Then, with a focus on the HVAC system, we derive essential energy factors
, for example, key energy control parameters from various energy factors
such as day, temperature, humidity, the discomfort-index, the solar irradiation index, the degree of cloudiness and the wind velocity.
Comparison of the energy factors
of tankless and storage water heaters does not provide a completely accurate prediction of the difference in energy use that would be experienced in the field.
Supply of useful heat with low primary energy factor
(fp=0,7) for several multi-family homes by setting up a network with 42 composite heat transfer stations as energy supply contracting.
The device was also tested in a similar manner to the Energy Factor
The performance consists of the delivery of heat to the Gymnasium Ottobrunn, with a Heizanschlussleistung of 1,020 kW and a total heat demand of 926,000 kWh;To be complied with is a primary energy factor
of = 0.
The official metric for the energy efficiency of residential water heaters is the Energy Factor
(EF), which imposes six regularly spaced equal magnitude draws in the first five hours, followed by an extended standby period.
According to the primary energy factor
, it is better to save cooling energy than heating one.
An analytical study is carried out to assess the impact of corrections to nominal test conditions on the measured energy factor
for residential water heaters.
is an overall efficiency rating of the gas water heater and is assumed to be 0.
Sarkar, et al  introduced an energy-efficient route between the source-destination pair then an energy consumption model was proposed to calculate the energy factor
of the nodes.
This study presumes the energy factor
is primarily determined by rock type, desired fragmentation distribution, and in-situ fracturing.
A typical gas water heater has an energy factor