Getting Aggressive About Passive Design

Architects cannot approach the final frontier in low-energy, zero-carbon design
without addressing that old energy hog—and beloved American friend—air-conditioning

May 2007

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Questions:

Program Code: 057EDIT1
LU: 1

1. What are passive ventilation design strategies?
a. lower-cost ventilation methods
b. ventilation without using fans
c. harnessing wind and solar power
d. anything that reduces the dependence on air-conditioning

2. What is the result of an integrated system of passive ventilation?
a. less expensive to install the system
b. less design time is needed for passive systems
c. smaller overall mechanical systems
d. easier to calculate the capacity of the system

3. The Loyola University’s concrete barrel vaults will serve all except which purpose?
a. optimize the indirect lighting
b. carry radiant cooling/heating tubes for the floor
c. carry radiant cooling/heating tubes for the ceiling
d. contribute more surface area for the radiant system

4. How will the worries of condensation from cooling slabs of concrete be controlled?
a. the cooling would not be run on days colder than the dewpoint
b. portable dehumidifiers will run when the dewpoint is high enough for condensation
c. the building’s HVAC system will accommodate for the humidity
d. the climate in Chicago does not get humid when it is hot

5. In which way will the trench affect the heating/cooling at Loyola’s library?
a. the trench continuously feeds cool air into the building
b. the trench allows air to warm up before entering the building
c. the trench pulls air through when it is open, to both heat the building and facilitate the stack effect
d. the trench allows both warm and cool air to flow into the building

6. Studies prove that people accept a wider range of temperature conditions in which circumstance?
a. when they are paid well and praised
b. when they have control over their environment
c. when they are young
d. when they are happy

7. Creating an airflow network analysis takes all except which factor into consideration?
a. age of the building
b. internal heat load
c. occupancy
d. solar obstructions

8. Modern air-conditioning was not demanded by the public until which happened?
a. grocery stores adopted air-conditioning
b. the World’s Fair introduced air-conditioning
c. movie theaters adopted air-conditioning
d. ASHRAE produced a chart of occupant comfort levels

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9. Air-conditioning became the standard for buildings in America due in part to which event?
a. Willis Carrier installed the first air-conditioning in Brooklyn
b. ASHRAE’s occupant comfort chart became Standard 55
c. the first enclosed shopping center was built
d. nuclear energy experiments were performed

10. What should you do to convince a client to approve mixed-mode ventilation?
a. chart the annual temperature fluctuations for the project’s climate
b. design more than 4 percent of the wall as operable windows for every square foot of floor area
c. develop a CFD model of the building to gauge airflow patterns
d. all of the above

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