|Logger plot of water barrel storage and shop temperatures|
with fan forced outside air flow over barrels at night.
This scheme only works for climates in which the night time temperature drop to relatively low levels even when the day temperatures are hot -- typical of a lot of the US west.
All the details and questions on night air cooling of water barrel thermal mass...
|Water barrels for storing night time "coolth"|
|Rough prototype cooling tunnel to direct fan forced night time|
airflow over the water barrels for good heat transfer.