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Numerical Simulation of Fluid Flow inside the Flow Control Valve

flow forces in a multi-section proportional directional control valve , Energy Conv. Manag., 103, 1052-1064. DOI: 10.1016/j.enconman.2015.07.038 Lisowski E., Filo G., Rajda J., 2018. Analysis of flow forces in the initial phase of throttle gap opening in a proportional control valve , Flow Meas. Instrum., 59, 157-167. DOI: 10.1016/j.flowmeasinst.2017.12.011 Lisowski E., Filo G., Rajda J., 2016. CFD analysis of the characteristics of a proportional flow control valve with an innovative opening shape , Energy Conv. Manag., 123, 15-28. DOI: 10.1016/j

Open access
Matrix FMEA Analysis of the Flow Control Valve

Abstract

Reliability is a key feature in engineering systems and might be improved by using preventive methods, which allows for identification potential failures and establishing cause-and-effect relationships in consistent and systematic way. One of the popular quality improvement method is FMEA (Failure Modes and Effects Analysis). An application of matrix FMEA analysis method on example of flow control valve has been presented and discussed in the work. Presented example shows also a different ways of evaluating failures and theirs influence on analysis results.

Open access
Quality Improvement of a Safety Valve with the Use of Numerical and Experimental Studies

REFERENCES Beune, A., Kuerten, J.G.M., van Heumen, M.P.C., 2012. CFD analysis with fluid–structure interaction of opening high-pressure safety valves , Computers & Fluids 64, 108-116, DOI:10.1016/j.compfluid.2012.05.010. Bjerre, M., Eriksen, J.G.I., Andreasen, A., Stegelmann, C., Mando, M., 2017. Analysis of Pressure Safety Valves for fire protection on offshore oil and gas installations , Process Safety and Env. Protection 105, 60-68, DOI: 10.1016/j.psep.2016.10.008. Dempster, W., Alshaikh, M., 2015. An Investigation of the Two Phase Flow

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Quality Improvement of a Gear Transmission by Means of Genetic Algorithm

Abstract

The article deals with the issue of quality improvement of a gear transmission by optimizing its geometry with the use of genetic algorithms. The optimization method is focused on increasing productivity and efficiency of the pump and reducing its pulsation. The best results are tested on mathematical model and automatically modelled in 3D be means of PTC Creo Software. The developed solution proved to be an effective tool in the search for better results, which greatly improved parameters of pump especially reduced flow pulsation.

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Phase Change Heat Exchangers Made of Pin-Fins for Boiling Enhancement

identification of hydraulic components potential failures . MATEC Web Conf., 183, art. 03008. DOI: 10.1051/matecconf/201818303008 Filo, G., Fabis-Domagala, J., Domagala, M., Lisowski, E., Momeni, H., 2018a. The idea of fuzzy logic usage in a sheet-based FMEA analysis of mechanical systems . MATEC Web Conf., 183, art. 03009. DOI: 10.1051/matecconf/201818303009 Filo, G., Lisowski, E., Domagala, M., Fabis-Domagala, J., Momeni, H., 2018b. Modelling of pressure pulse generator with the use of a flow control valve and a fuzzy logic controller . AIP Conf. Proc., 2029

Open access
Quality Assurance Processes in Series Production of Car Elements

inżynierii produkcji . Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji, Częstochowa. ISBN: 978-83-63978-65-5 Jagusiak-Kocik, M., 2014. Ensuring continuous improvement processes through standardization in the automotive company. Production Engineering Archives, 2/1, pp. 12–15. Available at: http://dx.doi.org/10.30657/pea.2014.02.04 . Klimecka-Tatar, D. 2018, Context of production engineering in management model of value stream flow according to manufacturing industry, Production Engineering Archives 21, pp. 32-35. DOI: 10.30657/pea.2018

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Improvement of Manual Assembly Line Based on Value Stream Mapping (VSM) and Efectiveness Coefficient

REFERENCES Brzeziński, S., Klimecka-Tatar, D. 2016, Effect of the changes in the forming metal parameters on the value streams flow and the overall equipment effectiveness coefficient , 25th Anniversary International Conference on Metallurgy and Materials, Tanger Ltd., Ostrava, pp. 1750-1755. Favi, C., Germani, M., Marconi, M. 2017, A 4M Approach for a Comprehensive Analysis and Improvement of Manual Assembly Lines . Procedia Manufacturing 11, pp. 1510–1518. DOI: 10.1016/j.promfg.2017.07.283. Godina, R., Pimentel, C., Silva, F.J.G., Matias, J

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Trends in Rapid Prototyping and Smart Engineering for Central Europe Based on the 3DCentral Project

.1051/matecconf/201818303008 Filo, G., Lisowski, E., Domagala, M., Fabis-Domagala, J., Momeni, H., 2018. Modelling of pressure pulse generator with the use of a flow control valve and a fuzzy logic controller . AIP Conf. Proc., 2029, art. 020015. DOI: 10.1063/1.5066477 Gadek-Moszczak, A., Radek, N., Wronski, S., Tarasiuk, J., 2014. Application the 3D image analysis techniques for assessment the quality of material surface layer before and after laser treatment . Adv. Mat. Res. Switz., 874, 133-138. DOI: 10.4028/www.scientific.net/AMR.874.133 Goffin K

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Initial Public Offering (IPO) as a Potential Source of Capital for the Development of the Wood-based Industry Enterprises in Poland

Financial Intermediation , 11 (4), 398-428. Mikołajczak, E.; Wanat, L.; Kusiak W., 2017, Criteria for evaluating profitability of processing sawmill wood by-products into wooden briquettes and pellet - selected examples from the Polish wood market , [in:] Innovations in forestry, wood processing and furniture manufacturing, Scientific book / Ed. by Denis Jelacič, Zagreb: WoodEMA, 129-139. O'Brien, M.; Bringezu, S., 2018, European Timber Consumption: Developing a Method to Account for Timber Flows and the EU's Global Forest Footprint , Ecological Economics

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Analysis of the Influence of the Heat-Absorbing Surface of an Air-Cooled Solar Collector on its Thermal and Mechanical Properties

Abstract

This paper presents the analysis of existing forms of heat absorbing surfaces of air solar collectors, which gained the greatest popularity in the world. The obtained data allowed to conclude that there is a need for the development of solar collectors with air as a coolant with an improved form of heat absorber, which will reduce the operational and capital costs of solar systems and allow the efficient use of such structures in a moderate climate without additional mechanisms for the transfer of coolant. The use of computer simulation helped to compare the thermal characteristics of air-borne solar collectors of a different design. The substantiation of the expediency of installing as a heat absorber of flow turbulators in the form of a screw has been fulfilled, as well as the height of the air channel of the solar collector has been determined, in which the maximum heating of the transfer medium is observed. In addition, the loss of pressure in the air channel of the solar collector with flow turbulators was determined and the comparison of the obtained data with the values of pressure losses in the air collector of the matrix type and the air collector with V-shaped ribs was made.

Open access