Surface wettability modification in a liquid desiccant-based heating, ventilation, air-conditioning and refrigeration system
The integration of surfactants and a sensing-control system addresses wetting issues in liquid desiccant HVAC systems, improving dehumidification efficiency and preventing crystallization, ensuring effective and cost-effective operation.
Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- CARRIER CORP
- Filing Date
- 2025-11-14
- Publication Date
- 2026-05-28
AI Technical Summary
Traditional liquid desiccant-based HVAC systems face challenges in achieving complete wetting of contact media, leading to inefficient dehumidification due to high surface tension of desiccants, increased power demand, and potential LD carryover, while heat exchangers suffer from LD crystallization causing corrosion and reduced efficiency.
A system incorporating surfactants to modify surface wettability of desiccants and a sensing-control architecture for precise dosing, along with a heat exchanger protection mechanism to prevent LD crystallization and maintain efficient operation.
Ensures continuous and complete wetting of contact media, enhances dehumidification efficiency, reduces energy consumption, and prevents LD crystallization, thereby maintaining system integrity and reducing maintenance costs.
Smart Images
Figure US20260146750A1-D00000_ABST