Energy Efficiency of â€œGreen Structuresâ€ in Cooling Period
Keywords:CO2 emission, cooling effect, energy efficiency, greenstructures, green structure.
The proposed methodology for estimating the reduction of CO2 emissions by green constructions (green roof and facade greening) due to the â€œcooling effectâ€ during the cooling period allows to calculate CO2 savings in warm periods of the year. For Kyiv, in July, the reduction of CO2 emissions per m2 at coal using is 133 g / m2, during the warm period of the year â€“ 515 g / m2; using gas â€“ 78 g / m2 and 303 g / m2. It is established that the energy savings of a green roof depends on the thickness of the thermal insulation of buildings: the thicker insulation causes the less green roof contribution to energy savings. However, the significance of their effectiveness remains. Green roofs can be especially effective in switching from gas to local solid fuels: peat waste, pellets, etc. As a practical recommendation, it is proposed to coordinate the placement of greened and ungreen parts of the green roof with rooms under the roof, which allows to reduce the refrigeration load on air conditioning. In addition, recommendations on grass care on the green roof have been developed. To maximize the cooling effect, it is necessary to maintain grass height no more than120 mm. Before the beginning of the transition period, it is necessary to stop mowing the grass, which reduces the cooling effect.
 â€Can greenery make commercial buildings more green?â€, FiBRE: Findings in Built and Rural Environments, (2007), available online: http://www.bco.org.uk/Research/Publications/Cangreene2599.aspx, last visit:08.03.2018
 Gaffin S.R., Rosenzweig C., Parshall L., Beattie D., Berghage R., Oâ€™Keeffe G., Braman D. â€œEnergy Balance Modeling Applied to a Comparison of Green and White Roof Cooling Efficiencyâ€, Proceedings of the 3rd Annual Greening Rooftops for Sustainable Cities Conference; Washington, DC., U.S.A. May 4â€“6, (2005), pp:3-18.
 Wong N. H., Chena Yu., Ong C. L., Sia A., â€œInvestigation of thermal benefits of rooftop garden in the tropical environmentâ€, Building and Environment, Vol.38 No.2, (2003), pp:261â€“270, http://doi.org/10.1016/S0360-1323(02)00066-5
 Liu K Minor J. (2005). â€œPerformance evaluation of an extensive green roofâ€. Proceedings of Third Annual Greening Rooftops for Sustainable Communities Conference, Awards and Trade Show; May, 4â€“6 Washington, DC, (2005), pp:1-11, available online: https://nparc.nrc-cnrc.gc.ca/eng/view/object/?id=e10a2c46-5c45-4a9e-8625-d7b0ea46e847, last visit:08.03.2018
 Minke G. â€œ13 Fragen a Professor Gernot Minkeâ€ Dach + GrÃ¼n, No 3, (2014), pp:6-10.
 Rakotondramiarana H. T., Ranaivoarisoa Ð¢. F., Morau D., â€œDynamic Simulation of the Green Roofs Impact on Building Energy Performance, Case Study of Antananarivo, Madagascarâ€, Buildings, No.5, (2007), pp:497-520, doi:10.3390/buildings5020497
 Tkachenko T., Mileikovskyi V. (2017). â€œResearch of Cooling Effect of Vegetation Layer of Green Structures in Constructionâ€, International Scientific and Practical Conference â€œWorld Scienceâ€, Vol. 1, No.7(23), (2017), pp.22-24, available online: https://elibrary.ru/item.asp?id=29744613, last visit:08.03.2018
 Kabrhel M., JirsÃ¡k M., Bittner M., Kabele K., Zachoval D. (2007), â€œExterior Climate and Building Ventilationâ€, Proceedings of Clima
WellBeing Indoors (2007), available online: http://www.irbnet.de/daten/iconda/CIB7729.pdf, last visit:08.03.2018
 Gumen O, Dovhaliuk V., Mileikovskyi V., Lebedeva O., Dziubenko V., â€œGeometric Analysis of Turbulent Macrostructure in Jets Laid on Flat Surfaces for Turbulence Intensity Calculationâ€, FME Transactions, Vol.45, No.2, (2017), pp: 236-242, doi:10.5937/fmet1702236G
 Gumen O., Dovhaliuk V., Mileikovskyi V. (2016) â€œSimplified Simulation of Flows with Turbulent Macrostructureâ€, The 4th International Technical Conference on Hydraulic Engineering (CHE 2016). 16-17 July 2016, Hong Kong. Proceedings, (2016), pp:251-260.
 Dovhaliuk V., Gumen O, Mileikovskyi V., Dziubenko V. (2018), Simplified Analysis of Turbulence Intensity in Curvilinear Wall Jets. FME Transactions, Vol.46, No.2, pp:177-182, doi:10.5937/fmet1802177D
 Belousov V. N., Smorodin S. N., Lakomkin V. Yu. Energosberezgenie i vibrosy parnikovich gazov (CO2), SPbGTURP, (2014), 53 p, available online: http://docplayer.ru/26668716-Energosberezhenie-i-vybrosy-parnikovyh-gazov-so-2.html, last visit:08.03.2018
 Malavina E. G. Stroitelnay teplophizika, MGSU, (2011), 22 p., available online: http://allformgsu.ru/load/teplogazosnabzhenie_i_ventiljacija_tgv/stroitelnaja_teplofizika_maljavina_e_g/35-1-0-905, last visit:08.03.2018
 DBN Ð’.2.6-31:2016 Teplova izoljacia budivel, Ukrarkhbudinform, (2017), 30 p., available online: http://dbn.at.ua/_ld/0/13_DBN-V.2.6-31-20.pdf, last visit:08.03.2018
 DSTU N B V.1.1 â€“ 27:2010 Budivelna klimatologiia, Ukrarkhbudinform, (2011), 123 p, available online: http://dbn.at.ua/load/normativy/dstu/dstu_b_v_1_1_27_2010/5-1-0-929, last visit:08.03.2018
 ÐœÐ¾Ðºliak V. F., Riabchuk O. M. Ð¢Ðµplonasosni ustanovky v kharchovii ta inchich galuzach, UNIDO, (2015), 33 p., available online: http://www.reee.org.ua/download/trainings/%D0%A2%D0%9C_12.pdf
View Full Article:
How to Cite
LicenseAuthors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under aÂ Creative Commons Attribution Licensethat allows others to share the work with an acknowledgement of the work''s authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal''s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (SeeÂ The Effect of Open Access).