Error
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering
  • Error loading Modules:Can't create/write to file '/var/lib/mysql/tmp/#sql_bd4_0.MYI' (Errcode: 30) SQL=SELECT id, title, module, position, content, showtitle, control, params FROM jos_modules AS m LEFT JOIN jos_modules_menu AS mm ON mm.moduleid = m.id WHERE m.published = 1 AND m.access <= 0 AND m.client_id = 0 AND ( mm.menuid = 8 OR mm.menuid = 0 ) ORDER BY position, ordering

SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

Substantiation of the simplified method of determining heat losses through underground parts of building enclosures

Vestnik MGSU 1/2016
  • Samarin Oleg Dmitrievich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Heating and Ventilation, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 118-125

Currently, the successful development of construction industry depends on the improved energy performance of buildings, structures and facilities, as well as on the quality assurance of the indoor climate. The approximate calculation of two-dimensional temperature field of the ground outside the underground part of the building is considered using the analytical solution of differential equation of thermal conduction by the method of sources and sinks according to the existing boundary conditions. This problem is a very high-priority task now because of actualization of building standards in Russian Federation and because of the increasing demands to safety and security of heat supply. That’s why it is very important to find a simple but accurate enough dependence for the heat losses through the floor situated on the ground. The results of the estimation of thermal resistance of floor areas on the ground are presented on the basis of the obtained temperature field. The comparison of these results with the regulatory requirements specified in SP 50.13330.2012, and with the data of numerical calculations of other authors using finite difference approximation of the thermal conduction equation with consideration of soil freezing is held. It is shown that the requirements of the SP 50.13330.2012 are physically reasonable, and numerical calculations can also be described by the analytical dependence obtained in this paper with appropriate selection of the numerical coefficients with the preservation of engineering form of the calculation procedure. The obtained model is easy to use in engineering practice especially during preliminary calculations. The presentation is illustrated with numerical and graphical examples.

