It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
The pilot plant is being constructed to demonstrate NET Power's proprietary Allam Cycle technology [described below]. The fossil-fuelled power plant will have a design capacity of 25MW (50MWth), and the data from the project will be used to develop a larger 295MW (590MWth) commercial power plant.
The technology integrates the oxy-combustion process, in which natural gas fuel is burned or combusted with pure oxygen to generate a high-pressure CO2, which is further used to drive a turbine to produce electricity.
The working fluid is then cooled through a regenerative heat exchanger, and water is separated from it to create a CO2 stream, which is pressurised and recycled back to continue the cycle. The plant can operate on both water-cooled and air-cooled systems for cooling purposes.
The excess CO2 is a pipeline-ready CO2 byproduct, which will be supplied to third parties for enhanced oil recovery (EOR) or sequestered underground. The only other byproduct from the power plant is water.
* Sandia National Laboratories and Lawrence Berkeley National Laboratory are involved with Toshiba, Echogen, Dresser Rand, GE, Barber-Nichols in S-CO2 cycles.
* Pratt and Whitney Rocketdyne is engaged with Argonne National Laboratories in a project with aim to integrate a 1000 MW nuclear plant with a S-CO2 cycle.
In its supercritical state, carbon dioxide is nearly twice as dense as steam, resulting in a very high power density. Supercritical carbon dioxide is easier to compress than steam and allows a generator to extract power from a turbine at higher temperatures.
The net result is a simpler turbine that can be 10 times smaller than its steam equivalent. A steam turbine usually has between 10 and 15 rotor stages. A supercritical turbine equivalent would have four.
originally posted by: Biigs
This could definitely be super-critical to the future of the planet and of smaller plants.
Are their any safety concerns vs steam turbines i just wondering.