Hrnjak

Hrnjak

University of Illinois at Urbana-Champaign

H-index: 51

North America-United States

About Hrnjak

Hrnjak, With an exceptional h-index of 51 and a recent h-index of 31 (since 2020), a distinguished researcher at University of Illinois at Urbana-Champaign,

His recent articles reflect a diverse array of research interests and contributions to the field:

Experimental study of R448A flow boiling in a 24-port microchannel tube

Performance of an automotive reversible CO2 heat pump system during periodic frosting-defrosting cycles

Theoretical and experimental investigation on the effects of internal heat exchangers on a reversible automobile R744 air-conditioning system under various operating conditions

The effect of fluid properties on development of two-phase flow after an expansion valve based on the comparison of R245fa and R134a

Développement d'un écoulement diphasique adiabatique après un détendeur: développement d'un écoulement dans un tube de 8 mm

A mechanistic model in annular flow in microchannel tube for predicting heat transfer coefficient and pressure gradient

Effect of single-phase flow maldistribution on the thermal performance of brazed plate heat exchangers

Measurement and modeling of void fraction for developing two-phase flow of R134a in a horizontal tube after an expansion valve

Hrnjak Information

University

Position

CTS Creative Thermal Solutions

Citations(all)

10243

Citations(since 2020)

4071

Cited By

7840

hIndex(all)

51

hIndex(since 2020)

31

i10Index(all)

243

i10Index(since 2020)

126

Email

University Profile Page

Google Scholar

Top articles of Hrnjak

Title

Journal

Author(s)

Publication Date

Experimental study of R448A flow boiling in a 24-port microchannel tube

International Journal of Refrigeration

Houpei Li

Pega Hrnjak

2024/2/1

Performance of an automotive reversible CO2 heat pump system during periodic frosting-defrosting cycles

Applied Thermal Engineering

Wenying Zhang

Wenzhe Li

Pega Hrnjak

2024/1/10

Theoretical and experimental investigation on the effects of internal heat exchangers on a reversible automobile R744 air-conditioning system under various operating conditions

Journal of Materials Processing Technology

Yupeng He

Tianfeng Zhou

A Senthil Kumar

Xibin Wang

2022/12/1

The effect of fluid properties on development of two-phase flow after an expansion valve based on the comparison of R245fa and R134a

International Journal of Refrigeration

Yufang Yao

Pega Hrnjak

2023/12/11

Développement d'un écoulement diphasique adiabatique après un détendeur: développement d'un écoulement dans un tube de 8 mm

International Journal of Refrigeration

Yufang Yao

Pega Hrnjak

2023/5

A mechanistic model in annular flow in microchannel tube for predicting heat transfer coefficient and pressure gradient

International Journal of Heat and Mass Transfer

Houpei Li

Pega Hrnjak

2023/4/1

Effect of single-phase flow maldistribution on the thermal performance of brazed plate heat exchangers

Applied Thermal Engineering

Wenzhe Li

Pega Hrnjak

2023/1/25

Measurement and modeling of void fraction for developing two-phase flow of R134a in a horizontal tube after an expansion valve

International Journal of Refrigeration

Yufang Yao

Pega Hrnjak

2023/10/1

Developing adiabatic two-phase flow after an expansion valve: the effect of tube diameter and oil

International Journal of Refrigeration

Yufang Yao

Pega Hrnjak

2023/5/1

Extraction as a Way to Improve the Performance of Microchannel Condensers Using R134a

Jun Li

Pega Hrnjak

2022

Heat transfer coefficient and pressure gradient of R32 and R1234yf mixtures flow boiling in a microchannel tube

International Communications in Heat and Mass Transfer

Houpei Li

Pega Hrnjak

2022/5/1

Experimentally Validated Correlations for Heat Transfer and Pressure Drop for Single-phase Flow in Frame-and-Plate Heat Exchanger

Abdel Rahman Farraj

Pega Hrnjak

2022

Effect Of Heat Exchanger Size On Subcooling Control In Residential Air Conditioning Systems

Bruno Yuji Kimura de Carvalho

Pega Hrnjak

2022

Experimental Evaluation of Separation Efficiency in the Intermediate Header of a MC Condenser

Jun Li

Pega Hrnjak

2022

Modélisation de la distribution diphasique du frigorigène dans les échangeurs de chaleur à plaques brasées

International Journal of Refrigeration

Wenzhe Li

Pega Hrnjak

2022/4

The Effects of the Orientation of Outdoor Microchannel Heat Exchanger on the Performance of a Transcritical R744 Heat Pump During Frosting and Defrosting

Wenying Zhang

Pega Hrnjak

2022

Heat transfer coefficient, pressure gradient, and flow patterns of R1233zd (E) and R1336mzz (Z) evaporating in a microchannel tube

International Journal of Heat and Mass Transfer

Houpei Li

Pega Hrnjak

2022/1/1

Effect of Tube Size and Oil on Developing Adiabatic Two-phase Flow

Yufang Yao

Pega Hrnjak

2022

Modeling of two-phase refrigerant distribution in brazed plate heat exchangers

International Journal of Refrigeration

Wenzhe Li

Pega Hrnjak

2022/4/1

The role of internal heat exchanger in an R744 vapor compression system in the Air-conditioning mode under various conditions

Vladimir Cernicin

Wenying Zhang

Pega Hrnjak

2022

See List of Professors in Hrnjak University(University of Illinois at Urbana-Champaign)

Co-Authors

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