Flashcards
5.2
Cards in this deck (13)
- 1—Energy efficiency
- 2What is the efficiency?Efficiency is a measure of how much work or energy is conserved in a process.
- 3wasted energyA wasted energy is an energy which is transformed without significant use.
- 4Energy efficiencyIt is a measure of how much input energy is converted into useful output energy.
- 5what is an energy rating label?It is a label affixed to various appliances prior to retail sale, which allows consumers to compare the energy efficiency of product and allows consumers to know how much power a particular model will use to run.
- 6what is kW?kilowatt duhh
- 7The energy rating label was first used in...new south wales and Victoria
- 8efficient housing?A 5-Star rated building. It has a high level of thermal energy performance, and will require minimum levels of heating and cooling to be comfortable in winter and summer.
- 9InsulationInsulation is the process of keeping heat, sound, or electricity from spreading.
- 10The energy that is normally wasted is...Heat energy
- 11LEDLED lights are the latest technology in energy efficient lighting. LED stands for 'Light Emitting Diode', a semiconductor device that converts electricity into light.
- 12what is a car radiator?A cooling system works by sending a liquid coolant through passages in the engine block and heads. As the coolant flows through these passages, it picks up heat from the engine. The heated fluid then makes its way through a rubber hose to the radiator in the front of the car.
- 13...bye