Defining the level of human comfort in the office environment by thermal factor

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Authors:


I.M.Cheberiachko, orcid.org/0000-0002-6193-5729, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.V.Stolbchenko, orcid.org/0000-0003-2003-4382, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.A.Yurchenko, orcid.org/0000-0002-4998-2047, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

I.O.Luts, orcid.org/0000-0003-0333-5730, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2022, (1): 069 - 075

https://doi.org/10.33271/nvngu/2022-1/069



Abstract:



Purpose.
To analyse the process of heat exchange between the man and the environment, including production areas, as well as to develop and study the criterion of workplace comfort by the thermal factor.

To achieve this goal, the following tasks are to be solved:

- to consider the characteristics of the microclimate in the workplace, including that of office space using information technologies;

- to develop a mathematical model of heat exchange between the human body and the environment;

- to develop a criterion for the efficiency of functioning of microclimate normalization systems in the workplace.


Methodology.
To perform the tasks in the work, an analysis of the literature and sanitary and hygienic documentation on the specified problem is performed; analytical method is applied for studying the comfort of the sanitary and hygienic condition of the indoor air using a mathematical model of heat exchange between workers and the environment.


Findings.
Based on the theoretical analysis, the criterion of microclimate comfort is obtained, which differs from the known ones in that it takes into account all types of heat transfer from the human body to the environment depending on the nature and intensity of human activity, allows estimating the total value of heat flow depending on the environmental condition with fair accuracy for the practical purposes and can be used to substantiate the efficiency of methods and means of normalizing the microclimate when performing work using information technologies.


Originality.
A mathematical model of heat transfer in the man environment system is developed and theoretically substantiated. The criterion of microclimate comfort at workplaces is offered and mathematical relation to calculate it is obtained.


Practical value.
The results of calculations of the comfort criterion in the workplace can be used when developing tools and methods for normalizing the microclimate in the workplace and assessing the effectiveness of their implementation.



Keywords:
microclimate, heat exchange, mathematical model, comfort criterion

References.


1. Sukach, S., Kozlovska, T., Serhiienko, I., Khodakovskyy, O., Liashok, I., & Kipko, O. (2018). Studying and substantiation of the method for normalization of airionic regime at industrial premises at the ultrasonic ionization of air. Eastern-European Journal of Enterprise Technologies, 4(10(94), 36-45. https://doi.org/10.15587/1729-4061.2018.141060.

2. Ergonomics of the thermal environment. Analytical definition and interpretation of thermal comfort based on calculations of PMV and PPD indicators and local thermal comfort criteria (EN ISO 7730:2005, IDT): EN ISO 7730:2011) (2012). yiv: Minrehion Ukrainy. Retrieved from http://ksv.do.am/GOST/DSTY_ALL/DSTY3/dsty_b_en_iso_7730-2011.pdf.

3. Sukach, S., Kozlovskaya, T., Serhiienko, I., Glyva, V., Vovna, O., & Laktionov, I. (2019). Research and formation of qualitative hydro air ion composition in agricultural premises. Bulgarian Journal of Agricultural Science, 25(2), 256-263.

4. Cheberiachko, S., Yavorska, O., Cheberiachko, Y., & Yavorskyi, A. (2018). Analysis of pressure difference changes in respirator filters while dusting. E3S Web of Conferences, 60, 00012. https://doi.org/10.1051/e3sconf/20186000012.

5. Kochetov, O.S. (2013). Method for multi-criteria assessment of the comfort of the working area of industrial premises. (Russian Federation Patent No. 2472134).

6. Lampika, T.V., & Pavlychenko, A.V. (2019). Environmental control and assessment of ecological status of Ukraine. Journal of International Scientific Publications: Ecology and Safety, 13, 127-135. Retrieved from https://www.scientific-publications.net/get/1000035/1564696967425338.pdf.

7. Bukhmirov, V.V., & Prorokova, M.V. (2015). Assessment of the microclimate in residential, public and office buildings. Vestnik IGEU, (4), 5-10. Retrieved from http://vestnik.ispu.ru/sites/vestnik.ispu.ru/files/published/4-15_str._5-10.pdf.

8. Zhu, H., Wang, H., Liu, Z., Li, D., Kou, G., & Li, C. (2018). Experimental study on the human thermal comfort based on the heart rate variability (HRV) analysis under different environments. Science of The Total Environment, 616-617, 1124-1133. https://doi.org/10.1016/j.scitotenv.2017.10.208.

9. State building standards of Ukraine (n.d.). State building standards B.2.5-67:2013 Heating, ventilation and air conditioning. Retrieved from https://dbn.co.ua/.

10. Tereshchenko, P.S. (2013). Physiological and hygienic assessment of the microclimate parameters of modern offices. Journal of the national academy of medical sciences of Ukraine. Supplement (Theses), 2013, 133-134.

 

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ISSN (print) 2071-2227,
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Journal was registered by Ministry of Justice of Ukraine.
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