A cooling board is a board used to present a dead body. In winter months it would be impossible to bury the dead, so the body is wrapped and propped in a barn until the ground thaws out.
"When I got there she was laying on a cooling board."
We're moving out of our place next month, so you're invited to our house cooling party this Saturday. Please bring your own bag, and be prepared to go home with some lovely parting gifts.
Cooling towers are heat removal devices used to transfer process waste heat to the atmosphere. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or rely solely on air to cool the working fluid to near the dry-bulb air temperature. Common applications include cooling the circulating water used in oil refineries, chemical plants, power stations and building cooling. The towers vary in size from small roof-top units to very large hyperboloid structures that can be up to 200 metres tall and 100 metres in diameter, or rectangular structures that can be over 40 metres tall and 80 metres long. Smaller towers are normally factory-built, while larger ones are constructed on site.