37th UIT Heat Transfer Conference & Symposium Refrigerants: heat transfer and applications PROGRAM University of Padova, Italy June 24-26, 2019 Centro Linguistico di Ateneo Via Venezia, 16 - Padova www.uitconference2019.it The following sponsors are acknowledged for their support GOLD SPONSORS AERMEC SpA ARNEG SpA Blue Box Group Srl CAREL Industries SpA Frascold SpA M.T.A. SpA SILVER SPONSORS Alfa Laval SpA Clivet SpA Enex Srl HiRef SpA Rivoira Srl UNILAB Srl Welcome letter Dear Conference Delegate, Welcome to the 37th UIT Heat Transfer Conference, organized by the Department of Industrial Engineering at University of Padova (Italy) and held at Centro Linguistico di Ateneo, Padova, on June 24-26, 2019. The annual UIT Conference, which has grown over time, is held in Padova for the first time. The scope of the conference covers a range of many topics in theoretical, numerical and experimental heat transfer and related areas, ranging from energy efficiency to nuclear plants. This year the UIT Conference includes an International Symposium on “Refrigerants: heat transfer and applications”. This Symposium will be held on June 26, 2019, which is the first World Refrigeration Day and is organized in collaboration with CNR, Istituto per le Tecnologie della Costruzione. In this conference edition, 99 papers were contributed plus 3 keynote lectures and 5 invited lectures. We hope this conference will be a useful occasion to stimulate discussion, improve the understanding of heat transfer and related phenomena, present the state of the art of some topics, discuss emerging trends and promote collaborations. A special thank is due to the Organizing and Scientific Committees, to the Sponsors and to all the Participants. Davide Del Col and Luisa Rossetto Chairs of 37th UIT Heat Transfer Conference 1 CONFERENCE CHAIRS Davide Del Col - Università degli Studi di Padova Luisa Rossetto - Università degli Studi di Padova SCIENTIFIC COMMITTEE Walter Ambrosini – Università di Pisa, Italy Pietro Asinari – Politecnico di Torino, Italy Paolo Baggio – Università di Trento, Italy Neima Brauner – Tel Aviv University, Israel Gian Piero Celata – Centro Ricerche ENEA Casaccia, Roma, Italy Michele Ciofalo – Università degli Studi di Palermo, Italy Catherine Colin – Université de Toulouse III Paul Sabatier, France José Miguel Corberan – Universidad Politecnica de Valencia, Spain Paolo Di Marco – Università di Pisa, Italy Alberto Fichera – Università degli Studi di Catania, Italy Alessandro Franco – Università di Pisa, Italy Andrea Gasparella – Libera Università di Bolzano, Italy Oleg Kabov – Institute of Thermophysics, Russia Adriano Lezzi – Università degli Studi di Brescia, Italy Giovanni Longo – Università degli Studi di Padova, Italy Oronzio Manca – Seconda Università degli Studi di Napoli, Italy Rita Mastrullo – Università degli Studi di Napoli Federico II, Italy Josua Meyer – University of Pretoria, South Africa Silvia Minetto – Istituto per le Tecnologie della Costruzione, CNR, Italy Gian Luca Morini – Università degli Studi di Bologna, Italy Vincenzo Naso – Università degli Studi di Napoli Federico II, Italy Alfonso Niro – Politecnico di Milano, Italy Carlo Nonino – Università degli Studi di Udine, Italy Bjorn Palm – Royal Institute of Technology, Sweden Bruno Panella – Politecnico di Torino, Italy Fabio Polonara – Università Politecnica delle Marche, Italy Sara Rainieri – Università degli