Värmeflödesplattor

Värmeflödesplattor, known in English as heat flux plates or heat flux sensors, are devices used to measure the rate of heat transfer through a solid material. They operate on the principle that a temperature difference across a material will cause heat to flow. A typical heat flux plate consists of a thin, flat element with a known thermal conductivity and a defined surface area. Thermocouples or thermopiles are embedded within the plate, strategically placed to measure the temperature gradient across its thickness. By knowing the temperature difference across the plate, its thickness, its thermal conductivity, and its surface area, the heat flux can be calculated using Fourier's Law of Heat Conduction.

These plates are commonly used in building science to monitor heat loss or gain through walls, roofs, and windows. They are also utilized in various industrial applications for process control and performance monitoring of thermal systems. In research, heat flux plates aid in the study of material thermal properties and the efficiency of insulation. Accurate calibration is crucial for reliable measurements, and they are often integrated with data acquisition systems to record and analyze heat flow over time. The design and materials of the heat flux plate are chosen based on the specific application, considering factors like operating temperature range, environmental conditions, and the expected magnitude of heat flux.