DetailedSpecs_GASBENCH.pdf

A&CC Diesel Laboratory Gas Emissions Bench Detailed Specifications

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MSHA Approval and Certification Center Diesel Laboratory Detailed Specifications Document

Project Name:

MESD Diesel Lab Gas Emission Bench.

The MSHA Approval and Certification Center (A&CC) Triadelphia, WV, is seeking quotes for a Laboratory Emissions Bench for the analysis of raw gas emissions from diesel engines tested according to the requirements of 30 CFR, Part 7 Subpart E (Diesel Engines Intended for Use in Underground Coal Mines).

OBJECTIVES: Obtain Laboratory Emissions Bench for testing the raw gas emissions (CO, CO2, NO/NOX and CH4) from diesel engines for purposes of approval of said engines for underground mine use, QA testing, and technical support of agency mission. Provider of emissions bench will install and train lab personnel in the operation and maintenance of the equipment, and provide all necessary documentation for same.

The Laboratory Emissions Bench will meet or exceed the specifications found in the 30 CFR, Part 7, Subpart E, section §7.86 Test equipment and specifications:

https://www.ecfr.gov/cgi-bin/text-idx?SID=ca54db9e1d39480a81dc3533f56a66cb&mc=true&node=sp30.1.7.e&rgn=div6# se30.1.7_186.

See the accompanying Statement of Work for further details on the project.

Specifications:

The following information are details of the specifications required in the 30 CFR quoted above, and the specifications of the system to be replaced. New system must meet or exceed these specifications. Further information is provided in the form of diagrams from the CFR of the minimum system requirements and photos of the current installation as reference to location and orientation where new system is to be installed.

For other information on probe geometry line specifications, span gasses, etc. please consult the 30 CFR link above.

https://www.ecfr.gov/cgi-bin/text-idx?SID=ca54db9e1d39480a81dc3533f56a66cb&mc=true&node=sp30.1.7.e&rgn=div6#se30.1.7_186 https://www.ecfr.gov/cgi-bin/text-idx?SID=ca54db9e1d39480a81dc3533f56a66cb&mc=true&node=sp30.1.7.e&rgn=div6#se30.1.7_186 https://www.ecfr.gov/cgi-bin/text-idx?SID=ca54db9e1d39480a81dc3533f56a66cb&mc=true&node=sp30.1.7.e&rgn=div6#se30.1.7_186

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Requirement: 30 CFR Spec. Horiba Instrument Spec.

CO, CO2 measurement Dry basis Dry Basis CO, CO2 analyzer NDIR NDIR NOx analyzer NDIR or CL CL NOX Converter 90%+ efficient NO2 to NO conversion 90%+ efficient NO2 to NO conversion

Sample, span and cal. gas pass through converter

Sample, span and cal. gas pass through converter

NOx Sample Heated line and converter 131-392 degF

Heated line and converter 131-392 degF

NOx quench interference CO2, water vapor (CL)

<3% -3% FS @ CO2=12%

NOx analyzer rejection Rates (NDIR)

Water: 5000:1

CO2 30000:1

NOx water removal Condensation, water trap Condensation, water trap General Analyzer Specifications Total Measurement Error +/- 5% reading or

+/- 3.5% full scale If less than 100ppm, error +/- 4ppm

Repeatability Within 2.5 times 3S.D. of 10 responses, and Not > 1% FS range above 155ppm Not >2% FS range below 155ppm

NDIR +/-1% FS

CL +/-1% FS

Linearity CL: 1% FS Peak to Peak response < 2% FS over 10 sec period all ranges

Response Time: NDIR: 0.5-10 seconds CL: 2.5 sec

Zero Drift <2% FS on lowest range over 1 hour

NDIR: +/-1% FS over 8 hours (with Temp+/- 5degC) CL: +/-1% FS over 8 hours (with Temp+/- 5degC)

Span Drift <2% FS on lowest range over 1 hour

NDIR: +/-1% FS over 8 hours (with Temp+/- 5degC) CL: +/-1% FS over 8 hours (with Temp+/- 5degC)

CO analyzer NDIR, Water and CO2 interference

<1% FS range > 300ppm 3ppm for range <300ppm

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Ranges:

CO 0-1000ppm

0-2000ppm 0-4000ppm

CO2 0-10%

0-15%

NO/NOx 0-1000ppm 0-2000ppm

CH4 0-2%

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Drawings, Schematics:

The following pages are from the 30 CFR, Part 7 Subpart E specifications. They show diagrams of the minimum requirements of the gaseous sampling system for Category A and Category B engines. The proposed system is the same (and one unit) in either case, as the only difference is the use of a CH4 analyzer for Category A engines.

