Lieberman Research Associates has more than 26 patents and 1 patent application and technical paper (July 2019) co-authored with Glosten, Naval/Marine Architects) using Compressed Air Energy Storage to support an off-shore wind farm and other applications. The tech paper shows the comparable Leveled Cost of Storage (LCOS) of our system versus Lithium Batteries. However, our system also supplies a high mass flow of exhaust air at -175 deg F as by-product of electrical power generation (1 MW (thermal) = 1 MW (electrical). This feature was not included in the LCOS calculation. Furthermore, batteries on a barge are a negative compared to floatation provided by the pressure vessels. The cold air can be used for HVAC, cold storage or water purification (Patent application for wastewater purification, July 2020 and earlier versions). The cold air mixed with fresh air to a GenSet (MARS 100) provides 30% reduction in natural gas consumption (Patent).
In another configuration the pressure vessels are stacked next to a building. The system is charged using utility power at night and discharges both electricity and chilled air (HVAC and cold storage) during the day. This system is important to avoid brown outs.
In yet another configuration the pressure vessel is a 10 to 50 mile long pipeline that extends from a wind/solar farm for driving the compressor to a town or city where the air discharge drives either a turboexpander generator set to provide electricity and HVAC or drives a Compander (two-stage, free-spooling turboexpander coupled to turbocompressors) set to provide HVAC and cold storage but no electricity. In the first application the pipeline is above ground where heat from solar irradiation or heat from wildfires provides more electricity especially when high voltage power lines are typically shut down. Whereas in the latter application the pipeline is below ground to provide maximum thermal chill power especially needed to reduce the Urban Heat Island effect.
A wastewater treatment facility (see photo) was built directed at using the turboexpander cold exhaust air to successfully purify a flow of 13% concentrate salt solutions, out of the range of reverse osmosis systems.
RELEVANT PATENTS (Partial list) :
* Eutectic Freeze Crystallization Spray Chamber US 15/209,666 July 13, 2016
DE 2017.022816522100, July 13, 2016
* Green Energy Communities US 15/585,035, May 2, 2017
* Gas Turbine System US 15/632,081, June 23, 2017
* Explosive Separation of Impurities from Waste Water in Freeze Crystallization Spray Chambers US 10,167,205 Jan/01/2019 and DE 2018/022223433400,Feb 2, 2018
* Energy Storage Barge: US 16/042,149, July 23, 2018
* Efficient Compressed Air Energy Storage Barge, US 62873157, July 11, 2019
* Wastewater Purification Chamber System and Methods US 63054698, July 17, 2020
* System and Methodology of an Enhanced Advanced Adiabatic Compressed Air Energy Storage (E-AA-CAES) System with Heat Transfer from Sun and to Soil
US 63072036 August 28, 2020.
TECHNICAL PAPER (Partial list)
* “Engineering and Cost Study of an Offshore Wind Farm Compressed Air Energy Storage System”, Offshore Energy and Storage, Brest, France OSES2019.
* “Transportable – Compressed Air Energy Storage (T-CAES) System, 1 To 10 MW and 3 Hours Discharge, Including Solar Irradiation” Power Gen International Conference, Las Vegas, Nevada, December 8 – 10, 2009
* "Integrated Wind Turbine Generator (WTG), Transportable Compressed Air Energy Storage (T-CAES), Desalination And Mineral Recovery Systems”, Electrical Energy Storage Systems Applications and Technologies (EESAT 2007), Westin St. Francis Hotel, San Francisco, CA, September 23 – 26, 2007.
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