http://hdl.handle.net/20.500.14044/38306 2026-07-26T22:19:30Z 2026-07-26T22:19:30Z Minh Nguyen, Huyen http://hdl.handle.net/20.500.14044/38552 2026-05-19T11:41:44Z 2020-01-01T00:00:00Z

Ranking list and roadside environmental traffic inspections for transport greenering in Hungary Minh Nguyen, Huyen E.A.F. Bayoumi Hamuda, Prof. Dr. Hosam Air pollution is one of the most significant environmental concerns. It can cause adverse health effects like cancer, cardiovascular diseases and high levels of mortality. High population size is a key contributory factor to air pollution in industrial and metropolitan areas. This article focuses on pollution caused by vehicles, presents extensions to the current methods and future methodologies that are used to the decarbonisation of transport and to estimate the association between air pollution exposure and the risks to human health. This paper is centered around two specific topics, all of which focus on greenering transport. First is about air quality problems in Hungary caused by transport and the possible environmental projects ranked by KTI expert group for decision makers to choose the appropriate one for solve current problems; the second is a practical one, presents a special Hungarian project for greenering transport: a roadside inspection survey of the actual vehicles’ technical condition and its emission in traffic, to explore the causes of high emissions, to look for ways to reduce emissions; to make feasibility studies for options of greenering and to plan action projects based on these feasibility studies.

2020-01-01T00:00:00Z Nguyễn, Thùy Linh http://hdl.handle.net/20.500.14044/38549 2026-05-19T11:36:11Z 2020-01-01T00:00:00Z

Perspectives for using clean and energy efficient road vehicles Nguyễn, Thùy Linh E.A.F. Bayoumi Hamuda, Prof. Dr. Hosam The development of the economy promotes the growth of the travel market, creating challenges and opportunities for the development of the transportation system. Increased income and personal demands are also conditions for people to buy and use vehicles. Habits and needs are one of the main leading causes of environmental pollution, especially air pollution. This article focuses on the pollution caused by vehicles. The process of checking the quality of a car before it is put into production is very complicated, combining many inspection steps. This article is about the PEMS method that meets Euro 6 standards, should be widely applied in the future not only for passenger cars but also for heavy vehicles and others. According to the measurements, Volkswagen Golf met the Euro 6b limits for the NEDC and PEMS test in lighter conditions. Detected values were well below the limit value. Skoda Octavia is well below the limit value for carbon monoxide in the RDE-PEMS test; however, NOx emissions were 2-3 times higher than in the NEDC test. Emissions of vehicles in the laboratory test are different from the actual environment, so the use of PEMS for vehicle testing is necessary.

2020-01-01T00:00:00Z Szeder, András http://hdl.handle.net/20.500.14044/38543 2026-05-19T11:35:16Z 2020-01-01T00:00:00Z

Environmental of aircraft maintenance and renovation at the Liszt Ferenc repair base - summary Szeder, András E.A.F. Bayoumi Hamuda, Prof. Dr. Hosam During my research I tried to draw attention to the environmental risks arising during the activities of the airplane repair base at Liszt Ferenc Airport. Since its foundation, 58 Boeing and 42 Airbus aircraft have rolled out of the Liszt Ferenc repair base in a brand new, refurbished condition. It is worth mentioning here that in a hangar they usually deal with the repair of two machines at the same time. It is planned that over time, wide-body aircraft will also be repaired in Hungary. In my research I describe the environmental problems caused by transport, including aviation. I describe the emissions to the environment during the maintenance and renovation of aircrafts at the repaiar base. Within this topic, I would like to discuss in more detail the problems of waste generation, waste management, wastewater discharge, noise pollution and air pollution in the light of the technological processes of maintenance, repairs and renovations. In addition to the effects on the environment, special attention must be paid to the effects that adversely affect the health of the workers on the Repair Base. In the course of my work, I focus on one of the most critical technologies of major repairs, paint removal in connection with the renovation of machine bodies, and air pollution during the painting process. I examined the extent of personal exposure of workers and the qualitative and quantitative characteristics of air pollution, taking into account the presence of toxic substances that are extremely harmful to health and the environment. My aim is to highlight the critical points associated with environmentally harmful emissions in order to protect the environment and the health of workers, and to draw attention, where necessary, to the need to take appropriate measures. It would be useful to extend the scope of separate collection not only to paper and wood waste, but also to other recyclable waste materials. The waste on the base is transported, disposed of and recycled by specialized companies contracted for this purpose only.

2020-01-01T00:00:00Z Bodáné-Kendrovics, Rita http://hdl.handle.net/20.500.14044/38537 2026-05-19T11:34:18Z 2020-01-01T00:00:00Z

Project education is a strategy of project pedagogy Bodáné-Kendrovics, Rita E.A.F. Bayoumi Hamuda, Prof. Dr. Hosam The new strategy of higher education - Graduation in Higher Education, Guidelines for the Development of Performance-Based Higher Education - expects a higher proportion of practice-oriented education in engineering education, as it provides the basis for the development of professional competencies. This includes in particular the co- emergence of knowledge, skills, attitudes and the ability to take responsibility. The competency development of students majoring in environmental engineering s need to be supported by field work and practical activities based on examples taken from the real life problems and the solutions. Practice-oriented education promotes the development of internal, self-regulatory motivation, which is necessary for the further acquisition of knowledge in an individual way, for the development of ability of lifelong learning. By providing an opportunity to expand the teaching-learning space and considering fieldwork as an integral part of the training, project education creates the conditions for competence-based training, contributes to the development of responsible, environmentally conscious behaviour towards the environment, as well as the system approach that is essential for engineering activities.

2020-01-01T00:00:00Z