철도차량 복사 난방용 발열 바닥 상판 개발 및 실물시제 성능 평가

초록

The convection heating system commonly used in public transportation such as railroad cars presents drawbacks such as indoor temperature disparities and the creation of a respiratory-vulnerable atmosphere due to forced air circulation and dry heat. Recently, the vulnerabilities, including viral transmission in indoor air, have been accentuated due to the spread and increased risk of respiratory infectious diseases. Overseas, efforts to improve indoor air quality by applying radiant heating, such as heating flooring materials, to railroad cars are actively pursued through research and product development. However, domestic research and commercialization efforts in this regard are inadequate. Therefore, this study aimed to develop heating flooring materials for domestic railroad cars by identifying optimal factors considering both heating and durability performance and validating their effectiveness and applicability through performance experiments. Specifically, excellent heating performance and uniformity were confirmed even at high temperatures of 80°C through heating tests. The durability performance under various conditions relevant to railroad car applications, such as temperature fluctuations and passenger traffic-induced load pressures, was also demonstrated. Additionally, the study validated the industrial applicability through the production and performance verification of railroad car heating flooring materials on a real prototype scale.