Studi di Parma, Italy Gherhardt Ribatski – University of Sao Paulo, Brazil Gianfranco Rizzo – Università degli Studi di Palermo, Italy Peter Stephan – Technische Universität Darmstadt, Germany Giovanni Tanda – Università degli Studi di Genova, Italy Claudio Zilio - Università degli Studi di Padova, Italy LOCAL ORGANIZING COMMITTEE Davide Del Col Luisa Rossetto Marco Azzolin Stefano Bortolin Andrea Diani Simone Dugaria Silvia Minetto Angelo Zarrella 2 PROGRAM AT-A-GLANCE MONDAY 24 JUNE TUESDAY 25 JUNE WEDNESDAY 26 JUNE 8:15 Registration 8:15 Registration SYMPOSIUM ON REFRIGERANTS 10:15 Opening ceremony – UIT Awards 9:00 Keynote lecture (E. Nobile) 10:40 Keynote lecture (S. Garimella) 9:50 Technical sessions 8:15 Registration 11:30 Technical sessions COMPUTATIONAL THERMAL FLUID DYNAMICS 1 9:00 Opening MULTIPHASE HEAT TRANSFER 1 SYSTEM MODELING 9:15 Keynote lecture (A. Cavallini) HEAT TRANSFER IN POROUS MEDIA / CONVECTION CONDUCTION HEAT TRANSFER 10:00 Invited lecture (S. Garimella) 10:30 Coffee break 10:35 Coffee break 3 12:50 Lunch 10:50 Technical sessions 10:55 Invited lecture (P. Hrnjak) 13:50 Poster session COMPUTATIONAL THERMAL FLUID DYNAMICS 2 Invited lecture (B. Palm) MULTIPHASE HEAT TRANSFER 3 Invited lecture (P. Neksa) 14:50 Technical sessions HEAT TRANSFER IN ENERGY SYSTEMS 2 Invited lecture (J.M. Corberan) MULTIPHASE HEAT TRANSFER 2 12:50 Lunch 13:15 Lunch MICROSCALE THERMAL FLUID DYNAMICS 14:00 Technical sessions 14:20 Technical sessions 16:30 Coffee break COMPUTATIONAL THERMAL FLUID DYNAMICS 3 REFRIGERANTS: HEAT TRANSFER 16:50 Technical sessions HEAT TRANSFER IN ENERGY SYSTEMS 3 REFRIGERANTS: APPLICATIONS HEAT TRANSFER IN NUCLEAR PLANTS 16:00 Coffee break HEAT TRANSFER IN ENERGY SYSTEMS 1 16:30 UIT Assembly 16:40 Coffee break 19:00 Bus departure from conference venue 17:00 Panel discussion 20:00 Cocktail at Palazzo della Ragione 20:00 Social dinner at Castello del Catajo 17:50 Closing ceremony 4 Monday, June 24 8:15 Registration 10:15 Opening ceremony – UIT Awards 10:40 Keynote lecture – Room T3 Session Chair: Luisa Rossetto Enabling compact thermal systems through insights on coupled heat and mass transfer phenomena Srinivas Garimella, Georgia Institute of Technology, USA Session 1 MULTIPHASE HEAT TRANSFER 1 Room T3 Session Chair: Bjorn Palm 11:30 Experimental analysis of drop-size density distribution during dropwise condensation of steam M. MIRAFIORI, R. PARIN, S.BORTOLIN, D. DEL COL 11:50 Two-phase heat transfer in 4.0 mm tube under different gravity conditions G. LANCIONE, D.M. ICERI, L. GUGLIERMETTI, L. SARACENO, G. ZUMMO, F. BISEGNA, F. NARDECCHIA 12:10 Water pool boiling on aluminum metal foams G. Righetti, M. Calati, L. Doretti, K. Hooman, S. Mancin 12:30 Thermal performance investigation by infrared analysis of mini pulsating heat pipe C. BONFIGLIO, F. BOZZOLI, L. CATTANI, N. IWATA, S. RAINIERI, P. VOCALE Session 2 HEAT TRANSFER IN POROUS MEDIA / CONVECTION Room T4 Session Chair: Pietro Asinari 11:30 Experimental determination of pressure drop of air flows through aluminium and nickel-chromium metallic foams S. CANCELLARA, M. GREPPI, G. FABBRI, M. DONGELLINI, C. BISERNI, G.L. MORINI 5 37th UIT Heat Transfer Conference 11:50 Onset of thermal convection in a horizontal porous layer saturated by a power–law fluid M. CELLI, A.N. IMPIOMBATO, A. BARLETTA 12:10 Natural convection in vertical channels with open-cell foams A. ANDREOZZI, N. BIANCO, M. IASIELLO, V. NASO 