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Thermal performance analysis of an energy pile with triple helix ground heat exchanger
, Article Geothermics ; Volume 104 , 2022 ; 03756505 (ISSN) ; Asgari, B ; Rostami, M ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
A Ground Source Heat Pump (GSHP) is a renewable energy-based HVAC system that extracts or supplies heat from/to the ground via a Ground Heat Exchanger (GHE). One of the most commonly used types of GHE in GSHP systems is the energy pile. In this realm, the GSHP system with a triple helix energy pile has become the focus of attention. To this aim, a comprehensive three-dimensional transient Computational Fluid Dynamics model of the energy pile with triple helix GHE and the surrounding soil is developed. The effect of several parameters, including helix pitch, helix diameter and pipe diameter, on the thermal performance of the system, is investigated. Simulated cases are chosen using the design...
Data-driven joint TEP-BESS co-planning scheme to relieve transmission lines congestion: A min-max regret method
, Article Sustainable Energy Technologies and Assessments ; Volume 53 , 2022 ; 22131388 (ISSN) ; Moeini Aghtaie, M ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
Transmission lines congestion has recently been a vital challenge in power systems operation due to the intermittent outputs of renewable energy sources (RES). Therefore, an efficient transmission congestion management (TCM) method should be defined to deal with the congestion issue. This paper aims to propose a simultaneous linearized two-stage TEP-BESS co-planning optimization model to relieve transmission lines congestion. In doing so, a novel TCM structure is suggested in a pool-based deregulated data-driven optimal power flows (D-OPF) by the computationally effective min-max regret method to consider future scenarios of generating units and demanded loads. To improve the efficiency of...
Maximizing the utilization of existing grids for renewable energy integration
, Article Renewable Energy ; Volume 189 , 2022 , Pages 618-629 ; 09601481 (ISSN) ; Kazemi, M ; Amjady, N ; Zareipour, H ; Hosseini, S. H ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
This paper presents a new model to maximize the utilization of existing transmission system infrastructure by optimally sizing and siting the future developments of variable renewable energy sources (VRES). The model tries to maximize the integration of VRES in power systems with minimum expected energy curtailment without relying on new investments in the transmission systems. The proposed model is formulated as a linear stochastic programming optimization problem where VRES output scenarios are generated such that their spatio-temporal correlations are maintained. The Progressive Hedging Algorithm (PHA) with bundled scenarios is utilized to solve the proposed model for large-scale cases....
Hierarchical nickel-cobalt sulfide/niobium pentoxide decorated green carbon spheres toward efficient energy storage
, Article Sustainable Energy and Fuels ; Volume 6, Issue 12 , 2022 , Pages 3042-3055 ; 23984902 (ISSN) ; Shahi, M ; Dubal, D. P ; Shahrokhian, S ; Sharif University of Technology
Royal Society of Chemistry
2022
Abstract
Progression in the renewable energy field is tied to the development of high-performance energy storage devices with superior power and energy densities. Herein, an innovative material design was employed to prepare binder-free nickel-cobalt sulfide (NCS) on niobium pentoxide (Nb2O5)-decorated carbon spheres (CSs). Initially, CSs were directly grown on nickel foam (NF) via a hydrothermal carbonization approach. Core/shell-like NCS@Nb2O5@CS-NF was then synthesized through a hydrothermal process, followed by an electrodeposition process. When employed as an electrode material, NCS@Nb2O5@CS-NF achieved an excellent volumetric capacity of 9300 C L−1 at a current density of 18 A L−1. Later, an...
A new application of measurement of alternatives and ranking according to compromise solution (MARCOS) in solar site location for electricity and hydrogen production: A case study in the southern climate of Iran
, Article Energy ; Volume 261 , 2022 ; 03605442 (ISSN) ; Firoozabadi, B ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
In recent years, declining fossil fuel reserves and increasing environmental concerns led to higher utilization of renewable energy source (RES). One of the RES is Solar energy which is abundantly found in different areas of the globe, particularly in Iran. The aim of this research is to select a suitable site for constructing a solar power plant to generate electricity-hydrogen in southern Iran, Kerman province. For this purpose, a new hybrid Multi criteria decision making method is used. The Stepwise Weight Assessment Ratio Analysis (SWARA)method is used to weigh the criteria and the Measurement of alternatives and ranking according to Compromise solution (MARCOS)method is used to rank...
