Heat Transfer 2014 is the thirteenth conference in the well established series on Simulation and Experiments in Heat Transfer and its applications. The Heat Transfer conference started in Portsmouth, UK in 1988 followed by Milan, Italy (1992),Southampton, UK (1994), Udine, Italy (1996), Krakow, Poland (1998), Madrid, Spain (2000), Halkidiki, Greece (2002), Lisbon, Portugal (2004), New Forest, UK (2006), Maribor, Slovenia (2008), Tallinn, Estonia (2010) and Split, Croatia in 2012. The objective of the series is to provide a forum for presentation and discussion of advanced topics, new approaches and application of innovative advanced computational methods and experimental measurements to heat and mass transfer problems. Advances of computational methods for solving and understanding heat transfer problems continue to be important because heat transfer topics and related phenomena are commonly of a complex nature and different mechanisms like heat conduction, convection, turbulence, thermal radiation and phase change as well as chemical reactions may occur simultaneously. Typically, applications are found in heat exchangers, gas turbine cooling, turbulent combustion and fires, fuel cells, batteries, micro- and mini- channels, electronics cooling, melting and solidification, chemical processing etc. Heat Transfer might be regarded as an established and mature scientific discipline, but it has played a major role in new emerging areas such as sustainable development and reduction of greenhouse gases as well as for micro- and nano- scale structures and bioengineering. Non-linear phenomena other than momentum transfer may occur due to temperature-dependent thermophysical properties. In engineering design and development, reliable and accurate computational methods are requested to replace or complement expensive and time consuming experimental trial an error work.