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A New Customized Measurement System for a Non-Contact, Enhanced Thermometric Method

Author

Listed:
  • Luca Evangelisti

    (Department of Industrial, Electronic and Mechanical Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy)

  • Edoardo De Cristo

    (Department of Industrial, Electronic and Mechanical Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy)

  • Salvatore Monteleone

    (Department of Engineering, Niccolò Cusano University, Via Don Carlo Gnocchi 3, 00166 Rome, Italy)

  • Claudia Guattari

    (Department of Philosophy, Communication and Performing Arts, Roma TRE University, Via Ostiense 139, 00154 Rome, Italy)

  • Paola Gori

    (Department of Industrial, Electronic and Mechanical Engineering, Roma TRE University, Via Vito Volterra 62, 00146 Rome, Italy)

  • Ivan Pini

    (Department of Engineering, Niccolò Cusano University, Via Don Carlo Gnocchi 3, 00166 Rome, Italy)

  • Tullio de Rubeis

    (Department of Civil, Construction-Architectural and Environmental Engineering, University of L’Aquila, Piazzale Ernesto Pontieri, Monteluco di Roio, 67100 L’Aquila, Italy)

  • Dario Ambrosini

    (Department of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale Ernesto Pontieri, Monteluco di Roio, 67100 L’Aquila, Italy)

Abstract

This study introduces a novel, low-cost, non-contact measurement system for heat flux estimation based on an enhanced thermometric method. The customized system was designed and assembled to implement a non-contact, indirect approach for heat flux assessment. Developed as an affordable alternative to conventional contact-based techniques, it is suitable for historical buildings, where invasive sensors could compromise structural integrity. The system integrates real-time data acquisition, remote access via a web-based interface, and automated data processing, enhancing both usability and efficiency. Laboratory tests were conducted to evaluate its performance, with results compared against data from widely used heat flow plates and air/surface temperature sensors. The results showed good agreement between the proposed method and the reference data. Small differences were observed between the values measured by the air temperature sensors (0.10 °C on average), as well as by the contact and non-contact surface temperature sensors (0.12 °C on average). Finally, percentage variations between −6% and −5% in terms of heat fluxes confirmed the reliability of the non-contact approach. These findings provide a strong foundation for further testing, including applications in real buildings.

Suggested Citation

  • Luca Evangelisti & Edoardo De Cristo & Salvatore Monteleone & Claudia Guattari & Paola Gori & Ivan Pini & Tullio de Rubeis & Dario Ambrosini, 2025. "A New Customized Measurement System for a Non-Contact, Enhanced Thermometric Method," Energies, MDPI, vol. 18(6), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:6:p:1537-:d:1616367
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