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The frictional heating is detected on the surface of the fan blade by a thermal imaging sensor. [1] To examine a complete fan blade, the convex and concave surfaces of the fan blade airfoil are divided into zones and the computer controlled thermal sensor takes an image of each zone while sound energy is applied.
Usually, there is a transition from laminar to turbulent as the plume moves away from its source. This phenomenon can be clearly seen in the rising column of smoke from a cigarette. When high accuracy is required, computational fluid dynamics (CFD) can be employed to simulate plumes, but the results can be sensitive to the turbulence model chosen.
A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air ...
Thermal plasmas are generated in plasma torches by direct current (DC), alternating current (AC), radio-frequency (RF) and other discharges. DC torches are the most commonly used and researched, because when compared to AC: "there is less flicker generation and noise, a more stable operation, better control, a minimum of two electrodes, lower electrode consumption, slightly lower refractory ...
Dynamic insulation is a form of insulation where cool outside air flowing through the thermal insulation in the envelope of a building will pick up heat from the insulation fibres. Buildings can be designed to exploit this to reduce the transmission heat loss ( U-value ) and to provide pre-warmed, draft free air to interior spaces.
General Dynamics Land Systems is developing a new Power and Data Management Architecture to handle computer upgrades. [ 70 ] The Stryker's thermal sights can see out to 7,800 ft (2,400 m; 1.48 mi), compared to 330 ft (100 m) for night vision sights used by dismounted soldiers.
Creamware CutMaster Pro DSP-based sound card for sound synthesis. Creamware Audio GmbH (typically styled as creamw@re) was a manufacturer of DSP-based sound cards and synthesizers in Siegburg, Germany. These cards are used to create synthesized sounds for audio production in music and other audio environments.
Dielectric thermal analysis (DETA), or dielectric analysis (DEA), is a materials science technique similar to dynamic mechanical analysis except that an oscillating electrical field is used instead of a mechanical force. [1]