PROVIDING OF RESERVE PARTS
Spare parts are parts of machines, plants and equipment (technical systems) that should be available for replacement when canceling them for various reasons - breaks, abrasion and deformation. By replacing them, the observed technical system places itself in the possibility of functional use. In order to enable the possibility of eliminating failur...
By Safet Brdarević, Fuad Klisura, Sabahudin Jašarević
EFFECT OF THE TURBINE CLOSING TIME ON THE WATER FLOW IN THE SUPPLY SYSTEM OF A DIVERSION HYDROPOWER PLANT WITH A SURGE TANK
In this paper, a model based on numerical solution of two ordinary differential equations is used to obtain the water level in the surge tank and the static pressure in the headrace tunnel – the properties of essential importance for the functioning of the water supply system during the turbine shut-off. The model allows a fast and reliable s...
By Adis Bubalo, Muris Torlak
APPLICATION OF COMPRESSED AIR IN PIT “HALJINIĆI”, JP EP BIH D.D. - SARAJEVO, ZD RMU ”KAKANJ” D.O.O. KAKANJ
During analysis of main problems in the pit "Haljinići", the drive energy represents one of the most important phases of the operation for functioning of the section, so imying and solving problems related to this segment, and automatically set itself as the key factor in realitation of all planned goals. Production activities, exploitation types, ...
By Kasim Bajramović, Husref Bajramović
ATTRIBUTIONAL VERSUS CONSEQUENTIONAL LIFE CYCLE ASSESSMENT MODELLING IN METALWORKING PRODUCTION SYSTEM
Two different system modelling can be distinguished in life cycle assessment: attributional and consequential. Attributional modelling is used to describe the present state of the examined system and is characterised with use of allocation, no substitutions, market average suppliers, and cut-off principle. Consequential modelling is used to describ...
By Boris Agarski, Đorđe Vukelić, Miodrag Hadžistević, Milana Ilić-Mićunović, Igor Budak
INFLUENCE OF CONTRACTION SHAPE ON THE FLOW QUALITY IN WIND TUNNEL TEST SECTION
Contraction is a part of a wind tunnel that has the greatest impact on the air flow quality in the test section. The constriction ratio, the cross section shape, the length and wall shape are constructive parameters that influence the uniformity of the flow, the flow turbulence intensity, the flow rotation angularity, the appearance of the flow sep...
By Ernad Bešlagić
POSSIBILITY OF USING TEXTILE WASTE AS AN ENERGY IN CEMENT INDUSTRY
The remains of natural and artificial materials in the textile industry are a problem in the technological process because it is a continuous production of waste and related to the need for everyday care. In Bosnia and Herzegovina there are currently no facilities for the material utilization, recycling or reuse of textile waste. Municipal waste di...
By Muvedet Šišić
3D PRINTING ADDITIVE PROCEDURE MODEL CREATION AND DIMENSIONAL CHECK USING CMM
3D printing is a technology that is increasingly used in many engineering fields and education. This technology is primarily used in rapid prototyping and rapid tooling. In this paper the geometrical accuracy of FDM (Fused Deposition Modelling) 3D printing is presented. For the dimensional test process, a 3D model which contains the characteristic ...
By Kenan Varda, Nermina Zaimović-Uzunović, Josip Kačmarčik, Samir Lemeš, Denis Spahić
METHODOLGY, TOOLS AND POSSIBILITIES OF STRUCTURAL ANALYSIS OF THE HOOK IN ASSEMBLY OF THE LOWER PULLEY IN CAD/CAE SYSTEM CATIA
This paper presents the methodology of the FEM modeling of the hook and provides a description of the possibility of tools of the module for structural analysis in the CAD / CAE CATIA system. The tools are described for defining: constraints, loads, shapes and types of contacts on the example of the hook, a lower pulley assembly, for which the FEM ...
By Sajfo Papić, Elida Hasanović
THE PROCEDURE OF ESTABLISHING MICRO PLANT OF RENEWABLE ENERGY SOURCES AND THE PROFITABILITY
This paper describes the procedure of opening a micro plant for renewable energy sources in Bosnia and Herzegovina, from the idea to the realization of the project, where the steps and acts of obtaining specific documents and licences from the relevant institution are mentioned. The costs for licencing at the municipal level and at the level of the...
By Tiro Dragi
CALCULATION INDEX OF RELIABILITY ON THE EXAMPLE OF THE SHED OF A STEEL HALL, COMPARATION OF PTP AND EC-1 REGULATIONS FOR SNOW LOAD
This paper deals with the resistance of the shed of a steel hall in Drvar according to technical regulations for snow from 1961 and EC1 regulations. The paper aims to check the reliability of the shed with probabilistic approach. That also implies calibration of the steel hall construction analyzed with classic deterministic method. Statical system...
By Rašid Hadžović, Vahid Redžić, Nermin Redžić