Cs Papp

57985363700

Publications - 5

Fire simulation of different complex geometry tree objects using FDS

F. Hajdu Rajmund Kuti Cs Papp

Publication Name: Pollack Periodica

Publication Date: 2025-06-27

Volume: 20

Issue: 2

Page Range: 67-72

Description:

Fire simulations are becoming more and more widely used in fire protection practices. In order to achieve more accurate results, it is inevitable that simulations are always developed. This study investigates the fire behavior of various complex wooden geometries. This research aims to enhance the understanding of fire propagation of different geometries made of wood. The simulations are performed using fire dynamics simulator, which incorporates heat transfer, combustion, and fluid dynamics principles. Key parameters like temperature and heat release rate are analyzed for each of tree geometries. The research contributes to the development of more accurate fire models. It also provides the basis for further development of simulations including more complex geometries.

Open Access: Yes

DOI: 10.1556/606.2024.01225

Investigation of combustion gases of Li-ion, Ni-Cd and Pbq batteries

Rajmund Kuti Zsuzsanna Kerekes Cs Papp István Benke

Publication Name: Pollack Periodica

Publication Date: 2023-07-11

Volume: 18

Issue: 2

Page Range: 101-106

Description:

Appliances used in everyday life, like smart phones, notebooks; do-it-yourself machineries usually operate with battery instead of power supply. It means comfort to users however; they expose them to different dangers. In the last few years, several fire cases happened in connection with these appliances while charging and usage, which have driven the attention to the dangers of battery technology. Regarding the actuality of the topic, combustion products developing during the burning process of batteries with 1:1 ratio burning experiments were investigated, experiences and results from that are represented in this paper. The aim of the research is to call the attention to the flammability properties of lithium-ion and other batteries, the possible dangers and in case of fire to support the involved personnel.

Open Access: Yes

DOI: 10.1556/606.2022.00638

INVESTIGATION OF TRAFFIC INDUCED DYNAMIC RESPONSE OF A BRIDGE

Zoltán Major P. Szalai Péter Horváth F. Hajdu Rajmund Kuti M. Brinissat Antal Apagyi Cs Papp

Publication Name: Strojnicky Casopis

Publication Date: 2023-05-01

Volume: 73

Issue: 1

Page Range: 85-102

Description:

Bridges are special structures that provide a transport connection between areas divided by a physical barrier. Vehicles passing over bridges cause vibrations in the structural elements of the bridge, which can damage these structural elements over time. The aim of our research was to investigate the vibrations generated by vehicles on Hungary's first steel girder welded bridge, which was subjected to the maximum allowable load. In this paper, we describe the measurements we have carried out, analyse the results, present the vehicle-bridge interaction model we have constructed and the computer simulation we have carried out by using it. Our research results are intended to contribute to accident prevention and the safe operation of bridges.

Open Access: Yes

DOI: 10.2478/scjme-2023-0007

Identification of Engine Damages of Vintage Vehicles with Tribological Examination

Rajmund Kuti Cs Papp

Publication Name: Fme Transactions

Publication Date: 2021-01-01

Volume: 49

Issue: 3

Page Range: 608-614

Description:

Nowadays, keeping vintage vehicles in operation is becoming more and more popular, however, the reparation of occurring engine malfunctions, and the supply of particulate engine parts mean severe expenses to the owners. In case of older engines, the failure detection is not performed with the help of computerized diagnostics. In several cases the detection of failure is only possible with the disassembly of the engine. A cost-effective solution may be the application of tribological examinations, with which, the malfunctions may be revealed without the needless disassembly of the engine. The purpose of our research is to represent through the tribological examination of a VAZ-2101 (also known as Lada) engine type the practical application of the method, data analysis, evaluation of results and the steps of failure detection.

Open Access: Yes

DOI: 10.5937/fme2103608P

Determination of Measurement Parameters for Vibration Analysis by Bus

P. Szalai Péter Horváth F. Hajdu Rajmund Kuti M. Brinissat Antal Apagyi Cs Papp

Publication Name: Strojnicky Casopis

Publication Date: 2022-11-01

Volume: 72

Issue: 2

Page Range: 189-200

Description:

From the point of view of field examinations, especially in the case of measurements done by instruments, it is crucially important to determine measurement conditions. Accurate identification of parameters enables accurate and certified measurement results to be achieved. In our work, we represent the determination of measurement conditions for harmful vibrations occurring during urban road transport of an Ikarus 55 type long-haul bus. This is a favourable basis for further vibration analysis regarding other buses.

Open Access: Yes

DOI: 10.2478/scjme-2022-0028