Instalacija za eksperimentalna istraživanja prirodne i prirodno-prinudne (mešovite) konvekcije duž vertikalne termo-aktivne sobne površine
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Jul 10, 2017
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Apstrakt
Dobro projektovane eksperimentalne instalacije omogućavaju istaživačima visok stepen pouzdanosti rezultata i omogućavaju istraživanja pri različitim graničnim uslovima. Ovaj rad predstavlja visoko sofisticiranu aparaturu (instalaciju) za eksperimentalno istraživanje prirodne i mešovite (prirodno-prinudne) konvekcije koja se nalazi u "Lindab IMP Klima – , Godovič, u Sloveniji. Prikazane su karakteri-stike osnovnih elemenata instalacije koja se sastoji od termostatske komore, vertikalnog termoaktivnog sobnog zida koji može služiti za grejanje ili hlađenje i sistema ventilacije koji je potreban za postizanje uslova mešovite konvekcije. Takođe, u radu je prikazan sistem za akviziciju podataka i upravljanje celokupnom eksperimentalnom opremom u okviru instalacije. Instalacija služi za istraživanje prirodne i mešovite konvekcije pri različitim graničnim uslovima, veći deo studije će biti objavljen u budućnosti, kada nove činjenice o prirodnoj i mešovitoj konvekciji budu otkrivene, a deo rezultata je već objavljen [1-5].
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Kako citirati
VENKO, Samo et al.
Instalacija za eksperimentalna istraživanja prirodne i prirodno-prinudne (mešovite) konvekcije duž vertikalne termo-aktivne sobne površine.
Zbornik Međunarodnog kongresa i izložbe o KGH, [S.l.], v. 47, n. 1, p. 595-609, july 2017.
Dostupno na: <https://izdanja.smeits.rs/index.php/kghk/article/view/2753>. Datum pristupa: 16 oct. 2026
Sekcija
Napredak analitičkih i eksperimentalnih metoda
Reference
[1] Venko, S., D. Vidal, C. Arkar, S. Medved, An experimental study of natural and mixed convection over cooled vertical room wall, Energy and buildings, 2014, vol. 68, part A, 387-395.
[2] Venko, S., E. Pavlovič, C. Arkar, S. Medved, An experimental study of mixed convection over various thermal activation lengths of vertical TABS, Energy and buildings, 2015, vol. 98, 151-160.
[3] Venko, S., E. Pavlovič, D. Vidal, B. Vidrih, S. Medved, Enhanced heat trans-fer on room surfaces used for environmental friendly cooling with renewable energy sources, International Symposium Renewable Energy Sources and Healthy Buildings, Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Belgrade, Serbia, 2013, file 23.
[4] Venko, S., E. Pavlovič, C. Arkar, S. Medved, Natural convection on thermo active wall at real boundary conditions in non-empty closed room = Prirodna konvekcija sa termo-aktivnog zida u realnim graničnim uslovima u zatvorenom prostoru koji nije prazan, 47. Međunarodni Kongres I Izložba O KGH, Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Društvo za KGH, Belgrade, Serbia, 2015, 115-125.
[5] Venko, S., E. Pavlovič, C. Arkar, S. Medved, Experimental study of effects to mixed convection under real boundary conditions in non-empty room, CLIMA 2016: 12th REHVA World Congress, Aalborg University, Aalborg, Denmark, 2016, Vol. 9, 115 – 125.
[6] Awbi, H.B., A. Hatton, Natural convection from heated room surfaces, Energy and Buildings, 1999, vol. 30, 233 – 244.
[7] Khalifa, A., R. Marshall, Validation of heat transfer coefficients on interior building surfaces using real-sized indoor test cell, International Journal of Heat and Mass Transfer, 1990, vol. 33, 2219 – 2236.
[8] Allard, F., J. Brau, C. Inard, J. M. Pallier, Thermal Experiments of Full-scale Dwelling Cells in Artificial Climatic Conditions, Energy and buildings, 1987, vol. 10, 49 – 58.
[9] Goldstein, K., A. Novoselac, Convective heat transfer in rooms with ceiling slot diffusers, HVAC&R Research Journal, 2010, vol. 16, 629 – 656.
