Mojsovski, Filip
Preferred name
Mojsovski, Filip
Official Name
Mojsovski, Filip
Main Affiliation
Email
filip.mojsovski@mf.edu.mk
16 results
Now showing 1 - 10 of 16
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Performance evaluation of micro orc systems for power generation in nearly zero energy buildings (NZEB)(Faculty of mechanical engineering, University of Banja Luka, 2019-05); ; According the Energy Performance of Buildings Directive it is required all new buildings to be nearly zero-energy by the end of 2020. Micro cogeneration systems are considered as one of the system solutions with the highest potential to enable nearly zero energy buildings (nZEB). In this paper is assessed the potential for application of Micro-Organic Rankine Cycle system for power generation in nZEB, where as a heat source is considered solar energy (solar thermal collectors) biomass (pellet boiler), which are also integrated part of the heating system and DHW. Analysis is performed in order to select optimal ORC working fluid for highest thermal efficiency. The solar thermal system, building, heating/cooling and DHW systems are modeled with Transient System Simulation Tool (TRNSYS) and for the meteorological data is used Typical Meteorological Year for Macedonia. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Impact of indoor air quality on health effects(Faculty of Mechanical Engineering, University of Banja Luka, 2017-05); In modern industrial society man spends the greater part of his life indoors. A large proportion of the population, over 90%, spends more than 20 hours a day in an artificial environment: at home, at the workplace, at shops, at variety of recreation places, cafes, theaters, cinemas, galleries, etc), during transportation etc. Since we spend most of our time indoors the character of the Indoor Environment Quality (IEQ) is of great significance for how we feel, for our health, wellbeing and productivity. Indoor environment quality has a special role as health determinant, and management of indoor air requires different approaches than outdoor air. To achieve indoor environment quality is determined by many factors, but the designers are focused on four different perspectives such as: Indoor Air Quality (IAQ), Thermal Comfort (TC), Visual Comfort (VC) and Acoustical Comfort (AC). The concept of Indoor Air Quality (IAQ) is used as a general denomination for the cleanliness of indoor air. The requirements of the occupants for the indoor air quality in a space are first that the health risk of breathing the air should be negligible and second that the air should be perceived to be fresh and pleasant rather than stale, stuffy and irritating. Indoor air quality may be controlled by a combination of pollutant source control and ventilation. Indoor air quality is vital to human health because most human activities take place in the indoor environment. Therefore the indoor air quality have become priority a for federal, provincial and regional health authorities. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Convergence Between Cost-Optimality and Nearly Zero-Energy Buildings(Faculty of Mechanical Engineering in Nis, 2017-10); In according to Directive 2010/31/EU, the concept of Cost-Optimality was setting the energy performance requirements in the MS building codes. Particularly, the Commission established a comparative framework methodology for calculating cost-optimal levels of minimum energy performance for building. The same Directive also introduces the concept of nearly Zero-Energy Buildings (nZEB) stating that all new buildings by the end of 2020 must be nZEB. The cost-optimal methodology helps to understand and manage the implications of implementing requirements for nZEB. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Required parameters in the thermal processes conducted for rice quality improvement(Faculty of Mechanical Engineering Skopje, 2017); ; An investigation was realized to obtain information on paddy parboiling conditions and parboiled rice drying conditions. Parameters required in the processes of paddy thermal treatment were reviewed and compared with research results. Field tests on parboiling autoclaves and mixed-flow rice dryer were made at the parboiling rice factory in Kočani. Three autoclaves with functional capacity of 3000 kg paddy/h and one mixed-flow parboiled rice dryer with capacity of 2500 kg parboiled rice/h were included in the examination. The paddy behavior in the parboiling process was controlled by measurements. The processes of paddy soaking in hot water, steaming, pre-drying, milling and parboiled rice drying were included in the measuring programme. The study was conducted on three local paddy varieties, Monticelli, Saint Andrew and RS76. The range of the required parameters for the processes of paddy parboiling and parboiled rice drying was determined - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Drying Intensity Influence on Quality of Dried Food(University of Niš, Faculty of Mechanical Engineering in Niš, 2017-10); Živković, PredragFood is dried to needed moisture content. Drying intensity results from interrelationships among the characteristics of dried product, drying medium and dryer. This dependence is investigated by tests at one laboratory and three industrial type dryers. The attention is concentrated on rice and apple drying because of their significance for actual local agriculture. Paddy thin layer drying is examined at temperatures up to 42 oC and final moisture content wet basis of 10 %. Apple rings are dried at temperatures up to 80 oC and final moisture content wet basis of 24 %. For the both drying products, process of drying in more periods with intermittent tempering is evaluated. