By a News Reporter-Staff News Editor at Energy Weekly News -- Fresh data on Thermal Engineering are presented in a new report. According to news reporting from Aversa, Italy, by VerticalNews journalists, research stated, "A dynamic performance assessment for a number of micro combined heat and power (MCHF) systems fuelled by natural gas, namely two different internal combustion engines and a reciprocating external combustion Stirling engine, was performed by using a simulation software. The cogeneration units were integrated with an Italian multi-family house compliant with the transmittance values of both walls and windows suggested by the Italian Law."
The news correspondents obtained a quote from the research from the University of Naples, "Auxiliary thermal energy was supplied by a natural gas-fired boiler and the heat provided by both the MCHP device and the boiler was accumulated within a combined storage tank. A sensitivity analysis upon varying the hot water storage volume (0.855 m(3), 0.738 m(3), 0.503 m(3)) and the set-point temperature (55 degrees C and 60 degrees C) of the water within the tank was performed. Detailed dynamic models, developed within Annex 42 of the International Energy Agency (IEA) and calibrated on the basis of experimental results, were used for carefully predicting the performance of the cogeneration devices. The simulated performance of the proposed system were compared with those of a reference system composed of a natural gas-fired boiler (for thermal energy production) and the central grid (for electricity production) in order to assess the suitability of the cogeneration device-based system in comparison to the system based on separate energy production. The comparison was performed from energy, environmental and economic point of views according to the Italian scenario. The comparison showed that, whatever the MCHP unit is, the proposed system allows for reducing the primary energy consumption (up to 13.4%), the carbon dioxide equivalent emissions (up to 18.9%), as well as the operating costs (up to 20.9%) with respect to the conventional system."
According to the news reporters, the research concluded: "The largest savings were obtained with the tank characterized by the lowest volume coupled with the internal combustion engines in the case of 55 degrees C was used as set-point temperature."
For more information on this research see: Energy, environmental and economic dynamic performance assessment of different micro-cogeneration systems in a residential application. Applied Thermal Engineering, 2013;59(1-2):599-617. Applied Thermal Engineering can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Applied Thermal Engineering - www.elsevier.com/wps/product/cws_home/630)
Our news journalists report that additional information may be obtained by contacting A. Rosato, University of Naples, Dept. of Architecture & Ind Design, I-81031 Aversa, CE, Italy. Additional authors for this research include S. Sibilio and G. Ciampi.
Keywords for this news article include: Italy, Aversa, Europe, Energy, Oil & Gas, Natural Gas, Thermal Engineering
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