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Title: Annual emissions and air-quality impacts of an urban area district-heating system: Boston case study

Abstract

A district-heating system, based on thermal energy from power plants retrofitted to operate in the cogeneration mode, is expected to improve local air quality. This possibility has been examined by comparing the emissions of five major atmospheric pollutants, i.e., particulates, sulfur oxides, carbon monoxide, hydrocarbons, and nitrogen oxides, from the existing heating and electric system in the City of Boston with those from a proposed district heating system. Detailed, spatial distribution of existing heating load and fuel mix is developed to specify emissions associated with existing heating systems. Actual electric-power-plant parameters and generation for the base year are specified. Additional plant fuel consumption and emissions resulting from cogeneration operation have been estimated. Six alternative fuel-emissions-control scenarios are considered. The average annual ground-level concentrations of sulfur oxides are calculated using a modified form of the EPA's Climatological Dispersion Model. This report describes the methodology, the results and their implications, and the areas for extended investigation. The initial results confirm expectations. Average sulfur oxides concentrations at various points within and near the city drop by up to 85% in the existing fuels scenarios and by 95% in scenarios in which different fuels and more-stringent emissions controls at the plants are used. Thesemore » reductions are relative to concentrations caused by fuel combustion for heating and large commercial and industrial process uses within the city and Boston Edison Co. electric generation.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
5227005
Report Number(s):
ANL/CNSV-TM-36
DOE Contract Number:
W-31-109-ENG-38
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; 29 ENERGY PLANNING, POLICY AND ECONOMY; AIR QUALITY; DISTRICT HEATING; ENVIRONMENTAL IMPACTS; MASSACHUSETTS; POLLUTION SOURCES; EMISSION; AEROSOLS; CARBON MONOXIDE; CO-GENERATION; COMPARATIVE EVALUATIONS; HEATING SYSTEMS; HYDROCARBONS; NITROGEN OXIDES; PARTICLES; SULFUR OXIDES; URBAN AREAS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; COLLOIDS; DEUS; DISPERSIONS; ENVIRONMENTAL QUALITY; HEATING; NITROGEN COMPOUNDS; NORTH AMERICA; NORTH ATLANTIC REGION; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POWER GENERATION; SOLS; STEAM GENERATION; SULFUR COMPOUNDS; USA; 320603* - Energy Conservation, Consumption, & Utilization- Municipalities & Community Systems- Public Utilities- (1980-); 500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989); 290800 - Energy Planning & Policy- Heat Utilization- (1980-); 290300 - Energy Planning & Policy- Environment, Health, & Safety

Citation Formats

Bernow, S.S., McAnulty, D.R., Buchsbaum, S., and Levine, E. Annual emissions and air-quality impacts of an urban area district-heating system: Boston case study. United States: N. p., 1980. Web. doi:10.2172/5227005.
Bernow, S.S., McAnulty, D.R., Buchsbaum, S., & Levine, E. Annual emissions and air-quality impacts of an urban area district-heating system: Boston case study. United States. doi:10.2172/5227005.
Bernow, S.S., McAnulty, D.R., Buchsbaum, S., and Levine, E. Fri . "Annual emissions and air-quality impacts of an urban area district-heating system: Boston case study". United States. doi:10.2172/5227005. https://www.osti.gov/servlets/purl/5227005.
@article{osti_5227005,
title = {Annual emissions and air-quality impacts of an urban area district-heating system: Boston case study},
author = {Bernow, S.S. and McAnulty, D.R. and Buchsbaum, S. and Levine, E.},
abstractNote = {A district-heating system, based on thermal energy from power plants retrofitted to operate in the cogeneration mode, is expected to improve local air quality. This possibility has been examined by comparing the emissions of five major atmospheric pollutants, i.e., particulates, sulfur oxides, carbon monoxide, hydrocarbons, and nitrogen oxides, from the existing heating and electric system in the City of Boston with those from a proposed district heating system. Detailed, spatial distribution of existing heating load and fuel mix is developed to specify emissions associated with existing heating systems. Actual electric-power-plant parameters and generation for the base year are specified. Additional plant fuel consumption and emissions resulting from cogeneration operation have been estimated. Six alternative fuel-emissions-control scenarios are considered. The average annual ground-level concentrations of sulfur oxides are calculated using a modified form of the EPA's Climatological Dispersion Model. This report describes the methodology, the results and their implications, and the areas for extended investigation. The initial results confirm expectations. Average sulfur oxides concentrations at various points within and near the city drop by up to 85% in the existing fuels scenarios and by 95% in scenarios in which different fuels and more-stringent emissions controls at the plants are used. These reductions are relative to concentrations caused by fuel combustion for heating and large commercial and industrial process uses within the city and Boston Edison Co. electric generation.},
doi = {10.2172/5227005},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 1980},
month = {Fri Feb 01 00:00:00 EST 1980}
}

Technical Report:

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  • A study was made to determine the potential impact of a district-heating/cogeneration system on the air quality in the Minneapolis-St. Paul metropolitan area. Annual average SO/sub 2/ concentrations in air at ground level were determined for a base year (1976) and for a future year (1987) with and without a 2600-MW(t) district-heating system. Without district heating, the SO/sub 2/ concentrations in the area are predicted to increase with time because of anticipated increased substitution of oil for curtailed natural gas. Implementation of the district-heating/cogeneration system is predicted to mitigate this increase of SO/sub 2/ concentrations significantly. Although the total emissionsmore » will be slightly higher with district heating/cogeneration because of the substitution of coal for natural gas and oil, use of tall stacks at the cogeneration plants will permit greater dispersion of the SO/sub 2/ emissions. Considerable overall energy savings, particularly in the form of natural gas and oil, will be realized with a district heating/cogeneration system.« less
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