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Power density is a measure of heat flux (denoted Φ) and is most often expressed in watts per square millimeter or watts per square inch. Heating elements with low power density tend to be more expensive but have longer life than heating elements with high power density. [6] In the United States, power density is often referred to as 'watt ...
Medium-wave (MWIR) and carbon infrared heaters operate at filament temperatures of around 1,000 °C (1,830 °F). They reach maximum power densities of up to 60 kW/m 2 (5.6 kW/sq ft) (medium-wave) and 150 kW/m 2 (14 kW/sq ft) (carbon). Far infrared emitters (FIR) are typically used in the so-called low-temperature far infrared saunas. These ...
A hot plate or hotplate is a heated flat surface on a stove or electric cooker on which food may be cooked. [3] It comprises a heated top which is flat and usually circular, and may be made of metal, ceramic, or heat-resistant glass, with resistive wire forming a heating element fitted underneath and a thermostat to control the temperature.
Most modern electric heating devices use nichrome wire as the active element; the heating element, depicted on the right, uses nichrome wire supported by ceramic insulators. Alternatively, a heat pump can achieve around 150% – 600% efficiency for heating, or COP 1.5 - 6.0 Coefficient of performance , because it uses electric power only for ...
A halogen oven, halogen convection oven, or halogen cooking pot is a type of oven that utilizes a halogen lamp as its heating element. Halogen ovens are often noted for being more energy-efficient than a conventional electric oven due to their more effective heating of food and faster cooking times. [1]
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