12:30 Thermal performance comparison between fan-coils using compact air-water heat exchangers based on finned or metallic foam surfaces S. CANCELLARA, M. GREPPI, G. FABBRI, M. DONGELLINI, C. BISERNI, G. L. MORINI 12:50 Lunch 13:50 POSTER SESSION Session Chairs: Sara Rainieri, Nicola Bianco P-1 Analytical solutions for the pseudo-conduction and boundary layer flows in a vertical enclosure with imposed wall heat fluxes A. FICHERA, A. PAGANO, R. VOLPE P-2 Numerical investigation on thermoelectric generators in an exhaust automotive line with aluminium foam B. BUONOMO, A. DI PASQUA, O. MANCA, S. NARDINI P-3 Measurements of spectrally averaged absorptivity and emissivity for a selective solar absorber in high vacuum under direct solar illumination C. D' ALESSANDRO, D. DE MAIO, D. DE LUCA, M. MUSTO, E. DI GENNARO, G. ROTONDO, D. DALENA, R. RUSSO P-4 Flow behaviour and pressure drop repeatability of viscous oil-water- air mixtures in medium/large horizontal pipes L.P.M. COLOMBO, M. GUILIZZONI, R. PATTANAIK, G. SOTGIA P-5 Saturation temperature effect on heat transfer coefficient and pressure drop during convective boiling of R1234ze(E) in microfin tubes L.P.M. COLOMBO, A. LUCCHINI, T.N. PHAN, L. MOLINAROLI, A. NIRO, M. POZZONI P-6 An optimized version of the VOFI library in 2D F. BALESTRIERI, A. CHIERICI, S. MANSERVISI, R. SCARDOVELLI, P. YECKO, S. ZALESKI 6 Monday, June 24 P-7 Numerical simulations of a three-dimensional conjugate heat transfer problem in a blanket shield module heat sink M. CAVALLONE, A. CHIERICI, R. DA VIÀ, V. GIOVACCHINI, S. MANSERVISI P-8 Bioheat transfer in a biological tissue: a comparison among different antennas configurations A. ANDREOZZI, L. BRUNESE, M. IASIELLO, C. TUCCI, G.P. VANOLI P-9 Numerical investigation of fluid flow and heat transfer characteristics in cooling of electrical motor by using nanofluid in the spiral channel A. DERISZADEH, F. DE MONTE P-10 Thermo-mechanical behaviour of an injection nozzle for a cogeneration system based on the aluminum/water reaction D. ANGELI, D. CASTAGNETTI, P. CINGI, A. LEONFORTE, F. MELCHIONDA, M. MILANI, L. MONTORSI, A. SORRENTINO, D. ZANNI P-11 Experimental study of a phase change material storage for low- temperature applications G. BESAGNI, L. CROCI P-12 Thermal efficiency of a concentrating solar collector under high- vacuum D. DE MAIO, C. D' ALESSANDRO, D. DE LUCA, M. MUSTO, E. DI GENNARO, G. ROTONDO, R. RUSSO P-13 Influence of the convective coefficient on the determination of thermal transmittance through outdoor infrared thermography I. NARDI, T. DE RUBEIS, D. PAOLETTI, D. AMBROSINI P-14 Modelling and simulation of convective industrial textile dryers F.F. FERRO, M. RAMPAZZO, E. SISTI P-15 A thermoeconomic based method for the design of process heat solar systems A. FRANCO, G. BERTOLA P-16 PM-O2 correlation in combustion processes in pellet stoves L. POLONINI, D. PETROCELLI, S. PARMIGIANI, A. LEZZI P-17 Performance of a solar assisted heat pump for building heating: control problems and improvements L.A. TAGLIAFICO, A. ARTECONI, A. CAVALLETTI, C. MARAFIOTI, A. MARCHITTO 7 37th UIT Heat Transfer Conference P-18 Experimental and modelling evaluation of possible solutions for compact design of producer-gas heat exchangers N. MORSELLI, M. PUGLIA, J. MASON, M. PARENTI, F. OTTANI, P. TARTARINI P-19 Energy performance of straw houses: two case studies in the northern part of Italy G.