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Showing papers in "Energy in 2012"


Journal ArticleDOI
01 Oct 2012-Energy
TL;DR: In this paper, the authors delineated the existing literature to examine the current status of various methods and technologies used for CO2 capture and separation from thermal power plant flue gas, including chemical-looping combustion, integrated gasification combined cycle, enzyme based separation, dual-alkali absorption approach, facilitated transport membrane, hydrate based separations, mixed matrix membrane and, calcium looping.

700 citations


Journal ArticleDOI
01 Jun 2012-Energy
TL;DR: In this article, the authors argue that the long-term relevant systems are those in which such measures are combined with energy conservation and system efficiency improvements, and emphasize the inclusion of flexible CHP production in the electricity balancing and grid stabilisation.

574 citations


Journal ArticleDOI
01 Nov 2012-Energy
TL;DR: A model for computing “the smart city” indices is proposed that could help in policy making process as starting point of discussion between stakeholders, as well as citizens in final decision of adoption measures and best evaluated options.

493 citations


Journal ArticleDOI
01 Jan 2012-Energy
TL;DR: In this article, the performance, emission and combustion characteristics of biodiesel derived from non-edible Jatropha oil in a dual fuel diesel engine with base line results of diesel fuel were compared.

488 citations


Journal ArticleDOI
01 Feb 2012-Energy
TL;DR: In this article, the authors present a review of the impacts that climate change may have throughout the energy chain and identify current knowledge gaps and areas for future research development, concluding that one of the greatest challenges is how to assess impacts which may occur as a consequence of the projected increase in the intensity of extreme weather events.

429 citations


Journal ArticleDOI
01 Jun 2012-Energy
TL;DR: In this paper, an overview of the clustering techniques used to establish suitable customer grouping, included in a general scheme for analysing electrical load pattern data, is provided, illustrated and discussed, providing links to relevant literature references.

414 citations


Journal ArticleDOI
01 Mar 2012-Energy
TL;DR: In this article, the authors present a method to estimate the state-of-charge (SOC) of a lithium-ion battery, based on an online identification of its open-circuit voltage (OCV), according to the battery's intrinsic relationship between the SOC and the OCV for application in electric vehicles.

396 citations


Journal ArticleDOI
01 Mar 2012-Energy
TL;DR: In this article, the authors investigated the impact of energy consumption and CO2 emission on GDP (gross domestic product) growth and the financial development in thirty Sub Saharan African Countries, from the period 1980 to 2008.

385 citations


Journal ArticleDOI
01 May 2012-Energy
TL;DR: In this paper, an ORC (Organic Rankine Cycle) capable of generating electric power using a low-temperature heat source was developed and an experimental study was conducted.

384 citations


Journal ArticleDOI
01 Jun 2012-Energy
TL;DR: In this paper, an STEEP-fuzzy AHP-TOPSIS based framework for evaluation and selection of optimal locations for thermal power plant (TPPs) is proposed, where potential feasible locations are identified based on social, technical, economical, environmental, and political (STEEP) considerations.

340 citations


Journal ArticleDOI
01 Apr 2012-Energy
TL;DR: In this article, the nonlinear grey Bernoulli model (NGBM) is employed to predict the three indicators and proposes a numerical iterative method to optimize the parameter of NGBM.

Journal ArticleDOI
01 May 2012-Energy
TL;DR: A brief overview of the current development status of offshore wind power in different countries and also explore the technical, economic and environmental issues around its development is provided in this paper, where the authors aim to provide a brief overview.

Journal ArticleDOI
01 Jun 2012-Energy
TL;DR: In this article, the impact of climate change on energy use in buildings in different parts of the world was reviewed and potential mitigation and adaptation measures were discussed and further research work suggested.

Journal ArticleDOI
01 Aug 2012-Energy
TL;DR: In this paper, the impacts of TOU tariffs on a dataset of residential users from the Province of Trento in Northern Italy in terms of changes in electricity demand, price savings, peak load shifting and peak electricity demand at sub-station level.

Journal ArticleDOI
01 Mar 2012-Energy
TL;DR: In this article, a comparison of various materials for high temperature thermal energy storage (HTTS) is presented, where the authors highlight the potential for an advanced study of thermo-mechanical properties of metal foams embedded with phase change material.

