Presentation on theme: "Presented to: DOE/CETC Ottawa 2005 Bob Bechtold Harbec Plastics, Inc."— Presentation transcript:
1 Presented to: DOE/CETC Ottawa 2005 Bob Bechtold Harbec Plastics, Inc. Microturbine Applications - …4 Years of Experience later… Ottawa, CanadaPresented to: DOE/CETC Ottawa 2005Bob Bechtold Harbec Plastics, Inc.
2 Organization Project Manager - Bob Bechtold, Harbec Plastics Funding Partners - HSBC plus 3 economic development lendersEngineer - Bruce Keeley, Energy Concepts EngineeringProject Plan Vs Actual dates:Equipment Delivery Plan ActualThis was after 2 other companies failed to be able to deliver as promised and more than one year was wastedSystem Commissioned Plan ActualThis was because of other components in the system that were not delivered on timeMonitoring Underway Plan basic system monitoring Current real time monitoring and internet presentationReal time reportingHistorical dataWork in progress
7 In Retrospect with 100% Hindsight We would have built the project with 15 turbines instead of 25 with expansion potential to handle future business growth.We would have purchased different brand of heat exchangers.We would not have purchased gas compressors.Initially we thought it was a mistake to put the turbines inside of the building but since we learned to control ambient heat, we generally agree that being inside has advantages in the Northern climates.
9 Electrical Performance Hours of operation to December 31, 2004541,000 total microturbine hours (=21,600/turbine avr.)Maximum hours of operation on one unit is 27,500Average Electrical Performance %Power Delivered to Load/LHV FuelEstimated Parasitic Losses in kW50 kW Cooling mode18 kW Heating modePower QualityReport on any Power Quality Tests Done or Issues foundNo power quality issues when in stand alone modeOnly power quality issues that exist in grid connect mode are those that come from Utility Power Source
10 Thermal Performance Thermal Output measured in kW(MMBtu/hr) 200,000 Btu/hr per unit per hour recoveredAverage water return temperatures and Delta T across HX100* F to 200* F with 15* Delta T (new heat exchanger)100* F to 170*F with 10* Delta T (old heat exchanger)CHP Efficiency( we suggest the use of HHV)70% Total not recondensingExpected Peak Total System Efficiency70% until we get associated with low grade heat user (Intensive Ag, etc. then 80 to 90 % is believed to be obtainable)(Electrical + Thermal) state which fuel heating value usedDue to high gas cost we have developed price point relative to cost of gas and cost of electricity currently $7.85 per DThm. So for the last 4 months we have been thermal load following.Cooling system performance COPAbout 0.5 Coefficient Of Performance
11 Emission Performance Report on any emission testing done. Unable to test emissions and it’s not requiredNOx,CO, THC in ppm and gm/kWhNOx = 9 ppm gm/kWh publishedCO = 40 ppm gm/kWh “HC = 9 ppm gm/kWh “Are emissions in line with equipment suppliers estimates?Unable to answer
12 O&M Performance Availability? Due to redundancy, we never have a time when our generating system is down due to equipment failureWhat would be the current estimate of annual O&M costs excluding (including) major hot end replacement in total annual US$ and c/kWh?2 Year Extended Warranty is c.$65,000 total and covers all parts for all 25 turbines
13 Institutional Experience Due to low emissions, no EPA/DEC permits were required.We were required to use certified Mechanical Contractors and a P.E.Our electrical interconnection was simple as Capstone turbines were approved by utility, but gas connection was very difficult. Utility would only allow 20 psi. even though 55 to 60 was available. This added significantly to project cost due to need for three 10 hp gas compressors.
14 Supplier SupportGeneral Information that would be useful to suppliers in regard to product support:All our equipment suppliers have been reasonable and fair except for one which was our original heat exchanger manufacturer. That product has now been replaced by a superior one and we no longer deal with the original company.Adequacy of Technical Support and factory after sales support:We sent all (4) of our servicing technicians to be certified by Capstone. We have been able to provide 100% of our actual maintenance as a result with occasional phone assistance.Supply and Costs of Spare parts:We currently have an annual parts warranty which covers all microturbine parts.Warranty Issues:Our original microturbine warranty was extended to over 3 years due to unique and mutually beneficial learning opportunity.
15 General ExperienceWhat areas need to be improved for future installations?Better control of ambient cabinet air on indoor applicationsBetter sealing dampers to prevent blow back of hot exhaustSingle unit dispatching capabilityWhat is the opinion of the future market opportunities?We think that the microturbine offers a potential for low maintenance, reliable, environmentally friendly CHP.Experience has shown us that everything works best in Grid Connect with no load following and no DispatchingAre there any R&D or development areas that should be looked at?We think that efforts should be made to increase operating electrical efficiency and that alternatives to use waste heat better should be developed to offer customers a more complete solution. Potentials like Rankine Cycle, Hot Oil Heat Exchangers, etc. to enhance opportunities to take thermal potential to process requirements and other beneficial applications. We would also like to see efforts toward using Hythane as a minimum or full hydrogen if possible to encourage renewable energy hybrid systems as hydrogen could be an excellent energy storage medium to allow renewable energy to be dispatchable.