Alan D Gillan
Engineers at 62 Ave, Denver, CO

6776001, Aug 17, 2004

Oct 28, 2002

10/203195

Valeriy Maisotsenko - Aurora CO
Leland E. Gillan - Denver CO
Timothy L. Heaton - Arvada CO
Alan D. Gillan - Denver CO

Idalex Technologies, Inc. - Arvada CO

F28C 100

62315, 62 91, 261153

The present invention relates to a method and an apparatus for providing enhanced indirect evaporative cooling of air, water, fuel, or other fluids while controlling the humidity. The design makes cooling down to the dew point possible without energy input other than the energy to produce the fluid flow needed. The design makes use of stacked composite plates ( ) with channels ( ) for fluid flow between adjacent plates. On opposing surface areas of these plates, there are wet areas ( ) or dry areas ( ). The wet areas ( ) provide cooling by conventional evaporation which is in turn used to cool the fluids in contact with the dry areas ( ). The benefit is controlled heat transfer, which allows selected cooling of fluid flow such that the temperature as low as dew point are reachable.

6779351, Aug 24, 2004

Feb 24, 2003

10/373309

Valeriy Maisotsenko - Aurora CO
Leland E. Gillan - Denver CO
Timothy L. Heaton - Arvada CO
Alan D. Gillan - Denver CO

Idalex Technologies, Inc. - Arvada CO

F28C 100

62121, 62314, 429 19, 429 20

A fuel cell using fuel and oxidant resulting in the production of water and heat in addition to electrical power. The fuel cell employs an evaporative cooler and has methods to adjust the moisture and temperature for the fuel and oxidant flows to improve the fuel cell efficiency. The water produced by the fuel cell is used to provide the water for wet channels of the evaporative cooler. The evaporative cooler has separate product channels and dry working channels that are cooled by heat transfer across a heat exchanger plate. The heat exchanger plate forms part of each wet working channel on the wet side of the heat exchanger plate and part of the product channel and the dry working channel on the dry side. The fuel passes first through the dry working channel then the wet working channel becoming humidified by the evaporation therein and cooling the heat exchanger plate before going to the anode of the fuel cell. The oxidant is cooled by passing through the product channel before being directed to the cathode.

6705096, Mar 16, 2004

Dec 11, 2002

10/316775

Valeriy Maisotsenko - Aurora CO
Timothy L. Heaton - Arvada CO
Alan D. Gillan - Denver CO
Leland E. Gillan - Denver CO

Idalex Technologies, Inc. - Arvada CO

F28C 100

62121, 62171

An improved method and apparatus for indirect evaporative cooling of a fluid stream to substantially its dew point temperature. Plate heat exchanger has perforations ( ) and channels ( and ) for gas on a dry side and wet side. There is a trough formed in a portion of the plate that temporarily holds evaporative fluid which is in contact with the wick material on the wet side surface of the plate. The evaporative fluid flows through the trough by way of liquid perforations into the next trough. The trough of a plate with a wet side up, the liquid perforations are on the side creating a reservoir to wet the opposing wick materials. As streams flow across the dry side ( ), transferring heat to the plate. Working gas stream ( ) flows across the dry side and through perforations to channels ( ) on wet side ( ), which it then cools by evaporative cooling as well as conductive and radiative transfer of heat from plate.

2002003, Apr 4, 2002

Jul 27, 2001

09/916800

Valeriy Maisotsenko - Aurora CO, US
Leland Gillan - Denver CO, US
Timothy Heaton - Arvada CO, US
Alan Gillan - Denver CO, US

F28C001/00, F28D005/00

062/121000, 062/310000, 062/314000

The within invention improves on the indirect evaporative cooling method and apparatus by making use of a working fluid that is pre- cooled with and without desiccants before it is passed through a Wet Channel where evaporative fluid is on the walls to take heat and store it in the working fluid as increased latent heat. The heat transfer across the membrane between the Dry Channel and the Wet Channel may have dry, solid desiccant or liquid desiccant and may have perforations, pores or capillary pathways. The evaporative fluid may be water, fuel, or any substance that has the capacity to take heat as latent heat. The Wet Channel or excess cooled fluid is in heat transfer contact with a Product Channel where Product Fluid is cooled without adding any humidity. An alternative embodiment for heat transfer between adjacent channels is with heat pipes.

2003001, Jan 23, 2003

Sep 19, 2002

10/247066

Valeriy Maisotsenko - Aurora CO, US
Leland Gillan - Denver CO, US
Timothy Heaton - Arvada CO, US
Alan Gillan - Denver CO, US

F28C001/00, F25D017/04

062/121000, 062/309000

The within invention improves on the indirect evaporative cooling method and apparatus by making use of a working fluid that is pre-cooled with and without desiccants before it is passed through a Wet Channel where evaporative fluid is on the walls to take heat and store it in the working fluid as increased latent heat. The heat transfer across the membrane between the Dry Channel and the Wet Channel may have dry, solid desiccant or liquid desiccant and may have perforations, pores or capillary pathways. The evaporative fluid may be water, fuel, or any substance that has the capacity to take heat as latent heat. The Wet Channel or excess cooled fluid is in heat transfer contact with a Product Channel where Product Fluid is cooled without adding any humidity. An alternative embodiment for heat transfer between adjacent channels is with heat pipes.

