THE VISUALISATION OF BOILING IN SMALL DIAMETER TUBES

Sheng, ChunHong; Palm, Björn

Heat Transfer & Transport Phenomena in Microscale

ISBN Druckformat: 1-56700-150-5

THE VISUALISATION OF BOILING IN SMALL DIAMETER TUBES

ChunHong Sheng Division of Applied Thermodynamics and Refrigeration Department of Energy technology Royal Institute of Technology 10044, STOCKHOLM, SWEDEN

Björn Palm Royal Institute of Technology (KTH); Department of Energy Technology, Brinellvagen 60,100 44 Stockholm, Sweden

Abstrakt

Flow boiling heat transfer for water in a single glass tube with small diameters (1mm, 1.6mm, 2mm, 4mm) has been visualised experimentally using a high-speed video camera. The experiments were done at atmospheric pressure with heat flux from 6.3kW/m² to 40 kW/ m², mass flow rate from 52 kg/ m²s to 518 kg/ m²s, inlet temperature from 20 °C to 97 °C and different flow directions (upward, downward and horizontal). The bubble shape and flow pattern for boiling were investigated.

Begell Recommend

Electrospinning of Micro- and Nanofibers: Fundamentals in Separation and Filtration Processes Y. Filatov
A. Budyka
V. Kirichenko ISBN Druckformat: 978-1-56700-241-6
ISBN Online: 978-1-56700-240-9

Thermal Radiation in Disperse Systems: An Engineering Approach Leonid A. Dombrovsky
Dominique Baillis ISBN Druckformat: 978-1-567000-268-3
ISBN Online: 978-1-56700-351-2