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gSKIN® Heat Flux Sensors

greenTEG develops and markets heat flux sensors. These are small, have a high sensitivity, can be easily integrated into the application setups, measure heat flux going into and out of the setup and have a quick response time (under one second). Furthermore, they can determine heat transfer coefficients.  
Technical Overview
The gSKIN® sensors can have the following applications:

General heat flux measurement

Understanding the thermal environment is of great importance. For example, gSKIN® sensors can support you with understanding the thermal influences affecting the setup (e.g. heat deforming sample holders), or reviewing the thermal output of processes (e.g. heat output from a chemical reaction). Although in many applications temperature sensors are sufficient in establishing an accurate understanding of the thermal environment, in some cases a deeper insight into the thermal processes is required. Heat flux measurements can provide the needed data.

Core Body Temperature measurement

gSKIN® Heat Flux sensors, small sensors with high sensitivity, are easily integrated into a variety of core body measurement applications. The gSKIN® Heat Flux sensors are non-invasive and provide a fast measurement of the core body temperature. Core body applications include monitoring athletic performance, medical applications and people exposed to high temperature environment (firefighters, etc.).

U-value measurement/ Building Physics

In the field of building physics, U-value is the term used to describe the heat transfer coefficient of a building element (e.g. of a wall). The U-Value describes the insulation quality of a building. The unit is W/(m²K). The smaller the U-Value, the better the insulation quality of the building element. greenTEG’s measurement-approach uses a Heat Flux Sensor and two temperature sensors. This approach is standardized in ISO 9869, ASTM C1046 and ASTM C1155. This is the only method which delivers reliable quantitative in-situ information about a building envelope. Please find more details on greenTEG’s U-value website.

Battery calorimetry

Batteries produce heat during the charging and discharging phases. Knowing the amount of this heat is of great importance for battery safety, research, and control. That is why calorimetric measurements on batteries are common. However, standard battery calorimeters are expensive and the experiments are time consuming. With greenTEG’s Heat Flux Sensors, calorimetric measurements become affordable and feasible for any system and application.

Phase-Change-Materials (PCM)

Heat flux is important to measure for the understanding and optimization of PCMs and other thermal storage materials. Nowadays, PCMs are efficiently characterized through the powerful method of Differential Scanning Calorimetry (DSC). However, the characteristics of the PCM itself in the specific application can be different. For optimal integration, in the application the characteristics need to be known. With greenTEG’s Heat Flux Sensors, calorimetric measurements directly at the application become feasible.

Other Application areas

Other application areas are: Textile, Core Body Temperature, Precise Instrumentation, Solar Measurement, Calorimetry, Mass Flow, Fouling Detection.

gSKIN Heat Flux Sensors Literature Overview