The HVAC system engineering method for a new family of unified cabins of combine harvesters
- Authors: Maslensky V.V.1, Bulygin Y.I.1, Pavlikov A.V.1
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Affiliations:
- Don State Technical University
- Issue: Vol 91, No 4 (2024)
- Pages: 466-477
- Section: Quality, reliability
- URL: https://journals.rcsi.science/0321-4443/article/view/269914
- DOI: https://doi.org/10.17816/0321-4443-626787
- ID: 269914
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Abstract
BACKGROUND: Designing a combine harvester cabin climate system is a complex and multi-stage process that includes solving a set of tasks. To solve them, a design engineer must have knowledge and skills in various fields, starting with thermal engineering calculations and ending with experimental research methods and computer modeling, which requires a large amount of intellectual and time resources. Therefore, the task of creating a unified method of engineering of combine harvester cabin HVAC system is highly relevant.
AIM: Development of the HVAC system for a unified cabin of a grain harvester and a forage harvester. The designed HVAC system is purposed to create a comfortable microclimate in the cabin of the combine for 2 people in summer and winter operating conditions.
METHODS: The methodology of calculation and selection of the combine harvester cabin HVAC system, which includes the development of engineering calculation methods and mathematical modeling of thermodynamic and ventilation processes in the cabin, is considered.
RESULTS: The main parameters were determined: heat intakes and heat losses for the grain harvester and forage harvester cabins, which amounted to 2.8 and 2.2 kW for the grain harvester, 2.9 and 2.35 kW for the forage harvester; the required air flow rate supplied to the cabin to ensure a comfortable temperature — 740 m3/h; the percentage of air recirculation regarding the conditions of absence of fogging and creation of excessive pressure in the cabin — 75%; the cooling and heating capacity of the HVAC system, taking into account the operating conditions of the combine, are 7.8 and 6.3 kW respectively. The selection of the main equipment of the HVAC system for a unified cabin for a new family of unified cabins of combines — the BUHLER 1000 MFWD evaporator-heater and the Valeo TM16 compressor are chosen.
CONCLUSION: The HVAC system designed in accordance with the presented methodology is capable of ensuring a comfortable cabin air temperature in the range of 22–24 °C at various operating modes of the combine harvester in different regions. In addition, the HVAC system parameters eliminate fogging of the cabin windows and the penetration of dusty air inside due to the created excessive pressure.
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##article.viewOnOriginalSite##About the authors
Viktor V. Maslensky
Don State Technical University
Author for correspondence.
Email: vicleng@yandex.ru
ORCID iD: 0000-0003-4618-029X
SPIN-code: 2633-4832
Cand. Sci. (Engineering), Associate Professor of the Life Safety and Environmental Protection Department
Russian Federation, 1 Gagarin square, 344003 Rostov-on-DonYury I. Bulygin
Don State Technical University
Email: bulyur_rostov@mail.ru
ORCID iD: 0000-0003-0644-7412
SPIN-code: 3720-4160
Dr. Sci. (Engineering), Professor of the Life Safety and Environmental Protection Department
Russian Federation, 1 Gagarin square, 344003 Rostov-on-DonAlexander V. Pavlikov
Don State Technical University
Email: sanya.pavlikov@mail.ru
ORCID iD: 0000-0002-5227-9635
SPIN-code: 5847-5001
Assistant of the Life Safety and Environmental Protection Department
Russian Federation, 1 Gagarin square, 344003 Rostov-on-DonReferences
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