Darrell Sandlin
CEM
Carolina Heat Pipe | President
Speaker
Track F: Building Performance
Session F1: HVAC, Heat Pumps, and Thermal Energy Networks
September 17, 2025 | 2:00 pm - 2:30 pm
Heat Pipes Provide Decarbonization in HVAC Systems
The presentation provides overview of heat pipes utilized in the HVAC industry. Passively transferring heat energy from a higher temperature environment to a lower temperature heat pipes provide for decarbonization.
The technology affords design engineers ability to efficiently improve dehumidification performance of air handlers by passively transferring sensible heat around the dehumidification coil. The sensible heat recovered is then discharged into the cold saturated air exiting the dehumidification coil thereby lowering the relative humidity. This passive “shift in the sensible heat ratio” across the dehumidification coil provides a reduction in load and energy consumption at both cooling and heating systems and thereby provides for Decarbonization.
The heat pipe is one of several technologies that provide this “Latent Enhancement” and are frequently incorporated into Dedicated Outdoor Air Handling systems.
Heat pipes will also provide a safe means of duct-to-duct energy recovery between exhaust and make up air streams.
Speaker Bio
Mr. Sandlin is the President of Carolina Heat Pipe. He has 40 years of Engineering Experience including roles as a Process Engineer, Manufacturing Facility Manger, Construction Manager, Global Energy Manager and Consulting Engineer.
He is a 20 year member with the Association of Energy Engineers, is a member of the Atlanta, Georgia chapter and a long time Certified Energy Manager.
Darrell is an active member with ASHRAE for 24 years and a member of the Greenville, SC chapter. He is currently a voting member and the Programs Chairman for ASHRAE Technical Committee 8.10 – “Mechanical and Desiccant Dehumidification Equipment, Heat Pipes and Components” and he is the 2024 Region IV Membership Vice Chair.
In 2018 Darrell began his current role as President of Carolina Heat Pipe, designing and integrating heat pipe solutions for energy efficient dehumidification and air to air energy recovery applications.
Darrell earned his Bachelor of Science in Electronics Engineering Technology from Indiana State University and his Master of Science in Building Construction and Facility Management from The Georgia Institute of Technology.
Darrell and his wife reside in Anderson, SC.