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The schematic of the gaseous sampling system shown in Figure E-1 shall be used for testing category A engines. Various configurations of Figure E-1 may produce equivalent results. The components in Figure E-1 are designated as follows—

(i) Filters—F1, F2, F3, and F4;

(ii) Flowmeters—FL1, FL2, FL3, FL4, FL5, FL6, and FL7;

(iii) Upstream Gauges—G1, G2, and G5;

(iv) Downstream Gauges—G3, G4, and G6;

(v) Pressure Gauges—P1, P2, P3, P4, P5, and P6;

(vi) Regulators—R1, R2, R3, R4, R5, R6, and R7;

(vii) Selector Valves—V1, V2, V3, V4, V6, V7, V8, V15, and V19;

(viii) Heated Selector Valves—V5, V13, V16, and V17;

(ix) Flow Control Valves—V9, V10, V11 and V12;

(x) Heated Flow Control Valves—V14 and V18;

(xi) Pump—Sample Transfer Pump;

(xii) Temperature Sensor—(T1);

(xiii) Dryer—D1 and D2; and

(xiv) Water traps—WT1 and WT2.

(A) Water removal from the sample shall be done by condensation.

(B) The sample gas temperature or dew point shall be monitored either within the water trap or downstream of the water trap and shall not exceed 45 °F (7 °C).

(C) Chemical dryers are not permitted.

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The schematic of the gaseous sampling system shown in Figure E-2 shall be used for testing category B engines. Various configurations of Figure E-2 may produce equivalent results. The components are designated as follows—

(i) Filters—F1, F2, F3, and F4;

(ii) Flowmeters—FL1, FL2, FL3, and FL4;

(iii) Upstream Gauges—G1, and G2;

(iv) Downstream Gauges—G3, and G4;

(v) Pressure Gauges—P1, P2, P3, and P4;

(vi) Regulators—R1, R2, R3, and R4;

(vii) Selector Valves—V1, V2, V3, V4, V6, and V7;

(viii) Heated Selector Valves—V5, V8, and V12;

(ix) Flow Control Valves—V9, V10, V11;

(x) Heated Flow Control Valves—V13;

(xi) Pump—Sample Transfer Pump;

(xii) Temperature Sensor—(T1); and

(xiii) Water traps—WT1 and WT2.

(A) Water removal from the sample shall be done by condensation.

(B) The sample gas temperature or dew point shall be monitored either within the water trap or downstream of the water trap and shall not exceed 45 °F (7 °C).

(C) Chemical dryers are not permitted.

(3) All components or parts of components that are in contact with the sample gas or corrosive calibration gases shall be corrosion-resistant material.

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The following pages show photos of the current installation of the laboratory gas emissions bench. General locations of new installation will be the same, with allowable adjustments for new technology and different footprint. Also shown is floorplan drawings of the rooms where the emissions bench and heated lines, oven and pump installations will be located (as marked).

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Figure 1: Horiba gas emissions Bench in Dyno Control Room.

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Figure 2: Another view of Horiba Emissions Bench in Dyno Control Room.

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Figure 3: Close -up of Analyzer Installation in Control Room Emissions Bench.

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Figure 4: Close up of Analyzer Exhaust Vent and Heated Line to Dyno Bay Heated Oven/Pump Installation.

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Figure 5: Heated Pump/Oven Installation (on wheels and mobile for access to two dynos).

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Figure 6: Heated Pump and Valves in Oven.

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Figure 7: Floor Plan of Dyno Bay and Control Room Areas. Location of

Lab Bench

General Area of Heated Oven/Pump

Approx. Path of heated line through Ceiling

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Figure 8: Close up of Control Room Floor plan.

Approx. Position gas emissions bench