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Air naturally stratifies, i.e. warmer air rises to the ceiling while cooler air sinks, meaning that colder air settles near the floor where people spend most of their time. A ceiling fan, with its direction of rotation set so that the warmer air on the ceiling is pushed down along the walls and into the room, heating the cooler air.
These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.
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(Antara Baik dan Amat Baik) B 3.00 Good (Baik) BC 2.50 Between Average and Good (Antara Cukup dan Baik) C 2.00 Average (Cukup) D 1.00 Below Average (Hampir Cukup) E 0.00 Unsatisfactory (Gagal/Tidak Lulus) T Unavailable
A ceiling / ˈ s iː l ɪ ŋ / is an overhead interior roof that covers the upper limits of a room.It is not generally considered a structural element, but a finished surface concealing the underside of the roof structure or the floor of a story above.
A ceiling is the upper surface of a room.. Ceiling may also refer to: . Ceiling function in mathematics; Glass ceiling, a barrier to advancement of a qualified person; Ceiling (aeronautics), the maximum density altitude an aircraft can reach under a set of conditions
At low frequencies (such as the line frequency of 50 or 60 Hz), designers can usually ignore the skin effect. For these frequencies, the skin effect is only significant when the conductors are large, more than 0.3 inches (7.6 mm) in diameter. Switching power supplies must pay more attention to the skin effect because it is a source of power loss.
The German name, Fachhallenhaus, is a regional variation of the term Hallenhaus ("hall house", sometimes qualified as the "Low Saxon hall house").In the academic definition of this type of house the word Fach does not refer to the Fachwerk or "timber-framing" of the walls, but to the large Gefach or "bay" between two pairs of the wooden posts (Ständer) supporting the ceiling of the hall and ...
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