[10]Venko, S., B. Vidrih, E. Pavlovič, S. Medved, Enhanced heat transfer on thermo active cooling wall, Strojniški vestnik, 2012, vol. 58, 623-632.
[11]Churchill, S., H. Chu, Correlating equations for laminar and turbulent free convection from a vertical plate International Journal of Heat and Mass Trans-fer, 1975, vol. 18, 1323 – 1329.
[12]Fohanno, S., G. Polidori, Modelling of natural convective heat transfer at an internal surface, Energy and Buildings, 2006, vol. 38, 548 – 553.
[13]Polidori, G., C. Popa, T. H. Mai, Transient flow rate behaviour in an external natural convection boundary layer, Mechanics Research Communications, 2003, vol. 30, 615 – 621.
[14] Varga, C., S. Fohanno, G. Polidori, Turbulent boundary-layer buoyant flow modeling over a wide Prandtl number range, Acta Mechanica, 2004, vol. 172, 65 – 73.
[15]Khalifa, A., R. Marshall, Validation of heat transfer coefficients on interior building surfaces using real-sized indoor test cell, International Journal of Heat and Mass Transfer, 1990, vol. 33, 2219 – 2236.
[16] Spitler, J.D., C. O. Pedersen, An ecperimental facility for investigation of interior convective heat transfer, ASHRAE Transactions, 1991a, vol. 97, 497 – 504.
[17] Spitler, J.D., C. O. Pedersen, D. E. Fisher, Interior convective heat transfer in buildings with large ventilative flow rates, ASHRAE Transactions, 1991b, vol. 97, 505 – 515.
[18] Fisher, D. E., C. O. Pedersen, Convective Heat Transfer in Building Energy and Thermal Load Calculations, ASHRAE Transactions, 1997, vol. 103, 137 – 148.
[19] Awbi, H.B., A. Hatton, Mixed convection from heated room surfaces, Energy and buildings, 2000, vol. 32, 153 – 166.
[20] Novoselac, A., B. Burley, J. Srebric, Development of new and validation of existing convection correlations for rooms with displacement ventilation sys-tems, Energy and Buildings, 2006, vol. 38, 163 – 173.
[21]EN 442-2:1996, Radiators and convectors – Part 2: Test methods and rating, Brussels, Belgium, European Committee for Standardization, 1996.
[22] Author – ™ s personal correspondence with Miha Steinbuecher, Helios LTD.
[23] ANSYS Fluent [online], Canonsburg, ZDA: ANSYS, Inc. http://www.ansys.com/Products/Fluids/ANSYS-Fluent (accessible on 11th of September 2016).
[24]OMNIGRAD M TS T90, Technical information [online]. Raeinach, Schwitzer-land, Endress+Hauser
[25] EN 13182:2002, Ventilation for buildings - Instrumentation requirements for air velocity measurements in ventilated spaces, Brussels, Belgium, European Committee for Standardization, 2002.
[26] IEC 60751:2008, Industrial platinum resistance thermometers and platinum temperature sensors, Geneva, Switzerland, International Electrotechnical Commision, 2008.
[27] Operator's Manual Low Air Velocity and Air Temperature Measuring System HT-400. Gliwice, Poland, Sensor-Electronic.
[28] Produkte [online], Cottbus, Germany, Phymeas GbR, http://www.phymeas.de, (accessible on 11th of September 2016). ENHANCED HEAT TRANSFER OVER THERMO – ACTIVE BUILDING SYSTEMS
[29] Venko, S., Enhanced heat transfer over thermo – active building systems, Ph.D Thesis, University of Ljubljana, Ljubljana, Slovenia, 2014.
[30]Forthmann, E, Turbulent jet expansion, Technical memorandum no. 789, Na-tional Advisory Committee for Aeronautics, USA, 1934.
[31]Yu, H., Liao C. M., CHIANG, K. C, Scale model study of airflow perfor-mance in a ceiling slot-ventilated, enclosure: Non-isothermal condition, Build-ing and Environment, 2007, vol. 42, 1142 - 1150.
[32] Cao, G., J. Kurnitski, M. Ruponen, O. Seppanen, Experimental investigation and modelling of a buoyant attached plane jet in a room, Applied Thermal Engi-neering, 2007, vol. 29, 2790 – 2798.
