Introduction

Background

Objectives


Test facility

Diagnostic techniques


Cross-flow influence

Overall boiling curves

Intermittent cooling efficiency

Heat transfer correlations






 

 
Advances in Intermittent Spray Impact Research

micro nano engineering
   

  Heat transfer correlations

Our research has provided heat transfer correlations for:

- the total average heat flux as function of the system’ operating conditions





- the spray/wall heat transfer between the droplets’ characteristics and surface thermal behaviour for single-pulses (Panão and Moreira, 2007). The figure includes a comparison with results obtained in cryogen spray cooling.



References
  • Moreira, A.L.N. and Panão, M.R.O. (2006) “Heat transfer at multiple-intermittent impacts of a hollow cone spray”, International Journal of Heat and Mass Transfer, v.49, pp.4132-4151.
  • Panão, M.R.O. and Moreira, A.L.N. (2007) “Interpreting the influence of fuel spray impact on mixture preparation for HCCI combustion with port-fuel injection”, Proceedings of the Combustion Institute, v.31, pp. 2205-2213.