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1. Urban spatial structure and total-factor energy efficiency in Chinese provinces

Author:
Yu, Binbin
Source:
Ecological indicators 2021 v.126 pp. 107662
ISSN:
1470-160X
Subject:
energy efficiency,   etc   ; models; urbanization; China;     Show all 4 Subjects
Abstract:
... International experience shows that the urbanization rate between 30% and 70% is a stage of rapid urban development, which means that more people in China will enter cities in the future. Along with this urbanization process, an important theoretical and practical question posed is whether China should choose a development path that is dominated by large cities or small and medium-sized cities. Th ...
DOI:
10.1016/j.ecolind.2021.107662

2. Political governance, corruption perceptions index, and national dynamic energy efficiency

Author:
Lu, Wen-Min; Kweh, Qian Long; Nourani, Mohammad; Lin, Cheng-Yi
Source:
Journal of cleaner production 2021 v.295 pp. 126505
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; governance; models; politics;     Show all 4 Subjects
Abstract:
... This study estimates national dynamic energy efficiency of 49 countries for the period of 2007–2016 by using a dynamic data envelopment analysis model and explores (i) the relationships between the CPI and national dynamic energy efficiency, (ii) political governance and CPI, (iii) political governance and dynamic energy efficiency, and (iv) the mediating role of the CPI on the association between ...
DOI:
10.1016/j.jclepro.2021.126505

3. Energy Efficiency Vision 2050: How will new societal trends influence future energy demand in the European countries?

Author:
Brugger, Heike; Eichhammer, Wolfgang; Mikova, Nadezhda; Dönitz, Ewa
Source:
Energy policy 2021 v.152 pp. 112216
ISSN:
0301-4215
Subject:
energy efficiency,   etc   ; energy policy; vision;     Show all 3 Subjects
Abstract:
... New societal trends are unfolding, such as digitalization, sharing economy and consumer awareness. They will highly influence future energy demand and, depending on their realization, enhance or counteract projected energy efficiency gains. Therefore, these trends have to be accompanied by policies with a strong focus on reducing energy demand (including Energy Efficiency First). This work analyze ...
DOI:
10.1016/j.enpol.2021.112216

4. Polycrystalline Covalent Organic Framework Films Act as Adsorbents, Not Membranes

Author:
Fenton, Julie L.; Burke, David W.; Qian, Dingwen; Olvera de la Cruz, Monica; Dichtel, William R.
Source:
Journal of the American Chemical Society 2021 v.143 no.3 pp. 1466-1473
ISSN:
1520-5126
Subject:
energy efficiency,   etc   ; adsorbents; adsorption; dyes;     Show all 4 Subjects
Abstract:
... Covalent organic framework (COF) membranes are of great promise for energy-efficient separations. Thick, polycrystalline COF films have been reported to separate dyes, salts, bacteria, and nanoparticles on the basis of size-selective transport through ordered pores. Here, we show that these materials function as adsorbents, not as size-sieving membranes. Binding isotherms of several dyes typical o ...
DOI:
10.1021/jacs.0c11159

5. The evolution and future perspectives of energy intensity in the global building sector 1971–2060

Author:
Zhong, Xiaoyang; Hu, Mingming; Deetman, Sebastiaan; Rodrigues, João F.D.; Lin, Hai-Xiang; Tukker, Arnold; Behrens, Paul
Source:
Journal of cleaner production 2021 v.305 pp. 127098
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; economic development; energy conservation;     Show all 3 Subjects
Abstract:
... Energy efficiency plays an essential role in energy conservation and emissions mitigation efforts in the building sector. This is especially important considering that the global building stock is expected to rapidly expand in the years to come. In this study, a global-scale modeling framework is developed to analyze the evolution of building energy intensity per floor area during 1971–2014, its r ...
DOI:
10.1016/j.jclepro.2021.127098

