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Journal: Bulletin of Prydniprovs'ka State Academy of Civil Engineering and Architecture (Vol.2015, No. 7)

Publication Date:

Authors : ; ; ;

Page : 98-104

Keywords : sensor; measurement range; heat radiation; heat flux radiometer; heating temperature.;

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The data of the Ministry of Health and the International Labour Organization indicate that mortality from injuries and occupational diseases in the world ranked third after cardiovascular diseases and cancer. As of 2014 in Ukraine, more than 3,4 million persons are working in conditions that do not meet sanitary standards. Especially difficult are the conditions at work associated with the release or use of heat sources. Workers at the enterprises of the construction industry (production of bricks, glass, polymers) are exposed to influence of high temperature. Purpose. Justification of the use of means for measuring thermal radiation in the workplace. Conclusion. It was found that the existing instruments of domestic and foreign production does not allow us to investigate working conditions at the workplace of hot productions due to a significant range of thermal radiation from 50 to 24,000 W/m2, which makes a significant error in the measurement. For the first time, it found that the measurement of both small and large heat flows low limit and highly sensitive sensors must be used, thus, dosing time of heat flow access. It was disclosed regularities of changes in the reflectivity of the material type and length of the radiation spectrum. Based on conducted researches of the excess thermal radiation intensity at workplaces of hot productions and steady temperature of the heating surface, it was identified distribution of maximum wavelength of the infrared radiation, supported by law of Golitsyn-Vin. It was proposed rapid method for assessing the reflectivity of materials, which allows to receive information at an early stage of research and development of protective equipment from infrared radiation. Stand for research reflection and transmittance of materials in response to changing the angle of incidence of the radiation, surface condition and its polarizing ability is improved, the error in this case, does not exceed 5 to 7%. New approach in the creation of effective protective measures, taking into account the spectral component of the infrared radiation is suggested. On the basis of the first conducted researches, this measurement technique allows to estimate the impact on the workplace, not only primary, but also secondary sources of radiation. Based on the analysis of existing domestic sensors to measure the intensity of the heat flows, the choice of sensors and study their characteristics, taking into account their influence on the temperature component, is made.

Last modified: 2015-11-02 22:14:24