Arvos Ljungstrom LLC

Arvos Gmbh

The Air Preheater Company, Inc.

Alstom Technology Limited

James W Birmingham

Kevin James O'Boyle

James David Seebald

Kevin J O'Boyle

Glenn D Mattison

Craig R Johnson

James D Seebald

A stack of heat transfer sheets includes one or more first sheet which includes a first undulating surface formed by first lobes that are parallel to each other and oriented at a first angle. The first sheets include a second undulating surface formed by second lobes that are parallel to each other and oriented at a second angle, different from the first angle. The first sheets include a third undulating surface formed by third lobes extending from one or more ends of the first sheet and terminating at an intermediate point between the end and an opposing end thereof. The third lobes are parallel to each other and parallel to the direction of flow through the stack. The stack includes one or more second sheets defining a plurality of sheet spacing features which engage a portion of the first sheet.

Heat transfer sheet for rotary regenerative heat exchanger

A thermally efficiency regenerative air preheaterextracts more thermal energy from the flue gas exiting a solid fuel fired furnaceby employing an alkaline injection system. This mitigates acid fouling by selectively injecting different sized alkaline particlesinto the air preheater. Small particles provide nucleation sites for condensation and neutralization of acid vapors. Large particles are injected to contact and selectively adhere to the heat exchange elementsand neutralize liquid acid that condenses there. When the deposit accumulation exceeds a threshold, the apparatus generates and utilizes a higher relative percentage of large particles. Similarly, a larger relative percentage of small particles are used in other cases. Mitigation of the fouling conditions permits the redesign of the air preheaterto achieve the transfer of more heat from the flue resulting in a lower flue gas outlet temperature without excessive fouling.

Exhaust processing and heat recovery system

A heat transfer sheet [] for a rotary regenerative heat exchanger is shaped to include sheet spacing features [], which provide spacing between adjacent heat transfer sheets [], and undulation surfaces [] (corrugations) in the sections between the sheet spacing features []. The undulation sections [] are constructed of regularly spaced lobes [] extending at an angle with respect to the spacing features []. The undulating sections [] impart turbulence in the air or flue gas flowing between the heat transfer sheets [] to improve heat transfer. The heat transfer sheets [] may include undulating surfaces that differ in angle of their lobes [

A fume incinerator (10) and a method of operating same for eliminating combustible fumes from an oxygen bearing process gas stream (1). A first portion (11) of the oxygen bearing process gas (1) is passed to a burner (30) and serves as the source of oxygen for combusting an auxiliary fuel (9) to establish a flame front (28) within the incinerator. The remainder (13) of the process gas stream (1) is passed through the flame front for incineration of any obnoxious fumes contained therein.

Growing community of inventors

Wellsville, NY, United States of America

James W Birmingham