Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija
Determination of mutual ratios for specific activity in coal, slag and fly-ash samples from “Kolubara” power plant
Аутори
Kandić, AleksandarŠešlak, Bojan
Đurašević, Mirjana
Erić, Milić
Vukanac, Ivana
Milošević, Zoran
Marković, Zoran
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Ugalj,iporedsve intenzivnijeg razvoja i korišćenja obnovljivih izvora energije, ima i dalje značajnu ulogu u proizvodnji električne energije širom sveta. U Republici Srbiji prema godišnjem izveštaju “Elektroprivrede Srbije” za 2013. godinu u termoelektranama, čije jepogonsko gorivo lignit, proizvedeno je 26 537GWhod ukupno37 433 GWh električne energije[1]. Proizvodnja uglja, koji se koristi u termoelektranama “Elektroprivrede Srbije”, odvija se na površinskim kopovima rudarskih basena Kolubara (75 %) iKostolac(25 %) [2].
Coal as the fossil fuel contains naturally occurring radionuclides and belongs toNORM (Naturally Occurring Radioactive Materials). On the other hand, slag and fly-ash belong to TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are released into the environment an increase and/or redistribution of natural radionuclide content can occur. For the purposes of this study, six sets of samples (18 in total) of “Kolubara” coal, slag and fly-ash were collected during the periodical emission tests in May 2012th at steam boilers K3 and K4 of TPP “Kolubara”, Serbia. Coal, slag and fly-ash samples were prepared for analysis (milled, dried, sieved and weighed) by appropriate standard methods. Prepared samples were placedin 125 mL PVC cylindrical boxes, weighted and sealed with natural wax. Sealed samples were measured with a semiconductor HPGe spectrometer (37 % relative efficiency) after the radioactive equilibrium was reached. The obtained values of specific activ...ity for coal (Ac), slag (As) and fly-ash (Af) do not differ significantly compared to the values available in the literature. Analysis of determined mutual ratiosAs/Ac andAf/Ac are consistent, taking into account uncertainties ofactivity concentrations, with values of approximately 2 and 4, forK3, and1.5 and 4, forK4. Discrepancies were notedonly for40K (bothsteam boilers) ofAs/Ac.Results indicate that further investigation with more samples should be undertaken, and also correlation between radiological and proximate analysis should be determined.
Извор:
CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings, 2015, 286-291Издавач:
- Zagreb : Croatian Radiation Protection Association
Напомена:
- Zbornik radova 10. simpozija Hrvatskog društva za zaštitu od zračenja
Колекције
Институција/група
VinčaTY - CONF AU - Kandić, Aleksandar AU - Šešlak, Bojan AU - Đurašević, Mirjana AU - Erić, Milić AU - Vukanac, Ivana AU - Milošević, Zoran AU - Marković, Zoran PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/12759 AB - Ugalj,iporedsve intenzivnijeg razvoja i korišćenja obnovljivih izvora energije, ima i dalje značajnu ulogu u proizvodnji električne energije širom sveta. U Republici Srbiji prema godišnjem izveštaju “Elektroprivrede Srbije” za 2013. godinu u termoelektranama, čije jepogonsko gorivo lignit, proizvedeno je 26 537GWhod ukupno37 433 GWh električne energije[1]. Proizvodnja uglja, koji se koristi u termoelektranama “Elektroprivrede Srbije”, odvija se na površinskim kopovima rudarskih basena Kolubara (75 %) iKostolac(25 %) [2]. AB - Coal as the fossil fuel contains naturally occurring radionuclides and belongs toNORM (Naturally Occurring Radioactive Materials). On the other hand, slag and fly-ash belong to TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are released into the environment an increase and/or redistribution of natural radionuclide content can occur. For the purposes of this study, six sets of samples (18 in total) of “Kolubara” coal, slag and fly-ash were collected during the periodical emission tests in May 2012th at steam boilers K3 and K4 of TPP “Kolubara”, Serbia. Coal, slag and fly-ash samples were prepared for analysis (milled, dried, sieved and weighed) by appropriate standard methods. Prepared samples were placedin 125 mL PVC cylindrical boxes, weighted and sealed with natural wax. Sealed samples were measured with a semiconductor HPGe spectrometer (37 % relative efficiency) after the radioactive equilibrium was reached. The obtained values of specific activity for coal (Ac), slag (As) and fly-ash (Af) do not differ significantly compared to the values available