Innovative Hybrid CHP systems for high temperature heating plant in existing buildings
Livio de Santoli (Sapienza University Roma)
Gianluigi Lo Basso (Sapienza University Roma)
Benedetto Nastasi (TU Delft - Building Physics)
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Abstract
This paper deals with the potential role of new hybrid CHP systems application providing both electricity and heat which are compatible with the building architectural and landscape limitations. In detail, three different plant layout options for high temperature heat production along with the electricity generation were investigated and compared each other. To do so, conventional natural gas CHPs and back up boiler, two-stage Electric Heat Pumps (EHPs) and trans-critical CO2 electric heat pump (CO2-HP) have been considered as reference technologies to build hybrid systems. In addition, hybrid solar collectors (PV/T) thermal output, along with the recovered low-grade heat from CHP exhaust gas, flowing to the stack, have been used as the CO2-HP low temperature driving source.
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