This project converts refuse and junk tires to electrical power by combining proven process components to create a sustainable state of the art wastes recovery system that reduces pollution and fossil fuel dependency by utilizing problematic local waste to produce power and displace fossil fuels. The system consists of three process steps:
- Feed Preparation – Commercially available equipment and labor is used to recover recyclables, remove inert gases and hazardous wastes and process the remaining organics into a uniform quality solid fuel.
- Conversion – The solid fuel is transformed to sequestered carbon and clean gas to provide heat for power production. The conversion technology is well known. Coal, wood and peat have been converted to gas for heating and lighting since the 1600s. 50,000 plants were manufacturing gas in the US prior to being replaced by cheap electricity and natural gas.
The patented process to be used, is a simple, state of the art, effective, low maintenance system with flexible features suitable to the unique requirements of this application
- Power Generation –. One of the most efficient ways to convert heat to mechanical energy is with the Organic Rankine Cycle (ORC). Steam turbine power plants, refrigeration cycles and single stage turbo-expander systems are the most well known and common ORC cycles.
This project employs the patented WOWGenTM, CCLC, ORC process. The optimum heat transfer fluid for an ORC depends on the heat source. The CCLC system uses propane as it vaporizes and condenses at low temperatures, but unlike other working fluids, can be used at much higher temperatures. The higher the temperature, the more efficient the system, since power is developed by expanding pressure and temperature to rotate a turbine/generator. The propane is in a hermetically sealed closed loop so is not consumed.
CCLC system components have millions of hours of reliable and nearly maintenance free service, primarily in refineries, petrochemical and geothermal plants. Turbo-expanders have been used for decades in hundreds of applications and are used to drive generators, pumps and compressors in the most demanding of applications. They are essential components in air separation plants; cryogenic processes; LNG plants; natural gas and propane pressure letdown applications - gas plants & pipeline compressor stations; and for waste heat recovery systems. Vendors offer turbo-expanders in sizes ranging from a fraction up to 50,000 HP.
The individual process components of the Utah Valley Energy system are proven. However, this is the first time they are to be assembled in such an effective configuration in this application and under such favorable energy market and environmental incentives. Capital and operating projections indicate that sustainability can now be accomplished with considerable economic and environmental benefit to the community and immediate stakeholders.
|