Hrnjak
Hrnjak
Illinois, CTS, Creative Thermal Solutions
Verified email at illinois.edu
TitleCited byYear
Experimental validation of a prototype ejector designed to reduce throttling losses encountered in transcritical R744 system operation
S Elbel, P Hrnjak
International Journal of Refrigeration 31 (3), 411-422, 2008
3002008
Control-oriented modeling of transcritical vapor compression systems
BP Rasmussen, AG Alleyne
Journal of dynamic systems, measurement, and control 126 (1), 54-64, 2004
1982004
Frost, defrost, and refrost and its impact on the air-side thermal-hydraulic performance of louvered-fin, flat-tube heat exchangers
Y Xia, Y Zhong, PS Hrnjak, AM Jacobi
International Journal of Refrigeration 29 (7), 1066-1079, 2006
1422006
R-744 gas cooler model development and validation
JM Yin, CW Bullard, PS Hrnjak
International Journal of Refrigeration 24 (7), 692-701, 2001
1342001
CO2 and R410A flow boiling heat transfer, pressure drop, and flow pattern at low temperatures in a horizontal smooth tube
CY Park, PS Hrnjak
International Journal of Refrigeration 30 (1), 166-178, 2007
1282007
Single phase pressure drop in microchannels
P Hrnjak, X Tu
International Journal of Heat and Fluid Flow 28 (1), 2-14, 2007
1072007
Experimental and numerical study on microchannel and round-tube condensers in a R410A residential air-conditioning system
CY Park, P Hrnjak
International journal of refrigeration 31 (5), 822-831, 2008
912008
Flash gas bypass for improving the performance of transcritical R744 systems that use microchannel evaporators
S Elbel, P Hrnjak
International Journal of Refrigeration 27 (7), 724-735, 2004
832004
Contribution of internal heat exchanger to transcritical R-744 cycle Performance
DE Boewe, CW Bullard, JM Yin, PS Hrnjak
HVAC&R Research 7 (2), 155-168, 2001
802001
Experimental results of transcritical CO2 heat pump for residential application
MR Richter, SM Song, JM Yin, MH Kim, CW Bullard, PS Hrnjak
Energy 28 (10), 1005-1019, 2003
752003
Microchannel heat exchangers for charge minimization in air-cooled ammonia condensers and chillers
P Hrnjak, AD Litch
International Journal of Refrigeration 31 (4), 658-668, 2008
732008
Experimental investigation on two-phase flow boiling heat transfer of five refrigerants in horizontal small tubes of 0.5, 1.5 and 3.0 mm inner diameters
JT Oh, AS Pamitran, KI Choi, P Hrnjak
International Journal of Heat and Mass Transfer 54 (9-10), 2080-2088, 2011
672011
CO2 flow condensation heat transfer and pressure drop in multi-port microchannels at low temperatures
CY Park, P Hrnjak
International Journal of Refrigeration 32 (6), 1129-1139, 2009
672009
An experimental investigation of transcritical carbon dioxide systems for residential air conditioning
AC Beaver, JM Yin, CW Bullard, PS Hrnjak
Air Conditioning and Refrigeration Center CR-18, 1999
671999
Flash gas bypass in mobile air conditioning system with R134a
H Tuo, P Hrnjak
international journal of refrigeration 35 (7), 1869-1877, 2012
662012
Ejector refrigeration: an overview of historical and present developments with an emphasis on air-conditioning applications
S Elbel, P Hrnjak
622008
Single-phase pressure drop measurements in a microchannel heat exchanger
JM Yin, CW Bullard, PS Hrnjak
Heat Transfer Engineering 23 (4), 3-12, 2002
622002
Characteristics of two-phase flow pattern transitions and pressure drop of five refrigerants in horizontal circular small tubes
AS Pamitran, KI Choi, JT Oh, P Hrnjak
International Journal of Refrigeration 33 (3), 578-588, 2010
612010
Dynamic modeling and control of single and multi-evaporator subcritical vapor compression systems
R Shah, AG Alleyne, CW Bullard, BP Rasmussen, PS Hrnjak
Air Conditioning and Refrigeration Center TR-216, 2003
602003
Characterization of two-phase flow in microchannels
VG Nino, PS Hrnjak, TA Newell
Air Conditioning and Refrigeration Center TR-202, 2002
572002
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