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US 2011/0048703 A1Published application
Heating apparatus
AssigneeExponential Technologies, Inc.
InventorsSoheil Farshchian, Alejandro Juan
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a use of pulsed combustion to convert chemical energy to usable heat. For example, in boilers, heat is generated by burning fuel at burners and transferring the heat to water or other fluids, including air, through heat exchangers. In one form, these heated fluids may then be utilized to assist in removing oil from oil sand reservoirs.
Claims10
A heat generating device comprising:
- a. a pressure gain combustor having at least one combustion chamber in fluid communication with a fuel inlet, an air inlet, and an ignition system;
- b. a heat exchanger in thermal conductive communication with the combustion chamber, the heat exchanger having a fluid inlet and a fluid outlet;
- c. a boiler in thermal conductive communication with an exhaust outlet of the combustion chamber, wherein the boiler comprises a larger flow cross-section area than the combustion chamber, the boiler having a fluid inlet and a fluid outlet;
- d. wherein the heater is operatively configured to directly draw heat from the combustion chamber, when the combustion chamber is in operation so as to utilize the heat produced in the pressure gain combustion process to superheat steam flowing through the heat exchanger from the boiler;
- e. an economizer coupled to an exhaust output of the boiler wherein the economizer pre-heats boiler feed water prior to delivery to the boiler;
- f. an air pre-heater coupled to an exhaust output of the economizer, wherein the air pre-heater is operatively configured to conductively heat air prior to the air entering the air inlet of the pressure gain combustor.
3 more elements
A pressure gain combustion apparatus for heating comprising:
- a. a combustion chamber in fluid communication with a fuel inlet, an air inlet, and an ignition system;
- b. a fuel delivery system operatively configured to supply fuel to the combustion chamber and operatively configured to utilize liquid or gaseous fuel;
- c. an air intake system operatively configured to draw air at ambient pressure and supply the combustion chamber with pressurized air;
- d. the combustion chamber operatively configured to produce pressure gain combustion or detonation of the fuel;
- e. a heat exchange device operatively configured draw heat from combusted gasses produced during combustion or detonation.
2 more elements
A method for withdrawing oil from an underground oil reservoir through a production wellbore, the method comprising the steps of:
- a. providing a pressure gain combustion apparatus operatively configured to heat a portion of the oil within the underground oil reservoir;
- i. wherein the pressure gain combustion apparatus comprises a combustion chamber in fluid communication with a fuel inlet, an air inlet, and an ignition system;
- ii. a fuel delivery system operatively configured to supply fuel to the combustion chamber and operatively configured to utilize liquid or gaseous fuel;
- iii. an air intake system operatively configured to draw air at ambient pressure and supply the combustion chamber of said apparatus with pressurized air;
- iv. a combustion chamber operatively configured to produce pressure gain combustion or detonation;
- b. providing a water jacket incorporated into the wellbore surrounding the combustion chamber of the said pressure gain combustion apparatus;
- i. the water jacket having direction communication with the oil reservoir is provided with sufficient number of perforations to allow fluid in the water jacket to bleed into the oil reservoir, and
- ii. wherein the water jacket is operatively configured to directly draw heat from the combustion chamber of the pressure gain combustor.
- c. providing a production wellbore in proximity to the heated portion of the oil within the underground oil reservoir;
- and
- d. withdrawing at least a portion of the heated oil from the reservoir through the production wellbore.
8 more elements
Dependencies are inferred from the claim text.