Heat exchange system for plume abatement
AssigneeS.M.E. Products LP
InventorsLarry Lewis, Jeff Diaz
Life of this patent
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Abstract
The invention provides a method and apparatus for integrating the heat transfer zones of plate fin and tube and finned tube exchangers to reduce the dewpoint of a stream to reduce or eliminate visible plumb.
Claims9
A method of recovering energy and visible plumb abatement that comprises:
- A finned tube exchanger that can be used in heat transfer system that comprises:
- a. providing a first working fluid that has a dew point greater than the ambient air and feeding it onto the finned exterior side of the heat transfer device,
- b. feeding the first working fluid to the exterior finned side of a heat transfer zone to cool the first working fluid and thereby heating the second working fluid to a higher temperature,
- c. feeding the second working fluid into a tube, group of tubes, or pasageways to be heated or cooled by the first working fluid,
- d. feeding the third working fluid into a tube, group of tubes, or pasageways to be heated by the first working fluid and thereby cooling the first working fluid,
- e. routing the 2nd working fluid from the first exchanger to a third exchanger or group of exchangers to heat the first working fluid,
- f. the cooling of the first working fluid condenses water which is removed by separation, then the first working fluid is heated to well above its dewpoint which reduces or eliminates visible plumb before being discharged to atmosphere.
The method of cooling a stream which has a dewpoint greater than the ambient air with a plate fin and tube or finned tube exchanger to condense a portion of that stream, then reheating that stream to a higher temperature to eliminate or reduce a visible emission plumb.
A method for designing an energy recovery system for exhaust heat recovery by providing an integrated tube side heating circuitry to heat multiple working fluid circuits while cooling the exhaust stream to condense a portion of the exhaust stream, then heating the exhaust stream to eliminate or reduce visible plumb. This is proposed to be accomplished by contacting the exhaust energy stream to be recovered thereafter heating the working fluid(s) providing the driving the means for energy recovery and selecting a working fluid composition that permits meeting all design constraints.
Dependencies are inferred from the claim text.