SBIR-STTR Award

The project aims to engage in detailed definition and preliminary design of the 1.5 to 2.5 kW heavy-fuel diesel-hybrid power system and its subsystems, performance analysis for the subsystems and the system, exploration of its feasibility including costs and risks, comparative performance analysis and assessment of other competing power and energy technologies, and preparation of a plan for development of the hybrid power unit.

Benefits:
Benefits from the proposed system include about 7 x better power/volume and 7 x better power/weight compared to conventional diesel generator sets. The system will also avoid wet-stacking, and will minimize R&D and production costs by creating M-COTS versions of high-performance small utility gasoline engines to operate them on heavy fuels. Anticipated commercial applications include : back-up power for the smaller emergency and commercial establishments such as clinics, schools, hotels, restaurants, retail stores and gas stations, back-up power for residences, prime power for smaller hybrid-electric vehicles such as personal city vehicles, and boats or other recreational vehicles for their electrical and kitchen loads

Keywords:
UGV hybrid power diesel JP8 heavy-fuel kW

The project aims to develop a 1.5 kW ¨C 2.5 kW Heavy Fuel hybrid power system / portable generator set that occupies 0.6 cu. ft. of volume and weighs about 20 lbs. The proposed D-STAR system, DGS4-2k, features a Modified Commercial Off-The-Shelf (M-COTS) high-speed engine, a Permanent Magnet starter generator, electronic power conversion to use (for starting) and provide 28 V DC electric power, all accessories for stand-alone operation, and encapsulation to achieve noise levels ¡Ö 66 - 69 dB(A) at 7 meters. The system also has variable-speed load following to avoid wet-stacking, and has high operating frequencies to minimize transfer of noise and vibrations to the ground or the environment. For the Phase 1, the project tasks include : conversion of a cots engine into a high-speed heavy fuel engine, integration with high-speed permanent magnet starter-generator (PMSG), and development & demonstration of an integrated, encapsulated hybrid power system.

Keywords:
Heavy Fuel Hybrid Power System Portable Generator Set