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Journal Articles

Performance Analysis of Evaporation and Heat Wheel-Based Building Air Conditioning Systems

Gaurav Singh, Ranjan Das
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. March 2023, 145(3): 032101.
Paper No: JERT-22-1307
DOI: https://doi.org/10.1115/1.4055203
Published Online: September 1, 2022
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Topics: Air conditioning, Evaporation, Heat, Solar collectors, Temperature, Wheels, Design, Thermal energy, Simulation, Energy consumption
Journal Articles

Wall Energy Loss and Entropy Generation in Solar Ponds Using One-Dimensional and Two-Dimensional Transient Analyses

Sunirmit Verma, Ranjan Das
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. October 2022, 144(10): 101305.
Paper No: JERT-21-1860
DOI: https://doi.org/10.1115/1.4054017
Published Online: March 22, 2022
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Topics: Energy dissipation, Entropy, Insulation, Solar energy, Temperature, Heat transfer, Transient analysis, Transients (Dynamics), Temperature gradient
Journal Articles

Evaluation of the Effectiveness of Base Insulation on the Productivity of a Packed Bed Solar Air Heater

Sunirmit Verma, Ranjan Das
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. June 2022, 14(6): 061015.
Paper No: TSEA-21-1680
DOI: https://doi.org/10.1115/1.4053742
Published Online: March 10, 2022
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Topics: Insulation, Solar energy, Steady state, Transients (Dynamics), Temperature
Proceedings Papers

Energy Saving Assessment of Triple-Hybrid Vapor Absorption Building Cooling System Under Hot-Dry Climate

Gaurav Singh, Ranjan Das
Proc. ASME. POWER2021, ASME 2021 Power Conference, V001T09A005, July 20–22, 2021
Paper No: POWER2021-64470
DOI: https://doi.org/10.1115/POWER2021-64470
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Topics: Absorption, Air conditioning, Biomass, Climate, Cooling systems, Solar energy, Vapors
Proceedings Papers

An Inverse Method for Parameter Retrieval in Solar Thermal Collector With a Single Glass Cover

Ranjan Das
Proc. ASME. POWER2021, ASME 2021 Power Conference, V001T09A008, July 20–22, 2021
Paper No: POWER2021-65601
DOI: https://doi.org/10.1115/POWER2021-65601
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Topics: Glass, Heat transfer, Optimization, Solar collectors
Journal Articles

Experimental Study on a New Small-Scale Absorption System: Response Surface and Inverse Analyses

Gaurav Singh, Ranjan Das
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. September 2021, 143(9): 092103.
Paper No: JERT-20-2040
DOI: https://doi.org/10.1115/1.4050782
Published Online: May 3, 2021
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Topics: Absorption, Condensers (steam plant), Generators, Heat transfer coefficients, Response surface methodology, Temperature, Water, Heat, Design, Hot water
Journal Articles

Use of Cuckoo Search Algorithm for Performance Evaluation of Split Elliptic Shaped Fins for Enhanced Rate of Heat Transfer

Alok Ranjan, Ranjan Das, Sagnik Pal, Arindam Majumder, Madhujit Deb
Journal: Journal of Heat Transfer
Article Type: Research-Article
J. Heat Transfer. June 2021, 143(6): 063301.
Paper No: HT-20-1209
DOI: https://doi.org/10.1115/1.4050715
Published Online: April 21, 2021
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Topics: Algorithms, Fins, Flow (Dynamics), Geometry, Heat transfer, Optimization, Performance evaluation, Shapes, Fluids
Includes: Supplementary data
Journal Articles

New Forward and Inverse Solutions for Wet Fins Generalized Profiles With All Nonlinear Phenomena

Ranjan Das, Balaram Kundu
Journal: Journal of Heat Transfer
Article Type: Research-Article
J. Heat Transfer. February 2021, 143(2): 021401.
Paper No: HT-20-1443
DOI: https://doi.org/10.1115/1.4048923
Published Online: November 19, 2020
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Topics: Fins, Heat, Heat transfer, Optimization, Temperature, Thermal conductivity, Heat transfer coefficients, Geometry, Design, Shapes
Journal Articles

Improved Exergy Evaluation of Ammonia-Water Absorption Refrigeration System Using Inverse Method

Adityabir Singh, Ranjan Das
Journal: Journal of Energy Resources Technology
Article Type: Technical Briefs
J. Energy Resour. Technol. April 2021, 143(4): 044501.
Paper No: JERT-20-1529
DOI: https://doi.org/10.1115/1.4048246
Published Online: September 22, 2020
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Topics: Exergy, Water, Algorithms, Absorption, Optimization, Flow (Dynamics), Refrigeration
Journal Articles

Experimental Analysis of a Novel Solar Pond Driven Thermoelectric Energy System

Rohtash Goswami, Ranjan Das
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. December 2020, 142(12): 121302.
Paper No: JERT-19-1897
DOI: https://doi.org/10.1115/1.4047324
Published Online: June 12, 2020
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Topics: Heat, Solar energy, Temperature, Solar radiation, Electric power generation
Journal Articles

Revisiting Gradient Layer Heat Extraction in Solar Ponds Through a Realistic Approach

