Assessment of the quality of the microclimate in the EKG-12K excavator cab

This research addresses critical issues within the construction and mining sectors, encompassing operator health and safety, productivity, equipment durability, and regulatory compliance. In addition, the research focuses on microclimate management, ergonomics, and technology, and can improve the safety, comfort, productivity, and sustainability of the industry. The objective of this study was to evaluate the quality of the microclimate within the EKG-12K excavator cab, specifically examining airflow, temperature, operator comfort, and safety. Using ANSYS Fluent, the microclimate was modelled under warm and cold conditions in accordance with international standards. The findings revealed deficiencies in ventilation and air conditioning. During warmer periods, the positioning of fans fails to facilitate adequate circulation of cooled air within the domain of the operator. Under colder conditions, the interaction between fans and heat curtains generates air circulation around the axle at the level of the driver’s seat. Temperature analyses demonstrated that during warm periods, the temperature ranges between 23-25°C, necessitating substantial effort from the air conditioning system. During cold periods, certain areas experience temperatures as low as 5°C, posing the risk of condensation and mould growth. Additionally, there are concerns regarding dust circulation and the potential for glass breakage owing to temperature variations. The conclusions underscore the necessity of optimising the microclimate within a cab to ensure operator comfort, safety, and excavator efficiency. The practical importance of this work lies in offering solutions to enhance the safety, comfort, productivity, and longevity of the equipment