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This concept is applied in a passive displacement ventilation system which distributes cooled air in a room without the use of a fan.
The novel design aspect involves the introduction of air directly to the centre of an unoccupied room by use of a fan and duct giving a controlled air exchange rate and allowing an evaluation of particle losses purely due to uptake on indoor surfaces without the losses during penetration of the building envelope which affect most measurement programmes.
The use of a fan, however, caused a significantly higher loss of water due to evaporation and a lower surface temperature as compared to bubbling (Fig. 7a).
It also acts as a heat sink, cooling the drive without the use of a fan, saving additional energy and noise.
This was designed by a Scottish marine draughtsman, Mr. A.P.H. Anderson, who proposed the use of a fan system to condense spent steam and improve draughting of the fire on long-distance runs in regions with poor access to water.
Cooling can be achieved by a large surface area fin type heat sink as shown in Figure 1A, commonly used for CPUs in computers, with additional use of a fan if the LED is to be used in a small confined space.
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An experimental work demonstrating the use of a piezo fan for electronics cooling will be executed.
Nonpharmacologic interventions such as acupuncture and pulmonary rehabilitation have potential effectiveness, although further research is needed, and use of a simple fan warrants consideration given its potential benefit and minimal burden and cost.
These rules sometimes take on a life of their own: a debate in 2014 between two candidates to be governor of Florida ended up in a spat over one candidate's use of an electric fan under his podium.
Adding TE (thermoelectric) generators can provide electricity that permits not only the use of an electric fan increasing the ratio air to fuel to achieve a complete combustion in the stoves but also the satisfaction of basic needs: light, phones and other electronic devices.
The Florida governor's race that was already one of the most negative in the state's history became even nastier – and weirder – as Republican Governor Rick Scott and Democrat Charlie Crist fought over everything from self-defence laws and the economy to the use of an electric fan during a debate on Wednesday night.
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