Published at Applied Energy – A review of the performance and application of molten salt-based phase change materials in sustainable thermal energy storage at medium and high temperatures

Abstract: Growing energy demand and environmental pollution issues are placing greater demands on sustainable thermal energy storage. Research indicates that molten salt phase change materials (MSPCMs) represent a promising alternative for thermal energy storage (TES), effectively addressing the energy supply-demand imbalance. These salts typically have a range of excellent properties, such as high energy storage …

Published at Chemical Engineering Journal – Thermodynamic modeling of countercurrent chemical looping reverse water gas shift process for redox material screening

Abstract: The reverse water gas shift (RWGS) reaction is a key pathway for CO2 utilization, particularly within Power-to-X process chains aimed at sustainable fuel and chemical production. Countercurrent chemical looping (CL-RWGS) using non-stoichiometric oxides can overcome equilibrium limitations of conventional RWGS reactors, enabling significantly higher CO2 conversions. However, modeling the limiting performance of such systems …

Published at Applied Thermal Engineering – A technology review of pumped thermal energy storage based on CO2 cycles

Abstract: Pumped thermal energy storage (PTES) is an innovative physical energy storage technology that converts surplus electricity into heat, stores it in thermal reservoirs, and reconverts it into electricity when needed. When CO2 is employed as the working fluid, PTES can offer advantages of potentially high round-trip efficiency, compact system equipment, and good operational flexibility …

Wei Wu’s startup Heatrix wins the 17th IDEE Förderpreis

Dr.-Ing. Wei Wu (born 1983) is the founder and managing director of Heatrix, a Bremen-based startup that she co-established with her co-founder, Dr.-Ing. Stefan Gasow-Lux. With a degree in aerospace engineering from the University of Stuttgart and a doctorate in energy technology from RWTH Aachen, she contributes extensive technical expertise. During her doctoral research at …

Published at Solar Energy – srlife: A software tool for estimating the life of high temperature concentrating solar receivers. Part II – Ceramic receivers

Abstract: As Concentrating Solar Power (CSP) technologies aim for higher operating temperatures to enhance efficiency and meet industrial process heat demands, high-temperature metallic materials, including nickel-based superalloys, face challenges in maintaining structural integrity. Advanced ceramics offer a promising alternative due to their superior high-temperature strength. However, accurately assessing the performance of ceramic components requires a …

Published at Applied Thermal Engineering – On the improvement of the thermal performance of longitudinally finned parabolic trough solar receivers

Abstract: The parabolic trough collector remains one of the most extensively deployed technologies for concentrating solar power and heating. Enhancing the thermal performance of the receiver tube, which is its core component, is critical for improving overall system efficiency. Longitudinal fins represent a simple and cost-effective method for augmenting heat transfer within the receiver. However, …

Published at Applied Thermal Engineering – Performance evaluation of an oval solar receiver for safe and efficient ultra-high temperature operation

Abstract: Improving the operating temperature of the solar receiver can enhance power cycle efficiency in solar power towers by raising the turbine-inlet temperature. However, maintaining high efficiency and safety at ultra-high temperatures (>1573 K) remains challenging. Therefore, this work focuses on the design and optimization of an oval tungsten solar receiver. Firstly, the receiver performance under …

Researchers create a digital twin to run DAWN, Synhelion’s solar fuels plant

IMAGE °C Falko Scheider Schematic overview of the surrogate model architecture Collaborating with Synhelion engineers, a solar research team at the Solar-Institute Jülich (SIJ) of FH Aachen presented two papers at SolarPACES 2025 assessing the accuracy and reliability of dynamic process models for a solar fuel production system. They used operating data from Synhelion’s DAWN …

Xinjiang’s Fresnel CSP starts operation pioneering multiple O&M automation innovations

100 MW Fresnel CSP project in Hami, Xingjiang pioneers multiple operating automation breakthroughs Source: China Solar Thermal Alliance On September 18, the 100 MW CSP plant of the CTGR Hami 1 GW “CSP + PV” integrated demonstration project—general-contracted by Northwest Electric Power Design Institute Co., LTD, of China Power Engineering Consulting Group(CPECC Northwest), the executive …