Experimental analysis of microcogenerators based on different prime movers

Roselli, Carlo; Sasso, Maurizio; Sibilio, Sergio; Tzscheutschler, Peter

doi:10.1016/j.enbuild.2010.11.021

Cited by 72 publications

(18 citation statements)

References 11 publications

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“…ICE-based micro-CHP units are available with various rated powers; their electric efficiency can vary within 22-31%, while their thermal efficiency varies between 53% and 66%. Furthermore, the technology is able to operate under part load conditions [31]. Rosato and Sibilio examined the dynamic performance of an ICE-based cogeneration unit in [29].…”

Section: Residential Micro-chp Systemmentioning

confidence: 99%

Analyzing the optimal coordination of a residential micro-CHP system with a power sink

et al. 2015

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Section: Residential Micro-chp Systemmentioning

confidence: 99%

Analyzing the optimal coordination of a residential micro-CHP system with a power sink

et al. 2015

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“…Thermal parameters for the small ICE-mCHP unit were estimated by scaling from the large unit and efficiency data was gathered from [31]. The same model structure was used for the ASHP and SOFC-mCHP units.…”

Section: Modelling Energy Flowsmentioning

confidence: 99%

The 20% house – An integrated assessment of options for reducing net carbon emissions from existing UK houses

Rogers¹,

Cooper²,

O'Grady³

et al. 2015

Applied Energy

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“…Internal combustion engines (ICE) have long been the most established type of micro‐CHP, with applications particularly in commercial and industrial settings . Honda′s ECOWILL ICE system, for instance, was the first mass‐market micro‐CHP product, with more than 100 000 units installed in Japan . The global market for micro‐CHP is almost completely dominated by Japan and Europe, with about 230 000 systems installed thus far in Japan (85 % of the total) and 40 000 in Europe (15 %)…”

Section: Introductionmentioning

confidence: 99%

Life cycle environmental and economic sustainability of Stirling engine micro‐CHP systems

2018

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Micro‐combined heat and power (micro‐CHP) systems have gained prominence in Europe and elsewhere, often attracting government incentives. Of the various micro‐CHP technologies, Stirling engine (SE) systems are often preferred over internal combustion engines, but their economic and environmental sustainability is unclear. This study uses life cycle assessment and life cycle costing to analyze SE micro‐CHP units, comparing the results to conventional natural gas boilers and grid electricity. Assuming highly‐efficient operation (77 % thermal; 13 % electrical efficiency), the SE system is preferable to conventional electricity and heat both economically and environmentally (for nine of 11 impacts). However, at more realistic efficiencies (71 % thermal; 6 % electrical), the SE system is uncompetitive, being worse for seven environmental impacts, including global warming, and incurring 9 % higher costs, despite subsidy. The choice of electricity, heat or combined output as a functional unit greatly affects the results. At low efficiencies, per unit of electricity, the SE system has on average 44 % worse environmental performance than grid electricity. However, per unit of heat it is, on average, 30 % better environmentally than the gas boiler, but the global warming potential (GWP) is 19 % worse. For combined energy output, the SE system has on average 3 % lower impacts than conventional alternatives, but the GWP is 16 % higher. Future improvements to the environmental impacts of the electricity grid mix, including its decarbonization, would further reduce any relative benefits of the SE system, calling into question the suitability of subsidy.

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Experimental analysis of microcogenerators based on different prime movers

Cited by 72 publications

References 11 publications

Analyzing the optimal coordination of a residential micro-CHP system with a power sink

Analyzing the optimal coordination of a residential micro-CHP system with a power sink

The 20% house – An integrated assessment of options for reducing net carbon emissions from existing UK houses

Life cycle environmental and economic sustainability of Stirling engine micro‐CHP systems

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