Selected Publications

Journal Detail: Thermal Science and Engineering Progress, Q1, Impact Factor: 5.1, Cite Score: 7.2

Author: Md Walid Faruque, Yasin Khan, Mahdi Hafiz Nabil, M Monjurul Ehsan 

DOI: https://doi.org/10.1016/j.tsep.2023.101745

Paper Summary:

• Proposed a novel cascade refrigeration system by integrating Ejector Expansion Vapor Compression Cycle (EEVCC) and Vapor Injection Cycle with Flash Tank (VICFT) via a cascade heat exchanger for moderately low-temperature applications.

• Conducted a comprehensive energy and exergy analysis, evaluating the effect of evaporator temperature, ejector pressure drop, and lower circuit condensation temperature.

• Found the system to be highly sensitive to pressure and condensation variations, requiring optimal design parameter tuning for best performance.

• Demonstrated 8.571% COP and 7.241% exergy efficiency improvement over conventional cascade systems at –60 °C; R170–R601 refrigerant pair provided best environmental and thermodynamic performance.

My Role: Conceptualization, methodology, formal analysis, and writing – original draft.

Journal Detail: Results in Engineering, Q1, Impact Factor: 6.0, Cite Score: 5.8

Author: Md Walid Faruque, Yasin Khan, Mahdi Hafiz Nabil, M Monjurul Ehsan 

DOI: https://doi.org/10.1016/j.rineng.2023.101008

Paper Summary

• Proposed a novel compression-absorption cascade system combining a reheater-integrated absorption cycle (HTC) and a flash tank-assisted vapor compression cycle (LTC).

• Investigated system performance using energy and exergy analysis, parametric study, and Genetic Algorithm-based optimization for two refrigerant pairings: R41–LiBr/H₂O and R41–NH₃/H₂O.

• Found that at −35 °C evaporator temperature, the R41–LiBr/H₂O combination achieved 15.39% higher COP and exergetic efficiency, and R41–NH₃/H₂O achieved 18.49% improvement compared to conventional systems.

• Comparative results indicate R41–LiBr/H₂O as the superior refrigerant combination for optimized performance and thermal efficiency.

My Role: Conceptualization, methodology, formal analysis, and writing – original draft.

Journal Detail: Energy Conversion and Management, Q1, IF: 9.9, Cite Score: 19

Author: Mahdi Hafiz Nabil,, Yasin Khan, Md Walid Faruque, M Monjurul Ehsan 

DOI: https://doi.org/10.1016/j.enconman.2023.117630

Paper Summary

• Proposed a novel Advanced Triple Cascade Refrigeration System (ATCRS) for Ultra-Low Temperature (ULT) applications, integrating a flash tank and suction line heat exchanger to boost energy and economic performance.

• Utilized m-Xylene, Toluene, and 1-Butene as refrigerants in the high, medium, and low-temperature stages, respectively.

• Achieved 22% higher COP and 19.33% compressor work reduction 

• Exergy analysis showed 19.35% improvement in exergy efficiency; economic study emphasized the impact of condenser temperature optimization on operational cost reduction.

My Role: Conceptualization, methodology, formal analysis, and writing – original draft.

Journal Detail: Energy and AI, Q1, Impact Factor: 9.6, Cite Score: 16.5

Author: Asif Iqbal Turja, Md Mahmudul Hasan, M Monjurul Ehsan, Yasin Khan 

DOI: https://doi.org/10.1016/j.egyai.2023.100327

Paper Summary

• Investigated advanced supercritical CO₂ (sCO₂) Brayton cycles (Recompression, Partial Cooling, Main Compression Intercooling) for Concentrated Solar Power (CSP) applications through energy–exergy analysis and multi-objective optimization.

• Integrated machine learning models (ANN, RF, XGBoost, LightGBM, etc.) with Genetic Algorithm and TOPSIS to optimize system performance considering climatic variations.

• Achieved 1.68% and 7.87% performance enhancement over conventional recompression and partial cooling cycles, respectively.

