1 / 12

IMPLICATIONS OF NATURAL GAS INTERCHANGABILITY FOR CALIFORNIA GAS CUSTOMERS

IMPLICATIONS OF NATURAL GAS INTERCHANGABILITY FOR CALIFORNIA GAS CUSTOMERS. Industrial and Commercial Burners – GTI lead Appliances – LBNL lead David Rue, GTI, August 9, 2005. Interchangeability is Defined As -.

lyris
Download Presentation

IMPLICATIONS OF NATURAL GAS INTERCHANGABILITY FOR CALIFORNIA GAS CUSTOMERS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. IMPLICATIONS OF NATURAL GAS INTERCHANGABILITY FOR CALIFORNIA GAS CUSTOMERS Industrial and Commercial Burners – GTI lead Appliances – LBNL lead David Rue, GTI, August 9, 2005

  2. Interchangeability is Defined As - The ability to substitute one gaseous fuel for another in a combustion application without materially changing operational safety or performance and without materially increasing air pollutant emissions Source – NGC+ Working Group on Interchangeability White Paper presented to FERC, Feb. 2005

  3. What Needs to be Learned?

  4. Industrial and Commercial Burners • Often much high capacity than appliance burners • Much more tightly controlled – air/fuel ratio is in range where small differences change performance • Burners are always part of a combustion system • Quest for efficiency and low emissions produces burner types sensitive to fuel gas changes • Interchangeability indices will be different from those relevant to appliance burners

  5. Industrial Burner Interchangeability • Commercial and industrial combustion systems to be evaluated • Most process sensitivity with changing flame conditions • tightest emissions regulations will be identified • Greatest concern with stable operation • Effects of fuel changes will be measured for • Operating characteristics – gases, blending, switching, air/fuel ratio, turn down. • Performance characteristics – flame length and shape, flame temperature, heat flux, flame stability, etc. • Regulatory characteristics – emissions, opacity, air quality, etc.

  6. Project Tasks

  7. Task 1 • The objective is to prepare for industrial and commercial burner interchangeability studies emphasizing burners of importance in California • Work period – 3 months • Start date – by Sept. 1, 2005 • Participants – GTI .

  8. Task 1 Activities • Literature review – burner studies, protocols, indices proposed, etc. • Review of industrial burners and control systems in common use • Review previous listing – including SoCalGas • Discuss with major burner makers • Protocol selection, modification, and development • Natural gas, LNG, unconventional gas ranges of composition and heating value for testing

  9. Protocols • Gas preparation, metering, blending, etc. • Test procedures for burner operating conditions, test order, gas switching, control system operation, etc. • Monitoring procedures to track flame characteristics and heat transfer • Means to track emissions including NOx, CO, unburned hydrocarbons, particulates, and trace species

  10. Collecting Information • Gas data collected from gas industry sources, LNG suppliers, blending calculations • Summarize and document available techniques for monitoring combustion equipment, suggest modifications as needed • Monitoring procedures selected from available methods, then listed, modifications proposed as needed • List standard emissions data collection methods and equipment that can be used

  11. Final Product From Task 1 • Final report containing • Literature review on industrial burner interchangeability • Burners and combustion systems with proposed sensitivity to interchangeability and prevalence in California • Protocols and suggested modifications documented and ranked by proposed priority • Natural gases, LNGs, and unconventional gases described along with basis for choices

  12. Tasks 2 Through 7 • Oversight committee of sponsors and experts will be formed • Task 2 will • review Task 1 report and finalize ranking of burners, protocols, and gases, • Select tests and test methods • Define reporting needs • Tasks 3-5 will involve testing and reporting • Task 6 will focus on exposure testing and will include validation by LBNL • Task 7 will involve analysis and modeling of industrial burners relative to interchangeability

More Related