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Abstract

The paper presents a study of a possible application of structure embedded piezoelectric actuators to enhance the performance of a rotating composite beam exhibiting the coupled flexural-flexural vibrations. The discussed transversal and lateral bending modal coupling results from the directional properties of the beam's laminate and ply stacking distribution. The mathematical model of the beam is based on an assumption of cross-sectional non-deformability and it incorporates a number of non-classical effects. The final 1-D governing equations of an active composite beam include both orthotropic properties of the laminate and transversely isotropic properties of piezoelectric layers. The system's control capabilities resulting from embedded Macro Fiber Composite piezoelectric actuators are represented by the boundary bending moment. To enhance the dynamic properties of the composite specimen under consideration a combination of linear proportional control strategies has been used. Comparison studies have been performed, including the impact on modal coupling magnitude and cross-over frequency shift.
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Authors and Affiliations

Marcin Bocheński
Jarosław Latalski
Jerzy Warmiński
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Abstract

In the paper, the authors discuss the numerical and experimental modal analysis of the cantilever thin-walled beams made of a carbon-epoxy laminate. Two types of beams were considered: circumferentially asymmetric stiffness (i.e., CAS) and circumferentially uniform stiffness (i.e., CUS) beams. The layer-up configurations of the laminate were chosen to get a vibration mode coupling effect in both analysed cases. The aim of the paper was to perform the numerical and experimental modal analysis of the composite structures, when a flapwise bending with torsion coupling effect or flapwise-chordwise bending coupling effect took place. Firstly, numerical studies by the finite element method was performed. The numerical simulations were carried out by the Lanczos method in the Abaqus software package. The natural frequencies and the corresponding free vibration modes were determined. Next, the experimental modal analyses of the CAS and CUS beams were performed. The test stand was consisted of a special grip, two beams with an adhered holder, the LMS Scadas III system with a modal hammer and an acceleration sensor. Finally, the results of both methods were compared.

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Authors and Affiliations

Jarosław Gawryluk
Marcin Bocheński
Andrzej Teter
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Abstract

Agriculture is a signifi cant source of gaseous pollutants such as ammonia, methane, nitrous oxide and volatile organic compounds. Ammonia is particularly important due to the high emission and local, as well as global impact on the environment. The release of NH3 is one of the main ways of nitrogen emission to the atmosphere and it contributes to its subsequent deposition. The aim of the study was to analyze ammonia emissions from animal production in Poland in 2005–2017, its regional diversity and possibilities of its reduction in agriculture. The ammonia emission was calculated for the animal production groups according to the NFR classifi cation. The values of ammonia emission were calculated based on ammonia emission factors used by KOBIZE, in accordance with the EMEP/EEA methods. In 2017, the NH3 emission from Polish agriculture amounted 288 Gg and it accounted for 96% of the emission in 2005. Ammonia emission from livestock production, in 2005–2017, on average accounted for 79.8% of agricultural emissions. The largest share had the cattle (51%) and swine (30%) production. The NH3 emissions differed strongly between provinces. The emission density (kg NH3·km-2·year-1) in provinces with intensive livestock production was about 5.5 times higher than in regions, where livestock production was the lowest. The mitigation strategies should be implemented primarily in provinces where reduction potential is the largest. The assessment of the reduction potential should take into account the NH3 emission per 1 km2 and the low

NH3 emission technologies, which are already applied in the regions.

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Authors and Affiliations

Paulina Mielcarek-Bocheńska
Wojciech Rzeźnik
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Abstract

Livestock production is the basis of global food production and it is a serious threat to the environment. Significant environmental pollutants are odors and ammonia (NH3) emitted from livestock buildings. The aim of the study was to determine the concentration and emission factors of ammonia and odors, in the summer season, from a deep-litter fattening house. The research was carried out during summer in a mechanically ventilated fattening piggery located in the Greater Poland Voivodeship. Ammonia concentrations were measured using photoacoustic spectrometer Multi Gas Monitor Innova 1312, and odor concentrations were determined by dynamic olfactometry according to EN 13725:2003 using a TO 8 olfactometer. The NH3 emission factors from the studied piggery, in summer, ranged from 8.53 to 21.71 g·day-1·pig-1, (mean value 12.54±4.89 g·day-1·pig-1). Factors related to kg of body mass were from 0.11 to 0.23 g·day-1·kg b.m.-1 (mean value 0.17±0.06 g·day-1·kg b.m.-1). Odor concentrations in the studied piggery were from 755 to 11775 ouE·m-3 and they were diversified (coefficient of variation 43.8%). The mean value of the momentary odor emission factors was 179.5±78.7 ouE·s-1·pig-1. Factor related to kg of body mass was 2.27±1.71 ouE·s-1·kg b.m.-1. In Poland and many other countries, the litter systems of pigs housing are still very popular. Therefore, there is a need to monitor the pollutant emissions from such buildings to identify the factors influencing the amount of this emission. Another important issue is to verify whether the reduction techniques, giving a measurable effect in laboratory research, bring the same reduction effect in production
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Bibliography