My Role: Conceptualization, methodology, Supervision

Journal Detail: Energy Conversion and Management: X, Q1, Impact Factor: 7.1, Cite Score: 8.8 

Author: Sifat Abdul Bari, Mohtasim Fuad, Kazi Fahad Labib, M Monjurul Ehsan, Yasin Khan, Muhammad Mahmood Hasan 

DOI: https://doi.org/10.1016/j.ecmx.2024.100550

Paper Summary

• Proposed a solar-assisted repowering strategy for a 200 MW regenerative reheating Rankine cycle thermal power plant to improve energy–exergy efficiency and reduce fuel usage.

• Analyzed 14 repowering cases with various combinations of single, double, and triple Feed Water Heater (FWH) replacements using solar-powered heat exchangers.

• Parametric studies performed on the most promising configurations using EES-based modeling under varying steam and condenser pressure conditions.

• In the best scenario (Case 12), achieved net power output of 225 MW, with energy efficiency of 39.73% and exergy efficiency of 43.99%, offering a pathway for sustainable and optimized power plant performance.

My Role: Conceptualization, methodology, Supervision

Journal Detail: Energy Reports, Q2, Impact Factor: 4.7, Cite Score: 8.2

Author: Fairooz Nanzeeba, Tajwar A Baigh, Afrida Kabir, Yasin Khan, M. Monjurul Ehsan  
DOI: https://doi.org/10.1016/j.egyr.2024.07.059

Paper Summary

• Proposed a hybrid Marine Energy Recovery System (MERS) combining a supercritical CO₂ Brayton power cycle and a flash-tank-enhanced transcritical CO₂ refrigeration cycle for simultaneous power generation and cooling onboard ships.

• Integrated ORC, shared recuperator, and gas cooler to improve system synergy and performance under marine waste heat recovery conditions.

• Achieved energy and exergy efficiencies of 54.62% and 54.90%, with 717.55 kW power output increase and 515.7 kW additional cooling over the baseline.

• Multi-objective optimization using ANN + GA revealed an optimal condition yielding 74.95% energy efficiency and 6890.55 kW net power output, highlighting the system’s potential for sustainable maritime applications.

My Role : Conceptualization, methodology, Supervision

Journal Detail: Heliyon (CellPress, Elsevier), Q1, Impact Factor: 3.4

Author: Tajwar A Baigh, Mostofa J Saif, Ashraf Mustakim, Fairooz Nanzeeba, Yasin Khan, M. Monjurul Ehsan
DOI: https://doi.org/10.1016/j.heliyon.2024.e35748

Paper Summary

• Proposed an Advanced Cooling and Power with LNG Utilization (ACPLU) system combining transcritical CO₂-LNG cycle, Organic Rankine Cycle (ORC), and Absorption Refrigeration System (ARS) for enhanced second-law efficiency and cold energy recovery.

• Sensitivity analysis was conducted on operating conditions including turbine inlet pressures, heat source temperatures, and pinch point differentials.

• ACPLU achieved a second law efficiency of 27.3% and net power output of 11.76 MW; further improved to 29.06% and 12.27 MW using Cyclopentane as ORC fluid.

• Multi-objective optimization using ANN-GA improved the system to 28.11% efficiency and 14.16 MW net output, with thermo-economic analysis yielding a cost rate of $9.121/GJ.

My Role : Conceptualization, methodology, Supervision

Journal Detail: Energy Conversion and Management, Q1, Impact Factor: 9.9, Cite Score: 19

Author: Sefat Mahmud Siddique, M. Muhtasim Uzzaman, M. Monjurul Ehsan, Yasin Khan  
DOI: https://doi.org/10.1016/j.enconman.2024.119435

Paper Summary

• Investigated four advanced cascaded systems combining Double Effect Absorption Cycles (DEAC) (in Series and Parallel) with ejector-enhanced and ejector-injection-enhanced VCR cycles, using LiBr/H₂O and R41 as working fluids.

