Emission Monitoring

The purposes of source emissions monitoring are to provide: 1) data and information from a regulated stationary source (facility) to demonstrate compliance with certain regulatory requirements, and 2) performance information to the facility operator so that corrective action can be taken, if necessary.

Continuous Emission Monitoring System (CEMS)

ASMA provides state-of-the-art CEMS solutions characterized by highly cost effective and optimum measurements as well as adherence to international standards. While our inventory of solutions encompass all modes of sampling techniques, our team of experts provides the best customized solution to meet the individual needs of the clients.
We are the sole distributor and agent for the leading brands of CEMS products, Teledyne Instruments of USA (Teledyne Advanced Pollution Instrumentation, andTeledyne Monitor Labs). Coupled with our vast experience and highly trained personnel, we provide industries with a complete range of CEMS products and services (including integration, training and maintenance) with guaranteed services to maintain maximum uptime and full compliance with the corresponding DOE Guidelines.

CEMS Technology :

  • In-situ Opacity/Dust monitoring.
  • Point In-situ SO2, NOx Monitoring.
  • Dry/Full Strength Extractive for Gasses
  • Dilution Extractive for Gasses.
  • Providing certification testing of system-RAA & RATA.
  • Online CEMS Reporting System.
  • DOE Guideline-compliant software.

Predictive Emission Monitoring System (PEMS)

In 2009, ASMA made a smart joint venture with CMC Solutions, a leading provider of PEMS or Predictive Emission Monitoring Systems, and the most advanced emissions monitoring solutions available on the market today. Together with CMC Solutions, ASMA start a successfully kick-start PEMS project with Tenaga Nasional Berhad (TNB) to develop PEMS system on their two gas turbine combined cycle units at Tuanku Jaafar Power Plant, Port Dickson, Negeri Sembilan.
Predictive Emissions Monitoring Systems (PEMS) are cost-effective solutions for compliance monitoring. PEMS have been demonstrated to be accurate and highly reliable when compared to Continuous Emissions Monitoring Systems (CEMS) in independent field tests conducted in accordance with U.S. EPA tests methods and procedures. PEMS was designed to provide advanced and superior emissions monitoring capability and are guaranteed to pass certification testing. PEMS is an alternative to CEMS.
ASMA PEMS products are specifically designed to empower operations to accurately predict process and emissions parameters utilizing standard database nad networking components.

Stack Monitoring & Assessment

For stack sampling, the US EPA isokinetic methods are used. This is in line with the DOE requirements on stack testing.

US EPA Method :-.

  • 1-Determination of traverse points.
  • 2-Determination of stack gas velocity.
  • 3-Determination of dry molecular weight
  • 4-Determination of moisture content.
  • 5-Determination of particulates (dust).
  • 6-Determination of sulphur oxides.
  • 7-Determination of nitrogen oxides.
  • 23-Determination of dioxin and furan.
  • 26-Determination of hydrogen halides
  • 29-Determination of heavy metals.

Isokinetic sampling is to extract the contents of the emission with the same flow rate as the flow of the stack. The initial US EPA Methods 1-4 define the conventions utilised to gather the primary information required to perform isokinetic source testing. This information includes traverse points, stack gas velocity, volumetric flow rate, moisture content, excess air and dry molecular weight of the stack emissions. This data is important for the determination of nozzle size, sampling flow rate and other parameters required to adhere to isokinetic sampling principles.

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