  1. Bebkiewicz, K., Chłopek, Z., Chojnacka, K., Doberska, A., Kanafa, M., Kargulewicz, I., Olecka, A., Rutkowski, J., Walęzak, M., Waśniewska, S., Zimakowska-Laskowska, M. & Żaczek, M. (2021). Poland’s Informative Inventory Report 2021: Air pollutant emissions in Poland 1990–2019. National Centre for Emissions Management (KOBiZE), Warsaw, Poland. https://cdr.eionet.europa.eu/pl/eu/nec_revised/iir/envyei5sq/IIR_2021_Poland.pdf
  2. Blanes-Vidal, V., Hansen, M.N., Pedersen, S. & Rom, H.B. (2008). Emissions of ammonia, methane and nitrous oxide from pig houses and slurry: Effects of rooting material, animal activity and ventilation flow, Agriculture, Ecosystems and Environment, 124, pp. 237‒244. DOI:10.1016/j.agee.2007.10.002
  3. Blanes-Vidal, V., Suh, H., Nadimi, E.S., Løfstrøm, P., Ellermann, T., Andersen, H.V. & Schwartz, J. (2012). Residential exposure to outdoor air pollution from livestock operations and perceived annoyance among citizens, Environment International, 40, pp. 44–50. DOI:10.1016/j.envint.2011.11.010
  4. Bokowa, A., Diaz, C., Koziel J. A., McGinley, M., Barclay, J., Schauberger, G., Guillot J.M., Sneath, R., Capelli L., Zorich, V., Izquierdo, C., Bilsen, I., Romain, A.C., del Carmen Cabeza, M., Liu, D., Both, R., Van Belois, H., Higuchi, T. & Wahe, L. (2021. Summary and Overview of the Odour Regulations Worldwide, Atmosphere, 12, pp. 206. DOI:10.3390/atmos12020206
  5. CEN (2003). European Committee for Standardization CEN. Air Quality—Determination of Odour Concentration by Dynamic Olfactometry; EN 13725:2003; CEN: Brussels, Belgium.
  6. Fomunyam, K.G. (2019). Health, mental and emotional impacts of odour producing industrial emissions on man. International Journal of Civil Engineering and Technology, 10, pp. 402–414. Article ID: IJCIET_10_10_039
  7. Gerber, P.J., Steinfeld, H., Henderson, B., Mottet, A., Opio, C., Dijkman, J., Falcucci, A. & Tempio, G. (2013). Tackling climate change through livestock – A global assessment of emissions and mitigation opportunities. Food and Agriculture Organization of the United Nations (FAO), Rome, Italy. http://www.fao.org/3/i3437e/i3437e.pdf
  8. Guingand, N. & Rugani, A. (2012). Impact of the Reduction of Straw on Ammonia, GHG and Odors Emitted by Fattening Pigs Housed in a Deep-litter System. Ninth International Livestock Environment Symposium. Valencia, Spain, July 8 - 12, ASABE, ILES12-0083.
  9. Guo, H., Dehod, W., Agnew, J., Laguë, C., Feddes, J.R. & Pang, S. (2006). Annual odor emission rate from different types of swine production buildings, Transactions of the ASABE, 49(2), pp. 517−525.
  10. Heber, A., Lim, T., Tao, P., Ni, J. & Schmidt, A. (2008). Effect of Oil Sprinkling in Swine Finishing Barns on Odor Characteristics and Emissions, Chemical Engineering Transactions, 15, pp. 353−361.
  11. Jo, G., Ha, T., Jang, J.N., Hwang, O., Seo, S., Woo, S.E., Lee, S., Kim, D. & Jung, M. (2020). Ammonia Emission Characteristics of a Mechanically Ventilated Swine Finishing Facility in Korea, Atmosphere, 11, pp. 1088. DOI:10.3390/atmos11101088
  12. Margeta, V. & Kralik, G. (2006). Results of zeolit application in fattening of pigs on deep litter, Krmiva, 48, pp. 69-75.
  13. Mielcarek, P., Rzeźnik, W. & Rzeźnik, I. (2014). Ammonia and greenhouse gas emissions from a deep litter farming system for fattening pigs, Problems of Agricultural Engineering, 1(83), pp. 83–90.
  14. Mielcarek, P. & Rzeźnik, W. (2015). Odor Emission Factors from Livestock Production. Polish Journal of Environmental Studies, 24(1), pp. 27–35. DOI: 10.15244/pjoes/29944
  15. Mielcarek, P. & Rzeźnik, W. (2017). The effect of season on the concentration of odours in deep-litter piggery, Journal of Research and Applications in Agricultural Engineering, 62(1), pp. 132−135.
  16. Mielcarek-Bocheńska, P. & Rzeźnik, W. (2019). Ammonia emission from livestock production in Poland and its regional diversity, in the years 2005–2017. Archives of Environmental Protection, 45(4), pp. 114–121. DOI:10.24425/aep.2019.130247
  17. Ngwabie, N.M., Jeppsson, K.H., Nimmermark, S. & Gustafsson, G. (2011). Effects of animal and climate parameters on gas emissions from a barn for fattening pigs, Applied Engineering Agriculture, 27, pp. 1027‒1037. DOI:10.1016/j.atmosenv.2011.08.027
