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Supplying Passive Houses with sustainable energy

7 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

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

4 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... ation situations. * The systems are already economically competitive with conventional hot water sy... 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

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)