Flexibility pricing of integrated unit of electric spring and EVs parking in microgrids
, Article Energy ; Volume 239 , 2022 ; 03605442 (ISSN) ; Aghaei, J ; Pirouzi, S ; Niknam, T ; Fotuhi Firuzabad, M ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
Electric spring (ES) as a breakthrough in power electronics has led to a revolution in demand-side management. This paper presents flexible power management (FPM) of a networked microgrid (MG) in the presence of renewable energy sources (RESs) and flexibility sources (FSs). The FSs include the novel topology of the integrated unit of ES with electric vehicles (EVs) parking (IUEE) and incentive-based demand response program (DRP). The proposed FPM model is formulated as an optimization problem that minimizes the difference between the expected energy cost and the expected profit of FSs' flexibility subject to the AC optimal power flow (AC-OPF), RESs, FSs, and MG flexibility constraints. In...
A new application of multi criteria decision making in energy technology in traditional buildings: A case study of Isfahan
, Article Energy ; Volume 240 , 2022 ; 03605442 (ISSN) ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
The use of hybrid renewable energy has increased in recent years due to the growing environmental concerns caused by the consumption of fossil fuels. The purpose of this study was the economic-environmental feasibility of using hybrid energy systems in one of the most polluted and populated provinces in Iran, Isfahan province. Various components of the hybrid energy system such as wind turbine (WT), photovoltaic panel (PV), diesel generator (DG), converter (CV) along with two scenarios of energy storage including battery (BT) and hydrogen storage have been considered in modeling the energy system. Six scenarios were considered based on the combination of different components for supplying...
Chance-constrained programming for optimal scheduling of combined cooling, heating, and power-based microgrid coupled with flexible technologies
, Article Sustainable Cities and Society ; Volume 77 , 2022 ; 22106707 (ISSN) ; Aliahmadi, M ; Faghri, S ; Ensaf, M ; Ghasemi, A ; Abdoos, A. A ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
Microgrids (MGs) have a special role in developing several consumers' energy infrastructure and supply in more economical, safer, and sustainable ways. The interaction and mutual relationship between each energy carrier on the reliable performance of other carriers and the high growth of tri-generation technologies in the MG face the optimal performance of such networks with many challenges. Combined cooling, heating, and power (CCHP)-based MGs are a new generation of MGs that simultaneously provide electrical, thermal, and cooling loads. However, the interaction between these carriers is very influential in CCHP-based MG's operation, which is rarely analyzed. Hence, this paper focuses on...
Hybrid stochastic/robust flexible and reliable scheduling of secure networked microgrids with electric springs and electric vehicles
, Article Applied Energy ; Volume 300 , 2021 ; 03062619 (ISSN) ; Aghaei, J ; Pirouzi, S ; Niknam, T ; Fotuhi Firuzabad, M ; Shafie khah, M ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Electric spring (ES) as a novel concept in power electronics has been developed for the purpose of dealing with demand-side management. In this paper, to conquer the challenges imposed by intermittent nature of renewable energy sources (RESs) and other uncertainties for constructing a secure modern microgrid (MG), the hybrid distributed operation of ESs and electric vehicles (EVs) parking lot is suggested. The proposed approach is implemented in the context of a hybrid stochastic/robust optimization (HSRO) problem, where the stochastic programming based on unscented transformation (UT) method models the uncertainties associated with load, energy price, RESs, and availability of MG equipment....
Expansion planning of generation technologies in electric energy systems under water use constraints with renewable resources
, Article Sustainable Energy Technologies and Assessments ; Volume 43 , 2021 ; 22131388 (ISSN) ; Amraee, T ; Firuzabad, M. F ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Thermal power generation needs great volumes of water for cooling purposes. A multi-period Low Water Generation Expansion Planning (LW-GEP) model is proposed to plan the future generation mix including type, capacity, time of installation, and proper cooling system of generation technologies to supply the future electric peak loads under the water resource limitations. Different types of generation technologies with conventional and modern cooling systems are considered as expansion candidates in the proposed LW-GEP model. The access of candidate and existing power plants to the water resources are considered. Renewable resources as water smart solutions are integrated in the proposed energy...
