#mechanical system

OMA, MILSTEIN HALL, ITHAKA / NY

chilled beam system with radiant floor heating and DOAS; see this link for system analysis:

https://issuu.com/woodcheng/docs/book_single_pages

https://lsc-pagepro.mydigitalpublication.com/article/Connecting+the+Campus+With+steel/811388/78782/article.html

ESTUDIO HERREROS, JOINT RESEARCH CENTER, SEVILLE / SPAIN

a scheme with five "fingers" and one vertical element - the tower

image 1 (top): figure-ground map - location of building in relationship to urban context.

image 2: contextual siteplan

imate 3: building plan in immediate context

image 4: aerial view of building

image 5: facade detail section + elevation

image 6: view of exterior access balconies

image 7: view of interior space - note the wood ceiling, the exposed ductwork underneath and the suspended lighting panels (also seen in facade detail section)

https://estudioherreros.com/en/project/jrc-sevilla/

ENVIRONMENTAL STRATEGIES - MECHANICAL SYSTEM

A RADIANT COOLING SYSTEM:  https://www.bdcnetwork.com/21-tips-executing-radiant-cooling-systems-aia-course

RADIANT HEATING AND COOLING - CHILLED CEILINGS:  https://continuingeducation.bnpmedia.com/courses/price-industries/architects-warm-to-chilled-ceilings/1/

HEATING AND COOLING SYSTEMS AT THE TULANE LAVIN-BERNICK CENTER

VRF (variable refrigerant flow) SYSTEM - has zoning capability; can heat and cool simultaneously; high energy efficiency since air no longer moves through ductwork - instead, system moves conditioned refrigerant to the locations where it is needed.

Air-cooled systems can be placed on roofs, mounted indoors with ducts to the outside and used on grade level installations.

Water-cooled systems can offer a more flexible installation, compact design and can be utilized for geothermal heating and cooling.

https://www.achrnews.com/articles/134464-vrf-gaining-acceptance-in-the-hvac-marketplace

https://www.buildings.com/article-details/articleid/21422/title/the-emergence-of-vrf-as-a-viable-hvac-option

LIVING BUILDING AT GEORGIA TECH - architects: The Miller Hull Partnership (arch. of the Bullitt Center) + Lord Aeck Sargent

a 42,000 sq.ft. building oriented north-south, with a wide porch on its western side. glulam structure with a central atrium wrapped in glass

Mechanical system: Radiant pipes embedded in concrete floors will heat and cool most of the building. In the summer, a custom-made dedicated outdoor air system, or DOAS, will dehumidify the building by running outside air over cooler coils that condense out moisture as the air enters the building. And photovoltaic panels on the upper roof are expected to generate nearly 300 kilowatts of electricity.

Brune says his team spent a fair amount of time modeling screening options being considered by the design team to allow natural light into the building while reducing the cooling. To supplement shade trees, the architects settled on strategically placed, external, horizontal shades on east and west windows. The collage of energy solutions offers a tantalizing example of how the building itself might advance one of the project’s larger goals: To serve as a model for regenerative building across the Southeast and in similar climates around the world.

“Our aspiration is that the systems being employed on this project, and the mechanical solutions in particular, will serve as an example to be replicated by others in high humidity climates.”

THE WYLY THEATER IN DALLAS HAS A CHILLED BEAM SYSTEM BY TITUS

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“There is a myth that radiant cooling can be used only in arid climates. The fact is that radiant cooling has been successfully done in one of the most hot and humid climates in the world — Thailand. The Bangkok airport boasts 1.6 million square feet of radiantly-cooled floor. It is used in a very practical application — to cool areas where there is high solar heat gain through windows onto floors. According to ASHRAE, solar heat gain through large areas of glass can be up to 70% of the cooling load, especially with southern exposure.”