  18. Ni, J.Q., Shi, C., Liu, S., Richert, B.T., Vonderohe, C.E. & Radcliffe, J.S. (2019). Effects of antibiotic-free pig rearing on ammonia emissions from five pairs of swine rooms in a wean-to-finish experiment, Environment International, 131, pp. 104931. DOI:10.1016/j.envint.2019.104931
  19. Nicks, B., Laitat, M., Farnir, F., Vandenheede, M., Désiron, A., Verhaeghe, C. & Canart, B. (2004). Gaseous emissions from deep-litter pens with straw or sawdust for fattening pigs, Animal Science, 78, pp. 99–107. DOI:10.1017/S1357729800053881
  20. Philippe, F.X., Laitat, M., Canart, B., Vandenheede, M. & Nicks, B. (2007). Comparison of ammonia and greenhouse gas emissions during the fattening of pigs, kept either on fully slatted floor or on deep litter, Livestock Science, 111, pp. 144–152. DOI:10.1016/j.livsci.2006.12.012
  21. RM (2010). Regulation of the Minister for Agriculture and Rural Development of 15 February 2010 on the requirements and procedure for keeping livestock species for which protection standards have been laid down in European Union legislation. Dz.U. 2010 nr 56 poz. 344. (in Polish)
  22. Rzeźnik, W., Mielcarek, P. & Rzeźnik, I. (2014). Odour emission from a deep litter farming system for fattening pigs, Problems of Agricultural Engineering, 1(83), pp. 91–98.
  23. Schauberger, G., Lim, T.T., Ni, J.Q., Bundy, D.S., Haymore, B.L., Diehl, C.A., Duggirala, R.K. & Heber, A.J. (2013). Empirical model of odor emission from deep-pit swine finishing barns to derive a standardized odor emission factor, Atmospheric Environment, 66, pp. 84–90. DOI:10.1016/j.atmosenv.2012.05.046
  24. Sousa, F.A., Campos, A.T., Amaral P.I.S, Castro, J.O., Yanagi Junior T., Veloso, A.V. & Cecchin, D. (2014). Aerial environment and deep litter temperature in a swine building, Journal of Animal Behaviour and Biometeorology, 2(4), pp. 109–116. DOI:10.14269/2318-1265/jabb.v2n4p109-116
  25. Viatte, C., Wang, T., Van Damme, M., Dammers, E., Meleux, F., Clarisse, L., Shephard, M.W., Whitburn, S., Coheur, P.F., Cady-Pereira, K. E. & Clerbaux, C. (2020). Atmospheric ammonia variability and link with particulate matter formation: a case study over the Paris area, Atmospheric Chemistry and Physics, 20, pp. 577–596. DOI:10.5194/acp-20-577-2020
  26. Wang, K., Wei, B., Zhu, S. & Ye Z. (2011). Ammonia and odour emitted from deep litter and fully slatted floor systems for growing-finishing pigs, Biosystems Engineering, 109(3), pp. 203–210. DOI:10.1016/j.biosystemseng.2011.04.001
  27. Wei, B., Wang, K., Dai, X., Li, Z. & Luo, H. (2010). Evaluation of Indoor Environmental Conditions of Micro-fermentation Deep Litter Pig Building in Southeast China. 2010 ASABE Annual International Meeting, Pittsburgh, Pennsylvania, USA, June 20 - June 23, ASABE 1009679. DOI:10.13031/2013.29979
  28. Wi, J., Lee, S., Kim, E., Lee, M., Koziel, J.A. & Ahn, H. (2019). Evaluation of Semi-Continuous Pit Manure Recharge System Performance on Mitigation of Ammonia and Hydrogen Sulfide Emissions from a Swine Finishing Barn, Atmosphere, 10, pp. 170. DOI:10.3390/atmos10040170
  29. Yunnen, C., Changshi, X. & Jinxia, N. (2016). Removal of Ammonia Nitrogen from Wastewater Using Modified Activated Sludge, Polish Journal of Environmental Studies, 25(1), pp. 419–425. DOI:10.15244/pjoes/60859
  30. Zhou, X. & Zhang, Q. (2003). Measurements of odour and hydrogen sulfide emissions from swine barns, Canadian Biosystems Engineering, 45, pp. 6.13−6.18.
  31. Zong, C., Li, H. & Zhang, G. (2015). Ammonia and greenhouse gas emissions from fattening pig house with two types of partial pit ventilation systems, Agriculture, Ecosystems & Environment, 208, pp 94-105. DOI:10.1016/j.agee.2015.04.031.
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Authors and Affiliations

Paulina Mielcarek-Bocheńska
1
ORCID: ORCID
Wojciech Rzeźnik
2

  1. Institute of Technology and Life Sciences-National Research Institute, Poland
  2. Poznan University of Technology, Poland

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