DOI: 10.22227/1997-0935.2016.1.118-125

References
  1. Samarin O.D. Energeticheskiy balans grazhdanskikh zdaniy i vozmozhnye napravleniya energosberezheniya [Energy Balance of Public Buildings and Possible Ways of Energy Saving]. Zhilishchnoe stroitel’stvo [Residential Construction]. 2012, no. 8, pp. 2—4. (in Russian)
  2. Malyavina E.G. Teplopoteri zdaniya : spravochnoe posobie [Heat Losses of Buildings. Reference Guideline]. Moscow, AVOK-PRESS, 2007, 144 p. (in Russian)
  3. Gindoyan A.G., Grushko V.Ya., Sundukov I.Yu. Issledovanie teplopoter’ cherez poly po gruntu [Research of Heat Losses through Floors on the Ground]. Stroitel’naya fizika v XXI veke : materialy nauchno-tekhnicheskoy konferentsii [Building Physics in the 21st Century : Papers of the Scientific and Technical Conference]. Moscow, NIISF RAASN Publ., 2006,pp. 207—211. (in Russian)
  4. Malyavina E.G., Ivanov D.S. Opredelenie teplopoter’ podzemnoy chasti zdaniya raschetom trekhmernogo temperaturnogo polya grunta [Estimation of Heat Losses of the Underground Part of a Building by Calculating Three-Dimensional Temperature Field of the Soli]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011,no. 11, pp. 209—215. (In Russian)
  5. Malyavina E.G., Ivanov D.S. Raschet trekhmernogo temperaturnogo polya grunta s uchetom promerzaniya pri opredelenii teplopoter’ [Calculation of Three-Dimensional Temperature Field of the Soil in View of Freezing While Estimating Heat Losses]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, vol. 1, no. 3, pp. 371—376. (In Russian)
  6. Parfent’ev N.A., Parfent’eva N.A. Matematicheskoe modelirovanie teplovogo rezhima konstruktsiy pri fazovykh perekhodakh [Mathematical Simulation of the Thermal Regime of Constructions under Phase Transitions]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 4, pp. 320—322. (In Russian)
  7. Lapina N.N., Pushkin V.N. Chislennoe reshenie odnomernoy ploskoy zadachi Stefana [The Numerical Solution of One-Dimensional Planar Stephan’s Problem]. Vestnik DGTU [Vestnik of DSTU. Theoretical and Scientific-Practical Journal of Don State Technical University]. 2010, vol. 10, no. 1 (44), pp. 16—21. (In Russian)
  8. Akimov M.P., Mordovskoy S.D., Starostin N.P. Vozdeystvie podzemnogo truboprovoda teplosnabzheniya na vechnomerzlye grunty Kraynego Severa [The Influence of Buried Heat Supply Pipe on Constantly Frozen Soils of the Extreme North]. Vestnik Severo-Vostochnogo federal’nogo universiteta im. M.K. Ammosova [Vestnik of Yakutsk State University named after M.K. Ammosov]. 2012, vol. 9, no. 2, pp. 19—23. (In Russian)
  9. Akimov M.P., Mordovskoy S.D., Starostin N.P. Chislennyy algoritm dlya issledovaniya vliyaniya beskanal’nogo podzemnogo truboprovoda teplosnabzheniya na vechnomerzlye grunty [The Numerical Algorithm for the Research of the Influence of Non-Channel Underground Heat Supply Pipe on Constantly Frozen Soils]. Matematicheskie zametki YaGU [Mathematical Notes of North-Eastern Federal University in Yakutsk]. 2010, vol. 17, no. 2, pp. 125—131. (In Russian)
  10. Gerson Henrique Dos Santos, Nathan Mendes. Combined Heat, Air and Moisture (HAM) Transfer Model for Porous Building Materials. Journal of Building Physics. 2009, vol. 32, no. 3, pp. 203—220. DOI: http://www.doi.org/10.1177/1744259108098340.
  11. Halawa E., van Hoof J. The Adaptive Approach to Thermal Comfort: A Critical Overview. Energy and Buildings. 2012, vol. 51, pp. 101—110. DOI: http://dx.doi.org/10.1016/j.enbuild.2012.04.011.
  12. Brunner G. Heat Transfer. Supercritical Fluid Science and Technology. 2014, vol. 5, pp. 228—263.
  13. Horikiri K., Yao Y., Yao J. Modelling Conjugate Flow and Heat Transfer in a Ventilated Room for Indoor Thermal Comfort Assessment. Building and Environment. 2014, vol. 77, pp. 135—147. DOI: http://dx.doi.org/10.1016/j.buildenv.2014.03.027.
  14. Yun Tae Sup, Jeong Yeon Jong, Han Tong-Seok, Youm Kwang-Soo. Evaluation of Thermal Conductivity for Thermally Insulated Concretes. Energy and Buildings. 2013, vol. 61, pp. 125—132. DOI: http://dx.doi.org/10.1016/j.enbuild.2013.01.043.
  15. Dylewski R., Adamczyk J. Economic and Ecological Indicators for Thermal Insulating Building Investments. Energy and Buildings. 2012, no. 54, pp. 88—95. DOI: http://dx.doi.org/10.1016/j.enbuild.2012.07.021.
  16. Lapinskiene Vilune, Paulauskaite Sabina, Motuziene Violeta. The Analysis of the Efficiency of Passive Energy Saving Measures in Office Buildings. Environmental Engineering : Papers of the 8th International Conference. Vilnius, 2011, pp. 769—775.
  17. Duan X., Naterer G.F. Heat Transfer in a Tower Foundation with Ground Surface Insulation and Periodic Freezing and Thawing. International Journal of Heat and Mass Transfer. 2010, vol. 53, no. 11—12, pp. 2369—2376. DOI: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.02.003.
  18. Zukowski M., Sadowska B., Sarosiek W. Assessment of the Cooling Potential of an Earth-Tube Heat Exchanger in Residential Buildings. Environmental Engineering : Pap. of the 8th International Conference. May 19—20. 2011, Vilnius. Lithuania, vol. 2, pp. 830—834.
  19. Miseviciute V., Martinaitis V. Analysis of Ventilation System’s Heat Exchangers Integration Possibilities for Heating Season. Environmental engineering : Pap. of 8th Conf. of VGTU. 2011, vol. 2, pp. 781—787.
  20. Samarin O.D. Raschet temperatury na vnutrenney poverkhnosti naruzhnogo ugla zdaniya s sovremennym urovnem teplozashchity [Calculation of Temperature in the Internal Surface of the External Corner of a Building with Modern Level of Thermal Protection]. Izvestiya vysshikh uchebnykh zavedeniy. Stroitel’stvo [News of Higher Educational Institutions. Construction]. 2005, no. 8, pp. 52—56. (in Russian)

Download

Results 1 - 1 of 1