US 8,739,522 B2Granted

Systems and methods for pre-heating compressed air in advanced adiabatic compressed air energy storage systems

AssigneeNuovo Pignone S.p.A.

InventorsSanjay Anikhindi, Bhaskara Kosamana

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Abstract

Systems and methods provide for capturing heat energy in a power generation system. The system includes: a first compressor configured to exhaust a first compressed, heated air flow; a heat exchanger connected to the first compressor and configured to receive the first compressed, heated air flow and configured to transfer heat energy from the first compressed, heated air flow to an oil; at least one pump connected to the heat exchanger and configured to pump the heated oil in a closed-loop system from the heat exchanger to an insulated storage tank; a second compressor connected to the heat exchanger and configured to exhaust a second compressed, heated air flow; and an energy storage unit connected to the second compressor and configured to store heat energy from the second compressed, heated air flow.

Claims20

Dependent claims

A system for capturing heat energy in a power generation system, the system comprising:

a first compressor configured to exhaust a first compressed, heated air flow;
a heat exchanger connected to the first compressor and configured to receive the first compressed, heated air flow and configured to transfer heat energy from the first compressed, heated air flow to an oil;
at least one pump connected to the heat exchanger and configured to pump the heated oil in a closed-loop system from the heat exchanger to an insulated storage tank;
a second compressor connected to the heat exchanger and configured to exhaust a second compressed, heated air flow;
an energy storage unit connected to the second compressor and configured to store heat energy from the second compressed, heated air flow;
a storage facility connected to the energy storage unit and configured to store a cooled, compressed air received from the energy storage unit and configured to selectively release the cooled, compressed air back into the power generation system;
and
an insulated storage tank fluidly connected to the at least on pump configured to store the heated oil and configured to transfer heat energy from the heated oil to the cooled, compressed air.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/915,414Filed 29 Oct 2010
Published: US 2012/0102937 A13 May 2012
Granted: 3 Jun 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

F02C 6/16
Gas-turbine plants having means for storing energy, e.g. for meeting peak loads: for storing compressed air
F02C 1/04
Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid: the working fluid being heated…
Y02E 60/16
Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation: mechanical energy storage, e.g.…
F02C
Gas-turbine plants

Family

US 2012/0102937 A1Pre-grant publication · published 3 May 2012
US 8,739,522 B2This patent

From the US filing history. Foreign family members aren’t listed.

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