Then it will come down vertically until it hits the floor. Now it will travel, at floor level, back in toward the center of the room and then back up to the ceiling fan. What a genius! Now everyone can use ceiling fans to equalize the temperature without feeling a draft in winter. Oh yea! So what happens when this warm air starts down the walls and hits furniture, bookshelves, etc? It will start a horizontal movement toward the center of the room. Now when it comes out past the obstruction, will it turn and fall toward the floor, where it can mix? If warm air falls instead of rising, then I guess it could.
Office presentation rooms too do not desire light to reflect from the walls on to the projection screen or wall thus, here too, the back ceiling comes in handy. Commercial kitchens like the restaurants or hotels must have black color ceilings so that soot from charcoal ovens on grills that is deposited on the roof mainly does not alter the look and feel of the kitchen. A lighter colored roof for a kitchen can be disastrous since maintaining and cleaning can be a big issue. Blackened ceilings help solve this issue.
And everyone knows how much better it feels to have a breeze blowing over you on those hot summer days. Even though the air is at the exact same temperature as its surrounding environment, the air movement has a chill affect that helps lower the skin temperature. Think of it as traveling in your car on a hot summer day with the windows full open... doesn't it feel good? That's exactly the same thermodynamic principle that has been known for thousands of years - well before cars were invented.
Ceiling Friday , April 13th , 2018 - 07:30:23 AM
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