6. Driving factors of changes in international maritime energy consumption: Microdata evidence 2014–2017

Author:
Goh, Tian; Zhong, Sheng; Ang, B.W.; Su, Bin; Ng, Szu Hui; Chai, Kah-Hin
Source:
Energy policy 2021 v.154 pp. 112288
ISSN:
0301-4215
Subject:
energy efficiency,   etc   ; climate; energy policy; freight;     Show all 4 Subjects
Abstract:
... Emissions have been a critical concern for the shipping sector, calling for climate mitigation measures to be implemented in this field urgently. It is therefore useful to understand the factors that influence the relevant empirical trends so that policies can be better tailored to address the climate challenges. Given the high reliance on fossil fuels, this paper has focused on the energy consump ...
DOI:
10.1016/j.enpol.2021.112288

7. Privacy-preserving distributed optimal scheduling of regional integrated energy system considering different heating modes of buildings

Author:
Chen, Houhe; Zhang, Yutong; Zhang, Rufeng; Lin, Chuqiao; Jiang, Tao; Li, Xue
Source:
Energy conversion and management 2021 v.237 pp. 114096
ISSN:
0196-8904
Subject:
energy efficiency,   etc   ; administrative management; algorithms; electricity; models;     Show all 5 Subjects
Abstract:
... The coordinated operation of regional integrated electricity and district heating systems (RIEDHS) can significantly improve energy efficiency. This paper considers the dynamic characteristics of the pipelines in the district heating systems (DHS) and the thermal inertia of buildings with different heating modes, and establishes a distributed optimal scheduling model of RIEDHS. In addition, due to ...
DOI:
10.1016/j.enconman.2021.114096

8. A novel energy efficient path for nitrogen fixation using a non-thermal arc

Author:
Muzammil, Iqbal; Lee, Dae Hoon; Dinh, Duy Khoe; Kang, Hongjae; Roh, Seon Ah; Kim, You-Na; Choi, Seongil; Jung, Chanmi; Song, Young-Hoon
Source:
RSC advances 2021 v.11 no.21 pp. 12729-12738
ISSN:
2046-2069
Subject:
energy efficiency,   etc   ; nitrogen fixation; specific energy;     Show all 3 Subjects
Abstract:
... Plasma-assisted nitrogen fixation is a promising sustainable and clean alternative to the classical Haber–Bosch process. However, the high energy consumption and low production rate of plasma-assisted nitrogen fixation limit its application. This study shows that the non-thermal (non-equilibrium) enhancement of the arc plasma significantly reduces the energy consumption of nitrogen fixation. The h ...
DOI:
10.1039/d1ra01357b

9. (De)coupling and (De)carbonizing in the economies and energy systems of the G20

Author:
Hughes, Larry; de Jong, Moniek; Thorne, Zach
Source:
Environment, development and sustainability 2021 v.23 no.4 pp. 5614-5639
ISSN:
1387-585X
Subject:
energy efficiency,   etc   ; decline; environment; paper; supply;     Show all 5 Subjects
Abstract:
... Reducing emissions will require significant changes in the production and consumption of emissions-intensive energy. These changes will necessitate two broad sets of actions: first, energy-intensive end-use sectors must reduce their demand for energy by becoming more energy efficient, and second, energy systems and the energy supplies they use must become less carbon-intensive. In this paper, we d ...
DOI:
10.1007/s10668-020-00834-7

10. Experimental Study on Fluid Production from Methane Hydrate Sediments under the Marine Triaxial Condition

Author:
Gao, Qiang; Zhao, Jianzhong; Yin, Zhenyuan; Yang, Dong; Zhang, Chi
Source:
Energy & fuels 2021 v.35 no.5 pp. 3915-3924
ISSN:
1520-5029
Subject:
energy efficiency,   etc   ; dissociation; evolution; marine environment; methane;     Show all 5 Subjects
Abstract:
... Methane hydrate (MH) is potential new energy attracting attention from the scientific and industrial communities. In situ depressurization is considered a high energy efficient method. However, the study of the evolution of fluid production and overburden pressure under an in situ environment was significant to exploit CH₄ from methane-hydrate-bearing sediments (MHBS) safely and efficiently. Herei ...
DOI:
10.1021/acs.energyfuels.0c04030

11. The environmental and economic effects of the carbon emissions trading scheme in China: The role of alternative allowance allocation

