ElectraTherm's Green Machine converts low temperature water flows into fuel-free, emission-free power. The Green Machine output range is up to 65kWe, based on temperatures and flows. The performance table below shows our heat and flow parameters.
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The small footprint (6.5 x 8 x 7.25 ft or 2 x 2.5 x 2.2 m), skid-mounted design facilitates ease of installation. Additionally, the Green Machine’s control system is fully automated, allowing remote control, remote monitoring and off-site maintenance.
The Green Machine is scalable to each heat source, allowing connection of multiple Green Machines to a single heat source if enough energy is provided. The Green Machine employs a robust design and the majority of machine components are readily available. Routine maintenance is easy, and with basic ElectraTherm training, technicians with an HVAC and mechanical background can handle required maintenance.
ElectraTherm’s Green Machine uses a twin screw expander for its power block. The twin screw design is simple and robust. The operating speed of the Green Machine is low, and does not require a gearbox. The twin screw can also run in a “wet” condition meaning the refrigerant does not have to be 100% superheated vapor. This is an advantage over traditional turbine-based expansion devices.
In locations with electricity rates greater than $US .10, a Green Machine can present an attractive return on investment to an end user. In certain geographies and applications, federal, state or even utility incentives may apply. These incentives further accelerate the return on investment.
Closed loop air cooled condensing option results in zero water consumption.
Fully automated controls system with remote monitoring and operating capabilities via Internet connection.
NEMA 3R / IP 54 compliant enclosure.
The Green Machine removes heat from existing heat streams. Further monetary savings can be realized by the reduction of power previously used to cool the heat stream.
- This is much simpler than competing technologies which need complex lubrication systems with filters, pumps, oil separators, coolers, etc.
- The integrated lubrication will also yield lower maintenance costs.
The Green Machine has a high dynamic output range with a 3:1 turn down ratio. This allows the Green Machine to stay operating over a wide variety of unforeseen and dynamically changing site conditions, maximizing the machines up-time.
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