<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Voraggo]]></title><description><![CDATA[With over 130 years of combined international expertise in the energy sector, we provide comprehensive geothermal and innovative solutions for heating]]></description><link>https://www.voraggo.com/blog</link><generator>RSS for Node</generator><lastBuildDate>Tue, 04 Aug 2026 18:33:56 GMT</lastBuildDate><atom:link href="https://www.voraggo.com/blog-feed.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Objective Identification of the Stabilized Regime in Thermal Response Tests: A Log-Derivative Alternative to Semilog Slope Fitting]]></title><description><![CDATA[Fabrice Toussaint,MSEng., Voraggo Limited — Sofia, Bulgaria f.toussaint@voraggo.com Abstract Standard thermal response test (TRT) interpretation reads ground thermal conductivity (ks) from the slope of a straight line fitted to mean fluid temperature versus the logarithm of elapsed time, and the borehole thermal resistance (Rb) from that same fit's intercept. The method is simple, but the choice of where the straight-line segment begins is left to the analyst's judgment, and different...]]></description><link>https://www.voraggo.com/post/objective-identification-of-the-stabilized-regime-in-thermal-response-tests-a-log-derivative-altern</link><guid isPermaLink="false">6a71f89535b726342fc96e9f</guid><pubDate>Tue, 04 Aug 2026 14:39:07 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/69d9e4_aed4415d92bf4d5db281a8061eb7401f~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Nikola Sechkaryov</dc:creator></item></channel></rss>