WHG 125 Waste Heat Generator 125kW

Efficient Energy SolutionsCalnetix Power Solutions manufactures the WHG125, a waste heat generator that converts heat energy into electrical power using the Organic Rankine Cycle. The power generated by the WHG125 improves energy efficiency with no fuel costs and no additional emissions. Waste heat sources are widely available in almost any market and there are many easily identified sources including boilers, engine exhaust, heat stacks and flares burning landfill or digester gases.

The WHG125 integrates well known technologies into a unique generator design. Using a radial expander turbine coupled with a high speed alternator the WHG125 converts energy more efficiently than systems using a conventional generator. The efficiency of the WHG125 allows for more units of energy to be generated per unit of waste energy input.

The main driver for all energy efficiency improvements is to save money by reducing energy demand. Simply stated every unit of energy wasted is an equal unit of wasted cash. The more efficient the conversion process of waste heat to electricity the more cash is saved. Typically, a generation upgrade using a WHG125 has a payback period of less than 3 years.

Because many governments classify electrical generation from waste heat as a renewable energy form, additional carbon and renewable energy credits may also be received further increasing economic returns. This makes installing a WHG125 a responsible decision both economically and environmentally.

Core Technology Advantages • High Speed Generator – High Efficiency and Reliability › Hermetically Sealed – Higher Reliability › Single Moving Part – High Reliability • Magnetic Bearings – High Efficiency and Reliability › No Lubrication System – Reduced Parasitic Losses, Higher Reliability • Power Electronics – Simplified Synchronization with Utility or Other Generator • Variable Speed Operation – Optimized Cycle Efficiency at Operating Point • Modular Design – Simplifies Design Integration

If you have any question or would ilke to learn more about our products please contact us at: info@calnetixPS.com or call +1-772-219-9449.

Calnetix Power Solutions2901 S.E. Monroe Street, Stuart, Florida 34997, USA

Component DesignAlternator- High speed, permanent magnet Turbine- Single state radial expander turbineBearings- Magnetic frictionless Design StandardsPiping ASME B31.1Heat Exchangers ASME VIII/PEDElectrical Enclosures NEMA1/ IP23

SystemRefrigerant- R245FA (Non-ozone depleting)Controls- PLC based Remote Monitoring- Web based gatewayOperation- Designed for local & remote controlPackaged Solutions Available

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Pressurized Hot Water to Power (249° F inlet)Electrical Output Gross 125kWe

Waste HeatConditions

Inlet Temp 249° F 120.6° COutlet Temp 225° F 107.2° CInput Energy 2,850,000 BTU/hr 835.3 kW/hr

Flow Rate 250 GPM 56.8 m3/hrCondensingConditions

Temp 70° F 21.1° CCondensing Load 2,423,500 BTU/hr 710.1 kW/hr

WHG125 Performance

Hot GasesElectrical Output Gross 125kWe

Inlet Temp Flow Rate

Deg °F Deg °C lbm/ hr kg/ hr

400 205 100,800 45,735

500 260 56,000 25,408

600 315 38,769 17,590

700 370 29,647 13,451

800 425 24,000 10,889

900 480 20,160 9,1461) Waste heat conditions- exhaust gas temperature reduced to 275° F/ 135° C with condensing temperature of 70° F/ 21.1° C

2) Assumed exhaust gas Cp = 0.25 Btu/lbm - °F/ 1.05 kJ/kg - °C

3) Heat exchanger 90% efficient

Pressurized Hot Water to Power (229° F inlet)Electrical Output Gross 125kWe

Waste HeatConditions

Inlet Temp 229° F 109.4° COutlet Temp 210° F 98.9° CInput Energy 2,850,000 BTU/hr 835.3 kW/hr

Flow Rate 300 GPM 68.1 m3/hrCondensingConditions

Temp 50° F 10.0° CCondensing Load 2,441,000 BTU/hr 715.2 kW/hr

Saturated SteamElectrical Output Gross 125kWe

Temperature Pressure Flow250° F 30 psia 3,173 lbm/hr121° C 206 kPa 1,442 kg/hr

1) Waste heat operating conditions: no superheat in steam included. Condensing temperature of 70° F (21.1° C) and heat exchanger 95% efficient.