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Moisture and Temperature Response of Structural and Lithology based Thermophysical and Energy Saving Traits of Limestone using Experimental and Least-Square Fitting Methods

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Journal of Thermal Science 2021年第2期30卷 551-561页

作者： Farah Anjum Muhammad Yasin Naz Abdul Ghaffar shazia shukrullah Nasser M AbdEl-Salam Khalid Aref Ibrahim Department of Physics University of AgricultureFaisalabad 38040Pakistan Arriyadh Community College King Saud UniversityArriyadh 11437Saudi Arabia College of Engineering Muzahimiyah BranchKing Saud UniversityRiyadh 11451Saudi Arabia Department of Physics College of Arts and SciencesUniversity of JhangJhang 35200Pakistan

Thermophysical analysis of the crustal rocks is important for heat transfer determination and insulation purposes to save energy in *** the presented work,thermophysical properties of four limestones were investigated in dry and moist state under ambient conditions by using a transient plane source method.A thermal constant analyzer was used to raise the sample temperature and to measure the thermal properties in the temperature range of 300 K to 433 *** conductivity and diffusivity were measured by developing a linear relationship between temperature response of TPS (transient plane source) sensor and dimensionless time function through least-square fitting *** experimental observations and predicted thermal conductivity of samples have shown that in-situ observations are important to determine the thermal properties *** effect of temperature on thermal properties of limestone was defined by considering the chemical composition of the samples and associated heat transfer *** thermal conductivity and diffusivity of limestone decreased while specific heat capacity increased with a rise in *** overall findings indicate that the spinoff of this research is useful in studying the reliance of thermophysical properties of rocks on their structures and lithology.

关键词： limestone thermophysical properties transient plane source(TPS) thermal conductivity

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