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Ceiling Radiant Cooling Application in University Environment

Explore the successful implementation of ceiling radiant cooling in an early 1900's university building. Learn about benefits like load decoupling, condensation control, and acoustical performance, providing an educational tool for students and professionals.

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Ceiling Radiant Cooling Application in University Environment

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  1. Application of Ceiling Radiant Cooling in a University Environment ASHRAE Chicago Seminar 7, 1/26/03 Stanley A. Mumma, Ph.D., P.E. Professor, Architectural Engineering Penn State University email: sam11@psu.edu Web: http://doas-radiant.psu.edu

  2. Project Location • Engineering Unit B, a building built in the early 1900’s

  3. Some Space Attributes • Area • Height • Use • Occupants • Surroundings

  4. Project Objectives • Decouple the space sensible & latent loads • Control condensation • Experience ceiling radiant cooling • Check the capacity of radiant cooling • Check the acoustical qualities • M & O • Controllability • Educational tool for OPP, Students, PE’s • Demo Web based access

  5. DOAS/Radiant Cooling Schematic

  6. A Virtual Tour

  7. OA RA Enthalpy Wheel

  8. Off Design Day Performance

  9. What About Controls? • The control Panel

  10. Space Temperature & Condensation Prevention Control

  11. Enthalpy Wheel Control

  12. Experiences Since August ‘02 • Balancing the DOAS Air Flows • Operation under Manual Control, --EW! • Operation Of The Panel Control Valve When Placed In The Automatic Mode • Condensation Experiences • Moisture Migration Through the very Porous Envelope • Operation of the Enthalpy Wheel in the Winter.

  13. Experiences Continued • Sensible and Latent load decoupling • Acoustical Performance • Maintenance • Controls • Dirt and Drafts • Thermal Comfort

  14. Conclusions QUESTIONS • The system is working even better than expected! It is this speaker’s opinion that the system represents the next generation HVAC solution. • No barriers were observed in this project that would prevent the adoption of DOAS/Radiant systems by the HVAC Industry! • In the ALI-DOAS short course this afternoon at 2:00, I will have more time to lay out the entire approach. Join me if you want to learn more—or go to the DOAS web site!

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