Evaluation of heat value of biodiesels produced from solar collector-biofuel hybrid system by dielectric spectroscopy techniques

Document Type : Original Article

Authors

1 Energy Systems Engineering, New Technologies, Iran University of Science and Technology, Tehran, Iran

2 Iran University of Technology

3 Department of Agricultural Engineering and Technology, University of Tehran

10.22034/jfnc.2019.92926

Abstract

The properties of the biodiesel will be changed by changing the reaction parameters of biodiesel production from vegetable oils that heating value is one of important of them. The aim of this study is to evaluate a new system in order to detect changes in the properties of biodiesel, such as heating value by dielectric spectroscopy with the capacitive sensor. Transesterified palm-based biofuels were synthesized in different weather conditions using the heat loss of a linear parabolic trough solar collector power. At first, a sample of biodiesel was produced with optimized parameters as the basis of evaluation. Then, five samples of biodiesel with the same optimized parameters but with different temperatures were produced by the solar collector as one of the renewable energy systems. After that, the samples were placed in the device and information obtained by dielectric spectroscopy was transferred to software. In order to validate the analysis, some algorithms from the decision tree technique were used. According to the results, the Classification and Regression Tree (CART) algorithm had the highest accuracy (99%) in comparison with others. According to the accuracy of algorithms, it was deduced that the chosen techniques had good potential to determine biodiesel fuel properties.

Keywords

References

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History

  • Receive Date: 05 November 2018
  • Revise Date: 22 December 2018
  • Accept Date: 13 January 2019

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