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1. Forecasting crude oil price returns: Can nonlinearity help?

Author:
Yaojie Zhang; Mengxi He; Danyan Wen; Yudong Wang
Source:
Energy 2023 v.262 pp. 125589
ISSN:
0360-5442
Subject:
energy costs,   etc   ; energy; exercise; petroleum; prediction; supply balance; time series analysis;     Show all 7 Subjects
Abstract:
... The nonlinear components of predictors could be informative, while conventional predictive regression models only consider the linear components in the time-series prediction of crude oil price returns. Inspired by this, we propose a novel method to obtain useful information embedded in the predictors’ nonlinearity. We incorporate not only the original predictors (i.e., the linear components) but ...
DOI:
10.1016/j.energy.2022.125589

2. Multi-period multi-objective optimisation model for multi-energy urban-industrial symbiosis with heat, cooling, power and hydrogen demands

Author:
Kang Ying Pang; Peng Yen Liew; Kok Sin Woon; Wai Shin Ho; Sharifah Rafidah Wan Alwi; Jiří Jaromír Klemeš
Source:
Energy 2023 v.262 pp. 125201
ISSN:
0360-5442
Subject:
energy costs,   etc   ; batteries; carbon; energy; energy industry; energy recovery; heat; hydrogen; models; solar energy; supply balance; sustainable development; symbiosis;     Show all 13 Subjects
Abstract:
... Hydrogen is seen as the future energy that will help decarbonise the emissions of global energy use. Hydrogen-related technologies have recently attracted considerable attention due to their relatively low emissions and high energy yield. Even then, little attention was given to hydrogen's use in energy distribution networks. A renewable-based multi-energy system (RMES) considers power, cooling, h ...
DOI:
10.1016/j.energy.2022.125201

3. Optimal fuzzy based economic emission dispatch of combined heat and power units using dynamically controlled Whale Optimization Algorithm

Author:
Vinay Kumar Jadoun; G Rahul Prashanth; Siddharth Suhas Joshi; K. Narayanan; Hasmat Malik; Fausto Pedro García Márquez
Source:
Applied energy 2022 v.315 pp. 119033
ISSN:
0306-2619
Subject:
energy costs,   etc   ; algorithms; energy; heat;     Show all 4 Subjects
Abstract:
... The significance and purpose of this multi-objective Combined Heat and Power Economic Emission Dispatch (MO-CHPEED) problem aims to determine the optimal generator output of the co-generation systems, in which two conflicting objectives of the fuel cost and mass of emissions are to be simultaneously minimized. The nonlinear and nonconvex nature of the objective functions needs a good optimization ...
DOI:
10.1016/j.apenergy.2022.119033

4. Computational screening of highly selective and active electrocatalytic nitrogen reduction on single-atom-embedded artificial holey SnN3 monolayers

Author:
Xian Wang; Qiang Zhang; Jianyang Zhou
Source:
Journal of colloid and interface science 2022 v.610 pp. 546-556
ISSN:
0021-9797
Subject:
energy costs,   etc   ; durability; hydrogen production; nitrogen;     Show all 4 Subjects
Abstract:
... Billowy interest during nitrogen reduction reaction (NRR) for single-atom catalysts (SACs) has been evoked by the discovery of single transition metal (TM) atom structures featured by TM-Nx coordinate sites as an excellent catalytic center. However, a great challenge of currently available SACs, far away from industrial requirement, is the low activity and poor selectivity. Therefore, in NRR, the ...
DOI:
10.1016/j.jcis.2021.11.093

5. A modified rule-based energy management scheme for optimal operation of a hybrid PV-wind-Stirling engine integrated multi-carrier energy system

Author:
Godfrey T. Udeh; Stavros Michailos; Derek Ingham; Kevin J. Hughes; Lin Ma; Mohamed Pourkashanian
Source:
Applied energy 2022 v.312 pp. 118763
ISSN:
0306-2619
Subject:
energy costs,   etc   ; batteries; energy; operating costs;     Show all 4 Subjects
Abstract:
... In this study, rule-based energy management strategies (EMS) based on the modifications of the traditional load following (LF) and circuit charging (CC) have been proposed and developed to effectively coordinate the operation of an integrated multi-carrier hybrid energy system. The proposed EMS aim to overcome some of the challenges of the traditional rule-based EMS and broaden their application t ...
DOI:
10.1016/j.apenergy.2022.118763

