LOW EMISSION DIESEL POWER SUPPLY
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| Overview: | The use of low emission diesel engines as a
power supply for mobile air conditioners will reduce emissions at activities in addition
to meeting 1996 federal and state standards for emissions from off-road industrial diesel
engines. State standards vary from state to state. However, meeting the most
stringent standards of California will result in meeting other states' emission standards.
Existing mobile air conditioners will require retrofitting as they are all
currently powered by a Detroit Diesel Model 6V-71. A study conducted for the Navy evaluated several engines on the basis of meeting emission standards, performance specifications for the air conditioner, use of jet fuel, and the ability to fit the present engine space envelope. The John Deere 6081A engine met all requirements. Two other engines, manufactured by Cummins and Caterpillar, could be considered with some modifications in engine design. The mobile air conditioners will require some modifications to accept the new engines. The radiator and oil cooler of the air conditioner will need to be extended slightly outward. Because these engines are longer than the 6V-71 engine, relocation of the engine mounts and a suitable connecting structure to distribute the load within the base frame will also be required. |
| Compliance Benefit: |
The use of low emission diesel engines as a power supply for mobile air conditioners will
reduce emissions and therefore, may decrease the need for a facility to obtain an air
permit under 40 CFR 70 and 40 CFR 71. The compliance benefits listed here are only meant to be used as a general guideline and are not meant to be strictly interpreted. Actual compliance benefits will vary depending on the factors involved, e.g. the amount of workload involved. |
| Materials Compatibility: | No materials compatibility issues were identified. |
| Safety and Health: |
Consult your local industrial health specialist and your local health and safety personnel
prior to implementing this technology. |
| Benefits: |
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| Disadvantages: |
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| Economic Analysis: |
Labor, material, system maintenance, and energy requirements will remain the same with the
new low emission diesel power supply engine for the mobile air conditioner because the new
engine is required to provide the same performance (horsepower and torque range) as the
existing Detroit diesel engine. The mobile air conditioner is considered a stationary source of air emissions. With the engine retrofit, there is a reduction in air emissions and therefore a reduction in emission fees if there is a significant number of these units at an activity. On a per unit basis, the reduction in emission fees is insignificant. The cost savings in emission fees when compared to the cost of the retrofit engine at approximately $40,000 will not result in a favorable payback period. |
| Approving Authority: |
Approval is controlled locally and should be implemented only after engineering approval
has been granted. Major claimant approval is not required. |
| NSN/MSDS: | None Identified. |
| Points of Contact: |
Navy: Mr. Jim Ambrosino Naval Air Warfare Center, Aircraft Division Lakehurst, NJ Phone: (732) 323-7904 FAX: (732) 323-4917 DSN: 624-7904 Email: ambrosinoja@navair.navy.mil |
| Vendors: | This is not meant to be a complete list, as
there are other manufacturers of this type of equipment Deere Power Systems P.O. Box 5100 3801 West Ridgeway Waterloo, IA 50701 Phone: (319) 292-6060 or (800) 533-6446 FAX: (319) 292-5075 URL: www.johndeere.com/engines Cummins Engine Company |
| Sources: | Mr. Al Telcak, SEMCOR, Inc. (609)
234-6600. May 30, 1996 Mr. Phil Norton, Keco Industries. (606) 525-2102. June 14, 1996 San Diego County Air Pollution Control District Rules and Regulations. Rule 69.4 - Stationary Reciprocating Internal Combustion Engines.
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