Pfeiler was born in Leoben, Austria, in 1978. She received her M.Sc degree in Industrial J. Spijker was born in Bregenz, Austria, in 1984. He received his M.Sc degree in Industrial Raupenstrauch is professor of the Chair of Thermal Processing Technology a

Copyright © 2011 Praise Worthy Prize S.r.l. - All rights reserved International Review of Mechanical Engineering, Vol. 5, N. 2 Special Issue on Heat Transfer 225 have to be used to get similar results. Therefore, the standard values in FLUENT of 2 for Phi and 1 for Theta should not be used for accurate predictions. The DO model is more complex than the DTRM and usually needs more computation time. However, with considering the fewer amount of rays for the DO model, the computation time is also shorter. For industry, which is interested in the simulation of industrial kilns, the combination of the flamelet combustion model, the DO radiation model and the realizable k- ε model for turbulence with a modified constant C 2 is an attractive fast and accurate method to predict the distribution of temperature and mean concentrations. The prediction of NO x is not evaluated in this paper, but it is planned for further research, where the slow formation rates and its sensitiveness to temperature have to be considered as well. Acknowledgements The research program of the Competence Center for Excellent Technologies in “Advanced Metallurgical and Environmental Process Development” K1-MET has been financially supported within the Austrian competence centre programme COMET Competence Center for Excellent Technologies by the Federal Ministry of Economy, Family and Youth; by the Federal Ministry for Transport, Innovation and Technology; by the provinces of Upper Austria, Styria and Tyrol, by the Styrian Business Promotion Agency and by the Tiroler Zukunftsstiftung. The authors wish to express their appreciation to our project partners RHI AG, voestalpine Stahl GmbH, Siemens-VAI and EBNER Industrieofenbau GmbH for their experiences and financial support. References [1] J. H. W. Lau, Combustion and Flame, n. 102, pp. 209-215, 1995. [2] S. B. Pope, Progress Energy Combustion Science, n. 11, pp. 119- 192, 1985. [3] S. B. Pope, Combustion Theory and Modelling, n. 1, pp. 41-63, 1997. [4] B. Panjwani et al. 5 th Europ. Conf. on CFD ECCOMAS CFD, Lisbon, 2010. [5] S. M. Kaustubh, V. V. Ranade, Asia-Pac. J. Chem. Eng, n. 3, pp. 106-118, 2008. [6] B. F. Magnussen, B. H. Hjertager, Proc. 16 th Symp. on Comb., Pittsburg, 1976. [7] N. Peters, Prog. Energy Combust. Sci., n. 10, pp. 319-339, 1984. [8] N. Peters, Proc. 21 st Symp. Int. on Combustion, Pittsburgh, 1986, pp. 1231-1250. [9] N. Peters, Turbulent Combustion, Cambridge University Press Cambridge, 2000, 235-249. [10] H. Pitsch et al., SAE Paper 962057, SAE, 1996. [11] J. S. Kim, F. A. Williams, Eng. Math, n. 31, pp. 101-118, 1997. [12] W. P. Jones, J. H. Whitelaw, Combustion and Flame, n. 48, pp. 1- 26, 1982. [13] Fluent Inc., FLUENT 6.3 Users Guide 2006. [14] T.-H. Shih et al., Computers Fluids, Vol. 24, n. 3, pp. 227-238, 1995. [15] R. S. Barlow, J.-Y. Chen eds., Proc. 3 rd TNF Conf., Boulder, 1998. [16] C. Schneider et al., Combustion and Flame, n. 135, pp. 185-190, 2003. [17] J. Y. Murthy, S. R. Mathur, A Finite Volume Method For Radiative Heat Transfer Using Unstructured Meshes, AIAA-98- 0860, 1998. [18] T. F. Smith et al., ASME J. Heat Transfer, n. 104, pp. 602-608, 1982. [19] C. J. Spijker, Unsteady Laminar Flamelet Modellierung zur Beschreibung von Mündungsmischbrennern, master‘s thesis, Dept. Metallurgy, University of Leoben, Austria, 2010. [20] G. P. Smith et al., www.me.berkeley.edugri_mech Authors’ information Chair of Thermal Processing Technology, Department Metallurgy, University of Leoben, Franz-Josef-Str. 18, 8700 Leoben, Austria.

C. Pfeiler was born in Leoben, Austria, in 1978. She received her M.Sc degree in Industrial

Environmental Protection, Waste Disposal Technology and Recycling and her Ph.D. degree in Metallurgy, from the University of Leoben, Austria, in 2003 and 2008, respectively. Her previous research focused on multi phase simulations in the field of continuous casting of steel. Recently her activities are focused on computer simulations of combustion processes. E-mail: claudia.pfeilerunileoben.ac.at

C. J. Spijker was born in Bregenz, Austria, in 1984. He received his M.Sc degree in Industrial

Environmental Protection, Waste Disposal Technology and Recycling from the University of Leoben, Austria in 2010. He is presently working on his Ph.D. His research is focused on combustion of particles.

H. Raupenstrauch is professor of the Chair of Thermal Processing Technology at the

University of Leoben, Austria. He was born in Schwanenstadt, Austria, in 1961. He received his M.Sc. degree in Chemical Engineering and his Ph.D. in the field of computer simulation of reactive flow in packed beds, from the Graz University of Technology, Austria, in 1988 and 1991, respectively. His research is focused on heat transport phenomena, refuse derived fuels, fuel technology, energy optimization and plant safety. Special Issue on Heat Transfer, February 2011 Manuscript received and revised January 2011, accepted February 2011 Copyright © 2011 Praise Worthy Prize S.r.l. - All rights reserved 226 Conduction Calorimetry: Some Remarks in Improved Devices C. Auguet 1,2 , J. L. Pelegrina 3 , V. Torra 1 Abstract – An analysis of the systematic uncertainties in conduction calorimetry is presented. There are mainly due to the relative position of the spot of the dissipation in the sample with respect to the heat detector. In addition, wrong information is reported due to the misunderstanding between resolution and accuracy. Particular cases of miniaturized Si-based system are analyzed and some difficulties originated in conventional calorimeters from the bad interpretation of results in martensitic transformation of shape memory alloys are discussed. Copyright © 2011 Praise Worthy Prize S.r.l. - All rights reserved. Keywords: Calorimetry, Sensitivity, Si-Based Calorimeters, Reproducibility

I. Introduction