Indexed by:Journal Papers

Date of Publication:2015-08-01

Journal:REVIEW OF SCIENTIFIC INSTRUMENTS

Included Journals:Scopus、PubMed、EI、SCIE

Volume:86

Issue:8

Page Number:085110

ISSN:0034-6748

Abstract:An experimental apparatus was developed to synthesize natural gas hydrates and measure the thermal conductivity of hydrate-bearing sediments in situ. The apparatus works over a temperature range varying from -20 degrees C to 50 degrees C and up to a maximum pressure of 20 MPa. This apparatus is mainly composed of a thermal conductivity test system and a reaction cell, into which a lab-fabricated thermistor probe is inserted. This thermistor has excellent temperature sensitivity and can work at high pressures. The basic principles of this apparatus are discussed, and a series of experiments were performed to verify that the apparatus can be practically applied in chemical engineering. The thermistor-based measuring method was applied successfully in a high-pressure environment both with and without porous media. (C) 2015 AIP Publishing LLC.