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The paper presents the mechanism of the wing in ground effect formation, also shows the structure of wing in ground craft, and race car, which uses wing in ground effect. Results of numerical analysis are as expected, which means, the lift coefficient is higher for positive angles of attack, and lower for negative angles of attack. The paper details also characteristics of lift and drag coefficients...
The article presents the safety issue bonded to the Polish Air Force aircrafts, which uses for emergency supply special fuel called hydrazine, which is 70% aqueous solution of toxic hydrazine with designation H-70. For this reason, the rescue services of Polish Air Force bases where this types of aircraft are stationed had to be adjusted accordingly. Just as importantly authors noticed that in the...
The article analyzes the exhaust gases from the vehicle pickup during drive tests. The research was carried out on a vehicle of this type because of the growing vehicle sales of this type of chassis in both domestic and European level. The study was conducted in Poznan, two drives of the same track were performed - economic and dynamic. To test the exhaust emission was used PEMS apparatus (Portable...
The article aims to highlight the desirable and undesirable properties and characteristics of different energy storage technologies. It focuses on the comparison between the different specific battery technologies and supercapacitors currently available on the market, as well as novel technologies that are still in development. Assessment is made for these technologies based on their strong and weak...
The share of rail transport in transportation of goods in Poland has been declining for many years. The chance to reverse this negative trend lies in an intermodal freight transport, which takes advantage of multiple modes of transportation. It is widely used in Western Europe. However, in Poland, there are not enough railroad terminals which would enable handling of containers. There are four times...
The paper presents the results of investigations related to the possibilities of control of the radio aerial mast carried out on a test stand reproducing the inverted pendulum phenomenon using servo drives and LabVIEW environment. The authors present individual components of the stand and the measurement equipment used in the experimental investigations.
The article presents the results of the technical and economic use of cogeneration technologies designed to increase the efficiency of use of natural gas to produce electricity and heat for the needs of large objects. The arrangement shown is part of the distributed generation of electricity and heat. As a supplement can be used such systems as ORC systems, heat pumps, solar collectors and photovoltaic...
In this article authors researched maintenance system of the multirole F-16 aircraft. For the study purposes, the F-16 maintenance system model has been created. From this model, the main analysis domain was derived, comprising „Minor aircraft objects discrepancies removal” process. Considering such an analysis domain, on the basis of the schematic diagram of the hazard identification process, authors...
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