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Predrag Stojan Hrnjak

19982020
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Research Output 1998 2020

A correlation for heat transfer coefficient during stratified steam condensation in large flattened tubes with variable inclination and wall temperature

Davies, W. A. & Hrnjak, P., Jan 2020, In : International Journal of Heat and Mass Transfer. 146, 118666.

Research output: Contribution to journal › Article

wall temperature
Steam
heat transfer coefficients
steam
Heat transfer coefficients

Local heat transfer coefficient during stratified flow in large, flattened-tube steam condensers with non-uniform heat flux and wall temperature

Davies, W. A. & Hrnjak, P., Jan 2020, In : International Journal of Heat and Mass Transfer. 146, 118854.

Research output: Contribution to journal › Article

Condenser tubes
stratified flow
wall temperature
condensers
heat transfer coefficients

Nouvelle cartographie de la configuration d'écoulement pour l'ébullition de R410A en écoulement dans des tubes horizontaux à micro-ailettes tenant compte de l'effet de l'angle d'hélice

Translated title of the contribution: A new flow pattern map for flow boiling of R410A in horizontal micro-fin tubes considering the effect of the helix angleYang, C. M. & Hrnjak, P., Jan 2020, In : International Journal of Refrigeration. 109, p. 154-160 7 p.

Research output: Contribution to journal › Article

Flow patterns
Boiling liquids
Mass transfer
Visualization
Vapors

A flow regime map for condensation in macro and micro tubes with non-equilibrium effects taken into account

Xiao, J. & Hrnjak, P. S., Mar 2019, In : International Journal of Heat and Mass Transfer. 130, p. 893-900 8 p.

Research output: Contribution to journal › Article

Macros
Condensation
condensation
tubes
Visualization

Caractéristiques de l’écoulement du brouillard annulaire d'huile dans la canalisation de refoulement du compresseur

Translated title of the contribution: Characteristics of oil annular-mist flow in the compressor discharge pipeXu, J. & Hrnjak, P. S., Nov 2019, In : International Journal of Refrigeration. 107, p. 145-154 10 p.

Research output: Contribution to journal › Article

Fog
Compressors
Pipe
Oils
Discharge (fluid mechanics)