Environmental, social and health benefits of alternative renewable energy sources. Case study for household biogas digesters in rural areas

Pizarro-Loaiza, Carlos Alexander; Antón, Assumpció; Torrellas, M.; Torres–Lozada, Patricia; Palatsí, J.; Blasi, August Bonmatí

doi:10.1016/j.jclepro.2021.126722

Cited by 34 publications

(10 citation statements)

References 32 publications

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“…The development of sustainable energy [1] and the improvement of energy utilization [2] have become important issues related to the industrialization of the world and economic composed of two hard disks faces problems of serious abrasion and short service lifespan, the soft-contact TENG has been introduced. [17] Compared with the conventional sliding friction structure, the soft-contact FR-TENG with higher V OC of up to kilovolts is easy to collect energy, especially low-frequency energy, on account of weak friction resistance.…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of Soft‐Contact Freestanding Rotary Triboelectric Nanogenerator for High‐Output Performance

Chen

Wei

Wang

et al. 2021

Advanced Energy Materials

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As a new energy harvesting invention [4] with great potential application value, [5] triboelectric nanogenerator (TENG) has gradually advanced, [6] whether in theoretical research, structural innovation, or application development, since its discovery in 2012, [7] which has four main applications nowadays: micronanoenergy, [8] self-powered sensor, [9] blue energy, [10] and high-voltage application. [11] Different from the low-voltage characteristic of the electromagnetic generator, TENG can be considered as a current source [12] with high voltage and low current output characteristics. Therefore, the research on the high-voltage application scenarios and mechanism of TENGs is gradually receiving extensive attention from researchers. [13] Lin et al. designed a TENG with a radially distributed disk structure for the first time, which opens up many novel structures and potential applications. [14] Then, a freestanding rotary triboelectric nanogenerator (FR-TENG) with radial arrays of microsized sectors was designed, which achieved multiple charge transfer and generated higher short-circuit current (I SC ). [15] FR-TENG has received widespread attention due to its characteristics of higher open-circuit voltage (V OC ) and shortcircuit current. [16] However, since the conventional FR-TENGThe soft-contact freestanding rotary triboelectric nanogenerator (FR-TENG), with the capabilities of high output performance and excellent efficiency, presents interesting applications in driven nonequilibrium plasma jets, mass spectrometry, electrospinning, and so on. For enhancing the output performance of FR-TENG, detailed and in-depth research focusing on the design method is discussed in this paper, mainly consisting of the following four parts: 1) design reasonable geometric structure, 2) select triboelectric layers, 3) choose a reasonable signal acquisition, and 4) investigate influencing factors. Benefiting from this four-step systematic research, a modified FR-TENG with better output performance is successfully constructed. A corresponding open-circuit voltage density of 1.27 × 10 5 V m −2 is achieved, which is over twofold higher compared to the largest one among the previous similar articles. Therefore, the four-step systematic research is demonstrated to remarkably enhance the output performance of the soft-contact FR-TENG. This work not only presents a modified FR-TENG with ultrahigh voltage density that inhibits bacterial corrosion, enables high-voltage electrostatic dust removal, and enables impressive current cathodic protection of marine pipelines and urban buried pipelines, but also can be regarded as guidance for the design of soft-contact FR-TENG.

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Section: Introductionmentioning

confidence: 99%

Design Optimization of Soft‐Contact Freestanding Rotary Triboelectric Nanogenerator for High‐Output Performance

Chen

Wei

Wang

et al. 2021

Advanced Energy Materials

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“…Biogas produced by biomass residues has become one of the most important alternative energy sources in recent years, as it is derived from non-fossil sources (KANG et al, 2010;PIZARRO-LOAIZA et al, 2021), reducing nutrient and greenhouse gas emissions (AYODELE, OGUNJUYIGBE and ALAO, 2018;PIZARRO-LOAIZA et al, 2021). There are several technologies to perform the energy conversion of biogas.…”

Section: Literature Reviewmentioning

confidence: 99%

Removal of H2S from biogas by adsorption with commercial activated carbon and granular iron oxide

Bonatto,

Becker,

Matias

et al. 2024

Eng. Sanit. Ambient.

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Among the impurities that are harmful to the energy conversion of biogas generated in landfills is hydrogen sulfide (H2S). The present study compared the efficiency of H2S removal with the use of granular activated carbon (GAC) of two commercial brands, Norit GAC and Pelegrini GAC, and with the use of granular iron oxide from mineral residues. The tests were conducted on a laboratory scale, in a glass column, filled with filtering material, applying an inlet flow of gas and monitoring the outlet concentration. The best removal efficiencies occurred with the use of Norit GAC, which presented longer rupture times. Wet gas tests were also carried out, in which rupture and equilibrium times increased with the use of Norit GAC, while with the use of Pelegrini GAC the same adsorptive behavior was not observed. Tests with iron oxide showed low potential for H2S removal due to reduced specific surface values, although it provided removal of the contaminant. Knowledge of the saturation time and adsorption equilibrium data is essential for a better understanding and planning of adsorption systems, in addition to the conduction of studies on the influence of external factors and variations in initial concentration.

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“…In this specific indicator, we emphasize the role of rural energy development, which is an indispensable part of national energy strategies in many current studies (Han et al , 2022; Wu and Han, 2022). A vital aspect of rural energy modernization is introducing household solar water heaters and household biogas digesters (Garcia et al , 2019; Nuru et al , 2022; Pizarro-Loaiza et al , 2021). Rural energy issues deserve much attention because we need to ensure people in remote areas have reliable access to energy and that they can afford it.…”

Section: Quantifying the Energy Trilemma In Chinamentioning

confidence: 99%

Quantifying the energy trilemma in China and assessing its nexus with smart transportation

Zhao

Dong

2022

SRT

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Purpose Mitigating the energy trilemma (ET) is of great importance for dealing with climate change and realizing carbon neutrality. To this end, effectively assessing the level of the ET is essential. The purpose of this study is to evaluate the current situation and the spatio-temporal changes of the ET in the whole of China. Design/methodology/approach Moreover, based on provincial-level data in China for the period 2002–2017, and by using the dynamic estimation model, we aim to determine the specific marginal impacts of smart transportation (ST) on the ET, and the possible channels through which ST works on the ET. Findings We thus present the following findings: (1) The performance of both ET and its three pillars is gradually improving in China. Moreover, the situation tends to vary dramatically among various regions and provinces, and the gap between the best performers and the worst is large. (2) ST plays a significant role in inhibiting the ET, a finding that remains robust after a series of tests. And (3) the ET eradication effect of ST is caused mainly by improved innovation, advanced technical efficiency, and the increasing energy scale. Originality/value Accordingly, we put forward some policy recommendations to help tackle ET and accelerate ST in China.

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Environmental, social and health benefits of alternative renewable energy sources. Case study for household biogas digesters in rural areas

Cited by 34 publications

References 32 publications

Design Optimization of Soft‐Contact Freestanding Rotary Triboelectric Nanogenerator for High‐Output Performance

Design Optimization of Soft‐Contact Freestanding Rotary Triboelectric Nanogenerator for High‐Output Performance

Removal of H2S from biogas by adsorption with commercial activated carbon and granular iron oxide

Quantifying the energy trilemma in China and assessing its nexus with smart transportation

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