The rising demand for food, energy and water amidst depleting supplies and increased environmental degradation is a significant problem in today’s world. The concerted occurrence of climate change, human hostilities, poverty increase in several countries and a pandemic outbreak have all contributed to the global challenge of food insecurity. Sustainable management of the three essential resources requires

Autonomous, hybrid renewable energy systems (HRES) are increasingly being deployed in geographically challenging terrains, often lacking adequate resilience planning for natural disasters. An assessment framework is developed to evaluate sustainable HRES design for remote off-grid application, ensuring its operability under an extreme event, i.e. its ability to absorb the shock event and continue operating

Energy consumption in different sectors in Pakistan has risen from the last two decades, which has brought immerse ecological risk from carbon dioxide (CO2) emission. This research tried to examine potential substitutability of energy (fossil fuel and electricity) and non-energy (labor and capital) input factors by applying the trans-log production method during 1980–2018. We applied Ridge regression

This study analyzes the impact of renewable electricity consumption on economic growth for the panel of 10 newly industrialized countries from 1990 to 2015. For this, panel unit root tests, panel heterogeneous co-integration method, panel Fully Modified Ordinary Least Square and the Granger causality method are employed. The primary outcomes of this study are as follows: (1) panel unit root test and

In this study, the advantages of the ORC were used to improve overall performance of a simple gas turbine (GT) located in a wood production facility. In addition to ORC, a steam boiler (SB) is also coupled with the GT to improve overall performance and to produce needed steam. During study, benzene, cyclohexane, hexane, R11, R123, R600, R601 and toluene were used as working fluid. During parametric

Nowadays, predicting solar radiation is widely increased to maximize the efficiency of solar systems globally. Meteorological data from metrological stations is used to implement the intelligent prediction systems. Unfortunately, uncertainty in the used solar variables and the selected prediction models would increase the difficulties in using intelligent models to predict solar radiation. Several

Savonius turbine is a prominent drag based turbine used for harnessing wind or water power. It can be customized for run-off river stream locations having ultra-low head (<1 m) and low water velocities, for the turbine is self-starting and requires low starting torque. However, considering its low efficiency, an improved blade design of the turbine is needed to enhance its performance. If a Savonius

Ecological corridor is an important means to maintain the stability of watershed ecosystem and enhance the ecological sustainability of watershed. The layout of ecological corridor can reduce the harm of landscape fragmentation caused by the rapid development of cities, especially in the arid area of Loess Plateau, which is of great significance to strengthen the connectivity of ecological patches

Water hammer is a transient flow phenomenon generated in a pipeline, when there is a sudden change in velocity, due to the closing of valves. This is particularly important for plants based on complicated hydraulic circuits and piping, to avoid malfunctioning in the urban sewer network. In this study, the effect of a set of parameters: length, diameter and material of the pipe with and without surge

An aqueous Aluminium Hydroxide [Al(OH)3] decorated Graphitic Carbon Nitride [g-C3N4] nanowires based hybrid nanofluid has been fabricated using the two-step method. Where, both the nanoparticles are synthesized separately and dispersed throughout the base fluid with the aid of ultrasonic cavitation technique. The hybrid nanofluid photocatalytic performance has been compared with Al(OH)3 – (g-C3N4)

This paper describes a comprehensive analysis of a hybrid energy system (HES) when satisfying the load demand of an off-grid, rural and hilly community in Bangladesh. Different combinations of HES, such as PV/Pump-hydro storage (PHS), Diesel/PHS, and PV/Diesel/Battery, are formulated, analysed, and compared using hybrid optimization of multiple energy resources (HOMER) software. The system configurations

The rise of Internet of Things (IoT) concept founded the realization of a smart city. Energy management has lately turn out to be a vital concern for the services of a smart city as IoT devices consume massive energy constantly. This concern needs to be addressed to devise a practical method. Efficient energy utilization aims to promise smart city sustainability. Moreover, IoT devices produce enormous

The fuel consumption cost of open-pit mine trucks accounts for up to 22% of the total cost. However, research on the fuel consumption of mine trucks has been hindered by low monitoring accuracy and unclear fuel consumption patterns. Based on the fuel consumption per cycle of mine trucks, this study analysed the fuel consumption of 5179 transportation cycles with three types of mine trucks. First, a

As a result of increased global emission, higher fuel price, and limited natural resources, the need of alternative fuels is highly focused by various researchers. Use of edible oil in internal combustion (IC) engine is finding its place to replace the use of conventional fuel. In the present experimental investigation, corn oil methyl ester (COME) and its blends of biodiesel fueled in diesel engine

