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Pamaypay. Pamaypay (Tagalog pronunciation: [pɐmaɪˈpaɪ], puh-my-PY), also known as paypay, payupas, buri fan, or anahaw fan, [1][2][3] is a type of traditional hand-held fan from the Philippines. It is typically made of woven buri palm or anahaw palm leaves. It is usually heart-shaped, and woven in a technique known as sawali (twilled).
HVAC ventilation exhaust for a 12-story building An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines. Mechanical, or forced, ventilation is provided by an air handler (AHU) and used to control indoor air quality.
Fan (machine) A household electric fan. A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some ...
The fan maintains a constant static pressure in the discharge duct regardless of the position of the VAV box. Therefore, as the box closes, the fan slows down or restricts the amount of air going into the supply duct. As the box opens, the fan speeds up and allows more air flow into the duct, maintaining a constant static pressure. [11]
KDK International Philippines Corp. (KIPCO) was founded in November 1979 as a joint venture company between Avenue Electrical Supply and Matsushita Seiko Co. Ltd, for the purpose of importing, distributing and selling all KDK products in the Philippine market such as electric fans, ventilating fans and other air moving equipment.
Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2][3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4] Heat pumps are similar in many ways to air conditioners, but ...
Window fan. A small twin window fan with thermostat. A large single whole-house window fan with three-speed control and intake/exhaust switch. The same fan, in operation. A window fan is a fan designed to be placed inside the frame of a window. Window fans have been used for many decades to maintain comfortable temperatures and ventilation ...
As more architecture incorporated mechanical ventilation, the cost of outdoor air ventilation came under some scrutiny. In 1973, in response to the 1973 oil crisis and conservation concerns, ASHRAE Standards 62-73 and 62–81) reduced required ventilation from 10 CFM (4.76 L/s) per person to 5 CFM (2.37 L/s) per person. In cold, warm, humid, or ...