Development of a framework for the sustainability evaluation of renewable and fossil fuel power plants using integrated LCA-emergy analysis: A case study in Iran
, Article Renewable Energy ; Volume 179 , 2021 , Pages 1548-1564 ; 09601481 (ISSN) ; Avami, A ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
This study presents a comprehensive framework for evaluating renewable and non-renewable power plants' performance using the Life Cycle Analysis (LCA) and emergy analysis. The emergy analysis is used to consider the free ecosystem services in the sustainability of the systems as a supplement to the LCA. The results indicate that the wind and photovoltaic power plants have the best performance in terms of the LCA analysis, while the wind and combined cycle power plants have the highest emergy sustainability index. The best scenario is chosen under a two-objective optimization problem, including the single score and emergy sustainability as objective functions. Here, the wind power plant is...
Use of a hybrid wind—solar—diesel—battery energy system to power buildings in remote areas: A case study
, Article Sustainability (Switzerland) ; Volume 13, Issue 16 , 2021 ; 20711050 (ISSN) ; Hosseini Dehshiri, S. S ; Hosseini Dehshiri, S. J ; Mostafaeipour, A ; Issakhov, A ; Techato, K ; Sharif University of Technology
MDPI
2021
Abstract
The emerging environmental consequences of overdependence on fossil fuels have pushed many countries to invest in clean and renewable sources of power. Countries like Iran where these sources can be found in abundance can take advantage of this potential to reduce their dependence on fossil fuels. This study investigated the feasibility of the standalone use of a hybrid renewable energy system (HRES) to power buildings in the Bostegan village in the Hormozgan province of Iran. Technical, economic, and environmental assessments were performed with the help of the Hybrid Optimization of Multiple Energy Resources (HOMER) software, and the optimal configuration for the system components was...
Development of a framework for the sustainability evaluation of renewable and fossil fuel power plants using integrated LCA-emergy analysis: a case study in Iran
, Article Renewable Energy ; Volume 179 , 2021 , Pages 1548-1564 ; 09601481 (ISSN) ; Avami, A ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
This study presents a comprehensive framework for evaluating renewable and non-renewable power plants' performance using the Life Cycle Analysis (LCA) and emergy analysis. The emergy analysis is used to consider the free ecosystem services in the sustainability of the systems as a supplement to the LCA. The results indicate that the wind and photovoltaic power plants have the best performance in terms of the LCA analysis, while the wind and combined cycle power plants have the highest emergy sustainability index. The best scenario is chosen under a two-objective optimization problem, including the single score and emergy sustainability as objective functions. Here, the wind power plant is...
Use of a hybrid wind—solar—diesel—battery energy system to power buildings in remote areas: a case study
, Article Sustainability (Switzerland) ; Volume 13, Issue 16 , 2021 ; 20711050 (ISSN) ; Hosseini Dehshiri, S ; Hosseini Dehshiri, J ; Mostafaeipour, A ; Issakhov, A ; Techato, K ; Sharif University of Technology
MDPI
2021
Abstract
The emerging environmental consequences of overdependence on fossil fuels have pushed many countries to invest in clean and renewable sources of power. Countries like Iran where these sources can be found in abundance can take advantage of this potential to reduce their dependence on fossil fuels. This study investigated the feasibility of the standalone use of a hybrid renewable energy system (HRES) to power buildings in the Bostegan village in the Hormozgan province of Iran. Technical, economic, and environmental assessments were performed with the help of the Hybrid Optimization of Multiple Energy Resources (HOMER) software, and the optimal configuration for the system components was...
Finding the best station in Belgium to use residential-scale solar heating, One-year dynamic simulation with considering all system losses: Economic analysis of using ETSW
, Article Sustainable Energy Technologies and Assessments ; Volume 45 , June , 2021 ; 22131388 (ISSN) ; Jahangiri, M ; Mosavi, A ; Jalaladdin Hosseini Dehshiri, S ; Shahabaddin Hosseini Dehshiri, S ; Ebrahimi, S ; Al Sadat Etezadi, Z ; Karimipour, A ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
The main purpose of this study is to provide the heating power for space heating and sanitary hot water for a residential house in sixteen stations located in Belgium using evacuated tube solar water (ETSW). A one-year dynamic simulation was performed using TSOL 5.5 software and Meteonorm 7.1 was used to obtain the climatic data. Technical and environmental studies as well as station rankings are the parameters that have been examined for the first time in the present study. The weighting results of using the Best-Worst method (BWM) revealed that total solar fraction and CO2 emission avoided have the highest and lowest weight, respectively. Station ranking was performed using ARAS technique...
