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G. Venkatarathnam
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Journal Articles

Effect of Heat Exchanger and Capillary Geometry on the Performance of Joule–Thomson Refrigerators Operating With Different Mixtures

Venkatesh Dasari, G. Venkatarathnam
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. September 2024, 16(9): 091008.
Paper No: TSEA-24-1096
https://doi.org/10.1115/1.4065721
Published Online: July 12, 2024
View Article titled, Effect of Heat Exchanger and Capillary Geometry on the Performance of Joule–Thomson Refrigerators Operating With Different Mixtures
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Topics: Cooling, Heat exchangers, Refrigerants, Temperature, Hardware, Geometry
Journal Articles

Theoretical Analysis of Rankine Cycle Operating With Zeotropic Mixtures of Carbon Dioxide and Hydrocarbons

Vineed Narayanan, G. Venkatarathnam
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. June 2022, 144(6): 062103.
Paper No: JERT-21-1416
https://doi.org/10.1115/1.4051898
Published Online: August 11, 2021
View Article titled, Theoretical Analysis of Rankine Cycle Operating With Zeotropic Mixtures of Carbon Dioxide and Hydrocarbons
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Topics: Carbon dioxide, Cycles, Fluids, Heat, Pressure, Rankine cycle, Temperature, Thermal efficiency, Heat exchangers, Optimization
Journal Articles

Occurrence of Dry-Out Phenomenon in an Auto Refrigerant Cascade Refrigerator Operating With Zeotropic Mixtures

H. Gurudath Nayak, G. Venkatarathnam
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. September 2017, 9(3): 031012.
Paper No: TSEA-16-1157
https://doi.org/10.1115/1.4035940
Published Online: April 11, 2017
View Article titled, Occurrence of Dry-Out Phenomenon in an Auto Refrigerant Cascade Refrigerator Operating With Zeotropic Mixtures
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Topics: Cascades (Fluid dynamics), Heat, Heat exchangers, Refrigerants, Stress, Temperature, Compressors, Refrigeration, Low temperature, Pressure
Journal Articles

Comparison of the Straight Adiabatic Capillary Tube Expansion Devices Used in Refrigeration Systems Operating With Refrigerants R134a and R1234yf

S. S. Harish Kruthiventi, G. Venkatarathnam
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. June 2016, 8(2): 021015.
Paper No: TSEA-15-1178
https://doi.org/10.1115/1.4032366
Published Online: February 3, 2016
View Article titled, Comparison of the Straight Adiabatic Capillary Tube Expansion Devices Used in Refrigeration Systems Operating With Refrigerants R134a and R1234yf
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Topics: Flow (Dynamics), Pressure, Refrigerants, Refrigeration, Speed of sound, Temperature, Vapors, Subcooling, Evaporation
Journal Articles

A Review of Refrigeration Methods in the Temperature Range 4–300 K

Vijayaraghavan S. Chakravarthy, Ramesh K. Shah, G. Venkatarathnam
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Review Articles
J. Thermal Sci. Eng. Appl. June 2011, 3(2): 020801.
https://doi.org/10.1115/1.4003701
Published Online: July 13, 2011
View Article titled, A Review of Refrigeration Methods in the Temperature Range 4–300 K
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Topics: Compression, Cycles, Refrigerants, Refrigeration, Temperature, Vapors, Refrigeration cycles
Journal Articles

Erratum: “Experimental Studies on a Heat Pump Operating With R22, R407C and R407A: Comparison from an Exergy Point of View” [ASME J. Energy Res. Technol., 125 , No. 2, pp. 101–112]

B. Rakesh,, G. Venkatarathnam, and, S. Srinivasa Murthy
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Errata
J. Energy Resour. Technol. September 2003, 125(3): 249.
https://doi.org/10.1115/1.1610006
Published Online: August 29, 2003
View Article titled, Erratum: “Experimental Studies on a Heat Pump Operating With R22, R407C and R407A: Comparison from an Exergy Point of View” [ASME J. Energy Res. Technol., 125 , No. 2, pp. 101–112]
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Topics: Exergy, Heat pumps, Condensation, Cooling, Performance evaluation, Refrigeration
Journal Articles

Experimental Studies on a Heat Pump Operating With R22, R407C and R407A: Comparison From an Exergy Point of View

B. Rakhesh, G. Venkatarathnam, S. Srinivasa Murthy
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Technical Papers
J. Energy Resour. Technol. June 2003, 125(2): 101–112.
https://doi.org/10.1115/1.1538631
Published Online: June 4, 2003
View Article titled, Experimental Studies on a Heat Pump Operating With R22, R407C and R407A: Comparison From an Exergy Point of View
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Topics: Exergy, Heat pumps, Refrigerants, Temperature, Compressors, Cooling, Fluids, Evaporation
Journal Articles

Optimization of Matrix Heat Exchanger Geometry

K. Pavan Kumar, G. Venkatarathnam
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. August 2000, 122(3): 579–586.
https://doi.org/10.1115/1.1287588
Published Online: April 17, 2000
View Article titled, Optimization of Matrix Heat Exchanger Geometry
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Topics: Geometry, Heat exchangers, Optimization, Flow (Dynamics), Heat transfer
Journal Articles

Closure to “Discussion of ‘Analysis of Matrix Heat Exchanger Performance’” (1998, ASME J. Heat Transfer, 120, pp. 801–803)

G. Venkatarathnam, S. Sarangi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Discussions
J. Heat Mass Transfer. August 1998, 120(3): 803–806.
https://doi.org/10.1115/1.2824359
Published Online: August 1, 1998
View Article titled, Closure to “Discussion of ‘Analysis of Matrix Heat Exchanger Performance’” (1998, ASME J. Heat Transfer, 120, pp. 801–803)
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Topics: Heat exchangers, Heat transfer
Journal Articles

Analysis of Matrix Heat Exchanger Performance

G. Venkatarathnam, S. Sarangi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. November 1991, 113(4): 830–836.
https://doi.org/10.1115/1.2911210
Published Online: November 1, 1991
View Article titled, Analysis of Matrix Heat Exchanger Performance
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Topics: Heat exchangers