Indigenous heat flux differential scanning calorimeter (HF-DSC)

Abstract

As part of the programme to develop low-cost instruments for use in educational institutions, we have developed a heat-flux differential scanning calorimeter (HF-DSC). We have used low cost components for building the parts of the calorimeter and they were fabricated by the local industries. The paper describes the design and construction of the calorimeter and measurement electronics in detail. The calorimeter was calibrated for temperature and enthalpy measurements using high purity metal standards. The results indicate that the on-set temperatures of thermal events can be measured with an accuracy of ± 0.7 °C and the enthalpy values within ± 3%. The sensitivity of the instrument is about 4 to 5 times lower than that obtained in a typical commercial DSC unit.

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Acknowledgements

We gratefully acknowledge the Department of Science and Technology (DST), New Delhi for providing financial support to take up the research activities on development of the indigenous differential scanning calorimeter (project number : IDP/IND/01/2015). We acknowledge the authorities of SCSVMV Deemed University for the encouragement and support by providing all infrastructural facilities throughout the period of the activity. We thank Shri. K.C. Srinivas, ex-Director of SJCAR, SCSVMV who had initiated this project, for his valuable contributions. The support by Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam, Tamil Nadu for the development of thermopile sensors and for providing high purity metal standards is greatly acknowledged.

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Correspondence to Venkatramanan Kannan.

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Gnanasekaran, T., Parthasarathy, R., Kumar, S.S. et al. Indigenous heat flux differential scanning calorimeter (HF-DSC). CSIT 9, 49–57 (2021). https://doi.org/10.1007/s40012-020-00321-4

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Keywords

  • Calorimetry
  • Enthalpy
  • Heat-flux
  • Thermal analysis
  • Thermopile