Miloš Vorkapić

ICTM pressure transmitter in the feed water system of the thermal power plant

This paper presents implementation of pressure transmitters, developed at Institute of Chemistry, Technology and Metallurgy (ICTM), within the feed water system existing in thermal power plant TENT-A located in Obrenovac, Serbia. For this purpose, high pressure transmitters (up to 400 bar), with standard current output (4-20) mA, digital display for in-situ reading and incorporated HART protocol for remote reading, are used. This type of monitoring enables higher degree of reliability, safety and energy efficiency of the feed water system. In order to optimize the energy efficiency aspect, special attention is focused on accuracy and precision of the measurements.

Applicability of the lean concept to the management of small-scale manufacturing enterprises in Serbia

Preliminary communication Lean management (LM) is a set of procedures and principles used in industrial processes for finding and eliminating useless activities. This paper presents the analysis of business practices in small-scale manufacturing enterprises in Serbia in comparison with defined LM principles. Application of LM standards to reduce waste and optimize production in SMEs in Serbia has not been investigated before, although this practice has been successfully used in neighboring countries. The importance of this approach is related to the benefits of improving business practices in SMEs in Serbia. This study shows that enterprises lack a system ensuring that the customer gets a quality product on time, the optimization of production and resources are limited, and a significant difference exists between job requirements and skills. The recommendations to improve operations include introduction of a monitoring and control system to ensure timely delivery and customer satisfaction, and introduction of various LM tools.

Implementation of 5S tools as a starting point in business process reengineering

University of Belgrade, Institute of Chemistry, Technology and Metallurgy Centre for Microelectronic Technology and Mono-crystals, 11000 Belgrade, Njegoševa 12, Republic of Serbia E-mail: worcky@nanosys.ihtm.bg.ac.rs University of Novi Sad, Technical Faculty “Mihajlo Pupin” Zrenjanin, 23000 Zrenjanin, Đure Đakovića bb, Republic of Serbia University of Kragujevac, Faculty of Technical Science, 32000 Čačak, 65 Svetog Save, Republic of Serbia

The importance of remanufacturing in transmitters production

This paper presents a algorithm for the improvement of the manufacturing process developed and tested for small-scale enterprise. The validity of the algorithm can be seen through: defining basic elements, defining environmental factors, the importance of resources, and the analysis of input and output in the manufacturing process. The algorithm incorporates implemented strategies: remanufacturing and 4Rs. The paper analyzed the temperature transmitter at the end of its life circle. Reuse transmitter is realized through: checking, disassembly, replacement parts, cleaning, re-assembling and testing. The work provides an example of how to save energy and materials which appear as large losses in the manufacturing process.