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Energies 2012, 5(6), 1864-1880; doi:10.3390/en5061864
Article

On the Evaluation of Solar Greenhouse Efficiency in Building Simulation during the Heating Period

1,* , 1
 and 2
Received: 15 May 2012; in revised form: 4 June 2012 / Accepted: 8 June 2012 / Published: 15 June 2012
(This article belongs to the Special Issue Solar Energy Systems and Materials)
Download PDF [1202 KB, uploaded 15 June 2012]
Abstract: Among solar passive systems integrated in buildings, sunspaces or solar greenhouses represent a very interesting solution. A sunspace is a closed, southbound volume, constituted by transparent surfaces, adjacent to a building, which reduces winter energy demand thanks to the use of solar gains. The effect of a typical solar greenhouse on the energy balance of a building was evaluated during the heating period with two stationary procedures (Method 5000 and EN ISO 13790) and with a dynamic tool (TRNSYS). After the analysis of the greenhouse alone, the behavior of an entire house was simulated; a flat equipped with a sunspace, recently built thanks to public contributions provided by the Umbria Region in Italy to widespread bio-climatic architecture, was used as case-study. Simulations were carried out for the examined flat, both with a steady-state tool and with a dynamic one; the contribution of the sunspace was estimated thanks to the various methods previously mentioned. Finally, the simulated data were satisfactorily compared with the real energy consumptions (natural gas for heating) of the flat; the sunspace allows a reduction of winter energy demand of the flat of about 20%.
Keywords: solar greenhouse; solar gains; building envelope; steady-state simulation; dynamic simulation solar greenhouse; solar gains; building envelope; steady-state simulation; dynamic simulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Asdrubali, F.; Cotana, F.; Messineo, A. On the Evaluation of Solar Greenhouse Efficiency in Building Simulation during the Heating Period. Energies 2012, 5, 1864-1880.

AMA Style

Asdrubali F, Cotana F, Messineo A. On the Evaluation of Solar Greenhouse Efficiency in Building Simulation during the Heating Period. Energies. 2012; 5(6):1864-1880.

Chicago/Turabian Style

Asdrubali, Francesco; Cotana, Franco; Messineo, Antonio. 2012. "On the Evaluation of Solar Greenhouse Efficiency in Building Simulation during the Heating Period." Energies 5, no. 6: 1864-1880.


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