• Introduced Refrigerant Heat Exchanger (RHX) and ejector technologies to reduce total input power, increase COP, and improve waste heat utilization.

• Among all configurations, EI-DAC (Parallel) showed the best performance with ~18% COP improvement and ~17.5% higher exergy efficiency compared to conventional series DEAC.

• Highlighted performance sensitivity to evaporator temperature, entrainment ratio, and ejector pressure drop, demonstrating the need for precise control for optimal efficiency.

My Role : Conceptualization, methodology, Analysis,  Supervision

Journal Detail: Cleaner Energy Systems, Q2, Cite Score: 3.1

Author: Md Maruf Ahmed, Salim Sadman Bishal, M Monjurul Ehsan, Yasin Khan
DOI: https://doi.org/10.1016/j.cles.2025.100182

Paper Summary

• Proposed an integrated SMR–MED-TVC system combining Single Mixed Refrigerant (SMR) liquefaction with multi-effect distillation (MED) using a Liquid Vapor Ejector (LVE) to harness waste heat from intercoolers.

• Developed a Python-based simulation code, validated against existing literature, to perform energy and exergy analysis along with extensive parametric studies.

• Key findings show up to 289.90% LNG production increase with higher refrigerant flow rate, but with a 74.22% decrease in distillate output, identifying critical trade-offs.

• Water mass flow rate and inlet temperature were found to significantly affect distillate, brine, and GOR, offering design guidance for sustainable waste heat recovery and clean water generation.

My Role: Conceptualization, methodology, Analysis, Supervision

Journal Detail: Applied Thermal Engineering, Q1, Impact Factor: 6.1, Cite Score: 11.3

Author: Imrul Kayes, Mahdi Hafiz Nabil, M. Monjurul Ehsan, M. Ahsan Habib, Yasin Khan  
DOI: https://doi.org/10.1016/j.applthermaleng.2025.126661

Paper Summary

• Introduced two advanced modifications to the Triple Cascade Refrigeration System (TCRS): Suction Line Heat Exchanger (SLHX-VCR) and Flash Tank (FT-VCR), improving ultra-low temperature system performance.

• Conducted Advanced Exergy Analysis (AEA) and multi-objective optimization using Artificial Neural Networks (ANN) and NSGA-II, selecting the optimal configuration using TOPSIS.

• Achieved COP of 0.7 and Avoidable Exergy Destruction of 6.3 kW, while minimizing Plant Cost Rate ($33,728) and CO₂ emissions (62,119 kg/year) at –105 °C evaporator temperature.

• ANN-based MOO reduced optimization time by ~96% compared to direct numerical methods, and identified key exergy destruction sources to guide future design improvements.

My Role: Conceptualization, methodology, Analysis, Supervision

Journal Detail: Energy Conversion and Management, Q1, Impact Factor: 11.53, Cite Score: 19.1

Author: Azmain Rashid Raiyan, Samiuzzaman, Yasin Khan, M Monjurul Ehsan, Md Rezwanul Karim, Sefat Mahmud Siddique 

DOI: https://doi.org/10.1016/j.enconman.2025.119836

Paper Summary

• Proposed a nuclear-driven hybrid power and cooling system combining a reheat-recompression main compression intercooling sCO₂ Brayton cycle with a double-effect absorption refrigeration cycle for optimal energy utilization.

• Conducted exergoeconomic modeling and parametric analysis, Employed Genetic Algorithm (GA) with multi-objective optimization on EUF, exergy efficiency (ηₑₓ), and unit cost (cp,tot), generating 84 Pareto optimal solutions; LINMAP was used to select the most balanced point.

• At optimal design conditions, the system achieved EUF of 69.12%, exergy efficiency of 77.07%, power output of 400.4 MW, cooling of 116.2 MW, and minimum unit cost of $9.46/GJ, outperforming conventional systems.

My Role: Conceptualization, methodology, Analysis, Supervision