U-PHOS Project: Development of a Large Diameter Pulsating Heat Pipe Experiment on board REXUS 22. Nannipieri, P., Anichini, M., Barsocchi, L., Becatti, G., Buoni, L., Celi, F., Catarsi, A., Di Giorgio, P., Fattibene, P., Ferrato, E., Guardati, P., Mancini, E., Meoni, G., Nesti, F., Piacquadio, S., Pratelli, E., Quadrelli, L., Viglione, A., Zanaboni, F., Mameli, M., Baronti, F., Fanucci, L., Marcuccio, S., Bartoli, C., Di Marco, P., Bianco, N., Marengo, M., & Filippeschi, S. Journal of Physics: Conference Series, 2017.
abstract   bibtex   
© Published under licence by IOP Publishing Ltd. U-PHOS Project aims at analysing and characterising the behaviour of a large diameter Pulsating Heat Pipe (PHP) on board REXUS 22 sounding rocket. A PHP is a passive thermal control device where the heat is efficiently transported by means of the self-sustained oscillatory fluid motion driven by the phase change phenomena. Since, in milli-gravity conditions, buoyancy forces become less intense, the PHP diameter may be increased still maintaining the slug/plug typical flow pattern. Consequently, the PHP heat power capability may be increased too. U-PHOS aims at proving that a large diameter PHP effectively works in milli-g conditions by characterizing its thermal response during a sounding rocket flight. The actual PHP tube is made of aluminum (3 mm inner diameter, filled with FC-72), heated at the evaporator by a compact electrical resistance, cooled at the condenser by a Phase Change Material (PCM) embedded in a metallic foam. The tube wall temperatures are recorded by means of Fibre Bragg Grating (FBG) sensors; the local fluid pressure is acquired by means of a pressure transducer. The present work intends to report the actual status of the project, focusing in particular on the experiment improvements with respect to the previous campaign.
@article{
 title = {U-PHOS Project: Development of a Large Diameter Pulsating Heat Pipe Experiment on board REXUS 22},
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 year = {2017},
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 abstract = {© Published under licence by IOP Publishing Ltd. U-PHOS Project aims at analysing and characterising the behaviour of a large diameter Pulsating Heat Pipe (PHP) on board REXUS 22 sounding rocket. A PHP is a passive thermal control device where the heat is efficiently transported by means of the self-sustained oscillatory fluid motion driven by the phase change phenomena. Since, in milli-gravity conditions, buoyancy forces become less intense, the PHP diameter may be increased still maintaining the slug/plug typical flow pattern. Consequently, the PHP heat power capability may be increased too. U-PHOS aims at proving that a large diameter PHP effectively works in milli-g conditions by characterizing its thermal response during a sounding rocket flight. The actual PHP tube is made of aluminum (3 mm inner diameter, filled with FC-72), heated at the evaporator by a compact electrical resistance, cooled at the condenser by a Phase Change Material (PCM) embedded in a metallic foam. The tube wall temperatures are recorded by means of Fibre Bragg Grating (FBG) sensors; the local fluid pressure is acquired by means of a pressure transducer. The present work intends to report the actual status of the project, focusing in particular on the experiment improvements with respect to the previous campaign.},
 bibtype = {article},
 author = {Nannipieri, P. and Anichini, M. and Barsocchi, L. and Becatti, G. and Buoni, L. and Celi, F. and Catarsi, A. and Di Giorgio, P. and Fattibene, P. and Ferrato, E. and Guardati, P. and Mancini, E. and Meoni, G. and Nesti, F. and Piacquadio, S. and Pratelli, E. and Quadrelli, L. and Viglione, A.S. and Zanaboni, F. and Mameli, M. and Baronti, F. and Fanucci, L. and Marcuccio, S. and Bartoli, C. and Di Marco, P. and Bianco, N. and Marengo, M. and Filippeschi, S.},
 journal = {Journal of Physics: Conference Series},
 number = {1}
}
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