Akdağmadeni (Yozgat) yeraltı kurşun-çinko işletmesinde kayaçların ısıl iletkenliğinin bazı fiziksel özelliklere bağlı olarak değişimi

Year 2021, Volume: 13 Issue: 1, 1 - 13, 30.04.2021

Yavuz Selim Durutürk , Gökhan Erol

Abstract

Kayaçların ısıl iletkenlikleri çeşitli faktörlere bağlı olarak farklılıklar göstermektedir. Bu çalışmada kayaçların ısıl iletkenliğinde etkili olan faktörlerin ayrıntılı olarak incelenmesi amaçlanmıştır. Bu amaçla; kayaçlarda değişik koşullarda ısıl iletkenlik ölçümleri gerçekleştirilmiş ve ısı iletim katsayısının kayaçların gözeneklilik, su emme katsayısı, yoğunluk, kılcal su emme katsayısı, ultrasonik hız ve sıcaklığa bağlı olarak değişimleri incelenmiştir. Sonuç olarak; sıcaklık, görünür ve gerçek yoğunluk, su emme katsayısı, kılcal su emme katsayısı ve P-dalga hızı arttıkça ısı iletim katsayısı artmakta, gözeneklilik arttıkça azalmaktadır. Bütün numunelerde sıcaklık artışına bağlı olarak ısı iletim katsayıları %5-%12 arasında değişen oranlarda artmıştır. Korelasyon katsayısının en yüksek (0,993, K2E) ve en düşük (0,853, K2B) değerleri nemli numunelerde elde edilmiştir. Kayaçların ısıl iletkenliği ile fiziksel özellikleri arasında kesin ilişkiler vardır ve bu ilişkilerde korelasyon katsayısı sıcaklık hariç 0,57-0,93 aralığında değişmektedir.

Keywords

Isıl İletkenlik, Isı iletim katsayısı, kayaçların fiziksel özellikleri

Supporting Institution

Cumhuriyet Üniversitesi BAP

Project Number

M-554

Variation of thermal conductivity of rocks depending on some physical properties in akdağmadeni (Yozgat) underground lead-zinc mine

Abstract

The thermal conductivity of rocks varies depending on various factors. In this study, it is aimed to examine the factors affecting the thermal conductivity of rocks in detail. For this purpose; thermal conductivity measurements were carried out in different conditions in rocks and changes in thermal conductivity coefficient depending on porosity, water absorption coefficient, density, capillary water absorption coefficient, ultrasonic velocity and temperature were investigated. As a result; as temperature, apparent and true density, water absorption coefficient, capillary water absorption coefficient and P-wave velocity increase, thermal conductivity coefficient increases and decrease with increasing porosity. İn all samples, thermal conductivity coefficient increased between 5-12% depending on the temperature increase. The highest (0,993, K2E) and lowest (0,853, K2B) values of the correlation coefficient were obtained in moist samples. There are definite relationships between thermal conductivity and physical properties of rocks and the correlation coefficient in these relationships varies between 0,57-0,93 except temperature.

Keywords

Thermal conductivity, Heat conduction coefficient, Physical properties of rocks

Project Number

M-554

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