A thorough analysis of potential geothermal project locations in Afghanistan
, Article Sustainability (Switzerland) ; Volume 12, Issue 20 , 12 October , 2020 , Pages 1-17 ; Hosseini Dehshiri, S. J ; Hosseini Dehshiri, S. S ; Jahangiri, M ; Techato, K ; Sharif University of Technology
MDPI AG
2020
Abstract
In recent decades, many countries have shown a growing interest in the use of renewable energies for power generation. Geothermal energy is a clean and environmentally friendly source of renewable energy that can be used to produce electricity and heat for industrial and domestic applications. While Afghanistan has undeniably good geothermal potential that can be utilised to alleviate the country’s current energy limitations, so far this potential has remained completely untapped. In this study, the suitability of 21 provinces for geothermal project implementation in Afghanistan was evaluated using multiple multi-criteria decision-making (MCDM) methods. The stepwise weight assessment ratio...
Does the short-term boost of renewable energies guarantee their stable long-term growth? Assessment of the dynamics of feed-in tariff policy
, Article Renewable Energy ; Volume 159 , October , 2020 , Pages 1252-1268 ; Hamed Shakouri, G ; Mashayekhi, A. N ; Kazemi, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Feed-in tariff (FiT) is one of the most efficient ways that many governments throughout the world use to stimulate investment in renewable energies (REs) technology. For governments, financial management of the policy could be challenging as it needs a considerable amount of budget to support RE producers during the long remuneration period. In this paper, it has been illuminated that the early growth of REs capacity could be a temporary boost. And the socio-economic structure of the system will backlash the policy if some social mechanisms are not considered. Social tolerance for paying REs tax and potential investors’ trust emanated from budget-related mechanisms -which have rarely been...
Optimal design of renewable integrated heat and electricity supply systems with genetic algorithm: household application in Iran
, Article International Journal of Environmental Science and Technology ; Volume 17, Issue 4 , 2020 , Pages 2185-2196 ; Saboohi, Y ; Sharif University of Technology
Springer
2020
Abstract
The objective of the present study is the development of an optimization model for identifying the best configuration of renewable-based integrated energy systems. The system includes a combination of renewable energy systems such as wind, solar, hydropower and hydrogen production, storage facilities and conventional fossil-fuel generators. The developed tool consists of various modules where water heating assumes the utilization of waste energy as an option. Furthermore, the application, which is demonstrated for a case study in Tehran, has been considered. The power exchange with the distribution network and injection of hydrogen produced from excess renewable sources into gas network are...
Enhancement the economical and environmental aspects of plus-zero energy buildings integrated with INVELOX turbines
, Article Renewable Energy ; Volume 153 , 2020 , Pages 1355-1367 ; Jirdehi, M. A ; Amiri, N ; Omidi, S ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
A multi-objective energy management strategy for a plus-zero energy building during a year, incorporating renewable resources, air to water heat pump, micro-CHP, ventilation, energy storage systems and thermal-cooling-electrical loads have been proposed in this paper. In this strategy, a novel technology of wind turbine that has been known as INVELOX has been investigated and collaborated in ZEB planning to reach efficient plus-ZEB at lower cost and pollution. As well the building can sell and buy power to/from the upstream network. The total cost and pollution of the building have been considered as objective functions. Also, the effect of objective function priority on the planning of the...
Marine hydrokinetic energy harvesting performance of diamond and square oscillators in tandem arrangements
, Article Energy ; Volume 202 , 2020 ; Esfehani, M. J ; Zeinoddini, M ; Naeeni, S. T. O ; Wu, J ; Shahvaghar Asl, S ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
The global demand for renewable energy sources has arisen significant research interests in marine hydrokinetic energy harvesting from flow induced vibrations. The current study deals with the hydrokinetic energy harvesting potentials of diamond and square oscillators at various inline configurations. Both the sharp edge sections and the wake induced vibrations in tandem arrangement can lead to galloping type of instability with high energy efficiency ratios. The present in-water towing tank experiments comprise 1DoF vibrating systems at Re ranging from 2 × 103 to 4.8 × 104. The results show that the upstream wake generally enhances the system efficiency and the mechanical work done by the...