Author:
Peng, Huarong; Qi, Shaozhou; Cui, Jingbo
Source:
Sustainable Production and Consumption 2021 v.28 pp. 105-115
ISSN:
2352-5509
Subject:
energy efficiency,   etc   ; carbon; economic performance; emissions factor; employment; models; China;     Show all 7 Subjects
Abstract:
... This paper examines the impact of China's carbon emission trading scheme (ETS) on carbon emissions reduction and economic performance with a focus on the role of alternative allowance allocation. Using the industry-by-province panel data during the 2008-2016 period, the empirical strategy employs a difference-in-difference-in-difference model. Some novel findings emerge. First, the ETS leads to a ...
DOI:
10.1016/j.spc.2021.03.031

12. A cascade microfiltration and reverse osmosis approach for energy efficient concentration of skim milk

Author:
Blais, Herehau; Ho, Quang Tri; Murphy, Eoin G.; Schroën, Karin; Tobin, John T.
Source:
Journal of food engineering 2021 v.300 pp. 110511
ISSN:
0260-8774
Subject:
energy efficiency,   etc   ; diffusivity; microfiltration; reverse osmosis; skim milk; solvents; viscosity;     Show all 7 Subjects
Abstract:
... To improve the efficiency of water removal from skim milk, a cascade membrane process of microfiltration and reverse osmosis (RO) was developed whereby skim milk was concentrated to 18% dry matter (DM) by RO at either 15 or 50 °C. The average flux of the RO process at 50 °C was 89% higher than that observed at 15 °C, linked to altered membrane surface fouling behaviour due to lower viscosity, high ...
DOI:
10.1016/j.jfoodeng.2021.110511

13. Fiber degradation and carbohydrate production by combined biological and chemical/physicochemical pretreatment methods of lignocellulosic biomass – A review

Author:
Meenakshisundaram, S.; Fayeulle, A.; Leonard, E.; Ceballos, C.; Pauss, A.
Source:
Bioresource technology 2021 v.331 pp. 125053
ISSN:
0960-8524
Subject:
energy efficiency,   etc   ; biomass; biorefining; digestibility; fuel production; fungi; lignocellulose; sugars;     Show all 8 Subjects
Abstract:
... Sustainable biorefinery concepts based on lignocellulosic biomass are gaining worldwide research interest because of their inexpensiveness and abundance. The recalcitrance of lignocellulosic biomass poses a major hindrance to enhance biofuel production. Therefore, a pretreatment step is critical to prepare the substrates for the downstream process. Combining pretreatment steps help to lower the se ...
DOI:
10.1016/j.biortech.2021.125053

14. Towards sustainable competitiveness: How does financial development affect dynamic energy efficiency in Belt & Road economies?

Author:
Atta Mills, Ebenezer Fiifi Emire; Dong, Juan; Yiling, Liu; Baafi, Mavis Agyapomah; Li, Bing; Zeng, Kailin
Source:
Sustainable Production and Consumption 2021 v.27 pp. 587-601
ISSN:
2352-5509
Subject:
energy efficiency,   etc   ; models; urbanization; Northern Africa; West Asia;     Show all 5 Subjects
Abstract:
... Energy efficiency offers longer-term benefits by enhancing sustainable competitiveness and reducing emissions. This study first applies a dynamic data envelopment analysis (DEA) model with energy stock as a carry-over indicator to measure the inter-temporal energy efficiency in finding the balance between economic growth and emission reduction in 58 Belt & Road (B&R) economies. The authors then ad ...
DOI:
10.1016/j.spc.2021.01.027

15. Modelling and analysis of the energy intensity in polyacrylonitrile (PAN) precursor and carbon fibre manufacturing

Author:
Dér, Antal; Dilger, Nikolas; Kaluza, Alexander; Creighton, Claudia; Kara, Sami; Varley, Russell; Herrmann, Christoph; Thiede, Sebastian
Source:
Journal of cleaner production 2021 v.303 pp. 127105
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; carbon fibers; life cycle inventory; supply chain;     Show all 4 Subjects
Abstract:
... Carbon fibre manufacturing is characterized by a high energy demand due to long processing times and energy intensive thermal processes. Since energy flow related information about the carbon fibre production is rare, lacks in detail and ranges widely, the goal of this paper is to increase the transparency of energy flows in the carbon fibre value chain. To this end, the extended energy value stre ...
DOI:
10.1016/j.jclepro.2021.127105

