Input and output temperature sensors (13 and 15) are provided to enable temperature difference to be measured and combined with fluid flow to indicate the rates of BTU flow.

During coextrusion, a first polymer conjoins with a second polymer while a temperature differential is maintained between the first and second polymers.

A thermopile measures the differential temperature between the first microchamber and the second microchamber and outputs a voltage representative of the difference.

A free-cooling limitation and variation sequence resides on said controller and varies the variable opening based at least upon a differential temperature.

With this new series Bronkhorst introduced the “Differential Temperature Balancing” technology, ensuring a superb sensor stability.

This new breed of engine is known as the Low Temperature Differential Stirling Engine (LTD for short).

Changes in the differential temperature can be detected, and those changes are used to determine whether moisture has intruded into a specific region of the insulation.

This system condenses biooil pyrolysis vapors to various desired fractions by differential temperature manipulation of individual condensers comprising a condenser chain.

For example, to keep a pipes temperature (Tp) at 30° C in an environment where the ambient temperature (Ta) can drop to minimum temperature of -10° C, it is important to keep the differential temperature (ΔT) at 40K.

The apparatus allow for a sealing service pathway between areas of differential temperature while allowing for relative movement consistent with thermal expansion and contraction.

Gas flow rate is accurately measured by determining the power dissipated at a constant differential temperature of a gas flow sensor, under conditions where its power dissipation is independent of its resistance.

Example: Differential temperature 100 degrees, 4° optics (B), the intersection point of the differential temperature circle and the radiation diagram is at angular radius of ± 1.2 degrees.

While each inflation device (50a-f) is proximate to the upper reference location, it is deflated by a compression facility (52) that employs a differential temperature to controllably 'stroke' Nitinol.