Chapter 37
The term "heat loss refers to ____.
A transfer of heat from inside a building to outside a building.
Because vented crawl space is exposed to outside outdoor air, heat loss through a floor over crawl space is calculated the same as that of an____
exterior wall
True or False: Shiny, white surfaces are best for heat gain.
FALSE
The energy in a beam of radiation can be described as a stream of particles called ____.
The passing of outside air into a building is referred to as ___?
Infiltration
Most local building codes require that heat loads for residential buildings be performed in compliance with the ACCA___specification.
Manuel J
True or false: Heat always flows from hot to cold.
TRUE
In an electromagnetic wave, the ___is the height of the wave.
Amplitude
Human eyes are sensitive to about ___% of energy in solar radiation.
25%
The passing of inside air out of a building is referred to as ___?
Exfiltration
The relative ability of a surface to allow light rays to pass through describes ____.
Emissivity
True or False: Manuel D is for calculating air handler size for residential layouts.
FALSE
The tubes in an evacuated tube collector lose almost no heat because heat cannot travel easily through___.
A Vacuum.
What is a purpose if a solar collector in a solar thermal hot water system?
to absorb heat from the suns energy and transfer it to the domestic water.
What deos BAS stand for?
Building Automation Systems
Most local building codes require that heat loads for commercial buildings be performed in compliance with ACCA____specification.
Manuel N
What is heat leakage?
The heat that is conducted through the walls, ceilings, and floors when there is a temperature difference between spaces.
Liquid based systems in cold climates often use as mixture of water and ___ instead of pure water to reduce the freezing point of the liquid.
Glycol
True or False: A full storage CTES for large cooling systems could use large tank farms for storing heat thermal storage.
FALSE.
True or False. An energy audit is concerned with energy usage and does not take into account the weather data where a building is located.
FALSE
Heat loss due to construction of a concrete slab on grade is calculated based on ____.
the perimeter of the slab
What is the result if my home has too many air exchanges?
Higher energy cost, and discomfort due to high humidity issues, and poor air quality,
What is the maximum surface temperature that a black object can reach solely due to sun exposure is about____
253 degrees F.
Most ultraviolet radiation is absorbed by ____
OZONE
A ____ is a device that measures a physical quantity and provides an output based on the measure value.
Sensor