microturbine demonstration at atlantis marine world aquarium
TRANSCRIPT
Unit Specifications (ISO Conditions)
Full-load power 28kW* net (+/- 1)
N0x emissions: 9ppm @ 15% O2
Natural gas input: 420,000 Btu/hr
Dimensions: 74.8”H, 28.1” W, 52.9” D
Sound level: 65 dBA @ 33ft*Low pressure natural gas model
Advertised efficiency levels were verified within the manufacturer’s tolerances.
Emission performance at steady state loads appears to be a strong advantage with NOx and CO readings below 20 ppm at full load.
Various design deficiencies were brought to the manufacturer’s attention.
Microturbine tested at Gas Technology Institute’s Distributed Energy Test Center
Lab tested prior to installation
Located along the Peconic River in downtown Riverhead3.2 acre facility contains over 80 exhibits including the
largest live coral reef display in the U.S.
Field test site
Atlantis Marine World Aquarium
Not this Atlantis!
Units installed in July, 2000
But...
Long Island Power Authority (LIPA) is not under jurisdiction of Public Service Commission.
New York State’s standard interconnection requirements (SIR) much less stringent than LIPA’s parallel generation agreement.
Interconnection issue
LIPA Parallel Generation Agreement
NYS Standard Interconnection Requirements
LIPA agrees to honor SIR
After over six months of negotiations!!!
In January 2001
System startup Jan. 2001
Capstone 30kW microturbine
Natural gas compressor
Unifin heat exchanger System baseloaded Operates grid-parallel Heat recovery
supplements existing water heaters
Ironing out the bugs
First Capstone installation the NYC Metropolitan area!
Early compressor selection by Capstone proved to be unreliable replaced twice.
Digital control board was also replaced.
Field monitoring
Power Measurement ION 7500
Yokogawa DX-210
Data acquisition system
Data acquisition system
System performance
Month Availability AveragekW Rate
ElectricalEfficiency*
CombinedEfficiency*
Sep.2003 99.9 23.1 21.0 38.2Oct.2003 100.0 25.2 22.0 37.0Nov.2003 99.9 25.9 22.4 34.5Dec.2003 98.4 27.0 23.2 36.7Jan. 2004 99.9 27.1 23.8 37.1Feb.2004 100.0 27.1 23.5 36.7Mar.2004 100.0 26.9 22.9 36.0Apr. 2004 99.9 26.0 22.3 35.5May.2004 100.0 24.4 21.7 35.3Jun. 2004 100.0 23.2 21.0 33.2Jul. 2004 100.0 22.2 20.6 32.8Aug.2004 100.0 22.2 20.6 30.0
*Based on LHV
Daily summer-time performance
Day AveragekW Rate
ElectricalEfficiency*
CombinedEfficiency*
Aug. 2,2004 21.6 20.6 32.0Aug. 3,2004 21.7 20.4 31.2Aug. 4,2004 21.4 20.3 31.1Aug. 5,2004 22.6 20.8 33.1Aug. 6,2004 22.7 20.9 34.4Aug. 7,2004 23.2 21.0 34.8Aug. 8,2004 23.1 20.9 34.0
*Based on LHV
Daily winter-time performance
Day AveragekW Rate
ElectricalEfficiency*
CombinedEfficiency*
Jan. 5,2004 27.2 24.0 36.4Jan. 6,2004 27.2 22.9 34.6Jan. 7,2004 27.3 23.8 36.8Jan. 8,2004 27.2 23.6 36.8Jan. 9,2004 27.3 23.8 36.8Jan.10,2004 27.2 24.8 39.0Jan.11,2004 27.3 24.3 39.4
*Based on LHV
Capstone has switched to a more reliable compressor.
United Technologies (UTC) has purchased 4.9% of Capstone.
60 kW unit has been introduced. 60 kW unit with packaged heat recovery
has been commercialized. UTC Power has introduced hybrid
microturbine/chiller packages. 200 kW unit undergoing field testing in
New York, California and Connecticut.
What has changed since 2001
Lab testing uncovered design flaws. Initial compressor selection proven
unreliable. Heat recovery potential sometimes
overestimated. After design and equipment modifications
microturbines can run very reliably. Atlantis unit running very well after 27,000
hours of baseload operation 99.8% availability during last 12 months.
Lessons learned