Dennis Roy Jaasma

US Patent:

63087014, Oct 30, 2001

Filed:

Apr 10, 2000

Appl. No.:

9/546603

Inventors:

Dennis Jaasma - Blacksburg VA
Mark Champion - Blacksburg VA

International Classification:

F23B 500
F23K 316
F24B 116

US Classification:

126 77

Abstract:

A combustion system includes a primary combustion chamber divided into left and right sides by fuel-retaining standards defining a canyon or void extending into a secondary combustion chamber is provided. The combustion system includes an automatic air setting mechanism for controlling an air delivery system in the combustion system comprises. The automatic air setting mechanism includes a control for controlling an air passage of the air delivery system and a lock for locking the control. A sensor is also provided which senses the temperature of the combustion chamber so that when the temperature reaches a predetermined value the locking mechanism releases the control.

US Patent:

47247002, Feb 16, 1988

Filed:

Feb 18, 1986

Appl. No.:

6/830266

Inventors:

Dennis R. Jaasma - Blacksburg VA

Assignee:

Center for Innovative Technology - Herndon VA

International Classification:

G01N 2556

US Classification:

73 29

Abstract:

The disclosure relates to a method for continuously measuring the concentration of water in a gas stream. Several stations are utilized to perform the measuring function and to particularly determine the amount of moisture in the sample gas stream. The gas sample is extracted from a duct and initially condensed at a relatively lower temperature to further extract heavy organic materials. The gas stream is then subjected to a first orifice in a heated oven to measure the gas flow before water vapor has been condensed out. After this measuring step the gas is subjected to an ice bath and a drying column to extract the water vapor from the gas sample. The flow rate dried gas sample is again measured by an orifice in a controlled environment. The molar flow rates can be compared to determine the water concentration of the flue gas.

US Patent:

60679794, May 30, 2000

Filed:

Aug 4, 1998

Appl. No.:

9/129125

Inventors:

Dennis R. Jaasma - Blacksburg VA
Mark R. Champion - Blacksburg VA

International Classification:

F23B 500
F23K 316
F24B 116

US Classification:

126 77

Abstract:

A combustion system includes a primary combustion chamber divided into left and right sides by fuel-retaining standards defining a canyon or void extending into a secondary combustion chamber is provided. The floor of the primary combustion chamber and the fuel-retaining standards direct the burning solid fuel toward the lower part of the canyon, while at the same time retaining the non-burning solid fuel on either side of the fuel-retaining standards. The combustion system further includes an air delivery system having a lower air tube supplying high and low velocity air and an upper air tube. The lower air tube is positioned proximate to a firebox floor, while the upper air tube is positioned within the secondary chamber. Automatic air setting mechanisms are provided so that proper air settings can be maintained during various phases of a fire. The combustion system further includes a loading door having openings and a bypass system preventing the loading door from being fully closed unless the bypass is in the completely closed position.