6. Does structural change boost the energy demand in a fossil fuel-driven economy? New evidence from Iran

Author:
Bahareh Oryani; Hesam Kamyab; Аli Mоridiаn; Zahra Azizi; Shahabaldin Rezania; Shreeshivadasan Chelliapan
Source:
Energy 2022 v.254 pp. 124391
ISSN:
0360-5442
Subject:
energy costs,   etc   ; econometrics; energy; models; Iran;     Show all 5 Subjects
Abstract:
... Based on data availability, this study investigates the impact of structural change on energy consumption (EC) in Iran from 1976 to 2017. Therefore, the economic complexity index (ECI) was incorporated into the energy demand besides real GDP (RGDP) and real energy price index (REPI), which is constructed based on Iran's leading energy carriers. Multiple econometrics techniques are applied to deliv ...
DOI:
10.1016/j.energy.2022.124391

7. Stochastic gradient-based fast distributed multi-energy management for an industrial park with temporally-coupled constraints

Author:
Dafeng Zhu; Bo Yang; Chengbin Ma; Zhaojian Wang; Shanying Zhu; Kai Ma; Xinping Guan
Source:
Applied energy 2022 v.317 pp. 119107
ISSN:
0306-2619
Subject:
energy costs,   etc   ; algorithms; electricity; energy; prices;     Show all 5 Subjects
Abstract:
... Contemporary industrial parks are challenged by the growing concerns about high cost and low efficiency of energy supply. Moreover, in the case of uncertain supply/demand, how to mobilize delay-tolerant elastic loads and compensate real-time inelastic loads to match multi-energy generation/storage and minimize energy cost is a key issue. Since energy management is hardly to be implemented offline ...
DOI:
10.1016/j.apenergy.2022.119107

8. Asymmetric effects of oil shocks on economic policy uncertainty

Author:
Najmi Aimer; Abdulmula Lusta
Source:
Energy 2022 v.241 pp. 122712
ISSN:
0360-5442
Subject:
energy costs,   etc   ; economic policy; energy; markets; oils; uncertainty;     Show all 6 Subjects
Abstract:
... The aim of this paper is to investigate the asymmetric effects of the crude oil price on global economic policy uncertainty (EPU) using a nonlinear, autoregressive distributed lag approach. The results of the bounds test indicate that there is a long-run equilibrium relationship between economic uncertainty and crude oil price. Furthermore, we conclude that the long-run equilibrium relationship is ...
DOI:
10.1016/j.energy.2021.122712

9. A knee-guided algorithm to solve multi-objective economic emission dispatch problem

Author:
Xiaobing Yu; Yuchen Duan; Wenguan Luo
Source:
Energy 2022 v.259 pp. 124876
ISSN:
0360-5442
Subject:
energy costs,   etc   ; algorithms; climate change; energy; environmental protection;     Show all 5 Subjects
Abstract:
... Environmental protection and climate change have addressed tremendous pressure on thermal plants. So, the Economic Emission Dispatch (EED) problem has to consider bi-objective: the fuel cost and emission dispatch, which can be solved by the conventional Multi-Objective Evolutionary Algorithms (MOEAs). However, these MOEAs often provide well-distributed Pareto Optimal Front (POF), which may be a bu ...
DOI:
10.1016/j.energy.2022.124876

10. Dependence structure between the international crude oil market and the European markets of biodiesel and rapeseed oil

Author:
Muhammad Yahya; Anupam Dutta; Elie Bouri; Christoffer Wadström; Gazi Salah Uddin
Source:
Renewable energy 2022 v.197 pp. 594-605
ISSN:
0960-1481
Subject:
energy costs,   etc   ; biodiesel; markets; petroleum; rapeseed oil; Europe;     Show all 6 Subjects
Abstract:
... Being an environmentally friendly fuel obtained from rapeseed oil, biodiesel is used extensively in Europe. However, the dependence structure between global crude oil prices and the European prices of biodiesel and rapeseed oil is understudied and unclear. In this paper, we address this gap by utilizing asymmetric copulas and cross-quantilogram approaches on daily data. The results of the DCC-Stud ...
DOI:
10.1016/j.renene.2022.07.112

