A comparative study of space heating scenarios of korca city regarding to energy and cost analysis

    Industry 4.0, Vol. 6 (2021), Issue 3, pg(s) 122-125

    The city of Korça is situated in the South-East part of Albania. Korça’s climate is partly Mediterranean and Continental, characterized by cold winter and relatively hot summer. The average annual temperature is 10.6 oC, while the average rainfall is 720 mm. Heating of Korça is not an unknown issue, although it still remains unsolved despite many efforts in this sector. This paper shortly describes the building typology and their thermal characteristics in Korça. After defining the heating demand of the Korça city, where as input in the model are used demographic data, climate data, building typology and heating system. Energy scenarios for heating of the city rely on a
    baseline scenario where wood is used as an energy source. Heat pump and natural gas energy scenario have been used for this comparative study. Energy and cost analysis for three scenarios are discussed in this paper.


    Recycle rechargeable lithium – ion batteries

    Trans Motauto World, Vol. 6 (2021), Issue 1, pg(s) 9-10

    Milliards of dollars are set aside for preserving the life on planet Earth and help climate change. Unfortunately, the advances in technology are incapable to help us sort out this vital problem, because the more advanced the technology nowadays is, more irresponsible we become in taking care about consequences after the expiration date of it. It is not only the plastic pollution of ocean of our planet that stops the formation of oxygen but also the irresponsible disposal of lithium-ion rechargeable batteries for smartphones, tablets, computers, electric smart devices and vehicles that are no longer in use, create ionizing radiation and form a radioactive background that affects living and non-living organisms inhabiting our planet. So, when the technology cannot help us, then perhaps the pure science would come to the rescue of preserving ourselves. There are laboratory researches about recycling lithium-ion batteries and here where we are – we are going to implement mathematics, algorithms, indexed arrays(vectors) for describing the benefit of manufacturing the recycling of lithium-ion batteries.


    Мathematical analysis of an electrical circuit

    Industry 4.0, Vol. 6 (2021), Issue 1, pg(s) 25-26

    There are some research about mathematical analysis of electrical circuits. In time when the scientists are in a deep search of invention new alternative ways for producing renewable energy, mathematic postulates and analysis can help optimize the const ruction of electrical circuits and prevent lost of energy. By themselves, the electrical schemas that represent Electrical circuits are a combination of interconnected electronical elements (components). According to the characteristics of the elements of Electrical schemas they are divided into the following groups: Passive and Active, Linear and Nonlinear, Bipolar and Multipolar. In our research we are going to switch from high to low power and vice versa, so we are going to us the abilities of diodes that switch from on to off state. The different values of low and high power of the electrical circuit will be represented programmatically with a cross-platform application – Arduino Integrated Development Environment and programmable language C++.



    Machines. Technologies. Materials., Vol. 11 (2017), Issue 4, pg(s) 178-180

    The paper deal with heat pipe technology which is often used in electronic cooling from small voltage microchips to the high voltage electric elements. In case of cooling the high voltage electric elements have to be evaporator part and condenser part of heat pipe a separated by electrical nonconductive material, because the heat pipes are most often made of metallic materials, and thus, are electrically conductive. As a working fluids in this applications are used dielectric fluids such as fluorinert liquids. But there is still risk of the dielectric breakdown between evaporator and condenser of heat pipe. The task of the experiment is to find how the ambient temperature effect on dielectric breakdown of vapour phase of working fluid in heat pipe. In experiment was investigated dielectric breakdown between copper pipes inserted in to glass heat pipe in distance of 70 and 65 mm and temperature range -10 to -40°C. This distance simulate electric insulator distance of heat pipe used for real application of high voltage electric element cooling. For this experiment was used glass heat pipe with working fluid Fluorinert FC 72. The choice of this fluid is mainly due its excellent dielectric properties and unique combination of the thermodynamic and others properties, which makes the Fluorinert FC – 72 ideal fluid for electronic cooling used in many electronic applications.