Showing papers in "Energy Conversion and Management in 2012"

TL;DR: A comparative review of the current technological methods so far used to produce biodiesel has been investigated in this article, where four primary approaches to make biodiesel are direct use and blending of vegetable oils, micro-emulsions, thermal cracking (pyrolysis) and transesterification.

TL;DR: Simulation results obtained from the proposed GSA approach indicate that GSA provides effective and robust high-quality solution for the OPF problem.

TL;DR: In this paper, a battery model with enough precision and suitable complexity is presented, where the model equations are built and the model parameters are identified with an online parameter identification method, and an evaluation is performed on the seven battery models by an experiment approach from the aspects of the estimation accuracy of the terminal voltages.

TL;DR: In this paper, the authors developed a mathematical model aimed at the design of a model-based feedback control strategy, which analytically characterises the aggregate power response of a population of ACs to a simultaneous step change in temperature set points.

TL;DR: In this paper, the authors presented a study of the economic and environmental balances for electric vehicles (EVs) versus internal combustion engine vehicles (ICEV) based on the Well-to-Wheel (WTW) methodology, a specific type of Life Cycle Assessment (LCA).

TL;DR: In this paper, a trigeneration system consisting of a gas turbine cycle, an organic Rankine cycle (ORC), a single-effect absorption chiller and a domestic water heater is reported.

TL;DR: In this paper, a single-cylinder direct injection (DI) diesel engine has been properly modified to run on dual-fuel mode with natural gas as a main fuel and diesel fuel as a pilot, with the ability to employ variable amounts of EGR.

TL;DR: In this paper, the authors present a review of existing life-cycle inventory (LCI) results for cradle-to-gate (ctg) environmental assessments of lead-acid, nickel-cadmium (NiCd), nickel-metal hydride (NiMH), sodium-sulfur (Na/S), and lithium-ion (Li-ion) batteries.

TL;DR: In this paper, a new sort of nanofluid phase change materials (PCMs) is developed by suspending a small amount of TiO2 nanoparticles in saturated BaCl2 aqueous solution.

TL;DR: According to obtained results, relative estimation errors of the HAPE model are the lowest of them and quadratic form (HAPEQ) provides better-fit solutions due to fluctuations of the socio-economic indicators.

TL;DR: In this article, analytical pyrolysis-gas chromatography/mass spectrometry (PyGC/MS) was applied to achieve fast pyrolysation of poplar wood and on-line analysis of the vapors.

TL;DR: A stochastic fuzzy neural network (SFNN) instead of the traditional neural network that has filtering effect on noisy input to model the battery nonlinear dynamic is proposed to estimate the state of charge (SOC) based on a SFNN model.

TL;DR: In this article, the authors presented a dynamic model able to integrate different renewable energy sources and one storage device to feed a green building for its thermal and electrical energy needs in a sustainable way.

TL;DR: In this paper, the effect of blanching and drying temperature (50, 60 and 70°C) on drying kinetics and rehydration ratio of persimmons under hot-air drying was investigated.

TL;DR: The Multi-purpose Hybrid Research Reactor for High-tech Applications (myRRHA) as discussed by the authors is a flexible experimental Accelerator-Driven System (ADS) currently under development at SCK⋅CEN and will replace the MTR BR2.

TL;DR: In this article, the progress of these researches is introduced, and some novel concepts are proposed for heat and moisture transfer analysis, some novel exchanger structures are constructed and the heat and mass transport phenomena are investigated.

TL;DR: In this paper, the authors compared three different topologies that are used to control a hybrid energy storage system (HESS) formed by a SuperCapacitor (SC) bank and a Vanadium Redox Battery (VRB).

TL;DR: In this article, the authors proposed a new formulation for the optimum distributed generator (DG) placement problem which considers a hybrid combination of technical factors, like minimization of the line loss, reduction in the voltage sag problem, etc., and economical factors, such as installation and maintenance cost of the DGs.

TL;DR: In this article, an effective and reliable algorithm based on Shuffle Frog Leaping Algorithm (SFLA) and Simulated Annealing (SA) is proposed for solving the optimal power flow (OPF) problem with non-smooth and non-convex generator fuel cost characteristics.

TL;DR: In this paper, a comprehensive thermodynamic modeling of a dual pressure combined cycle power plant is modeled, and a multi-objective optimization of this cycle is carried out using a computer simulation code written by using the genetic algorithm approach.

TL;DR: In this article, two brown coals from China were dewatered under hydrothermal dewatering (HTD) conditions at 250-320°C for 1h in a 2L autoclave.

TL;DR: In this paper, a solar heating and cooling (SHC) system with photovoltaic/thermal (PVT) collectors operating up to 80°C is considered for a university building located in Naples (Italy).

TL;DR: In this article, the experimental results of the PEM fuel cell with metal foam as flow distributor were reported and compared with the conventional PEM unit cell with flow channel plate as a flow distributor.

TL;DR: In this paper, the authors presented a detailed simulation model of the HP-PV/T system and analyzed the annual electrical and thermal behavior of the two systems used in three typical climate areas of China, namely, Hong Kong, Lhasa, and Beijing.

TL;DR: In this article, a fixed bed reactor was used to pyrolysis of tire derived fuel (TDF) at the temperatures of 350, 400, 450, 500, 550 and 600 ˚ c with the heating rates of 5 and 35 ǚ c/min.

TL;DR: In this paper, the authors developed a methodology that integrates both tasks seamlessly and guarantees the accurate computation of the power performance of a WEC installed at a site of interest; it involves a large dataset of deepwater records and the implementation of a high-resolution, nested spectral model, which is used to propagate 95% of the total offshore wave energy to the WEC site.

TL;DR: In this article, the authors compare the energy efficiency and CO 2 emissions of four different range extender engine solutions deployed in the same baseline series hybrid vehicle, under a combination of driving scenarios aiming to be representative of typical driving instead of standard cycles.

TL;DR: In this article, the authors proposed a methodology for energy resource scheduling in smart grids, considering day ahead, hour ahead and five minutes ahead scheduling, taking advantage of the high accuracy of the very short term wind forecasting providing the user with more efficient scheduling solutions.

TL;DR: In this paper, the authors presented the multi-sources energy models and ruled based feedback control algorithm of an energy management system (EMS) for light electric vehicle (LEV), i.e., scooters.

TL;DR: In this article, the formation and dissociation of methane hydrate in sediment in three dimensions was investigated using a middle-scale reactor equipped with 16 thermocouples, and it was found that gas hydrate dissociation occurs throughout the hydrate zone, which controlled by both mass transfer and heat transfer throughout the stages.