CMC-Engineering
2900 Gordon Avenue, Suite 100
Santa Clara, California 95051
Telephone:  (408) 314-0382
Facsimile:  (408) 735-0564
Email:  carlo@cmc-engineering.com
Combined Heat and Power

Under a development program sponsored by the California Energy Commission and Southern California
Gas Company, CMC-Engineering completed the installation of a novel CHP assembly that incorporates a
modified simple cycle microturbine with an industrial low NOx burner at the Hitachi Global Storage
Technology (HGST) Plant in San Jose, CA. The first installation achieved the following objectives:

  • A new low-NOx combustor for a simple cycle CPS microturbine was designed, fabricated, and
    successfully tested as a replacement to the Elliott partial oxidation combustor. NOx emissions
    from the combustor were reduced from 18-22 ppm to about 3 ppm, corrected to 15% O2, thus
    permitting microturbine compliance with CARB 2007 NOx emission limits under CHP operation.
  • A new enclosure was designed and fabricated for the simple cycle low-NOx microturbine to
    provide the interface between the microturbine and the windbox and to permit close integration
    with the windbox of an industrial packaged boiler and 100% recovery of waste heat from the
    microturbine.
  • A conventional industrial burner windbox was modified to permit the channeling of microturbine
    TEG to assist a Coen QLNTM operation at NOx emission levels below boiler permitted levels with
    reduced combustion air and external FGR
The CHP assembly was retrofit and was demonstrated to achieve the following
performance:

  • CHP Efficiency = 82.7 percent
  • NOx Emissions = 0.045 lb/MWh (satisfies the CARB 2007 emissions
    requirements of 0.07 lb/MWh (electrical and thermal))
  • CO Emission = 0.045 lb/MWh  (satisfies CARB limits of 0.10 lb/MWh (electrical
    and thermal))
  • CO2 emission reduction = 0.26 tons/MWh

This new CHP technology replaces FGR requirements, reduces energy consumption
during all boiler loads, and provides an attractive ROI with a low-cost, small footprint
retrofit installation. Industrial burner vendors interested in entering into a business
relationship with CMC-Engineering to commercially offer this technology should contact
CMC-Engineering.
Combined Heat and Power (CHP) Partner Greenhouse
Gas Reduction Report

Presented to

CMC-Engineering

on January 14, 2009

By the United States Environmental Protection Agency Combined Heat and
Power Partnership in recognition of CMC-Engineering's contribution to efficient
domestic energy production.

Through 2008, the high efficiency of CMC-Engineering's two CHP project(s)
produced an estimated 0.001million metric tons of carbon equivalents less than
typical separate heat and power, resulting in annual emissions reductions
equivalent to:

80 acres of pine or fir forests storing carbon for one year

or

The emissions from 64 passenger vehicles