Publications

Multi-objective pathway selection for sustainable biorefinery process with harvest scheduling under time-varying climate: Techno-economic analysis and life cycle assessment approach
Microalgae are recognized for their rapid growth rate and serve as an efficient biofuel production feedstock to address critical …
SangYoun Kim, Shahzeb Tariq, SungKu Heo, Mohammad Moosazadeh, ChangKyoo Yoo
Posted Nov 1, 2025
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Leveraging Generative AI and Large Language Model for Process Systems Engineering: A State-of-the-Art Review
Process systems engineering (PSE) has long been recognized as a critical discipline in chemical engineering for improving process …
TaeYong Woo, SangYoun Kim, Shahzeb Tariq, SungKu Heo, ChangKyoo Yoo
Posted Jul 26, 2025
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Predictive monitoring of wastewater treatment performance: Seasonal microbial activity and data-informed water quality model
Biological treatment processes in wastewater treatment plants (WWTPs) require effective monitoring systems to rapidly detect process …
HeeJu Song, TaeYong Woo, SangYoun Kim, ChanHyeok Jeong, MinHan Kim, SungKu Heo, ChangKyoo Yoo
Posted May 1, 2025
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Multi-agent reinforcement learning-driven adaptive controller tuning system for autonomous control of wastewater treatment plants: An offline learning approach
An aeration system is vital in wastewater treatment plants because it supplies dissolved oxygen (DO) to microorganisms to treat …
KiJeon Nam, SungKu Heo, ChangKyoo Yoo
Posted Feb 1, 2025
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Membrane-informed multi-mechanistic predictive maintenance for MBR plants: Early determination of membrane cleaning with biologically driven, physically deposited, and chemically induced fouling model
Membrane bioreactors (MBRs) are widely employed in wastewater treatment for their superior performance, though maintaining membrane …
TaeYong Woo, SangYoun Kim, ChanHyeok Jeong, SungKu Heo, ChangKyoo Yoo
Posted Jan 28, 2025
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Real-scale demonstration of digital twins-based aeration control policy optimization in partial nitritation/Anammox process: Policy iterative dynamic programming approach
Partial nitritation (PN) and anaerobic ammonium oxidation (Anammox) process is a promising energy-efficient nitrogen removal method in …
SungKu Heo, Taeseok Oh, TaeYong Woo, SangYoon Kim, Yunkyu Choi, Minseok Park, Jeonghoon Kim, ChangKyoo Yoo
Posted Jan 5, 2025
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Corrigendum to “Explainable AI-driven high-fidelity IAQ prediction (HiFi-IAQ) model for subway stations: Spatiotemporal outdoor air quality interpolation using geographic data”(Building and Environment (2024) 263,(S0360132324007480),(10.1016/j. buildenv. 2024.111906))
The authors regret that they added the second corresponding author to this paper during the paper review process without informing the …
Sang Youn Kim, Shahzeb Tariq, Roberto Chang, Usama Ali, Abdulrahman H Ba-Alawi, Sung Ku Heo, Chang Kyoo Yoo
Posted Jan 1, 2025
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AI-driven ventilation control policy proximal optimization coupled with dynamic-informed real-time model calibration for healthy and sustainable indoor PM2. 5 management
Indoor air quality (IAQ) is an important factor for determining quality of life and urban sustainability. In underground subway …
ChanHyeok Jeong, SungKu Heo, TaeYong Woo, SangYoun Kim, ChangKyoo Yoo
Posted Nov 15, 2024
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XRL-FlexSBR: Multi-agent reinforcement learning-driven flexible SBR control with explainable performance guarantee under diverse influent conditions
The sequencing batch reactor (SBR) process stands out for its small footprint and operational flexibility. However, the SBR process is …
SungKu Heo, KiJeon Nam, SangYoun Kim, ChangKyoo Yoo
Posted Sep 1, 2024
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Green hydrogen vs green ammonia: A hierarchical optimization-based integrated temporal approach for comparative techno-economic analysis of international supply chains
Recent global trends have increasingly focused on sustainable and green energy solutions,transitioning away from fossil fuels. Green …
Sunwoo Kim, Joungho Park, SungKu Heo, Jay H Lee
Posted Aug 1, 2024
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