Presentation on theme: "Clean Diesel Construction Requirements of the Port Authority of NY & NJ Dorian Bailey, Supervisor Chemical/Environmental Testing Engineering Department."— Presentation transcript:
Clean Diesel Construction Requirements of the Port Authority of NY & NJ Dorian Bailey, Supervisor Chemical/Environmental Testing Engineering Department
Rebuilding of the World Trade Center 1)Submit a Diesel Engine Emission Mitigation Plan 2)Follow Diesel Engine Anti-Idling Policy 3)Use Ultra Low Sulfur Diesel (ULSD) Fuel 4)Meet or Surpass Diesel Construction Equipment Age Requirements (Tier 2) 5)Install Best Available Technology on > 50 HP Environmental Performance Commitments “EPC” Requirements
New York City Local Law 77 “LL77” Requirements 1)Use Ultra Low Sulfur Diesel (ULSD) Fuel 2)Consider nitrogen oxides and particulate matter strategies 3)Install Best Available Technology on > 50 HP Category I – retrofit tailpipe devices with the highest reductions in pollutants Category 2 – retrofit tailpipe devices with the lower reductions in pollutants Category 3 – Other fuel-change based emission reductions
Agency Wide Clean Diesel Specifications Awarded in 2009 with total construction costs of $10 million or greater; Awarded in 2010 with total construction costs of $5 million of greater; Awarded in 2011 with total construction costs of $1.5 million of greater; All contracts awarded in 2012 or later Clean Diesel Specification Phase in Period
Agency Wide Clean Diesel Specifications Applicability: All land based and barge mounted diesel powered construction equipment (Specifically excludes marine) Site Implementation: Immediate, i.e., all equipment must arrive on site meeting requirements Contract Book Location: Division 1: Diesel Fuel
Submittal Requirements Excel format preferred initially and for updated inventories Onsite/off site dates Make, manufacturer, model, and serial numbers for: (1) engine (2) equipment and (3) retrofit EquipmentEngineRetrofit Anticipated function, days and hours Model year, Tier Rating, HP Installation dates Duration of use on project Fuel consumption per shift Prior waivers or BAT determinations
Diesel Engine Anti-Idling Policy The idling time of Non-Road and On-Road Vehicles shall be limited to three (3) consecutive minutes except as follows: On-Road Vehicle is forced to remain motionless because of traffic conditions or mechanical difficulties over which the operator has no control When it is necessary to operate defrosting, heating, cooling or auxiliary equipment. Exempts cranes and concrete mixers when necessary. To bring the vehicle to the manufacturer’s recommended operating temperature. When the outdoor ambient temperature is below 20°. When the vehicle is being actively worked on for repairs or maintenance and idling is needed to effectuate repairs.
ULSD and Other Fuels ULSD (15 ppm) is required, which has been nationally available at on-road pumps since 2006 Biodiesel, emuslfied diesel, oxy-diesel and fuel borne-catalysts alone will not meet PA BAT approval
Newer Engines (Tier Levels) Preliminary EIS modeling for the Goethals Bridge Replacement Project shows a possible need for Tier 2 Engines with BAT Agency wide specification mandates Tier 1 engines EPC driven specifications for Lower Manhattan rebuilding requires Tier 2 engines PA may move to a Tier 2 minimum standard after full implementation
Best Available Technology (BAT) Diesel Oxidation Catalysts (DOC) Flow Through Filters (FTF) Diesel Particulate Filters (DPF) All equipment > 50 HP must be retrofitted with emission control devices, such as:
Diesel Oxidation Catalyst Smallest PM reductions (20 – 33%) Waivers required for use on equipment >75 HP Easiest, cheapest installation No backpressure or maintenance issues Figure 1:
Flow Through Filters (FTF) More efficient PM removal than DOC (~50%) Waivers required for use on >75 HP Source: Catalyzed mesh or torturous path filters Some cleaning/maintenance Passive regeneration temperature requirements
Diesel Particulate Filter BAT “Gold Standard” for PM PM Removal Efficiencies (>90%) Active or passive filter media regeneration Figure 2: Active regeneration must be considered for higher HP applications with low exhaust temps
BAT Summary General PM Removal %: DPF > FTF > DOC For HP, FTF or DOC is acceptable. No waiver required Devices should be verified by CARB or EPA Compliance is field verified!
Waivers Active regeneration must be considered Economic analysis of retrofit cost to equipment value Reciprocity (3 years for BAT) a. Safety/visibility b. Void the engine warranty c. Other mechanical reasons d. Can’t upgrade Tier 0 to 1 e.Cost: 30 percent of the fair market value of the construction equipment f.Engineer’s discretion
Questions? At the Port Authority, we are committed to a greener tomorrow. Thank you!