This study analyzed the effect of climatic variation on PV systems' performance and economic viability in four climatic zones of Nigeria (warm desert, warm semi-arid, tropical savanna, and monsoon climate). Performance ratio was found to be high in monsoon and tropical savanna climate due to the influence of cool-moist air from the ocean, low temperature, and increased cloud cover in the region. Meanwhile

Commercial and residential buildings consume 20% of the world's total energy usage and forecasts indicate a growing trend of 1.5% per year by 2040. Share of energy consumption in the heating ventilation and air conditioning (HVAC) reached to 40–70% of the building energy usage. Reduction in the heat exchange between the interior and exterior spaces is an energy-efficient technique for lowering HVAC

An electrical power plant is an essential part of urban architecture; however, ambient humidity has significant influence on the monitoring procedures for industrial gas turbines that serve as the heart of a power plant’s operation. Therefore, the effects of continuous wet weather on the microclimate environment of electrical power plants were investigated. A strong linear relationship appeared in

Typically, there are a lot of challenges to be faced with providing better performance and energy optimization in the Internet of Things (IoT) in a smart city. In IoT and wireless sensor networks (WSNs), the nodes are generally grouped as clusters, which lead to forming Cluster Head (CH) that collects data from all other nodes and explicitly communicates with Base Station. In this paper, numerous objectives

Energy deficiency in different parts of the world is not only adversely affecting the quality of life of individuals but is also compromising the overall development of these areas. Pakistan is one of the energy-deficient countries of the world having high energy demand but less energy production, resulting in a consequent energy deficit of 2500 MW (Mega-Watt). Considering which, the current environmental

The thermal properties of particles are important parameters that directly affect the heat storage performance of the solid particle heat storage bed. This paper reports the effects of solid particle thermal conductivity on heat storage performance of heat storage bed. A three-dimensional steady-state heat transfer model of heat storage bed with a single vacancy was established using ANSYS 19.0. The

Worldwide attempts are being made to harness wasted heat or optimize the power systems by achieving the theoretical efficiency of the supercritical carbon dioxide (S-CO2) power cycle. The heterogeneity and variable quality of scholarly data may challenge researchers of the field (S-CO2 power cycle) to survey all of the available information. This study is focused on scientometric analysis to provide

Savonius wind turbine is an interesting type of vertical axis wind turbines (VAWTs) which has a low cost of manufacturing, however, this turbine has a relatively low power output compared to the other types of VAWTs. Further study is required to enhance its performance to match the high demand of the power generation in small-scale applications. The main objective of the current study is to enhance

The concept of Demand Side Management (DSM) is a popular topic in power system that provides an opportunity for grid operators to improve power grid’s stability and efficiency. However, most of the DSM techniques does not consider user satisfaction. This work uses the load data collected from a department in an institution located in Southern India based on user satisfaction to manage the load through

Electricity production via renewable energies is considered to be a suitable solution in the short and long term, since fossil fuels are doomed to exhaustion. The aim of this study is to conduct energy, economic and environmental (3E) analysis for an autonomous hybrid renewable energy system (HRES) composed of a wind and solar photovoltaic systems. In this article, HOMER Pro software is adopted for

Among different technologies, the Wave Energy Conversion (WEC) represents an efficient, clean and sustainable source for generating electricity, however creating distributed generation plants with Wave Energy Potential (WEP) necessitates extremely careful estimation. Therefore, a new model using five components of Fourier series has been presented for WEP estimation. The model helps reduce the imprecision

The customary single-arc blade applied in the multi-blade centrifugal ventilating fan for building ventilation is ordinary in shape and hard to meet the design requirements of the pertinent parameters. The article used the modified Hicks-Henne function (suitable for blade design with multi-arc and complex curve blades) to parametrically design the blades of multi-blade centrifugal fan to improve its

A numerical assessment is conducted on a premixed axisymmetric two-dimensional porous radiant burner. Equations of continuity, momentum, energy, turbulence, radiation, progress variable, and mixture fraction are solved using a structured grid with a high degree of accuracy. A good agreement between the results and the available data are observed. The flame cannot pass through the thin porous medium

The traditional manufacturing industry has low utilization rate of resources, in order to reduce the pressure it brings to environmental sustainable development. To explore the application of carbon benefit in improving resource efficiency level. This paper starts from the perspective of product feature design, and develops a carbon benefit model of feature design scheme from the perspectives of time

Wind-farm optimization is a hot topic in the field of wind energy. Most of the related researches maximize the power output by optimizing turbine locations and hub-heights. Yaw angle can change the wind direction behind turbines and weaken the wake effects, which has seldom been examined for the wind-farm optimization. The relative effectiveness to maximize the power output by varying the turbine layout

The basic aim of this research work is to investigate the environmental, technical, and financial viability of evacuated tube type solar water heating (SWH) systems at different geographical locations across seven cities of India. The RETScreen SWH project model is used to evaluate the energy production and savings, solar fraction, costs, greenhouse gas (GHG) emission reductions, financial viability