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Drying Conditions for Tomato Processing in Solar Dryer(Faculty of Mechanical Engineering in Nis, 2019-10); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Review of Major Greenhouse gas emissions in Skopje(Faculty of Mechanical Engineering in Nis, 2019-10); Climate change is a serious threat to the environment and people’s health, wellbeing and quality of life, reducing access to natural resources and harming the economy and infrastructure. Greenhouse gases, as the most significant driver of observed climate change are attributable primarily to human activities. Worldwide, net emissions of greenhouse gases increased by 35% in the last three decades. The comparison between emissions of different gases based on a global warming potential concept is made with climate change indicators that characterize emissions of the gases, their concentrations in the atmosphere and the change over time. Like most urban centers, the majority of greenhouse gas emissions in Skopje result from electricity generation, transportation and other forms of energy production. The main problems originate mainly from the sector of stationary energy accounted for about 75% of the total gas emissions ranging from 4948 kt CO2-eq in 2008 to 5343kt CO2-eq in 2012. As the most dominant greenhouse gas carbon dioxide, CO2 accounted for 93% of the total emissions. Significant measures to reduce its emissions in the sectors of energy supply, buildings and transportation are proposed. They are expected to achieve 22%, or more ambitious 32% reduction in emissions by 2020. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Energy efficiency of buildings review in 2016(University Politehnica Timisoara, Faculty of Engineering Hunedoara, Romania, 2018); The Energy Performance of Buildings Directive (EPBD) is the European Union’s main legislative instrument aiming to promote the improvement of the energy performance of buildings within Community. It was inspired by the Kyoto Protocol which commits the EU and all its parties by setting binding emission reduction. The first version of the EPBD (Directive 2002 /91/EC), was approved on 16 December 2012 and entered into force on 4 January 2003. The Directive required the MS strengthen the building regulations and introduce Energy Performance Certificates (EPCs). Directive 2002/91/EC was later on replaced by the so-called “EPBD recast”, which was approved on 19 May 2010. This version of the EPBD broadened its focus on nearly Zero-Energy Buildings (nZEB), cost optimal levels of minimum energy performance requirements as well as improved policies. 2016 is an important year for energy efficiency legislation at EU level, with the upcoming revisions of the EPBD and Energy Efficiency Directive (EED). On 30 November 2016 published its “Clean Energy for All Europeans“ package, also known as the “Winter Package”. With an appropriate framework, buildings could play a central role in transforming the EU energy system. Buildings are entering a transition phase, transforming into highly efficient micro energy-hubs consuming, producing, storing and supplying energy, making the system more flexible and efficient enabling a rapid uptake of renewable energy and electric vehicles. The Paris Agreement provides a common framework within which individual countries are invited to define nationally determined contributions (NDCs) taking account the overall goal of the UN Framework Convention on Climate change. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Solar drying of raspberry(Faculty of Mechanical Engineering, Ss. Cyril and Methodius University in Skopje, Republic of Macedonia, 2016)Drying conditions for solar drying of fruits were estimated by field conducted experiments. Solar driers without auxiliary heat source were under investigation. Water-filled vessels and a bed of rocks were used as heat accumulators. Air state or psychrometric zones in the drying room of the dryer, flow rates of air, product thickness and the time of drying are proposed for red raspberry solar drying. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Thermal capability of hyperbolic cooling tower(Faculty of Mechanical Engineering, University of Banja Luka, 2019-05); Mijakovski, VladimirOperating flexibility of hyperbolic cooling tower, used for large power installation, is examined at various loads and weather conditions. Existing cooling tower theory can’t be sufficient for predicting, planning and improving the cooling tower thermal capability. With the actual research, a procedure for evaluation of thermal capability of hyperbolic cooling tower is offered. The analysis is performed in four phases: 1. design of cooling tower, 2. building of unit, 3. field acceptance test, and 4. long term exploitation. Tested cooling towers are used in the field of electric power generation and correspond to thermal power units of 100 and 200 MW. Performance curves, based on long term operation experience, are proposed.