Ch 6

Front 1

Active solar enerry
collection

Back 1

systems use circulating pumps and fans to collect and
distribute heat

Front 2

Passive solar energy collection

Back 2

techniques
do not make use of any externally powered, movingparts, such as circulation
pumps, to move heated water or air.

Front 3

open loop solar collection

Back 3

the heated water or air is
directly distributed for use

Front 4

closed loop solar collection

Back 4

a collection medium is used
to collect the heat and transfer it to water or air for end use

Front 5

theft-plate collector

Back 5

The flat plate offers several advantages, including an ability to
collect heat from diffuse sunlight, which is sunlight that bounces off of
clouds, even on cloudy days.

Front 6

conduction

Back 6

the transfer of heat by molecule
to molecule from a body at a higher temperature to that of a lower
temperature.

Front 7

linear-concentrating
parabolic collector.

Back 7

Parabolic collectors must track the sun from east to
west in what is known as the azimuth path

Front 8

azimuth path

Back 8

the path the sun travels daily

Front 9

compound parabolic collector

Back 9

is a combination
of a flat-plate collector and a parabolic
collector

Front 10

parabolic
dish collector

Back 10

This
type of solar collector has a tremendous collection raiio.

Front 11

zenith path

Back 11

the height of the sun-in the
sky

Front 12

ilirect gain
approach

Back 12

there are no significant architectural provisions
made to collect solar energy, other than facing windows in the
proper direction

Front 13

indirect gain npproach

Back 13

use of a storage medium to store
heat for later use.

Front 14

trombe wall

Back 14

a common application of the indirect gain approach.

Front 15

phase change

Back 15

occurs when a substance changes its
state (liquid, solid, or gas) to another state

Front 16

isolated gain
approach

Back 16

the isolated gain approach, the solar
collector is isolated from the structure to be heated.

Front 17

conoectioe loop

Back 17

is formed that does not require any circulating pumps or
fans

Front 18

photoelectric effect

Back 18

The process of converting sunlight to electricity begins with tiny
bundles of light known as photons

Front 19

photoooltaic cell

Back 19

is a semiconductive material that emits free electrons when
exposed to light

Front 20

evaporator

Back 20

(freezing unit