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Influence of Measurement Uncertainties on the Thermal Environment Assessment

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Abstract

ISO 7726 standard describes both the measurement techniques and the related metrological performances of instruments required for the assessment of the thermal environment. Unfortunately, the calculation of required discomfort and stress indices rarely takes into account the evaluation of single measurement uncertainties and their effect on the thermal environment assessment. To assess the uncertainty in the determination of predicted mean vote and the predicted percentage of dissatisfied indices, required by ISO 7730 for the verification of the environment conformity, typical uncertainties in the measurement of both physical (the air temperature, the mean radiant temperature, the air velocity, and the relative humidity) and subjective parameters are calculated. In order to verify the conformance of comfort indices measured by means of different measurement techniques and devices, some experimental tests in three typical environments have been carried out: (i) residential, (ii) office, and (iii) industrial. To highlight both the compatibility of measurement and the suitability, tests were carried out using three special comfort-analysis data-loggers, each provided with different sensors characterized by different instrumental uncertainties.

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Authors and Affiliations

  1. Dipartimento di Meccanica, Strutture, Ambiente e Territorio (DIMSAT), Università di Cassino, Via G. Di Biasio, 43, 03043, Cassino, FR, Italy

    M. Dell’Isola & A. Frattolillo

  2. Dipartimento di Energetica, Termofluidodinamica Applicata e Condizionamenti Ambientali (DETEC), Università degli Studi di Napoli Federico II, Naples, Italy

    B. I. Palella & G. Riccio

Authors
  1. M. Dell’Isola
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  2. A. Frattolillo
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  3. B. I. Palella
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  4. G. Riccio
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Correspondence to A. Frattolillo.

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Dell’Isola, M., Frattolillo, A., Palella, B.I. et al. Influence of Measurement Uncertainties on the Thermal Environment Assessment. Int J Thermophys 33, 1616–1632 (2012). https://doi.org/10.1007/s10765-012-1228-7

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  • DOI: https://doi.org/10.1007/s10765-012-1228-7

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