System for chilling inlet air for gas turbines
First Claim
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1. A method for chilling inlet air to a gas turbine power plant, comprising:
- a. providing a system of circulating chilling water including a chilling system;
b. providing an inlet air chiller for lowering the temperature of the inlet air being fed to a gas turbine compressor through heat transfer between the circulating chilling water and the inlet air;
c. providing a thermal water storage tank which is operably connected to the system of circulating chilling water, the thermal water storage tank containing chilling water having a bottom;
d. during a charge cycle, removing a first portion of chilling water from the thermal water storage tank, passing the removed first portion of water through the chilling system to lower the temperature of the removed first portion of water and to provide a chilled removed first portion of water, and then introducing the chilled removed first portion of water into the thermal water storage tank at a point proximate the bottom of the tank, wherein the chilled removed first portion of water is introduced to the tank in an amount sufficient to lower the average temperature of the chilling water in the thermal water storage tank; and
e. during a discharge cycle, chilling the inlet air by removing a second portion of chilling water from the thermal water storage tank, from a point proximate the bottom of the tank and then passing the second portion of chilling water to the inlet air chiller to make heat transfer contact between the second portion of chilling water and the inlet air, such that the temperature of the inlet air is lowered.
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Accused Products
Abstract
In a gas turbine power plant system having an air chiller for lowering the temperature of inlet air, a compressor for compressing the inlet air, a combustor for combusting the compressed air and fuel and a power turbine for providing useful power, a method and apparatus for chilling water delivered to the air chiller is provided, having a thermal water storage tank for storing chilling water, the tank having a bottom portion and a top portion, and a bottom inlet and a bottom outlet and a top inlet and a top outlet. A charge cycle is provided wherein the tank is filled with chilled water, and a discharge cycle is provided wherein the chilled water is fed to the air chiller, thereby chilling the inlet air to the power turbine.
10 Citations
20 Claims
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1. A method for chilling inlet air to a gas turbine power plant, comprising:
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a. providing a system of circulating chilling water including a chilling system;
b. providing an inlet air chiller for lowering the temperature of the inlet air being fed to a gas turbine compressor through heat transfer between the circulating chilling water and the inlet air;
c. providing a thermal water storage tank which is operably connected to the system of circulating chilling water, the thermal water storage tank containing chilling water having a bottom;
d. during a charge cycle, removing a first portion of chilling water from the thermal water storage tank, passing the removed first portion of water through the chilling system to lower the temperature of the removed first portion of water and to provide a chilled removed first portion of water, and then introducing the chilled removed first portion of water into the thermal water storage tank at a point proximate the bottom of the tank, wherein the chilled removed first portion of water is introduced to the tank in an amount sufficient to lower the average temperature of the chilling water in the thermal water storage tank; and
e. during a discharge cycle, chilling the inlet air by removing a second portion of chilling water from the thermal water storage tank, from a point proximate the bottom of the tank and then passing the second portion of chilling water to the inlet air chiller to make heat transfer contact between the second portion of chilling water and the inlet air, such that the temperature of the inlet air is lowered. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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2. In a gas turbine power plant system having at least one air chiller for lowering the temperature of inlet air, at least one air compressor for compressing the inlet air, at least one combustor for burning the compressed air and providing combustion gas, and at least one power turbine driven by the combustion gas for producing useful power, a method of chilling water delivered to the air chiller comprising the steps of:
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providing the at least one air chiller with an air chiller inlet that receives water, and an air chiller outlet that expels water;
providing a thermal water storage tank, having a bottom portion, a top portion, at least one bottom opening proximate the bottom portion and at least one top opening proximate the top portion, and containing a volume of stored water having an average temperature, and temperature of maximum water density;
performing a charge cycle, by introducing through the at least one bottom opening a first quantity of chilled water which has a chilled water temperature that is below the temperature of maximum water density, thereby lowering the average temperature of the volume of stored water, wherein the first quantity of chilled water being introduced through the bottom opening is sufficient to lower the average temperature of the volume of stored water to a temperature that is below the temperature of maximum water density; and
performing a discharge cycle by removing a second quantity of chilled water from the tank through the at least one bottom opening and passing the second quantity of chilled water to the air chiller inlet, to lower the temperature of the inlet air, thereby raising the temperature of the second quantity of chilled water and providing high temperature water, then introducing the high temperature water to the at least one top opening in the tank - View Dependent Claims (10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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14. A gas turbine power plant system, wherein the system includes:
- one or more air chillers for lowering the temperature of inlet air;
one or more air compressors for compressing the inlet air;
one or more combustors for burning the compressed air and providing combustion gas; and
one or more power turbines driven by the combustion gas for producing useful power, the improvement comprising;
a. a thermal water storage tank for containing chilled water, wherein the thermal water storage tank has a bottom portion with a bottom outlet and a top portion, and the tank is operably connected to the air chiller such that the chilled water passes from the bottom outlet to the air chiller to lower the temperature of the inlet air and is returned to the thermal water storage tank; and
b. a water chilling system for chilling the water in the thermal water storage tank, wherein the water chilling system is configured to receive high temperature water from the top portion of the tank, and wherein the system is configured to introduce low temperature water to the bottom portion of the tank, such that the average temperature of the water in the tank is lowered; and
wherein the water chilling system includes one or more chillers for lowering the temperature of the high temperature water from the top portion of the tank to provide low temperature water.
- one or more air chillers for lowering the temperature of inlet air;
Specification
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Current AssigneeTAS Energy Incorporated
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Original AssigneeTom L. Pierson
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InventorsPierson, Tom L.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current60/772
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CPC Class CodesF01K 23/10 with exhaust fluid of one c...F02C 7/143 before or between the compr...F25B 27/02 using waste heat, e.g. from...Y02A 30/274 using waste energy, e.g. fr...Y02E 20/16 Combined cycle power plant ...
