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7
Indirect Solar Gain Strategy
Indirect Solar Gain Strategy is the rarest of the passive solar strategies. The sun strikes the thermal mass first and heat is passed to the space behind (no real window). This system is also known as a Trombe Wall (TW)
The mass is a dense, highly conductive material - such as 8-12" thick concrete, dense brick or water. Ventilation can be introduced between the glass and mass to flushout some heat build-up.
Problems include space allocation and layout:
-allow for an accessible space between the glazing and wall for maintenance and cleaning
- mass wall cannot have any blockings or other material which distrupts heat transfer into the secondary space
- less daylight and southern view since the thermal mass must be placed there, this makes it a less popular option
Benefits include less glare and less overheating on sunny days. It also offers large radiant heat gains even into night.
The mass is a dense, highly conductive material - such as 8-12" thick concrete, dense brick or water. Ventilation can be introduced between the glass and mass to flushout some heat build-up.
Problems include space allocation and layout:
-allow for an accessible space between the glazing and wall for maintenance and cleaning
- mass wall cannot have any blockings or other material which distrupts heat transfer into the secondary space
- less daylight and southern view since the thermal mass must be placed there, this makes it a less popular option
Benefits include less glare and less overheating on sunny days. It also offers large radiant heat gains even into night.
