The system has a secondary heat exchanger for exchanging hot water from a boiler. The boiler is attached with a heat pump (2) via a hydraulic manifold (11). An output of the hydraulic manifold supplies the heat from a heating circuit (10) to the heat pump. An additional primary heat ...
[31]. The water consumption during the domestic hot water service was also neglected since it is attributable to consumer behavior and not a function of the heating device. Fig. 1 shows a simplified flow chart of the three product systems (boiler, gas heat pump, and electric heat pump). ...
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The heating water can also circulate through a gas fired boiler. Its flow is controlled by the valves so that the heat pump using vitiated air is used alone in mild conditions and the gas boiler is added in severe conditions only. The flue gases of the boiler are added to the air blown...
The heating system (1) is particularly for domestic room heating or the production of hot water. The heat losses dissipated to the environment from a conventionally-fired boiler are collected by the primary air fed to a heat pump. The firing equipment for the boiler can be inside a housing ...
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Such systems are based on the principle of connecting in series the existing hot water system with new upstream solar storage, and using the existing hot water boiler as a backup heater [20]. However, such concepts still require the installation of, in principle, a complete new conventional ...
Bachmann et al., 2019 conducted the LCA of residential fuel cell micro heat and power cogeneration (FC-µCHPs) and compared it with a stand-alone gas condensing boiler (GCB) and a heat pump (HP) [17]. For the assumed full loading hours (FLHs), relevant environmental impacts, including...
Boiler and heat pump operations have been shown to belong to three categories: daytime, bimodal and continuous [55] (Figure 8). The distribution of these varies by technology (with heat pumps three times as likely to operate in continuous mode) so these profiles were assigned to each property...