Jiansheng Wang's research while affiliated with Tianjin University and other places

... Indeed, the energy storage system (ESS) in HS plays a vital role in decoupling the energy generation from its end use and, therefore, in boosting the deployment of renewable energy. There are various types of ESS, such as electrochemical and battery energy storage systems (BESS), thermal energy storage systems (TESS), flywheel energy storage, compressed air energy storage, pumped hydro storage, and hydrogen storage systems [9,10]. In the case of hydrogen energy storage, the concept of power-to-hydrogen can be developed aiming for sustainable and flexible energy storage in both short-and long-term applications [11]. ...

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Techno-economic feasibility of integrating hybrid-battery hydrogen energy storage in academic buildings

... It examines hybrid nanofluids' fluid flow and thermal performance, revealing that Cu-CuO-water HNFs show the most significant improvement, especially at lower Reynolds numbers [2]. This article presents a multi-objective optimization and prediction approach for wavy microchannel heat sinks, utilizing neural network models with higher accuracy and wider channel width [3]. Proposes a novel optimization approach using machine learning and a surrogate model to optimize spherical dimples in tubes, resulting in increased heat transmission capacity. ...

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Impact of Different Protrusions in Energy Transfer and Fluid Flow Characteristics Using Al₂O₃ Nanofluid in Pipe Flow

... Moreover, the stress is mainly concentrated on the upper surface of grooves and at the edges joining the upper surfaces and side surfaces. This result is similar to the computational results reported by Wang et al. [26]. ...

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Numerical simulation study on the drag reduction characteristics of grooves-microbubbles coupling surfaces

... As a result, when solar energy is integrated into the grid, it is a challenge to immediately provide the power needed to meet customer demand. Increasing storage capacity on the network side employing energy storage technology is an effective way to address these issues [7]. ...

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Off-design performance evaluation of thermally integrated pumped thermal electricity storage systems with solar energy

... They stated that by changing the structure of the fluid in the vicinity of the wall, the velocity slip changes. Yao et al. [4] studied the effect of wall-fluid interaction on the heat transfer behavior of a simple fluid in a slit nanochannel and presented it as an important factor on the rate of heat exchange between the fluid and the wall. They stated that an increase in the strength of fluid-wall interaction causes an increase in fluid order in the vicinity of the walls. ...

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Investigating the Effect of Surface Roughness Size and Shape on the Nanofluid Behavior and Nanoparticles Aggregation in a Square Nanochannel by Molecular Dynamics Simulation

... When using heat pumps to heat buildings, the operation of heat pumps requires a large amount of electricity, which often puts tremendous pressure on the power grid and results in a grid imbalance [8]. Thermal energy storage (TES) is an important technology to improve grid flexibility and renewable energy utilization, it stores electricity in the form of thermal energy in storage tanks during low peak hours and releases the stored heat to users during peak hours, thus reducing peak electricity consumption and balancing grid fluctuations [9]. Considering the operational characteristics of heat pumps and the peak cut effect of TES, coupling a heat pump heating system with a TES system can effectively improve the performance of heat pumps, such as shortening the defrosting time of airsource heat pumps [10], as well as performing power demand response (DR) to achieve real-time interactions with the grid, enhancing grid stability and system economy through demand-side management (DSM) [11], which has good potential for development. ...

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A Review of the Performance Improvement Methods of Phase Change Materials: Application for the Heat Pump Heating System

... Some research on coalition-based cost and profit allocation of mMGs used solely the Shapley value technique, omitting nucleolus [30,31,32,33]. In addition, both existing paired and non-paired mMGs have not taken into account geothermal energy technologies which are excellent support to meet the thermal demand and a great supplement to CHPs [34,35]. In summary, conventional mMG models are flawed in incorporating traditional energy sources with renewables that attempt to reduce emissions while remaining outage-free and capable of allocating optimized cost to further reduction if paired. ...

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Cost-Aware Modeling and Operation of Interconnected Multi-Energy Microgrids Considering Environmental and Resilience Impact

... Perry and Hoffmann 12 indicated that the ejection and sweep events of Reynolds stress are usually accompanied by the equivalent occurrence of wall-normal heat flux. Kong et al., 13 Araya and Castillo, 14 Li et al., 15 and Wang et al. 16 analyzed the instantaneous velocity and temperature fields in the heated turbulent boundary layer, which further confirmed the similarity between the Reynolds stress and the wall-normal heat flux. Abe et al. 17 pointed out that the surface heat-flux fluctuations are similar to the streamwise wall shear-stress fluctuations. ...

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An experimental study on the effects of wall heating on coherent structures in a turbulent boundary layer

... However, the patterns of EKC differ depending on technological conditions, policy differences, and income distribution, Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy which makes it challenging to establish them smoothly. Multi-objective planning models can effectively address the contradictions between environmental and economic objectives, but their practicality is controversial as it can be challenging to achieve the optimality of each objective during the optimization process [35]. Furthermore, computable general equilibrium (CGE) models are frequently used to assess the influence of regional population, economy, and technology on the environment, but their assumptions are more rigorous, making them complex and difficult to grasp [36]. ...

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An Empirical Examination of the Coupling Coordination Development of Energy Environment and Socioeconomic: A Case Study of the Yangtze River Economic Belt in China

... Aerospace aircraft are developing in the direction of high speed and high efficiency, which also brings higher requirements for thermal management technology [61,62]. Porous/lattice structures have started to be applied in the thermal management of aerospace devices, such as regenerative cooling in a rocket/scramjet [12,[63][64][65][66] and cooling of a turbine blade [26,[66][67][68][69][70]. ...

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Progress of Porous/Lattice Structures Applied in Thermal Management Technology of Aerospace Applications