Marta Galant

Analysis of an Increase in the Efficiency of a Spark Ignition Engine Through the Application of an Automotive Thermoelectric Generator

We have analyzed the increase of the overall efficiency of a spark ignition engine through energy recovery following the application of an automotive thermoelectric generator (ATEG) of our own design. The design of the generator was developed following emission investigations during vehicle driving under city traffic conditions. The measurement points were defined by actual operation conditions (engine speed and load), subsequently reproduced on an engine dynamometer. Both the vehicle used in the on-road tests and the engine dynamometer were fit with the same, downsized spark ignition engine (with high effective power-to-displacement ratio). The thermodynamic parameters of the exhaust gases (temperature and exhaust gas mass flow) were measured on the engine testbed, along with the fuel consumption and electric current generated by the thermoelectric modules. On this basis, the power of the ATEG and its impact on overall engine efficiency were determined.

Risk Management of Hazards for Route Between Ławica – Kobylnica – Bednary Airports / Ocena Ryzyka Zagrożeń Na Trasie Ławica-Kobylnica-Bednary

Abstract The paper presents a risk management of hazards for route between Ławica - Kobylnica - Bednary airports. The evaluation was performed using a TRANS-RISK method. The authors introduced these airports, described the route and identified sources of hazards, risk and their consequences. To estimated the risk authors used risk assessment methodology - MICE SCORE. In summary, the identified risks are characterized by risk category defined as acceptable, tolerable or not acceptable. Streszczenie W artykule przedstawiono ocenę ryzyka zagrożeń dla przelotu na trasie Ławica - Kobylnica - Bednary. Oceny dokonano przy użyciu schematu zarządzania ryzykiem TRANS - RISK. Przedstawiono opisy wymienionych lotnisk, dokładnie opisano trasę lotu a następnie określono źródła zagrożeń, zagrożenia i ich skutki. Oszacowano ryzyko zagrożeń przy użyciu autorskiej metody szacowania ryzyka - MICE SCORE. W podsumowaniu określono jakie zagrożenia charakteryzują się kategorią ryzyka określoną jako akceptowane, tolerowane i nieakceptowane.