Journal ArticleDOI
01 Nov 2012-Energy
TL;DR: In this article, the performance of the straight Darrieus turbine (H-rotor) was investigated for 20 different airfoils (Symmetric and Non-symmetric) by two-dimensional Computational Fluid Dynamics in order to maximize output torque coefficient and output power coefficient (efficiency).

Journal ArticleDOI
01 Jul 2012-Energy
TL;DR: In this article, the results of an experimental methane fermentation study on untreated, NaOH and hydrothermal pretreated substrates of wheat straw were presented, which resulted in specific methane and biogas production yields of 78.4% and 188.4%, respectively.

Journal ArticleDOI
01 Feb 2012-Energy
TL;DR: In this article, a theoretical formula is proposed to calculate the optimal evaporation temperature (OET) of subcritical ORC (organic Rankine cycle) based on thermodynamic theory when the net power output is selected as the objective function.

Journal ArticleDOI
01 Aug 2012-Energy
TL;DR: In this paper, a mixed-integer linear programming (MILP) super-structure model for the optimal design of distributed energy generation systems that satisfy the heating and power demand at the level of a small neighborhood is presented.

Journal ArticleDOI
01 Jan 2012-Energy
TL;DR: In this article, the most relevant barriers to energy efficiency that limit a widespread implementation of the Best Available Technologies and Practices (BAT/Ps) through the investigation of 128 non-energy intensive manufacturing Small and Medium-sized Enterprises (SMEs) in Northern Italy.

Journal ArticleDOI
01 Apr 2012-Energy
TL;DR: In this article, the authors presented a working fluid selection and parametric optimization using a multi-objective optimization model by simulated annealing algorithm, which considered the evaporation and condensation pressures, working fluid and cooling water velocities in tubes.

Journal ArticleDOI
01 May 2012-Energy
TL;DR: In this paper, the impact of demand side management strategies in the evolution of the electricity mix of Flores Island in the Azores archipelago was analyzed, where the introduction of more renewable energy sources makes it an interesting case study for testing innovative solutions.

Journal ArticleDOI
01 Aug 2012-Energy
TL;DR: In this article, the effect of using mixtures as working fluids in organic Rankine cycles was examined with a simulation model of the cycle that includes all elements of an actual installation, and several commonly used pure ORC fluids as potential components, discuss a mixture selection method, and suggest optimal concentrations for heat sources at 150°C and 250°C.

Journal ArticleDOI
01 Dec 2012-Energy
TL;DR: In this article, a detailed thermal model of a parabolic trough collector is presented, which takes into account all modes of heat transfer, including convection into the receiver pipe, in the annulus between the receiver and the glass cover, and from the receiver to ambient air; conduction through the metal receiver pipe and glass cover walls; and radiation from the metal receiving surface to the glass surface and the sky respectively.

Journal ArticleDOI
01 Dec 2012-Energy
TL;DR: In this article, the authors investigated the prospects for realization of the 100% renewable energy system in Macedonia by making use of the EnergyPLAN model and analyzed two renewable scenarios designed for the years 2030 and 2050.

Journal ArticleDOI
01 Nov 2012-Energy
TL;DR: In this paper, a case study of the Danish energy system in 2020 with 50% wind power shows that individual heat pumps and heat storages can contribute to the integration of wind power.

Journal ArticleDOI
01 Jun 2012-Energy
TL;DR: In this paper, the authors proposed a generic mixed integer linear programming model to minimize the operating cost of a residential microgrid, where supply and demand of both electrical and thermal energy as decision variables were modeled.

Journal ArticleDOI
01 Jun 2012-Energy
TL;DR: In this article, the authors present a soft-linking methodology that employs detailed simulation outputs from a dedicated power systems model to gain insights and understanding of the generation electricity plant portfolio results for the electricity sector from a separate energy systems model.

Journal ArticleDOI
Hua Tian1, Gequn Shu1, Haiqiao Wei1, Xingyu Liang1, Lina Liu1 
01 Nov 2012-Energy
TL;DR: In this paper, an organic rankine cycle (ORC) system used in the internal combustion engine (ICE) exhaust heat recovery was proposed and techno-economically analyzed based on various working fluids.

Journal ArticleDOI
01 Mar 2012-Energy
TL;DR: In this article, a CFD (Computational Fluid Dynamic) model and VOF (Volume of Fluid) method are used to simulate water droplet movement and slug formation in PEM fuel cell mini-channels.