[33]EN ISO 5167-1:2003, Measurement of fluid flow by means of pressure differen-tial devices inserted in circular cross-section conduits running full – Part 1: General principles and requirements. Brussels, Belgium, European Committee for Standardization, 2003.
[34]EN ISO 5167-2:2003, Measurement of fluid flow by means of pressure differen-tial devices inserted in circular cross-section conduits running full – Part 2: Orifice plate, Brussels, Belgium, European Committee for Standardization, 2003.
[35] Bajsič, I., I. M. Dolenc, Merilna negotovost pri merjenju tokov fluidov na pod-lagi dušilnih metod (Uncertainty of measurement in fluid flow measurement on the basis of differential pressure methods), Strojniški Vestnik – Journal of Mec-hanical Engineering, 1994, vol. 40, 107 – 114.
[36] Goethals, K., H. Breesch, A. Janssens, Sensitivity analysis of predicted night cooling performance to internal convective heat transfer modeling, Energy and Buildings, 2011, vol. 43, 2429 – 2441.
[2] Venko, S., E. Pavlovič, C. Arkar, S. Medved, An experimental study of mixed convection over various thermal activation lengths of vertical TABS, Energy and buildings, 2015, vol. 98, 151-160.
[3] Venko, S., E. Pavlovič, D. Vidal, B. Vidrih, S. Medved, Enhanced heat trans-fer on room surfaces used for environmental friendly cooling with renewable energy sources, International Symposium Renewable Energy Sources and Healthy Buildings, Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Belgrade, Serbia, 2013, file 23.
[4] Venko, S., E. Pavlovič, C. Arkar, S. Medved, Natural convection on thermo active wall at real boundary conditions in non-empty closed room = Prirodna konvekcija sa termo-aktivnog zida u realnim graničnim uslovima u zatvorenom prostoru koji nije prazan, 47. Međunarodni Kongres I Izložba O KGH, Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije (SMEITS), Društvo za KGH, Belgrade, Serbia, 2015, 115-125.
[5] Venko, S., E. Pavlovič, C. Arkar, S. Medved, Experimental study of effects to mixed convection under real boundary conditions in non-empty room, CLIMA 2016: 12th REHVA World Congress, Aalborg University, Aalborg, Denmark, 2016, Vol. 9, 115 – 125.
[6] Awbi, H.B., A. Hatton, Natural convection from heated room surfaces, Energy and Buildings, 1999, vol. 30, 233 – 244.
[7] Khalifa, A., R. Marshall, Validation of heat transfer coefficients on interior building surfaces using real-sized indoor test cell, International Journal of Heat and Mass Transfer, 1990, vol. 33, 2219 – 2236.
[8] Allard, F., J. Brau, C. Inard, J. M. Pallier, Thermal Experiments of Full-scale Dwelling Cells in Artificial Climatic Conditions, Energy and buildings, 1987, vol. 10, 49 – 58.
[9] Goldstein, K., A. Novoselac, Convective heat transfer in rooms with ceiling slot diffusers, HVAC&R Research Journal, 2010, vol. 16, 629 – 656.
[10]Venko, S., B. Vidrih, E. Pavlovič, S. Medved, Enhanced heat transfer on thermo active cooling wall, Strojniški vestnik, 2012, vol. 58, 623-632.
[11]Churchill, S., H. Chu, Correlating equations for laminar and turbulent free convection from a vertical plate International Journal of Heat and Mass Trans-fer, 1975, vol. 18, 1323 – 1329.
[12]Fohanno, S., G. Polidori, Modelling of natural convective heat transfer at an internal surface, Energy and Buildings, 2006, vol. 38, 548 – 553.
[13]Polidori, G., C. Popa, T. H. Mai, Transient flow rate behaviour in an external natural convection boundary layer, Mechanics Research Communications, 2003, vol. 30, 615 – 621.
[14] Varga, C., S. Fohanno, G. Polidori, Turbulent boundary-layer buoyant flow modeling over a wide Prandtl number range, Acta Mechanica, 2004, vol. 172, 65 – 73.
[15]Khalifa, A., R. Marshall, Validation of heat transfer coefficients on interior building surfaces using real-sized indoor test cell, International Journal of Heat and Mass Transfer, 1990, vol. 33, 2219 – 2236.
