Automotive cabin thermal management is a key factor in passenger comfort, HVAC efficiency, and cold-weather vehicle performance. Heat loss through cabin components such as the windshield, side windows, roof, doors, floor, and sunroof can increase heating demand and reduce overall energy efficiency. The EKO HF-01S heat flux sensor enables direct measurement of heat transfer through these interior surfaces, providing engineers with real-world data on cabin heat loss under actual driving conditions. By installing HF-01S sensors on selected cabin surfaces, manufacturers can observe how heating operation, outdoor temperature, vehicle speed, and cabin conditions affect thermal behavior. The measured heat flux data helps identify areas with higher thermal losses, weak insulation zones, and differences between cabin components. In vehicle testing, the windshield showed the highest heat loss, while other surfaces such as the roof, window, door, and floor demonstrated different insulation performance levels. When combined with cabin and outdoor temperature measurements, HF-01S heat flux data can also be used to estimate component-level U-values. This allows engineers to compare the thermal performance of individual cabin parts and evaluate their contribution to total cabin heat loss. The results support improved insulation design, optimized HVAC control, reduced energy consumption, and enhanced thermal comfort in both conventional and electric vehicles.
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How it works
