Conference Editor

Jianshun Zhang; Edward Bogucz; Cliff Davidson; Elizabeth Krietmeyer

Keywords:

passive solar heating; passive cooling; controls; optimization; adaptive reuse

Location

Syracuse, NY

Event Website

http://ibpc2018.org/

Start Date

24-9-2018 3:30 PM

End Date

24-9-2018 5:00 PM

Description

Housing crises in urban centers and growing climate concerns are encouraging city planners and building owners to explore the conversion of commercial buildings into energy-efcient dwellings. Passive solar heating, shading, and natural ventilation are attractive in such adaptive reuse projects since they minimize operational energy, but they sufer from the perception of limited efectiveness, and passive heating is ofen disregarded entirely in cloudy climates. At the same time, passive heating has recently shown promise in the cloudy winters of western Oregon and upstate New York, allowing the San Francisco Bay area to provide an excellent opportunity for further exploration. Passive cooling measures, in turn, are essential to prevent overheating. Tis work investigates the conversion of a brick ofce space in Berkeley, CA into a residential lof, using movable insulation, operable windows, thermal mass, and shading to diminish the need for mechanical conditioning to the extent possible. To determine this extent, preliminary explorations in EnergyPlus were followed by Hooke-Jeeves and particle-swarm optimizations of control thresholds, following feld-validated techniques for passive heating and cooling simulation. Optimized parameters included skylight tilt; schedules for movable insulation, shading, and natural ventilation; and thermal mass quantity, each required to minimize annual sensible heating and cooling energy while maintaining adaptive thermal comfort. With optimal control, over half of the heating need could be met by passive solar collection and storage; likewise, most cooling (~80%) could be accomplished passively if shading and natural ventilation were well-controlled. Without these controls, most of the beneft was lost. We therefore propose replacing the term “passive” with “well-controlled passive” to refect the importance of controls in sensing conditions and adjusting movable elements to maximize the performance of these systems.

Comments

If you are experiencing accessibility issues with this item, please contact the Accessibility and Inclusion Librarian through lib-accessibility@syr.edu with your name, SU NetID, the SURFACE link, title of record, and author & and reason for request.

DOI

https://doi.org/10.14305/ibpc.2018.gb-1.04

Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License.

COinS
 
Sep 24th, 3:30 PM Sep 24th, 5:00 PM

Optimal Control Strategies for Passive Heating and Cooling Elements Reduce Loads by Two-Thirds in the Adaptive Reuse of a San Francisco Bay Area Office

Syracuse, NY

Housing crises in urban centers and growing climate concerns are encouraging city planners and building owners to explore the conversion of commercial buildings into energy-efcient dwellings. Passive solar heating, shading, and natural ventilation are attractive in such adaptive reuse projects since they minimize operational energy, but they sufer from the perception of limited efectiveness, and passive heating is ofen disregarded entirely in cloudy climates. At the same time, passive heating has recently shown promise in the cloudy winters of western Oregon and upstate New York, allowing the San Francisco Bay area to provide an excellent opportunity for further exploration. Passive cooling measures, in turn, are essential to prevent overheating. Tis work investigates the conversion of a brick ofce space in Berkeley, CA into a residential lof, using movable insulation, operable windows, thermal mass, and shading to diminish the need for mechanical conditioning to the extent possible. To determine this extent, preliminary explorations in EnergyPlus were followed by Hooke-Jeeves and particle-swarm optimizations of control thresholds, following feld-validated techniques for passive heating and cooling simulation. Optimized parameters included skylight tilt; schedules for movable insulation, shading, and natural ventilation; and thermal mass quantity, each required to minimize annual sensible heating and cooling energy while maintaining adaptive thermal comfort. With optimal control, over half of the heating need could be met by passive solar collection and storage; likewise, most cooling (~80%) could be accomplished passively if shading and natural ventilation were well-controlled. Without these controls, most of the beneft was lost. We therefore propose replacing the term “passive” with “well-controlled passive” to refect the importance of controls in sensing conditions and adjusting movable elements to maximize the performance of these systems.

https://surface.syr.edu/ibpc/2018/GB1/4

 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.