Module 13: Mechanical Systems Flashcards
1
Q
what are the 3 main configurations of furnaces, based on how air flows through them
A
- upflow for basemment floor locations
- horizontal fllow for crawl space installations
- downflow for installations in mobile homes or on the main floor of a slab-on-grade houses
2
Q
what is the coefficient of performance?
A
a point in time measure at steady-state, peak efficiency
3
Q
what are ground source heat pumps or earth energy system>
A
they extract heat from ground or underground water instead of air
4
Q
what is the energy efficiency ratio?
A
is a measure of how much cooling effect is provided by the air conditioner for each unit of electricity that consumes under steady-state operation
