Parameter

4.6.3.1 gas turbine water injection from h2 fuel cells

This emerging technology utilizes the water byproduct from hydrogen fuel cells to cool and humidify air entering a gas turbine, improving efficiency and reducing emissions. The system involves a hydrogen fuel cell generating electricity and producing pure water vapor, which is then recovered, treated, and injected into the gas turbine, cooling and humidifying the air to generate additional power. This concept enables water self-sufficiency in hydrogen aviation, particularly at cruise, by leveraging the water byproduct to enhance gas turbine performance.

Hierarchy

4 technological themes

4.1 active aircraft control

4.2 data transfer technologies

4.3 energy carriers

4.4 net zero technologies

4.5 operational technologies

4.6 aircraft propulsion

4.6.1 propulsor integration on airframe

4.6.2 converting shaft power to thrust

4.6.3 converting fuel to shaft power

4.6.3.1 gas turbine water injection from h2 fuel cells

4.6.3.2 exhaust heat energy recovery

4.6.3.3 new combustion for premixed (clean) fuels

4.6.3.4 waste heat recovery for lh2 to gh2 (preconditioning)

4.6.3.5 hydrogen fuel cells

4.6.3.6 nuclear based propulsion

4.6.4 non-combustion based engine integration

4.6.5 other propulsion technologies

4.7 aircraft structures

Scenario relevance

Number of parameter occurrence per scenario.

Input

Output

1

3

Optimising together

N/A

Stripping down

N/A

Tech for you

N/A

Mad max

Milestone Timehorizon

PESTEL categories

Incoming dependencies Outgoing dependencies

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Current

Short term

Medium term

Long term

Governance & Operations

A unified global regulatory, legal, and data framework for the net-zero transition and seamless air travel.

2

Binding Global Mandate

1

Common Data Standards

2

Innovation Sandboxes

3

Collaborative Governance Blueprint

1

Ratifying The Treaty

2

Demonstrating Unified ATM

1

Establishing The Enforcer

1

Mutual Certification

2

Implementing Unified ATM

1

Collaborative Mandate Management

1

Multi-Modal Integration

2

Adaptive Governance

Environment & Economy

A self-sustaining, circular aviation market supported by established economic and industrial models.

2

Common Emissions Standard

3

Secure Initial Funding

1

Validate Scaling Paths

2

Mandate Circular Design

2

Deploy Hub Infrastructure

1

Operationalize Incentives

1

Launch Circular Supply Chains

1

Internalize Emission Costs

5

Complete Fleet Renewal

1

Secure Energy Supply

2

Achieve Full Circularity

2

Confirm Economic Viability

Technology & R&D

A fully developed, certified, and deployed ecosystem of net-zero technologies, from new propulsion to full autonomy.

3

Ground-Test Propulsion

1

Digital Twin Architecture

1

Validate Foundational AI

2

Pilot Efficiency Concepts

1

Flight-Prove Propulsion

1

Deploy Gen 1.0 Digital Twin

2

Certify Reduced Crew

3

Certify All Aircraft

1

Implement Autonomous Cargo

1

Implement Autonomous ATM

2

Optimize With Digital Twin

2

Launch Gen 2.0 R&D

Society & Human Capital

A fair, equitable, and human-centric transition that ensures public trust and a fully integrated future workforce.

0

Analyze Skills Gap

0

Build Social License

0

Ratify Just Transition

2

Launch Reskilling Programs

0

Define Equity Standards

2

Demonstrate Just Transition

1

Ensure Remote Access

1

Build Trust In Autonomy

1

Permanent Transition Monitoring

2

Verify Universal Access

2

Achieve Full Public Trust

1

Integrate New Workforce

Little to many relations with other Milestones