[16] Spitler, J.D., C. O. Pedersen, An ecperimental facility for investigation of interior convective heat transfer, ASHRAE Transactions, 1991a, vol. 97, 497 – 504.
[17] Spitler, J.D., C. O. Pedersen, D. E. Fisher, Interior convective heat transfer in buildings with large ventilative flow rates, ASHRAE Transactions, 1991b, vol. 97, 505 – 515.
[18] Fisher, D. E., C. O. Pedersen, Convective Heat Transfer in Building Energy and Thermal Load Calculations, ASHRAE Transactions, 1997, vol. 103, 137 – 148.
[19] Awbi, H.B., A. Hatton, Mixed convection from heated room surfaces, Energy and buildings, 2000, vol. 32, 153 – 166.
[20] Novoselac, A., B. Burley, J. Srebric, Development of new and validation of existing convection correlations for rooms with displacement ventilation sys-tems, Energy and Buildings, 2006, vol. 38, 163 – 173.
[21]EN 442-2:1996, Radiators and convectors – Part 2: Test methods and rating, Brussels, Belgium, European Committee for Standardization, 1996.
[22] Author – ™ s personal correspondence with Miha Steinbuecher, Helios LTD.
[23] ANSYS Fluent [online], Canonsburg, ZDA: ANSYS, Inc. http://www.ansys.com/Products/Fluids/ANSYS-Fluent (accessible on 11th of September 2016).
[24]OMNIGRAD M TS T90, Technical information [online]. Raeinach, Schwitzer-land, Endress+Hauser
[25] EN 13182:2002, Ventilation for buildings - Instrumentation requirements for air velocity measurements in ventilated spaces, Brussels, Belgium, European Committee for Standardization, 2002.
[26] IEC 60751:2008, Industrial platinum resistance thermometers and platinum temperature sensors, Geneva, Switzerland, International Electrotechnical Commision, 2008.
[27] Operator's Manual Low Air Velocity and Air Temperature Measuring System HT-400. Gliwice, Poland, Sensor-Electronic.
[28] Produkte [online], Cottbus, Germany, Phymeas GbR, http://www.phymeas.de, (accessible on 11th of September 2016). ENHANCED HEAT TRANSFER OVER THERMO – ACTIVE BUILDING SYSTEMS
[29] Venko, S., Enhanced heat transfer over thermo – active building systems, Ph.D Thesis, University of Ljubljana, Ljubljana, Slovenia, 2014.
[30]Forthmann, E, Turbulent jet expansion, Technical memorandum no. 789, Na-tional Advisory Committee for Aeronautics, USA, 1934.
[31]Yu, H., Liao C. M., CHIANG, K. C, Scale model study of airflow perfor-mance in a ceiling slot-ventilated, enclosure: Non-isothermal condition, Build-ing and Environment, 2007, vol. 42, 1142 - 1150.
[32] Cao, G., J. Kurnitski, M. Ruponen, O. Seppanen, Experimental investigation and modelling of a buoyant attached plane jet in a room, Applied Thermal Engi-neering, 2007, vol. 29, 2790 – 2798.
[33]EN ISO 5167-1:2003, Measurement of fluid flow by means of pressure differen-tial devices inserted in circular cross-section conduits running full – Part 1: General principles and requirements. Brussels, Belgium, European Committee for Standardization, 2003.
[34]EN ISO 5167-2:2003, Measurement of fluid flow by means of pressure differen-tial devices inserted in circular cross-section conduits running full – Part 2: Orifice plate, Brussels, Belgium, European Committee for Standardization, 2003.
[35] Bajsič, I., I. M. Dolenc, Merilna negotovost pri merjenju tokov fluidov na pod-lagi dušilnih metod (Uncertainty of measurement in fluid flow measurement on the basis of differential pressure methods), Strojniški Vestnik – Journal of Mec-hanical Engineering, 1994, vol. 40, 107 – 114.
[36] Goethals, K., H. Breesch, A. Janssens, Sensitivity analysis of predicted night cooling performance to internal convective heat transfer modeling, Energy and Buildings, 2011, vol. 43, 2429 – 2441.