The following are WHE systems currently available or in planning and development stage:

Initial WHE Model
Currently, Cyclone has developed and is beta testing its WHE-25 industrial waste heat system.

The heart of the WHE-25 is the 25cu.in. engine capable of producing up to 16 HP of mechanical output, which is sufficient to power a 10 kW electrical generator. This means that one engine offers the potential to supply a significant portion of the energy requirements of a home or small commercial facility. Multiple engines in-line or networked can be used to generate greater power output – up to about 100kW.

Connected with an engine exhaust system, such as an 18-wheeler, the WHE-25 can substantially boost the overall efficiency and lower overall emissions of the prime mover engine. The WHE-25 system can be used as an Auxiliary Power Unit, running a truck’s electrical (or refrigeration) requirements of exhaust heat when the vehicle is in motion, and then off a separate gas or propane line when at rest.

WHE-25 Engine Specifications
6-cylinder radial - uniflow - Rankine cycle engine
1.870" bore - 1.5" stroke - pa 2.746sq in - 4.12cu in per cylinder - 24.78 cu in Operating RPM: 50 to 3000
Operating pressure: 25 to 200 psi
Maximum pressure: 300 psi
Operating temperatures: 500ºF to 700ºF
Minimum clearance volume - 0 compression and 34% cutoff for self starting Maximum output at 3000 rpm , 200 psi, 600°f @ 34% cutoff =15.8 HP
Weight 18 lbs without condenser and alternator
Dimensions 14.25" x 14.25" x 10" h *Patent-pending

click image to enlarge

The WHE-25 is meant to run the steam zone of 500ºF to 700ºF; however, Organic materials can be used for the engine’s working fluid. As a result, the WHE-25 could operate on temperatures as low as 200ºF.

Larger planned Engines
Cyclone is working to develop larger-scale waste heat engines configurations. These engine systems will harvest heat from larger industrial furnaces, foundries and other heat producing (and wasting) equipment, as well as higher quality heat – up to about 2200ºF. Current plans are to design the following engine models:

WHE-300 (Med Temp)
6-cylinder radial - uniflow - Rankine cycle engine
4" bore - 4" stroke - 300 cu in
Operating RPM: 1000 to 3000
Operating pressure: 100 to 300 psi
Operating temperatures: 500ºF to 1,000ºF
Output: 100hp -

WHE-MK5 (High Temp)
6-cylinder radial - uniflow - Rankine cycle engine
2" bore - 2" stroke – 37.7 cu in
Operating RPM: 2000 - 3600
Operating pressure: 3200 psi
Operating temperatures: 1200ºF
Output: 100hp

WHE-MK6 (High Temp)
6-cylinder radial - uniflow - Rankine cycle engine
3" bore - 3" stroke - 127 cu in
Operating RPM: 2000 - 3600
Operating pressure: 3200 psi
Operating temperatures: 500ºF to 1,200ºF
Output: 330hp

Similar to the WHE-25, multiple larger WHE engines can be networked to produce up to 1MW of electricity.