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    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) Almutairi, K ; 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... 

    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) Almutairi, K ; 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... 

    A thorough analysis of potential geothermal project locations in Afghanistan

    , Article Sustainability (Switzerland) ; Volume 12, Issue 20 , 12 October , 2020 , Pages 1-17 Mostafaeipour, A ; 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... 

    A review of ignition delay and combustion characteristics of biodiesel fueled diesel engine

    , Article Applied Mechanics and Materials ; Volume 390 , 2013 , Pages 333-337 ; 16609336 (ISSN) ; 9783037858332 (ISBN) Qate, M ; Pourabdian, M ; Javareshkian, A ; Farzbod, A ; Sharif University of Technology
    2013
    Abstract
    Increasing rate of demanding biodiesel as alternative energy resource, persuade researchers to investigate engine performance of biodiesel-fueled engines, which are highly influenced by ignition delay (ID) and combustion characteristics of such a fuel. This review article introduces a literature review on ignition delay (ID) and combustion characteristics of diesel engine fueled with biodiesel. Slightly difference between combustion characteristics of bio fueled engine and petroleum diesel one recognized as result of carried out investigations. Early start of combustion (SOC) and shorter ID of biodiesel comparing to diesel is reported by most of investigations. Lower compressibility, higher... 

    Formulating directional industry strategies for renewable energies in developing countries: The case study of Iran's wind turbine industry

    , Article Renewable Energy ; Volume 39, Issue 1 , 2012 , Pages 299-306 ; 09601481 (ISSN) Bagheri Moghaddam, N ; Mousavi, S. M ; Moallemi, E. A ; Nasiri, M ; Sharif University of Technology
    2012
    Abstract
    This study seeks a method for formulating directional strategy of wind turbine industry in Iran. To this end, by initially evaluating various economic viewpoints concerning the development of industries, the necessity of government intervention is recognized. By defining the concepts of national industry policy, firm technology strategy, and national technology strategy, the role of directional industry strategy is then made clear. Furthermore, the six assumptions of emphasis on formulating strategy (rather than on formulating policy), emphasis on formulating directional strategy, model's prescriptivism, emphasis on formulating the strategy at the level of industry, Iran's being a developing... 

    Implementing conceptual model using renewable energies in rural area of Iran

    , Article Information Processing in Agriculture ; Volume 4, Issue 3 , 2017 , Pages 228-240 ; 22143173 (ISSN) Karami Dehkordi, M ; Kohestani, H ; Yadavar, H ; Roshandel, R ; Karbasioun, M ; Sharif University of Technology
    Abstract
    In a glance, more than three billion people live in the rural areas of low and middle income countries. In most cases, rural households have many unmet energy needs including cooking, lighting, heating, transportation and telecommunication needs. The main goal of this study is Implementing Conceptual Model Using Renewable Energies in Rural Area of Iran. In this study, the Weibull and Angestrom distribution methods were used to assess the potential of wind and solar energy range in Chaharmahal va Bakhtiari province of Iran (The Case study). After determining the values calculated based on meteorological stations' data, the IDW interpolation method in GIS software was used for the entire... 

    Model of sustainable development of energy system, case of Hamedan

    , Article Energy Policy ; Volume 104 , 2017 , Pages 66-79 ; 03014215 (ISSN) Sahabmanesh, A ; Saboohi, Y ; Sharif University of Technology
    Elsevier Ltd  2017
    Abstract
    Sustainable economic growth and improvement of the social welfare depend upon the sufficient supply of energy resources, while the utilization of energy resources is one of the main factors of environmental degradation. This research is involved with development of a sustainable energy system model and a new method for sustainability assessment. This model represents the flow of energy from primary resources through processing, conversion, and end-use technologies in an optimization framework where the useful energy demand in various social and economic sectors is met. The impact of energy supply and consumption chain on the environment at each level of energy system is also embedded in the... 

    Multi-objective optimization for sustainable development of the power sector: An economic, environmental, and social analysis of Iran

    , Article Energy ; Volume 161 , 2018 , Pages 493-507 ; 03605442 (ISSN) Atabaki, M. S ; Aryanpur, V ; Sharif University of Technology
    Elsevier Ltd  2018
    Abstract
    This paper aims to analyze Iran's long-term power sector development from economic, environmental, social, and sustainable perspectives. For this purpose, a linear programming model is developed, which includes three objective functions: minimization of costs, minimization of CO2 emissions, and maximization of created jobs. To provide a sustainable plan, analytical hierarchy process is employed to allocate expert-based weights to the objective functions. Moreover, to support the decision-makers, Pareto-optimal alternatives are explored by varying the weights of objectives. The multi-objective model is solved by applying a weighted method based on fuzzy membership functions. The results show... 