in the literature. Analysis of determined mutual ratiosAs/Ac andAf/Ac are consistent, taking into account uncertainties ofactivity concentrations, with values of approximately 2 and 4, forK3, and1.5 and 4, forK4. Discrepancies were notedonly for40K (bothsteam boilers) ofAs/Ac.Results indicate that further investigation with more samples should be undertaken, and also correlation between radiological and proximate analysis should be determined. PB - Zagreb : Croatian Radiation Protection Association C3 - CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings T1 - Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija T1 - Determination of mutual ratios for specific activity in coal, slag and fly-ash samples from “Kolubara” power plant SP - 286 EP - 291 UR - https://hdl.handle.net/21.15107/rcub_vinar_12759 ER -
@conference{ author = "Kandić, Aleksandar and Šešlak, Bojan and Đurašević, Mirjana and Erić, Milić and Vukanac, Ivana and Milošević, Zoran and Marković, Zoran", year = "2015", abstract = "Ugalj,iporedsve intenzivnijeg razvoja i korišćenja obnovljivih izvora energije, ima i dalje značajnu ulogu u proizvodnji električne energije širom sveta. U Republici Srbiji prema godišnjem izveštaju “Elektroprivrede Srbije” za 2013. godinu u termoelektranama, čije jepogonsko gorivo lignit, proizvedeno je 26 537GWhod ukupno37 433 GWh električne energije[1]. Proizvodnja uglja, koji se koristi u termoelektranama “Elektroprivrede Srbije”, odvija se na površinskim kopovima rudarskih basena Kolubara (75 %) iKostolac(25 %) [2]., Coal as the fossil fuel contains naturally occurring radionuclides and belongs toNORM (Naturally Occurring Radioactive Materials). On the other hand, slag and fly-ash belong to TENORM (Technically Enhanced Naturally Occurring Radioactive Material), and if they are released into the environment an increase and/or redistribution of natural radionuclide content can occur. For the purposes of this study, six sets of samples (18 in total) of “Kolubara” coal, slag and fly-ash were collected during the periodical emission tests in May 2012th at steam boilers K3 and K4 of TPP “Kolubara”, Serbia. Coal, slag and fly-ash samples were prepared for analysis (milled, dried, sieved and weighed) by appropriate standard methods. Prepared samples were placedin 125 mL PVC cylindrical boxes, weighted and sealed with natural wax. Sealed samples were measured with a semiconductor HPGe spectrometer (37 % relative efficiency) after the radioactive equilibrium was reached. The obtained values of specific activity for coal (Ac), slag (As) and fly-ash (Af) do not differ significantly compared to the values available in the literature. Analysis of determined mutual ratiosAs/Ac andAf/Ac are consistent, taking into account uncertainties ofactivity concentrations, with values of approximately 2 and 4, forK3, and1.5 and 4, forK4. Discrepancies were notedonly for40K (bothsteam boilers) ofAs/Ac.Results indicate that further investigation with more samples should be undertaken, and also correlation between radiological and proximate analysis should be determined.", publisher = "Zagreb : Croatian Radiation Protection Association", journal = "CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings", title = "Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija, Determination of mutual ratios for specific activity in coal, slag and fly-ash samples from “Kolubara” power plant", pages = "286-291", url = "https://hdl.handle.net/21.15107/rcub_vinar_12759" }
Kandić, A., Šešlak, B., Đurašević, M., Erić, M., Vukanac, I., Milošević, Z.,& Marković, Z.. (2015). Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija. in CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings Zagreb : Croatian Radiation Protection Association., 286-291. https://hdl.handle.net/21.15107/rcub_vinar_12759
Kandić A, Šešlak B, Đurašević M, Erić M, Vukanac I, Milošević Z, Marković Z. Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija. in CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings. 2015;:286-291. https://hdl.handle.net/21.15107/rcub_vinar_12759 .
Kandić, Aleksandar, Šešlak, Bojan, Đurašević, Mirjana, Erić, Milić, Vukanac, Ivana, Milošević, Zoran, Marković, Zoran, "Određivanje međusobnih odnosa specifičnih aktivnosti uzoraka uglja, pepela i šljake iz termoelektrane “Kolubara”, Srbija" in CRPA : 10th Symposium of the Croatian Radiation Protection Association : Proceedings (2015):286-291, https://hdl.handle.net/21.15107/rcub_vinar_12759 .