A NEW EMISSION INVENTORY OF POWER PLANTS AND INDUSTRIAL FACILITIES IN THAILAND PHAM THI BICH THAO, KASEMSAN MANOMAIPHIBOON*, and CHATCHAWAN VONGMAHADLEK For Better Air Quality (BAQ) Conference Dec., 2006, Yogyakarta, Indonesia Joint Graduate School of Energy and Environment (JGSEE) King Mongkut’s University of Technology Thonburi (KMUTT) Bangkok, Thailand *Corresponding Author:

Emission Inventory INTRODUCTION  A comprehensive listing by sources of air pollutant emissions in a geographic area during a specific time period  Important and useful in air quality management, planning, as well as modeling Source: US EPA

Impact & Policy Assessment Environmental Strategy Policies Controls Environmental Goals Technical Feasibility Economic Issues Political Implications Environmental Impacts Human Health Ecosystem Economic Atmospheric Processes Pollutant Distributions Atmosphere Air Quality Management Cycle Emissions INTRODUCTION

Scope of Work  Emissions covered: NOX, SO2, NMVOC, CO, NH3, OC, and BC  Reason: To support air quality studies of ozone and fine particulate matter for Thailand  Emission sources:  EGAT, IPP, and SPP  Onshore industrial facilities  Base year: 2004  Domain: Entire Thailand INTRODUCTION  Results shown here: Interim + Subject to double checking as part of QA process (ongoing)

Thailand & Its regions INTRODUCTION Region No. of Power Plants % No. of Industrial Facilities a % Central , Eastern , Northern , Northeastern , Southern119.59, Source: Department of Industrial Works a) Excluding power plants

General Approach where E: Emission rate [mass per time], EF uncontrolled : Emission factor without control technology [mass per activity unit], EF controlled : Emission factor with control technology [mass per activity unit], A: Activity rate [activity unit per time], and ER: Control efficiency (in percent) METHODOLOGY

Emission Estimation Diagram METHODOLOGY Fuel consumption (Source Specific) EGAT Power Plants IPP Top-down Bottom-up SPP Controlled EFs Fuel Consumption Uncontrolled EFs Semi Bottom-up Installed Capacity Uncontrolled EFs Annual Emission Estimates Industrial Facilities Top-down Industrial Production Uncontrolled EFs Industrial Facilities Energy Consumption Industrial Processes

Emission Factors NOXSO2NMVOCCONH3BCOC Power Plants EGATAP-42 IPCCAP-42EIIP Cao et al. (2006) a IPPAP-42 IPCCAP-42EIIP SPPIPCCAP-42IPCC EIIP Industrial FacilitiesIPCCAP-42IPCC EIIP METHODOLOGY a)Cao et al (2006) Inventory of black carbon and organic carbon emissions from China. Atmospheric Environment 40,

 Emission control in EGAT and IPP:  Low-NOX burner and water injection  No emission control for CO & NMVOC  No emission control in SPP & industrial facilities  Average operation of industrial facilities:  48 hours/week METHODOLOGY Assumptions

Energy Consumption by TSIC a (in percent) METHODOLOGY a) Thai Standard Industrial Classification Source: Department of Alternative Energy Development and Efficiency

Emission Estimates for Thermal Power Plants by Region RESULTS

Emission Estimates for Industrial Facilities by Region - Energy Consumption

RESULTS

Emission Estimates for Industrial Facilities by TSIC - Energy Consumption RESULTS

Emission Estimates for Industrial Facilities by TSIC - Industrial Processes RESULTS SO2 (10 3 ton)273.2 NMVOC (10 3 ton)13.5 CO (10 3 ton)57.3

Comparison to Past Emission Inventories RESULTS This study (2004) TRACE-P (2000) JICA (2000) DEDE (2004) NOX (10 3 ton) SO2 (10 3 ton) CO (10 3 ton) 719.9NA 209

 Development of temporal distribution profiles of emission sources  Spatial allocation  Physical characterization of emission sources (e.g., stack parameters and locations) Ongoing Work

Acknowledgments  Suthisa Sanguantrakool (Department of Alternative Energy Development and Efficiency)  Piyavadee Limvoranusorn (Pollution Control Department)  Dr. Sirakarn Leungsakul (Department of Industrial Works)  Dr. Decha Pimpisut (Department of Industrial Works)  Assoc. Prof. Dr. Prungchan Wongwises (JGSEE)  Electricity Generating Authority of Thailand (EGAT)  Joint Graduate School of Energy and Environment (JGSEE).

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