Direct air capture unit and method of providing a direct air capture unit
The direct air capture unit addresses the inefficiencies of DAC systems by using captured condensate for indirect evaporative cooling, reducing energy consumption and enhancing system efficiency and sustainability.
WO2026153635A1PCT designated stage Publication Date: 2026-07-23ROBERT BOSCH GMBH
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2025-01-15
- Publication Date
- 2026-07-23
AI Technical Summary
Technical Problem
Conventional direct air capture (DAC) systems are energy-intensive and costly due to the underutilization of by-products such as captured humidity and CO2, which are considered waste, leading to inefficiencies in energy consumption.
Method used
A direct air capture unit that utilizes captured condensate, in the form of moisture or water vapor, to enhance system efficiency by integrating it into an indirect evaporative cooling system within HVAC systems, leveraging the condensate to cool conditioned air through indirect evaporative cooling.
Benefits of technology
Reduces energy consumption and enhances the overall efficiency of DAC systems by utilizing captured condensate for cooling, thereby contributing to a more sustainable and cost-effective solution.
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Smart Images
Figure EP2025050883_23072026_PF_FP_ABST
Abstract
A direct air capture unit for use with a heating, ventilation and / or air conditioning (HVAC) system, the direct air capture unit comprising: a direct air capture sorbent module configured to receive ambient air and to sorb condensate and carbon dioxide from the ambient air to obtain conditioned air; a channel arranged in fluid connection with the direct air capture sorbent module, the channel comprises a first chamber and a second chamber; wherein the first chamber is configured to receive and direct the conditioned air into the HVAC system, and the second chamber is arranged to receive return air from the HVAC system and the condensate from the direct air capture sorbent module, and wherein the first chamber and the second chamber are arranged such that received condensate in the second chamber is used to cool the conditioned air in the first chamber via indirect evaporative cooling.
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