11. Optimization and Recovery of a Pressure Swing Adsorption Process for the Purification and Production of Bioethanol

Author:
Adolfo Rafael López Núñez; Jesse Y. Rumbo Morales; Alexis U. Salas Villalobos; Javier De La Cruz-Soto; Gerardo Ortiz Torres; Julio C. Rodríguez Cerda; Manuela Calixto-Rodriguez; Jorge A. Brizuela Mendoza; Yehoshua Aguilar Molina; Omar Alí Zatarain Durán; Alan F. Pérez Vidal
Source:
Fermentation 2022 v.8 no.7 pp. -
ISSN:
2311-5637
Subject:
energy costs,   etc   ; adsorbents; adsorption; bioethanol; energy; ethanol; fermentation;     Show all 7 Subjects
Abstract:
... Today, there are new technologies to produce bioethanol: one of them is the Pressure Swing Adsorption (PSA) process. This process has displaced other separation technologies due to the use of natural adsorbents and its methodology to obtain high purities with a lower energy cost. The aim of this work focuses on the optimization of the PSA process (experimental case) to obtain a higher recovery and ...
DOI:
10.3390/fermentation8070293

12. The Setpoint Curve as a Tool for the Energy and Cost Optimization of Pumping Systems in Water Networks

Author:
Christian F. León-Celi; Pedro L. Iglesias-Rey; Francisco Javier Martínez-Solano; Daniel Mora-Melia
Source:
Water 2022 v.14 no.15 pp. -
ISSN:
2073-4441
Subject:
energy costs,   etc   ; case studies; energy; water; water distribution;     Show all 5 Subjects
Abstract:
... In water distribution networks, the adjustment of the driving curves of pumping systems to the setpoint curves allows for determining the minimum energy cost that can be achieved in terms of pumping. This paper presents the methodology for calculating the optimal setpoint curves in water networks with multiple pumping systems, pressure dependent and independent consumption, with and without storag ...
DOI:
10.3390/w14152426

13. Performance comparison of biomethane, natural gas and gasoline in powering a pickup truck

Author:
Pruk Aggarangsi; James Moran; Sirichai Koonaphapdeelert; Nakorn Tippayawong
Source:
Biofuels 2022 v.13 no.8 pp. 957-964
ISSN:
1759-7277
Subject:
energy costs,   etc   ; biogas; gasoline; methane; natural gas; torque;     Show all 6 Subjects
Abstract:
... This paper compares the operating performance of biomethane with both natural gas and gasoline in a small pickup truck. Three different purity levels were used for the biomethane, with the lowest having an 83% methane concentration. The purpose of this paper is to compare the performance of a biomethane powered vehicle, by measuring its power, torque, emissions, fuel efficiency and cost to examine ...
DOI:
10.1080/17597269.2022.2041231

14. Investigation of the potential of R717 blends as working fluids in the organic Rankine cycle (ORC) for ocean thermal energy conversion (OTEC)

Author:
Min-Hsiung Yang; Rong-Hua Yeh
Source:
Energy 2022 v.245 pp. 123317
ISSN:
0360-5442
Subject:
energy costs,   etc   ; ammonia; economic performance; energy conversion; thermal energy;     Show all 5 Subjects
Abstract:
... Ammonia, R717, has been considered as a useful working fluid of the organic Rankine cycle (ORC) in the OTEC. The aim of this study is to investigate the potentials of R717 blends on thermodynamic and economic performances to surpass pure R717 used in an OTEC. The environmentally friendly refrigerants of R32 and R1234YF are considered and selected as the components of R717 blends. The effects of ma ...
DOI:
10.1016/j.energy.2022.123317

15. Solving high-dimensional multi-area economic dispatch problem by decoupled distributed crisscross optimization algorithm with population cross generation strategy

Author:
Anbo Meng; Xuancong Xu; Zhan Zhang; Cong Zeng; Ruduo Liang; Zheng Zhang; Xiaolin Wang; Baiping Yan; Hao Yin; Jianqiang Luo
Source:
Energy 2022 v.258 pp. 124836
ISSN:
0360-5442
Subject:
energy costs,   etc   ; algorithms; decentralization; economic dispatch; energy; system optimization;     Show all 6 Subjects
Abstract:
... Multi-area economic dispatch (MAED) is a non-convex non-differentiable high-dimensional optimization problem, aiming to minimize the total fuel cost and meet the requirements of load balance. Current distributed mathematical programming methods are hard to solve the valve point effect in MAED. In addition, distributed meta-heuristic algorithms so far require a centralized controller. To address th ...
DOI:
10.1016/j.energy.2022.124836

