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Buildings 2016, 6(4), 44;

Steady-State Thermal Properties of Rectangular Straw-Bales (RSB) for Building

Department of Agricultural, Food and Forestry Systems (GESAAF)—Via San Bonaventura 13, 50145 Florence, Italy
Author to whom correspondence should be addressed.
Academic Editor: Adrian Pitts
Received: 8 July 2016 / Revised: 29 September 2016 / Accepted: 11 October 2016 / Published: 18 October 2016
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Straw is an inevitable product of cereal production and is available in huge quantities in the world. In order to use straw-bales as a building material, the characteristic values of the thermal performances should be determined. To not lose the benefits of the cheapness and sustainability of the material, the characteristics must be determined with simple and inexpensive means and procedures. This research aims to implement tools and methods focused at the determination of the thermal properties of straw-bales. For this study, the guidelines dictated by ASTM and ISO were followed. A measurement system consisting of a Metering Chamber (MC) was realized. The MC was placed inside a Climate Chamber (CC). During the test, a known quantity of energy is introduced inside MC. When the steady-state is reached, all the energy put into MC passes through its walls in CC, where it is absorbed by the air-conditioner. A series of thermopiles detect the temperature of the surfaces of the measurement system and of the specimen. Determining the amount of energy transmitted by the various parts of MC and by the specimen, it is possible to apply Fourier’s law to calculate the thermal conductivity of the specimen. View Full-Text
Keywords: straw-bale; thermal conductivity; sustainability; building straw-bale; thermal conductivity; sustainability; building

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Conti, L.; Barbari, M.; Monti, M. Steady-State Thermal Properties of Rectangular Straw-Bales (RSB) for Building. Buildings 2016, 6, 44.

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