Developments necessary to extend life and improve reliability/performance of ceramic smoke traps for diesel-engined vehicles
The Urban Bus Smoke Trap System Development Project is a joint operation of the Laboratory of Applied Thermodynamics, Aristotle University and the Athens Urban Transport Corporation. The systems developed for the buses are based on the forced regeneration of the diesel engine by exhaust throttling, which is the most successful regeneration technique in existence. The three-year long experiments with three generations of trap systems and various regeneration systems have led to the development of two alternative trap systems with different regeneration philosophies. Five of the experimental buses are fitted with second generation systems with stationary regeneration and five with third generation systems with on-road regeneration. The on-road regeneration philosophy with the third generation trap resulted in the most successful application of the technique and forms the basis for any future developments on the project. From this specific project an optimum solution to bus retrofitting with smoke traps was developed. The question of trap service life remains unanswered, as well as the achievement of absolute operational reliability, which would lead to product design optimisation, enabling its installation as a routine engine part. The accumulation of cost and time data necessary for a techno-economic study of the application of the ceramic smoke trap on the total bus fleet remains to be done. Also, both the packaging material and the ceramic filter must be tested for a minimum of 100,000 km on the buses.
Bibliographic Reference: EUR 12126 EN,EL (1989) 47 pp., MF, ECU 4, blow-up copy ECU 6.25
Record Number: 199010306 / Last updated on: 1994-12-01
Original language: en
Available languages: en,el