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Volume 3

Geothermal Direct Air Capture

Engineering Low Grade Thermal Integration for Carbon Removal

The secret to scalable carbon removal isn't in the air—it's beneath your feet.

Strategic Objectives

• Master the engineering of direct-coupling geothermal heat to DAC units.

• Optimize low-grade thermal energy for maximum sorbent efficiency.

• Reduce operational costs by bypassing traditional electricity-to-heat conversion.

• Design resilient thermal cycling systems for continuous carbon sequestration.

The Core Challenge

Direct Air Capture is energy-intensive, and the high thermal cost of sorbent regeneration remains the biggest barrier to global decarbonization.

01

The Carbon Balance

02

Earth’s Thermal Reservoir

03

Thermodynamics of Capture

04

Solid Sorbent Chemistry

05

The Regeneration Cycle

06

Low-Grade Heat Utilization

07

Geothermal Heat Exchangers

08

Subsurface Engineering

09

Working Fluids

10

Thermal Cycling Dynamics

11

Geothermal Gradient Optimization

12

Direct Coupling Strategies

13

Heat Pumps in DAC

14

Thermal Storage Solutions

15

Fluid Mechanics of Geothermal Brines

16

System Integration and Control

17

Carbon Sequestration Pathways

18

Economic Modeling

19

Environmental Impact Assessment

20

Regulatory Frameworks

21

The Future of Geo-DAC

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