Sunirmit Verma, Ranjan Das
Journal: Journal of Solar Energy Engineering
Article Type: Research Papers
J. Sol. Energy Eng. August 2020, 142(4): 041009.
Paper No: SOL-19-1339
DOI: https://doi.org/10.1115/1.4046149
Published Online: February 10, 2020
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Topics: Exergy, Heat, Heat transfer coefficients, Solar energy, Stability, Storage, Temperature, Temperature profiles
Proceedings Papers

Optimization of Aerodynamic Parameters of an Elliptical-Bladed Savonius Wind Rotor Using Multi-Objective Genetic Algorithms

Nur Alom, Ranjan Das, Ujjwal K. Saha
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T06A003, December 5–6, 2019
Paper No: GTINDIA2019-2346
DOI: https://doi.org/10.1115/GTINDIA2019-2346
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Topics: Blades, Drag (Fluid dynamics), Genetic algorithms, Optimization, Rotors, Savonius wind turbines, Wind
Proceedings Papers

A Differential Evolution-Based Inverse Method to Optimize Blade Configurations in Elliptical-Bladed Savonius Wind Turbines

Nur Alom, Ranjan Das, Ujjwal K. Saha
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T06A004, December 5–6, 2019
Paper No: GTINDIA2019-2352
DOI: https://doi.org/10.1115/GTINDIA2019-2352
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Topics: Blades, Savonius wind turbines, Torque
Proceedings Papers

Inverse Optimization of Design Parameters in a Hybrid Solar Pond System With External Heat Addition

Abhishek Kumar, Ranjan Das
Proc. ASME. IMECE2019, Volume 6: Energy, V006T06A105, November 11–14, 2019
Paper No: IMECE2019-11117
DOI: https://doi.org/10.1115/IMECE2019-11117
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Topics: Design, Heat, Optimization, Solar energy
Journal Articles

Concept of Triple Heat Exchanger-Assisted Solar Pond Through an Improved Analytical Model

Sunirmit Verma, Ranjan Das
Journal: Journal of Solar Energy Engineering
Article Type: Research-Article
J. Sol. Energy Eng. October 2019, 141(5): 051003.
Paper No: SOL-18-1449
DOI: https://doi.org/10.1115/1.4043127
Published Online: March 27, 2019
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Topics: Flow (Dynamics), Heat, Solar energy, Heat exchangers, Thermal energy, Temperature profiles, Temperature
Journal Articles

A Novel Design of Triple-Hybrid Absorption Radiant Building Cooling System With Desiccant Dehumidification

Gaurav Singh, Ranjan Das
Journal: Journal of Energy Resources Technology
Article Type: Research-Article
J. Energy Resour. Technol. July 2019, 141(7): 072002.
Paper No: JERT-18-1791
DOI: https://doi.org/10.1115/1.4042239
Published Online: January 9, 2019
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Topics: Absorption, Compression, Cooling systems, Vapors, Cooling, Solar energy, Energy consumption, Biogas, Water, Design
Journal Articles

Energy Saving Potential of a Combined Solar and Natural Gas-Assisted Vapor Absorption Building Cooling System

Gaurav Singh, Ranjan Das
Journal: Journal of Solar Energy Engineering
Article Type: Research-Article
J. Sol. Energy Eng. February 2019, 141(1): 011016.
Paper No: SOL-18-1192
DOI: https://doi.org/10.1115/1.4041104
Published Online: September 14, 2018
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Topics: Absorption, Compression, Cooling, Cooling systems, Generators, Heat, Heating, Simulation, Solar collectors, Solar energy
Journal Articles

Analytical Model of Progression of Flank Wear Land Width in Drilling

Ranjan Das, Suhas S. Joshi, Harish C. Barshilia
Journal: Journal of Tribology
Article Type: Research-Article
J. Tribol. January 2019, 141(1): 011601.
Paper No: TRIB-17-1182
DOI: https://doi.org/10.1115/1.4040511
Published Online: July 18, 2018
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Topics: Cutting, Drilling, Wear, Friction, Shear (Mechanics), Drills (Tools), Abrasion
Proceedings Papers

Identification of Geographical Locations to Operate Savonius Wind Turbine Rotor for Meeting a Desired Performance

Sukanta Roy, Ranjan Das, Ujjwal K. Saha
Proc. ASME. GTINDIA2017, Volume 2: Structures and Dynamics; Renewable Energy (Solar, Wind); Inlets and Exhausts; Emerging Technologies (Hybrid Electric Propulsion, UAV, ...); GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T06A003, December 7–8, 2017
Paper No: GTINDIA2017-4566
DOI: https://doi.org/10.1115/GTINDIA2017-4566
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Topics: Rotors, Savonius wind turbines, Torque, Wind velocity, Blades, Errors, Geometry, Inverse problems, Optimization algorithms, Turbines
Journal Articles

Improved Quantification of Exergy Destruction in Mechanical Cooling Tower Considering All Tower Inlet Parameters

Kuljeet Singh, Ranjan Das
Journal: Journal of Heat Transfer
Article Type: Research-Article
J. Heat Transfer. May 2018, 140(5): 052002.
Paper No: HT-17-1213
DOI: https://doi.org/10.1115/1.4038479
Published Online: January 23, 2018
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Topics: Cooling towers, Exergy, Flow (Dynamics), Temperature, Water, Water temperature, Exergy analysis