Tests with Electrical Heater Hood EHH70 and Experimental Stirling Engine ST05G-CNC with DC Generator


The electrical heater-hood EHH70 was purpose-designed to fit the heater-head of the well-known experimental Stirling machine ("Viebach Motor") ST05G from ve//ingenieure. It serves the purpose to heat this Stirling machine in research, development and technical education under controlled and reproducible conditions, thereby enabling tests and measurements on this device in laboratory environments.

The heater-hood comprises 3-phase electrical tubular heating-elements with a nominal power of 7 kW, a temperature-sensor, as well as electromechanically driven fans to homogenously distribute the heat within the hood, as well as to cool of outer surfaces. The heater-hood is thermally insulated against ambience.

Electrically, the heater-hood can be directly connected to the control cabinet of the dynamometer test-stand STD20. Alternatively, the EHH70 can be hooked up to a dedicated temperature-controller or to third party control-electronics.

The ST05G-CNC is an experimental Stirling machine in Gamma configuration, that was purpose-designed for applications in research, development and technical education.

The design is relatively simple under thermodynamic and mechanical aspects, mainly for ease of understanding its principles in technical education, as well as for ease of modifications in R&D. The ST05G-CNC is optimized for usage as a thermal engine, but can be operated in 4 quadrants, thereby working also as refrigerator or heat-pump.

The Stirling machine is equipped with a stainless steel expansion heat-exchanger (heater-head) to be used in environments with gases that contain little dust, no sulphur and excess oxygen.

In this video, a quick test with the EHH70, the ST05G-CNC, a small DC generator and a resistive load is is shown.

For further information, please watch our other videos or visit our website http://www.ve-ingenieure.de/.

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