{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,25]],"date-time":"2025-07-25T10:08:30Z","timestamp":1753438110641},"reference-count":16,"publisher":"EDP Sciences","license":[{"start":{"date-parts":[[2020,10,16]],"date-time":"2020-10-16T00:00:00Z","timestamp":1602806400000},"content-version":"vor","delay-in-days":289,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["E3S Web Conf."],"published-print":{"date-parts":[[2020]]},"abstract":"<jats:p>In shallow geothermal energy systems (SGES) thermal conduction can be considered the dominant process in the heat transfer between the primary circuit (borehole heat exchanger or thermoactive geostructure) and the surrounding ground. Thus, a proper characterization of soil thermal properties, namely of its thermal conductivity, is mandatory for evaluating this energy exchange. There are difficulties associated to the assessment of soil thermal conductivity by laboratory methods related, among other factors, to the samples\u2019 quality and to the measuring method itself. The purpose of this work is to analyse the effect of changing test control parameters in thermal conductivity measurements in transient conditions by means of a high accuracy thermal probe in both dry and fully saturated states. In order to eliminate potential measurements\u2019 deviations and errors due to sample variability the same reconstituted samples were used several times. In each condition the sand samples were systematically tested under different ambient temperatures (10\u00baC, 20\u00baC, and 40\u00baC) controlled by means of a climatic chamber. The effects of changing the tests heating time and imposed thermal fluxes were also analysed.<\/jats:p>","DOI":"10.1051\/e3sconf\/202019504007","type":"journal-article","created":{"date-parts":[[2020,10,16]],"date-time":"2020-10-16T10:10:49Z","timestamp":1602843049000},"page":"04007","source":"Crossref","is-referenced-by-count":1,"title":["Effects of temperature, test duration and heat flux in thermal conductivity measurements under transient conditions in dry and fully saturated states"],"prefix":"10.1051","volume":"195","author":[{"given":"K.","family":"Aljundi","sequence":"first","affiliation":[]},{"given":"A.","family":"Vieira","sequence":"additional","affiliation":[]},{"given":"J.","family":"Maranha","sequence":"additional","affiliation":[]},{"given":"J.","family":"Lapa","sequence":"additional","affiliation":[]},{"given":"R.","family":"Cardoso","sequence":"additional","affiliation":[]}],"member":"250","published-online":{"date-parts":[[2020,10,16]]},"reference":[{"key":"R1","unstructured":"OECD. 2011. Green Growth Studies, OECD Publishing. ISBN 978-92-64-11510-1. Available at: https:\/\/www.oecd.org\/greengrowth\/greening-energy\/49157219.pdf"},{"key":"R2","doi-asserted-by":"crossref","unstructured":"Rybach L., Shallow Systems. 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Available at: http:\/\/www.hukseflux.com"},{"key":"R16","unstructured":"ASTM D 4253-00, Standard Test Methods for Maximum Index Density and Unit Weight of Soils of soils Using a Vibratory Table."}],"container-title":["E3S Web of Conferences"],"original-title":[],"link":[{"URL":"https:\/\/www.e3s-conferences.org\/10.1051\/e3sconf\/202019504007\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,9]],"date-time":"2023-10-09T22:13:20Z","timestamp":1696889600000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.e3s-conferences.org\/10.1051\/e3sconf\/202019504007"}},"subtitle":[],"editor":[{"given":"R.","family":"Cardoso","sequence":"first","affiliation":[]},{"given":"C.","family":"Jommi","sequence":"additional","affiliation":[]},{"given":"E.","family":"Romero","sequence":"additional","affiliation":[]}],"short-title":[],"issued":{"date-parts":[[2020]]},"references-count":16,"alternative-id":["e3sconf_e-unsat2020_04007"],"URL":"https:\/\/doi.org\/10.1051\/e3sconf\/202019504007","relation":{},"ISSN":["2267-1242"],"issn-type":[{"value":"2267-1242","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020]]}}}