Tag: energy-saving

Evaporative cooling plus drying with desiccants equals cool air for less cost.

Keeping air cool in homes and offices this summer will be expensive--about 5 percent of the energy used in the United States each year goes to running air conditioners. But researchers at the U.S. National Renewable Energy Laboratory (NREL) in Golden, CO, have come up with a new air-conditioner design that they say will dramatically increase efficiency and eliminate gases that contribute to global warming.

Being too close to energy-saving light bulbs could cause skin reddening because of ultraviolet light emissions, health experts have warned.

The Health Protection Agency (HPA) cautions against being closer than 30cm (1ft) to some compact fluorescent (cfl) bulbs for long.

But it added there is no evidence that such bulbs pose a cancer threat.

Enclosed CFL lights - where the coil is covered like a traditional bulb - are safer, it advised.