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The company was originally incorporated on 28 January 1933, and as Vent-Axia Limited private company on 4 April 1936, to produce and sell ventilation equipment. [2] [3] During the Second World War, the company made fans for 10 Downing Street. [4] In 1946, the company acquired a new factory in Putney with 18,000 square feet (1,700 m 2) of floor ...
Title of the Boeing T-43A Flight Manual. An aircraft flight manual (AFM) is a paper book or electronic information set containing information required to operate an aircraft of certain type or particular aircraft of that type (each AFM is tailored for a specific aircraft, though aircraft of the same type naturally have very similar AFMs).
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Air volume regulator. Variable air volume (VAV) is a type of heating, ventilating, and/or air-conditioning system.Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant or varying temperature.
HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering.The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency.
Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space. The control circuit in a household HVAC installation.
Drain-waste-vent system or plumbing drainage venting, pipes leading from fixtures to the outdoors; Duct (flow), used to deliver and remove air; Flue, a duct, pipe, or chimney for conveying exhaust gases from a furnace or water heater; Gas venting, a safe vent in the hydrocarbon and chemical industries; Medical ventilator, mechanical breathing ...
Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...