7-18 Air Dispersion Modeling Report
Please clarify whether Combustion Source No. “AE-8 LP Fuel Gas Dew Point Heater” listed in “Air Emission Sources (Combustions Sources)” table/text box: is proposed for installation at the facility. If proposed for installation, please describe purpose, size, and rationale for not including this source in the model report text, emission calculations, modeling files, air permit application, etc.
RESPONSE 7-18
| Only a single dew point heater is needed for the Project. Invenergy has determined that it will not install a second dew point heater that was labeled as AE-8 LP Fuel Gas Dew Point Heater at the facility. The purpose of the Dew Point Heater is to heat the fuel when the pipeline gas pressure is greater than approximately 700 psig, when this happens the pressure needs to be reduced to match the pressure required by the combustion turbine and the pressure reduction creates a cooling effect that must be controlled to prevent freezing of the gas pressure regulator.
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RESPONDENT:
| Michael Feinblatt, ESS Group, Inc.
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DATE: | May 17, 2016
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