North China Electric Power University

Parameter decoupling analysis and equipment-constrained multi-objective optimization of electrochemical–thermodynamic synergy for a SOFC–semi-closed CO2 Brayton cycle hybrid system

To achieve efficient near–zero–carbon power generation, this study focuses on a hybrid system integrating a solid oxide fuel cell (SOFC) with a semi–closed CO 2 Brayton cycle. This configuration offers both high efficiency and inherent CO 2 capture, yet supercritical operation is...

Strengthening the BZCYYb electrolyte/cathode interface for protonic ceramic fuel cells via Ni doping and in situ exsolution

A reliable electrolyte/electrode interface is crucial to the performance of protonic ceramic fuel cells (PCFCs), yet the poor sinterability of proton-conducting electrolytes and their limited interfacial bonding with cathodes remain challenging. This study proposes a synergistic...

Yaw-Control Optimization for Floating Wind Farms Considering Platform Repositioning

Wake losses constrain power capture in deep-offshore floating wind farms. Unlike fixed-bottom turbines, yaw control in floating turbines changes both wake propagation and aerodynamic thrust; the resulting platform repositioning further alters wake overlap. To investigate the coup...

A High‐Performance Dibenzothiophene‐Terminated Self‐Assembled Hole Transport Monolayer for Perovskite Solar Cells

ABSTRACT Self‐assembled hole transport monolayers (SAMs) have become indispensable components of high‐performance inverted perovskite solar cells (PSCs). SAMs not only govern the interfacial hole extraction kinetics but also influence the crystallization quality of the overlying...

Unraveling the mechanism of programmable heating and quenching in enhancing tar yield from PVC pyrolysis: a ReaxFF MD study

The conventional continuous heating (CCH) method for recovering polyvinyl chloride (PVC) has limitations that result in a low tar yield. The programmable heating and quenching (PHQ) method can increase the tar yield of PVC, but the underlying mechanism was still unclear. In this...

Direct Silicon/Perovskite Heterojunction Solar Cells Enabled by Interfacial Energetics and Charge-Selective Contact Engineering

Abstract Single-junction crystalline silicon (Si) and perovskite solar cells are approaching their fundamental efficiency limits, while the prevailing Si/perovskite tandem architecture requires complex sub-cell interconnection and current matching. Here, we developed a Si/perovsk...

Modeling and quantification of beam steering uncertainties in high-pressure laser absorption spectroscopy of non-uniform physical fields

Beam steering induced by refractive index gradients poses a significant challenge for laser absorption spectroscopy in high-pressure, non-uniform combustion environments. This work establishes a physics-based framework to model and quantify beam steering effects on path-integrate...

La-induced stabilization of Fe-Ni active phases in NiFe2O4 via in situ LaFeO3 formation for efficient CO2 hydrogenation to CO

Catalytic hydrogenation of CO 2 to CO via the reverse water-gas shift (RWGS) reaction provides an attractive route for renewable hydrogen utilization and carbon recycling. NiFe 2 O 4 spinels are promising RWGS catalysts owing to abundant oxygen vacancies and excellent CO 2 activa...

A 3D Metal–Organic Framework Protective Layer with Size-Selective Channels and Zincophilic Sites for Highly Stable Zinc Metal Anodes

Aqueous zinc-ion batteries possess intrinsic operational safety, low cost and scalable application potential, making them promising candidates for large-scale energy storage. However, Zn metal anodes still suffer from severe dendrite proliferation, hydrogen evolution, interfacial...

Offshore wind power forecasting based on phase-space guided representation and regime-adaptive differential attention mechanism

Offshore wind power forecasting is challenged by nonlinear dynamic evolution, multi-scale atmospheric fluctuations, and redundant environmental disturbances under complex marine conditions. This paper develops a phase-space guided forecasting model with a regime-adaptive differen...

Dual-branch network for threat analysis of external-force hazards on power transmission lines

External-force hazards have become a major cause of faults in overhead transmission lines. Existing studies focus on hazard detection, but do not localize the transmission-line safety region or analyze whether a detected target is threatening the line. To address this issue, we p...

Optimization and analysis of phase-locked loop for grid-following inverters with weak grid connection

Purpose This study aims to analyze and enhance the stability of three-phase grid-connected inverters in weak grid environments, with a particular focus on the negative impact of the phase-locked loop (PLL) on system stability. Design/methodology/approach A small-signal transfer f...

A Doppler-Aware RSRP Input Calibration Method for Handover in High-Speed Railway 5G-R

Short-term fluctuations in reference signal received power (RSRP) can repeatedly reset the time-to-trigger (TTT) timer and spatially disperse Event A3 handover triggers in high-speed railway 5G-R systems. This study presents a synchronization-aware, physically bounded calibration...

Phase-change heat transfer systems coupled with multi-transducer ultrasonic field: A visual experimental study

Driven by the rapid development of the artificial intelligence and cloud computing, the increasing thermal management demands and the need for energy optimization have become urgent challenges for data centers. Paraffin phase-change heat transfer has emerged as a promising therma...

Multi-objective optimization of integrated energy systems considering diversified hydrogen utilization and carbon capture system under ladder-type carbon trading interacting with green certificate trading

To address low-carbon transition and renewable integration, this study developed an integrated electricity-hydrogen-gas-heat energy system with diversified hydrogen utilization and carbon capture. The system integrated electrolysis, fuel cells, methanation with carbon capture, an...

Lithium‐Ion Battery Storage: A Cross‐Scale Review From the Energy Storage Ecosystem to Application‐Specific Management

ABSTRACT Energy storage underpins the decarbonization of power systems, and lithium‐ion batteries (LIBs) have become the dominant platform for modular, fast‐response deployment in both stationary and mobile applications. However, LIB research is frequently examined in isolation f...

Ultra-Short-Term Distributed PV Power Forecasting Based on Correlation Sparse Modeling and Uncertainty Pattern Forecasting

Accurate ultra-short-term power interval forecasting for distributed photovoltaic (DPV) systems is crucial for the intra-day operation of distribution networks. However, existing studies still face two major limitations. First, most spatiotemporal forecasting methods are develope...

The impact of institutional pressures on carbon mitigating behaviors of contractors: moderating roles of environmental leadership and cost perception

Purpose In the face of the escalating global climate change crisis, the construction industry, as an important contributor to carbon emissions, must proactively assume the responsibility of carbon mitigation. This paper aims to examine the influence of institutional pressures on...

Nuclear and Renewable Energy Transitions for Global Sustainability: Exploring the Interactions of Tourism Development and Economic Drivers

ABSTRACT In light of exacerbating climate change issues, recent environmental policy reforms have attempted to balance economic growth and environmental conservation to foster a sustainable development transition. To further debate the scope of decarbonization policies, this stud...

Molten-salt-mediated synthesis: Engineering Fe single-atom sites on HKUST-1-derived carbon for efficient oxygen reduction reaction

Nitrogen-doped carbon materials derived from metal–organic frameworks (MOFs) are promising catalysts for the oxygen reduction (ORR), yet their performance still lags behind Pt-based catalysts. While Fe–N–C materials are among the most promising alternatives, achieving high-densit...