Rear Door Heat Exchanger
Definition
A Rear Door Heat Exchanger (RDHx) is a rack-level cooling technology that removes heat from server exhaust air by using a heat exchanger installed on the rear door of a server rack.
The system captures heat generated by IT equipment before it enters the data center environment, helping improve cooling efficiency in high-density computing deployments.
Why It Matters
As rack power density increases, especially in AI and GPU computing environments, traditional room-based cooling methods may struggle to manage localized heat loads.
Rear Door Heat Exchangers provide:
- Targeted heat removal
- Improved rack cooling capacity
- Reduced hot spots
- Support for higher-density racks
Key Technologies
A Rear Door Heat Exchanger typically includes:
Heat Exchange Coil
Transfers heat from server exhaust air to a cooling medium.
Liquid Cooling Loop
Uses chilled water or coolant circulation to remove heat.
Rack-Level Integration
Designed to work directly with high-density IT racks.
Applications
RDHx solutions are used in:
- High-density server environments
- AI computing facilities
- HPC systems
- Enterprise data centers
- Colocation facilities
Related Terms
Related ATTOM Solutions
ATTOM provides advanced thermal management solutions designed to support increasing rack densities and evolving AI infrastructure requirements.
