Heat Flux Plate

Fluxteq is an internationally recognized producer of heat flux sensors and heat flux plates thermocouple readers and thermal sensing products for use in scientific research construction and heat transfer education.

Heat flux plate.

Heat flux plate. The use of pt has extended beyond the furnace control for monitoring heat exposure of objects in various fire scenarios. Cold plates with oscillating flow. The heat flux can have different origins.

5 6 plate thermometers are robust and cheap and the pt temperature measurements can be used as boundary conditions for calculating temperature in fire. Preliminary results show effective thermal conductivities of up to 240 000 w m k versus 1 200 w m k for diamond and 90 000 w m k for heat pipes and the ability to remove heat fluxes as large as 1 200 w cm 2. Ultra sensitive heat flux plates are now available. Heat flux or thermal flux sometimes also referred to as heat flux density heat flow density or heat flow rate intensity is a flow of energy per unit of area per unit of time.

To define the heat flux at a certain point in space one takes the limiting case where the size. In principle convective radiative as well as conductive heat can be measured. The total thermal resistance is kept small by using a ceramics plastic composite body. The sensor is very robust and stable.

A cold plate uses the oscillating flow of a single phase fluid to spread the heat. If the plate is already installed and it is desirable to use the opposite sign convention change the sign of the multiplier to make it a negative value. In si its units are watts per square metre w m 2 it has both a direction and a magnitude and so it is a vector quantity. This boundary condition contains an option to define the heat transfer coefficient using predefined nusselt number correlations as shown below.

Our latest line of heat flux sensors is here. Hfp01 is the world s most popular sensor for heat flux measurement in the soil as well as through walls and building envelopes. The heat loss from the hot plate to the cold fluid is defined using a heat flux boundary condition. Thermal conductivities of woods were measured by the hot wire method.

It is suitable for long term use on one location as well as repeated. Heat flux that enters the red face and exits the blue face of the hfp01 l results in a positive analog output or positive heat. Some instruments are actually single purpose heat flux sensors like pyranometers for solar radiation measurement. These rigid plates are perfect for building science applications soil geothermal heat flux studies or any application involving very low level of heat flux.

Heat flux sensors are known under different names such as heat flux transducers heat flux gauges heat flux plates. The heat flux for paulownia and oak were calculated with a semi infinite body contact model and a plate contact model 7.