Predrag Stojan Hrnjak

What is he best known for?

The fields of study he is best known for:

• Mechanical engineering
• Electrical engineering
• Heat exchanger

Predrag Stojan Hrnjak mainly focuses on Pressure drop, Microchannel, Refrigerant, Heat exchanger and Two-phase flow. His Pressure drop study combines topics in areas such as Boiling, Heat transfer coefficient, Heat transfer and Evaporator. Predrag Stojan Hrnjak interconnects Heat pump, Mass flow rate and Micro heat exchanger in the investigation of issues within Microchannel.

His Micro heat exchanger research is multidisciplinary, incorporating elements of Plate fin heat exchanger and Shell and tube heat exchanger. His Refrigerant research integrates issues from Refrigeration and Subcooling. In his work, Homogeneity is strongly intertwined with Mass flux, which is a subfield of Two-phase flow.

His most cited work include:

• Frost, defrost, and refrost and its impact on the air-side thermal-hydraulic performance of louvered-fin, flat-tube heat exchangers (99 citations)
• R-744 gas cooler model development and validation (92 citations)
• CO2 and R410A flow boiling heat transfer, pressure drop, and flow pattern at low temperatures in a horizontal smooth tube (80 citations)

What are the main themes of his work throughout his whole career to date?

Predrag Stojan Hrnjak spends much of his time researching Refrigerant, Microchannel, Heat exchanger, Pressure drop and Heat transfer. His work deals with themes such as Lubricant, Condenser, Evaporator and Air conditioning, which intersect with Refrigerant. His Microchannel research incorporates elements of Flow, Two-phase flow, Mass flow rate and Micro heat exchanger.

The concepts of his Micro heat exchanger study are interwoven with issues in Heat pump, Plate fin heat exchanger and Thermography. His research integrates issues of Frost, Metallurgy and Louver in his study of Heat exchanger. His Heat transfer study integrates concerns from other disciplines, such as Condensation and Tube.

He most often published in these fields:

• Refrigerant (49.06%)
• Microchannel (45.28%)
• Heat exchanger (33.96%)

What were the highlights of his more recent work (between 2016-2019)?

• Microchannel (45.28%)
• Flow (18.11%)
• Refrigerant (49.06%)

In recent papers he was focusing on the following fields of study:

Microchannel, Flow, Refrigerant, Gas compressor and Condenser are his primary areas of study. His Microchannel study combines topics from a wide range of disciplines, such as Inlet, Mass flux, Subcooling, Micro heat exchanger and Slug flow. Predrag Stojan Hrnjak works mostly in the field of Flow, limiting it down to concerns involving Leading edge and, occasionally, Automotive air conditioning and Evaporator.

His Refrigerant study deals with the bigger picture of Heat exchanger. His biological study spans a wide range of topics, including Pressure drop, Separation and Heat transfer, Heat flux. His Pressure drop research includes elements of Nuclear engineering and Joule heating.

Between 2016 and 2019, his most popular works were:

• Improvement of condenser performance by phase separation confirmed experimentally and by modeling. (25 citations)
• Improvement of condenser performance by phase separation confirmed experimentally and by modeling. (25 citations)
• Quantification of flow and retention of oil in compressor discharge pipe (22 citations)

In his most recent research, the most cited papers focused on:

• Mechanical engineering
• Electrical engineering
• Composite material

His main research concerns Flow, Condenser, Microchannel, Mass flux and Inlet. Predrag Stojan Hrnjak has included themes like Sampling, Mass flow rate and Petroleum engineering in his Flow study. His biological study deals with issues like Heat transfer, which deal with fields such as Stratified flow, Tube and Condensation.

Microchannel and Refrigerant are frequently intertwined in his study. The various areas that Predrag Stojan Hrnjak examines in his Mass flux study include Pressure gradient, Bubble and Diabatic. The study incorporates disciplines such as Two-phase flow and Micro heat exchanger in addition to Inlet.