2004006, Apr 1, 2004

Aug 5, 2002

10/213002

Valeriy Maisotsenko - Aurora CO, US
Leland Gillan - Denver CO, US
Timothy Heaton - Arvada CO, US
Alan Gillan - Denver CO, US

F02M031/00

261/153000

The present invention relates to methods for indirect evaporative air cooling with the use of plates, heat exchangers and feeder wicks on the indirect evaporative type. Several components for an indirect evaporative heat exchanger described as follows: A plate for an indirect evaporative heat exchanger where the plate is made of laminate material comprising one sheet of wicking material for wet zone(s) and the other of a water proof plastic material for the dry zone(s). An evaporative heat exchanger is created by assembling the plates forming spacing for wet channels, (they are created by the wet zone of the plates,) and dry channels, (they are created by the dry zone of the plates,) with channel guides or corrugated plates. The spacing between the plates is defined to reduce pressure drop for increased airflow. A feeder wick system creates the wetting of the wet channels without excess water. Sometimes the wet zone of the plate can be made of a membrane material where the opposite side of this membrane material is covered by a solid desiccant creating the wet zone of this desiccant plate. An indirect evaporative heat exchanger that is created by assembling both wick coated with plastic plates and desiccant plates, can realize not only the evaporative cooling but also the dehumidification of air.

2005021, Oct 6, 2005

Mar 31, 2005

11/095106

Valeriy Maisotsenko - Auroroa CO, US
Leland Gillan - Denver CO, US
Timothy Heaton - Arvada CO, US
Alan Gillan - Denver CO, US

F25D017/06, F02M031/00, F02M023/14

261153000

The present invention relates to methods for indirect evaporative air-cooling with the use of plates, heat exchangers and feeder wicks—of the indirect evaporative type. Several components for an indirect evaporative heat exchanger described as follows: A plate for an indirect evaporative heat exchanger where the plate is made of laminate material having one sheet of wicking material for wet zone(s) and the other of a water proof plastic material for the dry zone(s). An evaporative heat exchanger is created by assembling the plates forming spacing for wet channels, (they are created by the wet zone of the plates,) and dry channels, (they are created by the dry zone of the plates,) with channel guides or corrugated plates. The spacing between the plates is defined to reduce pressure drop for increased airflow. A feeder wick system creates the wetting of the wet channels without excess water. Sometimes the wet zone of the plate can be made of a membrane material where the opposite side of this membrane material is covered by a solid desiccant creating the wet zone of this desiccant plate. An indirect evaporative heat exchanger that is created by assembling both wick coated with plastic plates and desiccant plates, can realize not only the evaporative cooling but also the dehumidification of air.

2010001, Jan 28, 2010

Jul 21, 2009

12/506991

Leland E. Gillan - Denver CO, US
Valeriy Maisotsenko - Aurora CO, US
Alan D. Gillan - Denver CO, US
Rick J. Gillan - Golden CO, US

Idalex Technologies, Inc. - Denver CO

F25D 23/00, F28F 7/00, F28F 13/18, F28D 5/00, B21D 53/02

622594, 165185, 165133, 62304, 2989003

Heat exchanger plates for indirect evaporative coolers, of the type having a dry side having low permeability to an evaporative liquid and formed to allow a product fluid to flow over a heat transfer area of its surface, a wet side designed to have its surface wet by an evaporative liquid, and formed to allow a working gas to flow over its surface to evaporate the evaporative liquid, are formed such that the wet side comprises a hydrophobic fiber sheet and the dry side comprises a non-permeable sealing layer on the sheet. Heat seal strips are formed at the inlet and outlet of the plates and air flow perforations are formed through the plates.

6854278, Feb 15, 2005

Aug 19, 2002

10/223223

Valeriy Maisotsenko - Aurora CO, US
Leland E. Gillan - Denver CO, US
Timothy L. Heaton - Arvada CO, US
Alan D. Gillan - Denver CO, US

F25D017/06, F25D023/12, F25C001/00

62 94, 62315, 622594

The operating efficiency of indirect evaporative cooling processes and indirect evaporative cooling apparatus employing a dry side channel and a wet side channel separated by a heat exchange plate are improved by placement of holes in the heat exchange plate. Further improvements are obtained when the flow direction in the wet side channel is cross-current to the flow direction in the dry side channel. Placement of desiccant materials in the dry side channel also serve to improve the operating efficiencies of these processes and apparatus.