Experimental investigation on thermal performance of phase change material coupled with closed-loop oscillating heat pipe (PCM/CLOHP) used in thermal management

Visualization and comparative investigations of pulsating ferro-fluid heat pipe

Operation analysis, response and performance evaluation of a pulsating heat pipe for low temperature heat recovery

Dual-purpose cooling plate for thermal management of prismatic lithium-ion batteries during normal operation and thermal runaway

A study of the heat transfer performance of a pulsating heat pipe with ethanol-based mixtures

Effect of Filling Ratio on Heat Transfer Characteristics and Performance of a Closed Loop Pulsating Heat Pipe

At present, the lithium-ion battery (LIB) is one of the most popular electrical energy storage technology for different applications such as electric and hybrid vehicles and aircraft. When the battery is retired in most of these applications, it is still suitable to be used for other applications such as stationary wind and solar energy storage prior to recycling. In this paper, the capacity-fade and the useful remaining life of LIBs that are retired from aircraft or vehicle are studied for the application of wind turbine (WT) power generation. The advantage of these LIBs is the very low added cost when applied for a second-use application. In this study, first, a battery energy storage system is designed for a WT and the duty cycle of a retired LIB cell for the second-life usage in this application is obtained. Then, an empirical model is used to estimate the battery degradation rate and its remaining useful second-life. It is assumed that the LIB is degraded to 85% of the nominal capacity in the first-life and it is degraded to 50% by the end of its second-life application. The results show that the investigated LIB will have almost 7 years useful second-life for the WT application. Less than 0.1% of the generated energy by the WTs is also converted to heat in the battery during charge and discharge processes.

Analysis of Second-Life of a Lithium-Ion Battery in an Energy Storage System Connected to a Wind Turbine

Numerical model of carbon chemical vapor deposition at internal surfaces

A multi-distribution lattice Boltzmann Bhatnagar–Gross–Krook (BGK) model with a multiple-grid lattice Boltzmann (MGLB) model is proposed to efficiently simulate natural convection over a wide range of Prandtl numbers. In this method, different grid sizes and time steps for heat transfer and fluid flow equations are chosen. The model is validated against natural convection in a square cavity, since extensive benchmark solutions are available for that problem. The proposed method can resolve the computational difficulty in simulating problems with very different time scales, in particular, when using extremely low or high Prandtl numbers. The technique can also enhance computational speed and stability while keeping the simplicity of the BGK method. Compared with the conventional lattice Boltzmann method, the simulation time can be reduced up to one-tenth of the time while maintaining the accuracy in an acceptable range. The proposed model can be extended to other lattice Boltzmann collision models and three-dimensional cases, making it a great candidate for large-scale simulations.

A Multiple-Grid Lattice Boltzmann Method for Natural Convection under Low and High Prandtl Numbers

At present, the lithium-ion battery (LIB) is the most important candidate for electrical energy storage for different applications, including electric and hybrid vehicles and aircraft. Although many studies have been done so far to evaluate performance and durability of LIB cells and packs for vehicle application, there is no study for the application of LIBs in electric and hybrid aircraft. In this paper, the cycle life and calendar life of a typical aftermarket LIB are studied through an empirical modeling method. The degradation rate of the battery for a typical light-weight passenger aircraft with a flight range of less than 1000 km is presented. The real duty-cycle of the battery for this aircraft is used for the cycle-life analysis.

Himel Barua

Papers

Effect of Filling Ratio on Heat Transfer Characteristics and Performance of a Closed Loop Pulsating Heat Pipe

Analysis of Second-Life of a Lithium-Ion Battery in an Energy Storage System Connected to a Wind Turbine

Numerical model of carbon chemical vapor deposition at internal surfaces

A Multiple-Grid Lattice Boltzmann Method for Natural Convection under Low and High Prandtl Numbers

Studying the Degradation of Lithium-Ion Batteries Using an Empirical Model for Aircraft Applications