16. Empirical data-driven multi-layer perceptron and radial basis function techniques in predicting the performance of nanofluid-based modified tubular solar collectors

Author:
Sadeghi, Gholamabbas; Pisello, Anna Laura; Nazari, Saeed; Jowzi, Mohammad; Shama, Farzin
Source:
Journal of cleaner production 2021 v.295 pp. 126409
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; cupric oxide; nanofluids; solar collectors; temperature;     Show all 5 Subjects
Abstract:
... In the present study, the modified evacuated tube solar collector (METSC) with a bypass pipe utilizing copper oxide/distilled water (Cu₂O/DW) nanofluid is experimented. Then, the performance of METSC was predicted through Artificial Neural Networks (ANNs) techniques. The input variables were different volumes of the storage tank from 5 to 8 l, various diameters of the bypass pipe from 6 to 10 mm, ...
DOI:
10.1016/j.jclepro.2021.126409

17. Industry 4.0 and opportunities for energy sustainability

Author:
Ghobakhloo, Morteza; Fathi, Masood
Source:
Journal of cleaner production 2021 v.295 pp. 126427
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; energy industry; equipment; landscapes; models; primary energy;     Show all 6 Subjects
Abstract:
... Understanding the interactions of Industry 4.0 and sustainability is a cutting-edge research topic. The present study aims to contribute to this research topic by explaining how Industry 4.0 may contribute to energy sustainability. The present study performs a content-centric qualitative review of the extant digitalization literature to identify the primary energy sustainability functions of Indus ...
DOI:
10.1016/j.jclepro.2021.126427

18. Ultrasound as a pre-treatment for extraction of bioactive compounds and food safety: A review

Author:
Perera, Conrad O.; Alzahrani, Mona Ahmed J.
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.142 pp. 111114
ISSN:
0023-6438
Subject:
energy efficiency,   etc   ; animals; denaturation; food safety; heat; peptidoglycans; spores; ultrasonics;     Show all 8 Subjects
Abstract:
... Application of ultrasound has been considered a “green” technology, because it offers advantages in terms of selectivity, better quality, use of less chemicals, and energy efficiency. Hence, it is well suited for extraction of bioactive compounds from plant and animal materials, which generally require large quantities of organic solvents. In addition to extraction, the inactivation of certain mic ...
DOI:
10.1016/j.lwt.2021.111114

19. Energy-efficient scheduling for a permutation flow shop with variable transportation time using an improved discrete whale swarm optimization

Author:
Xin, Xu; Jiang, Qiangqiang; Li, Sihang; Gong, Shuaiyu; Chen, Kang
Source:
Journal of cleaner production 2021 v.293 pp. 126121
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; algorithms; energy conservation; models; mutation; transportation; whales;     Show all 7 Subjects
Abstract:
... As environmental issues become more serious, energy-efficient scheduling has emerged as a research hotspot. Although permutation flow shop scheduling has attracted substantial research attention, practical cases that consider conveyor speed control energy-saving strategies have rarely been studied. Motivated by this gap, this paper addresses a permutation flow shop scheduling problem with sequence ...
DOI:
10.1016/j.jclepro.2021.126121

20. Evolutionary game based real-time scheduling for energy-efficient distributed and flexible job shop

Author:
Wang, Jin; Liu, Yang; Ren, Shan; Wang, Chuang; Wang, Wenbo
Source:
Journal of cleaner production 2021 v.293 pp. 126093
ISSN:
0959-6526
Subject:
energy efficiency,   etc   ; Internet; architecture; case studies; decision making; manufacturing;     Show all 6 Subjects
Abstract:
... With the global energy crisis and environmental issues becoming severe, more attention has been paid to production scheduling considering energy consumption than ever before. However, in the context of intelligent manufacturing, most studies apply the industrial internet of things (IIoT) to improve energy efficiency. It may cause the real-time data in the workshop unable to be collected and treate ...
DOI:
10.1016/j.jclepro.2021.126093