    The influence of public R&D and knowledge spillovers on the development of renewable energy sources: The case of the Nordic countries

    , Article Technological Forecasting and Social Change ; Volume 146 , 2019 , Pages 450-463 ; 00401625 (ISSN) Miremadi, I ; Saboohi, Y ; Arasti, M ; Sharif University of Technology
    Elsevier Inc  2019
    Abstract
    Energy innovation is a key requirement to limit global warming and tackle climate change in the years to come. A better understanding of the public R&D mechanism is likely to improve allocation of resources for energy innovation. Thus, the present paper evaluates the impacts of public R&D and knowledge spillovers on the development of renewable energy sources. To achieve this goal, knowledge flow has been modeled as a function of public R&D expenditures, cumulative knowledge stocks and knowledge spillovers. To show the application of the model, the Nordic countries as one of the pioneers in renewable technologies have been chosen. Results show the cumulative knowledge stock will increase to... 

    A review of recent advances in solar cooking technology

    , Article Renewable Energy ; Volume 140 , 2019 , Pages 419-435 ; 09601481 (ISSN) Aramesh, M ; Ghalebani, M ; Kasaeian, A ; Zamani, H ; Lorenzini, G ; Mahian, O ; Wongwises, S ; Sharif University of Technology
    Elsevier Ltd  2019
    Abstract
    One of the primary factors affecting the amount of worldwide energy consumption and greenhouse gas emissions is cooking. Solar cooking is an appropriate solution because it is both inexpensive and expandable. To illustrate modern advancements and the current status of solar cooking technology, this paper presents a review of recent experimental and analytical socioeconomic studies on solar cookers. The experimental studies have been divided into three categories based on different solar cooker structures: (i) box types, (ii) concentrating types, and (iii) panel types. Next, different designs are investigated according to their direct or indirect heat transfer modes and optional equipment for... 

    Experimental analysis of a cooling system effect on photovoltaic panels' efficiency and its preheating water production

    , Article Renewable Energy ; 2019 , Pages 1362-1368 ; 09601481 (ISSN) Fakouriyan, S ; Saboohi, Y ; Fathi, A ; Sharif University of Technology
    Elsevier Ltd  2019
    Abstract
    This paper addresses a low complexity and high efficient cooling system applicable on photovoltaic (PV) system leading to enhance electrical efficiency and provide preheated water. The developed system consists of a photovoltaic panel, a cooling water system establishing a uniform surface temperature, and a solar water heater. According to the proposed system characteristics, the setup is constructed based on a single mono-crystalline solar panel to absorb more solar radiation intensity and generate more electrical energy per area in compare to a poly-crystalline panel. The preheated water produced by absorbed heat from the photovoltaic is conducted to a solar water heater to satisfy... 

    Risk-aware stochastic bidding strategy of renewable micro-grids in day-ahead and real-time markets

    , Article Energy ; Volume 171 , 2019 , Pages 689-700 ; 03605442 (ISSN) Fazlalipour, P ; Ehsan, M ; Mohammadi Ivatloo, B ; Sharif University of Technology
    Elsevier Ltd  2019
    Abstract
    A comprehensive optimal bidding strategy model has been developed for renewable micro-grids to take part in day-ahead (energy and reserve) and real-time markets considering uncertainties. A two-stage stochastic programming method has been employed to integrate the uncertainties into the problem. Moreover, the Latin hypercube sampling method has been proposed to generate the wind speed, solar irradiance, and load realizations via Weibull, Beta, and normal probability density functions, respectively. In addition, a hybrid fast forward/backward scenario reduction technique has been applied to reduce the large number of scenarios. Furthermore, the risk of participation in the markets has been... 

    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 Milad Mousavian, H ; 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 Rezaei Mirghaed, M ; 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... 

    Marine hydrokinetic energy harvesting performance of diamond and square oscillators in tandem arrangements

    , Article Energy ; Volume 202 , 2020 Tamimi, V ; 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... 

    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) Pourmoosavi, M. A ; 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... 

    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) Kalbasi, R ; 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... 

    Thermal performance analysis of an energy pile with triple helix ground heat exchanger

    , Article Geothermics ; Volume 104 , 2022 ; 03756505 (ISSN) Farajollahi, A. H ; 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... 

    Maximizing the utilization of existing grids for renewable energy integration

    , Article Renewable Energy ; Volume 189 , 2022 , Pages 618-629 ; 09601481 (ISSN) Ranjbar, H ; 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) Hekmat, F ; 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...