Results 1 to 10 of about 95,917 (251)

Energy efficiency in steam using industries in Greece

International Journal of Sustainable Energy, 2020
The industry sector in Greece is responsible for one-quarter of the overall total final energy consumption accounting for 3.8 Mtoe in 2015. Since 2007, a 29% decrease is noted due to the financial crisis.
Ifigenia Farrou, Andreas Androutsopoulos, Aristotelis Botzios-Valaskakis, Georges Goumas, Charilaos Andreosatos, Loukas Gavriil, Christoforos Perakis   +6 more
doaj   +1 more source

On the economics of renewable energy sources

Energy Economics, 2013
Abstract With the global expansion of renewable energy (RE) technologies, the provision of optimal RE policy packages becomes an important task. We review pivotal aspects regarding the economics of renewables that are relevant to the design of an optimal RE policy, many of which are to date unresolved.
Edenhofer, O., Hirth, L., Knopf, B., Pahle, M., Schlömer, S., Schmid, E., Ueckerdt, F.   +6 more
openaire   +3 more sources

Computational Study of Ternary Devices: Stable, Low-Cost, and Efficient Planar Perovskite Solar Cells

Nano-Micro Letters, 2018
Although perovskite solar cells with power conversion efficiencies (PCEs) more than 22% have been realized with expensive organic charge-transporting materials, their stability and high cost remain to be addressed.
Sajid Sajid, Ahmed Mourtada Elseman, Jun Ji, Shangyi Dou, Dong Wei, Hao Huang, Peng Cui, Wenkang Xi, Lihua Chu, Yingfeng Li, Bing Jiang, Meicheng Li   +11 more
doaj   +1 more source

Two-Stage Ultraviolet Degradation of Perovskite Solar Cells Induced by the Oxygen Vacancy-Ti4+ States

iScience, 2020
Summary: The failure of perovskite solar cells (PSCs) under ultraviolet (UV) irradiation is a serious barrier of commercial utilization. Here, a two-stage degradation process of TiO2-based PSCs is discovered under continuous UV irradiation in an inert ...
Jun Ji, Xin Liu, Haoran Jiang, Mingjun Duan, Benyu Liu, Hao Huang, Dong Wei, Yingfeng Li, Meicheng Li   +8 more
doaj   +1 more source

Evaluation of the Suitability of a Composite Liner System for Designing a Landfill Bioreactor on Confined Bedrock at Sammanthurai in Sri Lanka

Tropical Agricultural Research, 2011
The development of a low cost and environmentally friendly liner system is essential for countries like Sri Lanka because the high-density polyethylene liner is of high cost and much more prone to toxic conditions and failures.
R Thivyatharsan, HAYR Gunarathna, BFA Basnayake, LW Galagedara, P Kuruparan   +4 more
doaj   +1 more source

Development of a Computational Fluid Dynamics (CFD) Numerical Approach of Thermoelectric Module for Power Generation

Crystals, 2022
The recent innovations in thermoelectric generating materials have led to exceptional technologies that generate power from excess and lost heat. These technologies have proven to be of significant environmental and economic importance, especially with ...
Mohammed A. Qasim, Vladimir I. Velkin, Sergey E. Shcheklein   +2 more
doaj   +1 more source

Open Dump Simulation for Estimation of Pollution Levels in Wet Tropical Climates

Tropical Agricultural Research, 2011
Leachate management is one of the major issues in rehabilitation of present dumpsites. A field scale ‘lysimeter’ study for open dump simulation of municipal solid waste with 940 kg/m3 placement density was carried out to determine decomposition pattern ...
RTK Ariyawansha, BFA Basnayake, KPMN Pathirana, ASH Chandrasena   +3 more
doaj   +1 more source

TiO2 bunchy hierarchical structure with effective enhancement in sodium storage behaviors

Carbon Energy, 2022
Bronze phase TiO2 [TiO2(B)] has great research potential for sodium storage since it has a higher theoretical capacity and ion mobility compared with other phases of TiO2.
Shen Liu, Kai Niu, Shuailin Chen, Xin Sun, Lehao Liu, Bing Jiang, Lihua Chu, Xiaojun Lv, Meicheng Li   +8 more
doaj   +1 more source

Experimental and Implementation of a 15 × 10 TEG Array of a Thermoelectric Power Generation System Using Two-Pass Flow of a Tap Water Pipeline Based on Renewable Energy

Applied Sciences, 2022
At the present time, the entire world is suffering from global climate change due to emissions caused by the combustion of fossil fuels. Thus, it is necessary to look for alternative power sources to generate clean electrical energy.
Mohammed A. Qasim, Vladimir I. Velkin, Sergey E. Shcheklein   +2 more
doaj   +1 more source

Influence of frequency on the surface discharge characteristics of PEEK under positive repetitive square voltage

High Voltage, 2020
In this study, the surface discharge current pulses of polyetheretherketone (PEEK) material under positive repetitive square voltage in a nitrogen atmosphere are measured.
Zhuodong Yang, Xuebao Li, Xiangrui Meng, Xiangrui Meng, Zhibin Zhao, Pengyu Fu, Bin Zhai, Bin Zhai, Xiang Cui   +8 more
doaj   +1 more source