Night time cooling by ventilation or night sky radiation combined with in-room radiant cooling panels - ASHRAE Toronto Chapter - April 15th, 2019

When
15 Apr 2019
7:30 AM - 10:30 AM
Location
Novotel Downtown Toronto 45 The Esplanade, Toronto, ON M5E 1W2
Spaces left
5
Registered
30 registrants

Registration is closed

NOTICE OF MEETING

Night time cooling by ventilation or night sky radiation combined with in-room radiant cooling panels including Phase Change Materials.

Breakfast Seminar

Date:	Monday April 15th, 2019
Venue:	Novotel Downtown Toronto 45 The Esplanade, Toronto, ON M5E 1W2 Directions
Registration:	7:30 am
Breakfast & Networking:	8:00 am to 9:00 am
Presentation:	9:00 am to 10:30 am

PRESENTATION

Night time cooling by ventilation or night sky radiation combined with in-room radiant cooling panels including Phase Change Materials.

Night sky radiative cooling technology using PhotoVoltaic/Thermal panels (PVT) and night time ventilation have been studied both by means of simulations and experiments to evaluate their potential and to validate the created simulation model used to describe it. An experimental setup has been constructed at the Technical University of Denmark, where the outside PVT panels are connected through a storage tank to in-room radiant ceiling panels. The radiant ceiling panels include phase change material (PCM) and embedded pipes for circulating water. Due to the phase change material, it is possible to store the heat generated during the day from internal sources. Then during the night, the panels can be cooled down again and regenerated. The possibility of cooling down the panels during the night with outside air was also studied. The night cooling power of the PVT panels ranged from 92 to 119 W/m2 depending on the sky clearness. This cooling power was enough to remove the stored heat and regenerate the ceiling panels. The validation simulation model results related to PCM were close to the corresponding results extracted from the experiment, while the results related to the production of cold water through the night sky radiative cooling differed significantly. The possibility of night time ventilation was studied through simulations for three different latitudes. It was concluded that for Danish climatic conditions night time ventilation would also be able to regenerate the panels while its contribution is not sufficient in warmer South-European climates.

Learn how to surpass the ASHRAE Standards to refine and better maintain your mechanical and electrical/lighting systems. This will help conserve energy, enhance the health, well-being, and productivity of the occupants of your clients’ buildings, and save (read that “make”) money for your client, the building owner.

DISTINGUISHED LECTURER

Bjarne W. Olesen Ph.d.

ASHRAE Past President

Professor, Intl. Centre for Indoor Environment and Energy

Technical University of Denmark, Lyngby, Denmark

Master's degree in civil engineering, 1972. Ph.D., Laboratory of heating and Air Conditioning, Technical University of Denmark, 1975. In the period 1972-1990 Research scientist at the Laboratory of Heating and Air Conditioning. Part time affiliated as product manager at Brüel & Kjaer 1978-1992. Senior Research Scientist, College of Architecture, Virginia Tech. in the period 1992-1993. Since 1993 until January 2004 Head of Research & Development at UPONOR-VELTA GmbH KG & Co., Norderstedt, Germany. Since January 2004 full professor in Indoor Environment & Energy at the Technical University of Denmark and director of the International Centre for Indoor Environment and Energy, Technical University of Denmark. Awarded the Ralph Nevins Award (1982), Distinguish Service Award (1997), Fellow Award (2001) and Exceptional Service Award (2006) from ASHRAE. Awarded the Medal of Honour from the German Engineering Society (VDI-TGA, 2005) and International Honorary Member of SHASE (Society of Heating, Air-Conditioning and Sanitary Engineers of Japan) and of AICARR (Italian Society for HVAC). Has served as ASHRAE President and on several ASHRAE Committees (technical, standards, etc.)

Is active in several ASHRAE-CEN-ISO-DIN standard committees regarding indoor environment and energy performance of buildings and HVAC systems. Has published more than 400 papers including more than 80 in peer reviewed journals.

No Walk-In Registrations will be Permitted

Need Assistance?

Feel free to contact the following:

Beatriz Salazar
ASHRAE Toronto Technology Transfer Committee Chair
[Bo.Salazarg@gmail.com]

ASHRAE Toronto Chapter | 2350 Matheson Blvd. East #101, Mississauga ON L4W 5G9

Click here to receive chapter news

This web site is maintained by the ASHRAE Toronto Chapter of ASHRAE. It does not present official positions of the Society nor reflect Society policy. ASHRAE chapters may not act for the Society and the information presented here has not had Society review. To learn more about ASHRAE activities on an international level, contact the ASHRAE homepage at http://www.ashrae.org.