Sentences with phrase «electric resistance»

Our analysis of replacing electric resistance heat with heat pumps finds an opportunity to reduce residential sector electricity use nationwide by more than 2 %.

Conventional electric resistance heaters of the type used in electric cars, also make use of this principle.

For storage over a few days something simply made hot, perhaps just rocks, using electric resistance heating and electricity generated from steam when needed.

This is an effect that makes electric resistance shrink towards deep temperatures.

In some cases, though, these systems are sized below peak heating or cooling load — and installed with auxiliary electric resistance heat or cooling towers — to reduce installed costs.

It even has a heat pump to pull heat from the outside air, which is more efficient (and also more complex) than electric resistance heating.

For building water and air heating and cooling, J&D propose using air - and ground - source heat - pump water and air heaters and electric resistance water and air heaters.

The resulting electronic skin recognizes pokes and prods as changes in electric resistance.

Additional contributing factors include atypical pipe properties, such as extremely low impact toughness and elongation properties across the ERW [electric resistance welded] seam.

2.5 kwh electric resistance coil in supply air ducts of ventilation system backing up Sanden CO2 refrigerant heat pump water heater emitting space heat via Runtal vertical radiator in main room (replaced high - efficiency (92 %) condensing gas furnace)

According to Chevy, the system is even smart enough to know the difference between a battery in a low state of charge and a high electric resistance — something that could point to a failing battery.

Electricity - powered air - and ground - source heat pumps, geothermal heat pumps, heat exchangers and backup electric resistance heaters would replace natural gas and oil for home heating and air - conditioning.

One addresses opportunities to replace electric resistance heat with heat pumps and the other addresses replacing gas furnaces with heat pumps.

A typical new heat pump in the United States is on average roughly twice as efficient as electric resistance heat, although performance varies with climate.

During periods of high hot water demand, HPWHs actually switch to standard electric resistance heat — which is why they are often referred to as «hybrid» electric water heaters.

Electric resistance welded pipe like that which tore open beneath Mayflower has welding along its spine that is particularly vulnerable to rupture.

There were no big mechanical rooms filled fancy heat pumps; Passive House buildings are so well insulated that all they need is a teensy bit of electric resistance heat that will probably never get turned on.

It is an effect that causes great changes to the electric resistance of fine multi-layer materials and has led to the development of components as varied as the reader heads on hard disks or the sensors in airbags.

For our analysis of converting homes with electric resistance heat to heat pumps, we used data on space heating energy use in a representative sample of nearly 2,000 homes in RECS now using electric resistance heat.