Search results
Results from the WOW.Com Content Network
There are many types of heated clothing. Most notably these use 12, 7.4, and 5-volt powerbanks. The 5-volt powerbank allows one to use a common powerbank for both heating apparel and charging personal electronics. The 7.4-volt battery is the most common type of heated clothing battery system, and may be rechargeable.
A heating element is a device used for conversion of electric energy into heat, consisting of a heating resistor and accessories. [1] Heat is generated by the passage of electric current through a resistor through a process known as Joule heating .
The heating is commonly done to a temperature of 180–220 °C (360–430 °F), depending on the fabric. [2] Ironing works by loosening the bonds between the long-chain polymer molecules in the fibres of the material. While the molecules are hot, the fibres are straightened by the weight of the iron, and they hold their new shape as they cool.
A clothes iron (also flatiron, smoothing iron, dry iron, steam iron or simply iron) is a small appliance that, when heated, is used to press clothes to remove wrinkles and unwanted creases. Domestic irons generally range in operating temperature from between 121 °C (250 °F) to 182 °C (360 °F).
Electric heating devices can be built in any required size and can be located anywhere within a plant. Electric heating processes are generally clean, quiet, and do not emit much byproduct heat to the surroundings. Electrical heating equipment has a high speed of response, lending it to rapid-cycling mass-production equipment.
The heating element in most dryers is a bare, coiled nichrome wire that is wrapped around mica insulators. Nichrome is used due to its high resistivity, and low tendency to corrode when heated. [3] A survey of stores in 2007 showed that most hair dryers had ceramic heating elements (like ceramic heaters) because of their "instant heat ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A focus group of 26 soldiers was surveyed to compare heating an MRE with a Zesto-Therm pad compared to the canteen cup method heated with a trioxane fuel bar. 100% preferred the flameless ration heater: it was compact, disposable, and didn't require equipment to carry and clean. [1]: 4 However, it was about twice as expensive as a trioxane fuel ...