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Supplying Passive Houses with sustainable energy

5 Hits, Last modified: 11 years ago

han or equal to zero. This simple definition does not clarify which demand is being used or whether pr... f availability, we will have to return to fossil (non-sustainable and nonrenewable) energy sources. \\ \\ For example, imagine a village with 100 homes th... cubic meters of wood can be cut for this purpose. No other renewable energy sources are available (in

Sound generation, sound dispersion and sound proofing in heat pumps @planning:building_services:heating_and_dhw:heating:heat_pumps

4 Hits, Last modified: 7 years ago

analysing potential sound paths, the cause of the noise, i.e. the excitation source, should always be ... s the primary task of manufacturers to select low-noise ventilators and compressors. Furthermore, cons... ssible. Dimensioning of the sound absorber should not only ensure that the limit values for the A-rate... 1982. (Emission parameters for technical sound sources, ventilators, VDI Handbook Noise Prevention)

Experience with drain water heat recovery @planning:building_services:heating_and_dhw:experience_with_drain_water_heat_recovery

3 Hits, Last modified: 6 years ago

mption can be decreased by 25 to 35 percent. * Not much space is needed, and a variety of systems i... ecome more common. * In bigger buildings, the nominal heat production output and storage tank size... cted to the same heat exchanger, cold showers may not be possible. * If the heat exchanger is only