16. SO₂ capture by 2-pyridineethanol through the formation of a zwitterionic liquid

Author:
Zonghua Wang; Dezhong Yang
Source:
Chemical communications 2022 v.58 no.42 pp. 6212-6214
ISSN:
1364-548X
Subject:
energy costs,   etc   ; absorption; liquids; partial pressure; solvents; sulfites; temperature; zwitterions;     Show all 8 Subjects
Abstract:
... In this work, we report the SO₂ capture by 2-pyridineethanol (2-PyEtOH). 2-PyEtOH exhibits a high SO₂ capacity, up to 1.16 g SO₂ per g solvent at 1.0 atm. The effect of temperature and pressure on the SO₂ absorption by 2-PyEtOH is investigated. It is found that 2-PyEtOH can capture 0.57 g SO₂ per g solvent even at a low SO₂ partial pressure of 0.10 atm. Interestingly, the absorbed SO₂ by 2-PyEtOH ...
DOI:
10.1039/d2cc01722a

17. Solving static and dynamic multi-area economic dispatch problems using an improved competitive swarm optimization algorithm

Author:
Xu Chen; Guowei Tang
Source:
Energy 2022 v.238 pp. 122035
ISSN:
0360-5442
Subject:
energy costs,   etc   ; algorithms; economic dispatch; energy; power generation; system optimization;     Show all 6 Subjects
Abstract:
... Multi-area economic dispatch (MAED) is an important non-linear optimization problem in power system operation. MAED involves multiple power generation areas, and minimizes the total fuel cost by determining the power generation within areas and the power interchange between areas. This paper proposes an improved competitive swarm optimization (ImCSO) algorithm to solve the MAED problems. The ImCSO ...
DOI:
10.1016/j.energy.2021.122035

18. Investigating the effects of energy price index on technical environmental efficiency in Iran

Author:
M. Ghodratnama; S. M. J. Razmi; S. S. M. Sadati; S. F. Razmi
Source:
International journal of environmental science and technology 2022 v.19 no.3 pp. 2119-2128
ISSN:
1735-1472
Subject:
energy costs,   etc   ; capital; carbon dioxide; energy efficiency; pollution; technology; Iran;     Show all 7 Subjects
Abstract:
... This study investigates the effects of increasing real energy prices on technical environmental efficiency in Iran using a directional distance function. To achieve this purpose, six variables are used, namely labor, capital stock, energy consumption, real energy price, industrial value added, and environmental cost index, for the period 2009–2015. Moreover, two indexes for industrial environmenta ...
DOI:
10.1007/s13762-021-03348-5

19. Queuing to refuel before price rise in China: How do gasoline price changes affect consumer responses and behaviours?

Author:
Lei Xu; Jingrui Chen; Fang Qu; Jue Wang; Yi Lu
Source:
Energy 2022 v.253 pp. 124166
ISSN:
0360-5442
Subject:
energy costs,   etc   ; automobiles; energy; gasoline; markets; models; prices; questionnaires; surveys;     Show all 9 Subjects
Abstract:
... As the largest automobile market in the world, gasoline price has had a profound impact on consumers in China. However, consumers always queue to refuel when gasoline prices rise. To examine the consumer responses and behaviors to gasoline price rise, we built a Motivation-Individuality-Reaction (MIR) model with a novel comprehensive analysis approach that employed a social network-based public su ...
DOI:
10.1016/j.energy.2022.124166

20. Whether to abandon or continue the petroleum product price regulation in China？

Author:
Wenrui Fan; Zanxin Wang
Source:
Energy policy 2022 v.165 pp. 112890
ISSN:
0301-4215
Subject:
energy costs,   etc   ; energy policy; models; petroleum; prices; social welfare; China;     Show all 7 Subjects
Abstract:
... Petroleum product price regulations are usually adopted to alleviate the shocks of crude oil price volatility on macroeconomy by adjusting the petroleum product price. However, the regulation can contribute to social welfare by alleviating the price shock on the one hand, but it can reduce welfare due to its price distortions on the other hand. Thus, this study assessed the net social welfare effe ...
DOI:
10.1016/j.enpol.2022.112890