conjunction with fuel combustion as a supplement, or be controlled to replace fuel entirely, providing operational flexibility that justifies the added complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 use of electric heating elements enhances power generation efficiency, reduces environmental impact by minimizing fossil fuel usage, and provides a more sustainable solution for both electricity production and propulsion systems.

Implementation Method 1

one or more electric heating elements within the combustion chamber, wherein the one or more electric heating elements are configured to heat compressed air, a mixture of compressed air and fuel, combustion products of a mixture of compressed air and fuel

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS11572836B2Electric heating systems and methods for gas turbine engines and jet engines
Publication Date: 2023.02.07 BURKETT BOB
  • US11572836B2 patent drawing
  • US11572836B2 patent drawing
  • US11572836B2 patent drawing

AI summary

Systems and methods for gas turbine or jet engines may include, among other things, one or more electric heating elements located within a combustion chamber of a gas turbine engine, a combustion chamber of a jet engine, or an afterburner of a jet engine. A combustion chamber and/or an afterburner may be configured to generate heated gas by using the one or more electric heating elements to heat gases within the combustion chamber and/or afterburner. A combustion chamber and/or an afterburner may be configured to generate an exhaust output based on the heated gas. The exhaust output may drive a turbine which generates electricity or mechanical energy. Thrust from the exhaust output from a jet engine may propel a vehicle.