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S. Metović
University of Sarajevo

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Conference paper
Published: 05 November 2020 in Inventive Computation and Information Technologies
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In this paper sizing of a micro-cogeneration system for one residential building located in Sarajevo Bosnia and Hercegovina (BiH) is presented. In the introduction the concept of cogeneration, its advantages and disadvantages, the contribution of cogeneration to greenhouse gas emissions reduction as well as differences between cogeneration and micro-cogeneration are briefly discusses. Further, the application of micro-cogeneration systems is analyzed in detail, as well as the current situation and perspectives in BiH regarding micro-cogeneration. One residential building in the city of Sarajevo is described, where a micro-cogeneration system for simultaneous production of electrical and thermal energy is to be installed. Analysis of the outdoor air temperatures for Sarajevo, the calculation of heat losses for the residential building and factors that most affect the thermal energy demand are given. Daily consumption of thermal energy for the chosen apartment building is given in the form of diagrams. Based on these diagrams and the load duration curve (LDC), the power of the micro-cogeneration unit is chosen. Different operation modes of the system are described regarding the thermal power it works in certain time periods. Calculation of electricity production of the system was done, as well as the electricity demands of the residents of the building. The fuel consumption for operation of this plant is also calculated. Additional costs of the application of the micro-cogeneration system, as well as the savings due to the use of the micro-cogeneration system are calculated. On this basis, economic indicators of profitability for investing in a micro-cogeneration system are obtained.

ACS Style

S. Metović; S. Oglečevac; N. Hodžić. Sizing of a Micro-cogeneration System of One Residential Building in Sarajevo. Inventive Computation and Information Technologies 2020, 513 -523.

AMA Style

S. Metović, S. Oglečevac, N. Hodžić. Sizing of a Micro-cogeneration System of One Residential Building in Sarajevo. Inventive Computation and Information Technologies. 2020; ():513-523.

Chicago/Turabian Style

S. Metović; S. Oglečevac; N. Hodžić. 2020. "Sizing of a Micro-cogeneration System of One Residential Building in Sarajevo." Inventive Computation and Information Technologies , no. : 513-523.

Journal article
Published: 09 March 2018 in Energies
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This paper presents a research on ash-related problems and emissions during co-firing low-rank Bosnian coals with different kinds of biomass; in this case woody sawdust and herbaceous energy crops Miscanthus. An entrained-flow drop tube furnace was used for the tests, varying fuel portions at a high co-firing ratio up to 30%wt woody sawdust and 10%wt Miscanthus in a fuel blend. The tests were supposed to optimize the process temperature, air distribution (including OFA) and fuel distributions (reburning) as function of SO2 and NOx emissions as well as efficiency of combustion process estimated through the ash deposits behaviors, CO emissions and unburnt. The results for 12 co-firing fuel combinations impose a reasonable expectation that the coal/biomass/Miscanthus blends could be successfully run under certain conditions not producing any serious ash-related problems. SO2 emissions were slightly higher when higher content of woody biomass was used. Oppositely, higher Miscanthus percentage in the fuel mix slightly decreases SO2 emissions. NOx emissions generally decrease with an increase of biomass co-firing rate. The study suggests that co-firing Bosnian coals with woody sawdust and Miscanthus shows promise at higher co-firing ratios for pulverized combustion, giving some directions for further works in co-firing similar multi-fuel combinations.

ACS Style

Anes Kazagić; Nihad Hodžić; Sadjit Metovic. Co-Combustion of Low-Rank Coal with Woody Biomass and Miscanthus: An Experimental Study. Energies 2018, 11, 601 .

AMA Style

Anes Kazagić, Nihad Hodžić, Sadjit Metovic. Co-Combustion of Low-Rank Coal with Woody Biomass and Miscanthus: An Experimental Study. Energies. 2018; 11 (3):601.

Chicago/Turabian Style

Anes Kazagić; Nihad Hodžić; Sadjit Metovic. 2018. "Co-Combustion of Low-Rank Coal with Woody Biomass and Miscanthus: An Experimental Study." Energies 11, no. 3: 601.