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For E Tech Final
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46
Architecture
Undergraduate 3
12/06/2011

Additional Architecture Flashcards

 


 

Cards

Term
Generally, in terms of thermal comfort, the goal is to maintain the __________ as close to ambient room temperature(s) as possible.
Definition
Mean Radiant Temperature (MRT)
Term
In terms of thermal comfort (as indicated by Lechner), air movement affects the heat-loss rate by both __________ and __________.
Definition
Convection and evaporation
Term
The shapes of the psychrometric chart get their shape and proportions from the fact that as the air gets __________, it can hold __________ water vapor.
Definition
Warmer, more
Term
The condition that describes the point at which the air is fully saturated and cannot hold any more moisture is called __________. Any __________ beyond this point results in condensation.
Definition
Dew point temperature, cooling
Term
In reference to the bioclimatic chart, true or false: Internal gains are sufficient for thermal comfort in a room between 68 degrees and 78 degrees Fahrenheit.
Definition
FALSE
Term
Because of water vapor and clouds in hot and humid climates, the diurnal temperature range is _____.
Definition
small
Term
Using the psychrometric chart, if the dry bulb temperature is 75 and the wet bulb temperature is 60, the relative humidity (RH) is _______.
Definition
40%
Term
True or False: The psychrometric-bioclimatic chart is a tool for understanding temperatures and coincident relative humidities of a climate
Definition
True
Term
Consider an envelope-dominated building. the following factors impact the heat gain/loss of the structure:
Definition
Geometry of building (surface-area volume ratio)
Orientation and location of building
Climate
Term
______________is the large amount of energy required to change the state or phase of a material.
Definition
Latent heat
Term
Energy issues are the largest sub-set of all sustainability issues. Which of the following is the largest sub-set of energy issues that will influence design decisions?
Definition
Solar issues
Term
Of the energy sources consumed in the United States, approximately what percentage is from renewable sources?
Definition
Under 10%
Term
Massive envelope constructions are suitable for subtropical desert-like climates. What factor of these climates mostly influences this choice?
Definition
Fluctuation of temperature between day and night (diurnal fluctuations).
Term
Generally, in terms of thermal comfort, the designer's goal is to maintain internal room comfort for occupants through the control of various temperature conditions and fluctuations. The combined effect of these internal heat sources is called
Definition
the mean radiant temperature (MRT)
Term
Resistance (R), the insulation value of a composite structure, is related to conduction in the following manner:
Definition
R is inversely proportional to U
Term
The second law of thermodynamics states that heat transfer takes place in one direction, from a [-----] grade to a [-----] grade state, seeking [-----] distribution of heat energy.
Definition
The second law of thermodynamics states that heat transfer takes place in one direction, from a [higher] grade to a [lower] grade state, seeking [even] distribution of heat energy.
Term
Which of the following statements are true of the Architecture 2030 initiative? Complete the sentence, "Architecture 2030...
Definition
includes new buildings as well as renovations in its goal setting strategy."
sets forth that buildings are to use no fossil fuel nor GHG-emitting energy to operate by 2030."
allows some level of renewable or renewable energy credit (REC) to achieve its goals."
and energy code (ASHRAE) revisions seem to be seeking dissimilar performance outcomes from the built environment."
Term
U.S. Energy use as percentage of World Energy use=
Definition
approximately 25%
Term
Building industry energy use within the U.S. =
Definition
approximately 50%
Term
true or false: One of the main reasons for regional differences in architecture is the response to climate.
Definition
True
Term
Transmittance
Definition
(passes through)
Term
. Absorptance
Definition
(converted to sensible heat within material)
Term
. Reflectance
Definition
(reflected off of the surface)
Term
. Emittance
Definition
(given from the surface, reducing sensible heat)
Term
Mean Radiant Temperature (MRT):
Definition
The mean radiant temperature describes the weighted average, radiant environment, for a point in space.
Term
Primary methods of heat flow
Definition
conduction, convection, radiation
Term
One cubic foot of water can store or transfer the same amount of heat as over ______ of air.
Definition
3000 ft3
Term
Climate is :
Definition
largely a function of sun angles (latitude) and therefore, we can begin to
understand climate regions based upon their locations
Term
Cosine law
Definition
Term
Passive solar 2 common elements
Definition
Term
3 types of passive solar systems
Definition
Term
BIPV
Definition
Building integrated Photovoltaics
Term
brisoleil :
Definition
Term
Geo Exchange | Geo Thermal:
Definition
1 -Due to their high heat capacity, large bodies of water and the ground have a time lag temperature compared to the air.
2 –A few feet below, the ground temperature remains constant due to the cyclic nature of seasons.
Term
GHP (geothermal heat pumps)systems consist of three parts*:
Definition
1.The ground heat exchanger2.The heat pump unit3.The air delivery system (piping and ductwork)*
Term
Closed Loop:
Definition
A ground heat exchange method in which the heat transfer fluid is permanently contained in
a closed piping system. Also called a ground-loop system.
Term
Open Loop:
Definition
A ground heat exchange method in which the heat transfer fluid is part of a larger
environment. The most common open loop systems use ground water, reclaimed water, or surface water
as the heat transfer medium.
Term
A geo-exchange system, within which the heat transfer medium is permanently contained in a sealed piping system, is called a (an):
Definition
Closed Loop System
Term
In mechanical systems duct routing, a duct system is often referred to as a tree system. This is because:
Definition
The main (trunk) line is the largest duct and the supply ducts (branches) get progressively smaller
Term
The main component that allows a typical air-conditioner to convert to a heat pump is _____________.
Definition
The reversing valve
Term
Within the basic refrigerant cycle the refrigerant becomes cold as it passes through the ___________.
Definition
Expansion Valve
Term
Within the definition of Single duct all-air systems, VAV stands for:
Definition
Variable Air Volume
Term
Air movement affects the heat-loss rate by both __________ and __________.
Definition
convection and evaporation
Term
In mechanical (HVAC) drawings, a supply duct is drawn as a rectangle inscribed with:
Definition
Two lines that crisscross each other
Term
In mechanical (HVAC) drawings, a return duct is drawn as a rectangle inscribed with:
Definition
A diagonal line
Term
___________________ ponds are basins that catch runoff from higher elevation areas. They are usually shallow and contain some water while limiting flooding and removing pollutants.
Definition
retention pond
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