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Advances in Energy Research, Vol. 1 pp 271–276Cite as

Estimation of Enthalpy of Formation of Metal Hydrides: Effect of Different Measurement Parameters

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Abstract

The enthalpy of formation of metal hydrides is estimated by van’t Hoff equation. Pressure-concentration isotherms (PCIs) at different temperatures are used to obtain van’t Hoff plots. Enthalpy of formation is an important input in simulation and performance estimation of metal hydride-based engineering devices. The absolute error in the measurement of enthalpy of formation depends upon the relative error of PCI measurements. The error in the estimation of this quantity depends upon the number of temperature points used for obtaining van’t Hoff plots and, temperature range and size of the range. In the present study, PCIs of MmNi3.5Co0.8Al0.7 hydride were measured in the temperature range of 20–240 ℃. The effect of number of temperature points, temperature range and size of the range on the estimation of enthalpy of formation is studied. The effect of the temperature range and size of the range are found to be more sensitive in the estimation of enthalpy of formation.

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Authors and Affiliations

  1. Discipline of Mechanical Engineering, Indian Institute of Technology Indore, Indore, 453552, India

    E. Anil Kumar & Dhananjay Mishra

  2. Department of Mechanical Engineering, Indian Institute of Technology Tirupati, Tirupati, 517506, India

    E. Anil Kumar

  3. Department of Thermal and Energy Engineering, Vellore Institute of Technology, Vellore, 632014, India

    Vinod Kumar Sharma

Authors
  1. E. Anil Kumar
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  2. Dhananjay Mishra
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  3. Vinod Kumar Sharma
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Correspondence to E. Anil Kumar .

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Editors and Affiliations

  1. Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India

    Suneet Singh

  2. Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India

    Venkatasailanathan Ramadesigan

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Anil Kumar, E., Mishra, D., Sharma, V.K. (2020). Estimation of Enthalpy of Formation of Metal Hydrides: Effect of Different Measurement Parameters. In: Singh, S., Ramadesigan, V. (eds) Advances in Energy Research, Vol. 1. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-15-2666-4_27

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  • DOI: https://doi.org/10.1007/978-981-15-2666-4_27

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-2665-7

  • Online ISBN: 978-981-15-2666-4

  • eBook Packages: EnergyEnergy (R0)

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