Hrnjak
Hrnjak
Illinois, CTS, Creative Thermal Solutions
Verified email at illinois.edu
Title
Cited by
Cited by
Year
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
3392008
Control-oriented modeling of transcritical vapor compression systems
BP Rasmussen, AG Alleyne
J. Dyn. Sys., Meas., Control 126 (1), 54-64, 2004
2142004
R-744 gas cooler model development and validation
JM Yin, CW Bullard, PS Hrnjak
International journal of refrigeration 24 (7), 692-701, 2001
1552001
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
1532006
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
1372007
Single phase pressure drop in microchannels
P Hrnjak, X Tu
International Journal of Heat and Fluid Flow 28 (1), 2-14, 2007
1142007
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
1122008
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
942004
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
892001
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
842008
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
802003
Flash gas bypass in mobile air conditioning system with R134a
H Tuo, P Hrnjak
international journal of refrigeration 35 (7), 1869-1877, 2012
792012
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
752011
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
732010
Single-phase pressure drop measurements in a microchannel heat exchanger
JM Yin, CW Bullard, PS Hrnjak
Heat Transfer Engineering 23 (4), 3-12, 2002
712002
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
702009
Ejector refrigeration: an overview of historical and present developments with an emphasis on air-conditioning applications
S Elbel, P Hrnjak
702008
Characterization of two-phase flow in microchannels
VG Nino, PS Hrnjak, TA Newell
Air Conditioning and Refrigeration Center TR-202, 2002
672002
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
Heat transfer and pressure drop of gas coolers
XD Fang, CW Bullard, PS Hrnjak
Transactions-American Society of heating refrigerating and air conditioning …, 2001
642001
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