Impact of Environmental Factors on Indoor Air Temperature in Gas-Fired Radiant Heated Cultivated Structures

¹ Associate professor, Department of Heat, Gas and Water Supply, Vologda State University, Vologda, Russian Federation
² Research Engineer, Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
³ Applicant, senior lecturer of the department of Heat, Gas and Water Supply, Vologda State University, Vologda, Russian Federation
⁴ Peter the Great St. Petersburg Polytechnic University, Saint Petersburg 195251, Russian Federation
⁵ Lovely Professional University, Phagwara, Punjab, India
⁶ Department of EEE, GRIET, Bachupally, Hyderabad, Telangana, India
⁷ Uttaranchal University, Dehradun 248007, India
⁸ Centre of Research Impact and Outcome, Chitkara University, Rajpura 140417, Punjab, India
⁹ Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh - 174103 India

^* Corresponding author: sauravarambol@gmail.com
Scopus ID: 57204361039 pavlovmv@vogu35.ru; pavlov_kaftgv@mail.ru
Scopus ID: 58675942000 vafaeva.khm@gmail.com
Scopus ID: 57210325021 karpovdf@vogu35.ru; karpov_denis_85@mail.ru
prasanth.mtechpe@gmail.com
abhishekjoshi@uumail.in
rahul.mishra.orp@chitkara.edu.in
manvinder.brar.orp@chitkara.edu.in

Abstract

Ensuring the required microclimate parameters of a cultivation structure, including indoor air temperature, relative humidity, and soil surface temperature, plays a crucial role in obtaining a rich harvest of vegetables and fruits in the winter season. Creating favourable conditions for growing plants in the protected ground is possible only by using modern, high-tech heating systems that will compensate for heat energy losses and maintain a set temperature regime in the room. Gas-fired radiant heating is one such system. This heating method, using ceiling gas infrared emitters as heat sources, directs the required heat flux directly to the soil surface. At the same time, direct or indirect emissions of harmful substances into the environment are minimal, and due to the absence of heat losses during heat production and heat carrier transportation, this type of heating is effective from both energy-saving and economic points of view. The article investigates the influence of meteorological, aerodynamic, heat engineering, and other factors on the air temperature in a cultivation structure under gas-fired radiant heating conditions using a developed software calculation method. An analysis is performed, and explanations are given for the nature of the change in indoor air temperature depending on the changing environmental conditions—the example of the industrial greenhouse “Farmer 7.5” (Russian Federation).