ETFL 60 = Elevated Temperature Flame Limit @ 60 Â°C. HOC = Heat Of Combustion. Compounds used as refrigerants may be described using either the appropriate prefix above or with the prefixes R- or Refrigerant.. Thus, CFC-12 may also be written as R-12 or Refrigerant 12.An alkene, olefin, or olefine is an unsaturated chemical compound containing at least one carbon-to-carbon double bond.hemical refrigerants are assigned an R number which is determined systematically according to molecular structure.
Energy stored in a capacitor. The energy stored in a capacitor is the same as the work needed to build up the charge on the plates. As the charge increases, the harder it is to add more. Potential energy is the charge multiplied by the potential, and as the charge builds up the potential does too.
Capacitors. A capacitor is an electrical component that stores and releases electrical charge. A capacitor is used to filter electricity in power supply lines, blocking direct current (DC) voltages and passing alternating current (AC) signals, among other things. semiconductor is an electrical component that conducts electricity in a specific direction. There are a variety of semiconductors that are created using different materials. Silicon is the most widely used material for semiconductors, with germanium, gallium arsenide and silicon carbide being used commonly.