In this paper, we present a newly developed integrated solar energy based system with a supercritical geothermal, a Brayton cycle gas turbine power plant with heat recovery system, and a thermochemical copper chlorine (Cu-Cl) hydrogen production cycle. The integrated system is capable of producing multiple useful outputs. Solar and geothermal energy sources are utilized with a Brayton cycle with heat

The increasing fossil energy demand and carbon emissions pose a significant challenge to the world. According to climate adaptability design, the balcony is open type in Changsha. The study evaluates the energy-saving potential and the economic and environmental feasibility of installing the balcony in living rooms, and considering the effect of balcony orientations and air conditioning types. The

Individuals usually present highly stable differences in household energy conservation intentions. Personality traits are a possible explanation for such differences. However, the mechanism through which personality traits affect household energy conservation intentions is still unclear. This research aims to explore the roles of personality traits in household energy conservation intentions by connecting

The onshore wind energy has been growing rapidly in recent years and has reached a share of 9% in the Brazilian energy matrix. Although there is no offshore wind installation in Brazil, research has shown a large and unexplored energy potential in the country. The aim of this study is to perform an economic analysis for offshore wind projects in the Brazilian sea through the CAPEX and LCOE indicators

Due to the damaging environmental impacts resulting from direct entry of mineral lubricants into the environment, the use of bio-lubricants as a sustainable and renewable alternative to mineral lubricants is necessary; therefore, bio-based lubricants play an important role in overcoming existing challenges and reducing energy consumption. The present research has been conducted to intensity the production

Implementing automatic fault diagnostic tools will contribute to reducing the operations and maintenance costs and duration associated with PV systems. This paper presents a fuzzy diagnostic algorithm relying on the electrical parameters classification which values are extracted from experimental I–V curve measurements of crystalline modules. It is dedicated to the identification of common faults in

Industrial wastewater has imposed increasing threats due to the large concentrations of various toxic and hazardous contaminants. Amongst various processes to treat wastewater, adsorption is widely being adopted due to its simplicity, good treatment efficiency, availability of a wide range of adsorbents, cost-efficiency, etc. Chitosan, the second most abundant biopolymer is well-known due to its unique

This paper reports an experimental investigation focused on nano-enhanced phase change materials (NEPCM). Two different types of phase change materials (RT28 HC and RT26) with relatively low thermal conductivity and reasonable volumetric specific heat capacity were utilized as the base for NEPCMs with four types of nanoparticles (CuO, ZnO, Ag, and graphene). The novel four-phase preparation procedure

The energy supply concerns are increased with the increment of demand, environmental emission, and global warming. As an alternative to fossil fuels, the development of renewable energy technologies is one of the most important strategies. Thus, governments around the world have adopted policies to expand the share of clean energy with a view to the greenhouse gas (GHG) emissions reduction and many

The selection of suitable sites is a critical step for the successful development of offshore wind power. This study aims to establish an assessment framework to select the optimal alternative under multiple conflicting criteria. A hybrid model that combines the grey decision-making trial-and-evaluation laboratory-based analytic network process (grey DANP) and probability-based grey relational analysis

This novel study compares the drilling of Inconel 718 using two cryogenic cutting environments i.e., liquid carbon dioxide (LCO2) and liquid nitrogen (LN2) based on parameters like tool wear, power consumption, and surface roughness; and Life Cycle Assessment (LCA) results at three cutting speeds. As compared to LN2, 25–300% more holes were drilled using LCO2 due to restricted growth of wear mechanisms

Horticultural inputs have various potential environmental impacts which can be simultaneously evaluated by input–output energy methods. This technique is considered as an appropriate evaluation method to analyze ecosystems through recognizing, quantifying, and appraising resources depleted and released within the environment. This study aims to apply the thermodynamic approach to maximize the decision-making

The pseudo-two dimensional electrochemical model is capable of accurately predicting the transient behavior of the batteries. However, since the numerical complexity of this model prohibits its application in real-time simulations, many efforts have been made toward reducing the model order to develop fast and reliable battery modeling methods. In this paper, a computationally efficient electrochemical-based

South Africa has developed one of the most successful renewable energy development programs in the world. However, the establishment of a South African solar Photovoltaic (PV) manufacturing localisation agenda has fallen behind. This study assesses the financial feasibility for local manufacturing of solar panels in South Africa using the Generally Accepted Accounting Principles (GAAP) method to determine

Worldwide, about 3 billion people, mainly located in rural areas, do not have access to clean cooking, due to lack of electricity access, low availability and affordability of clean cooking technologies. Most clean cookstoves are claimed to be energy-efficient and cost-effective, but there is a lack of independent comparative analysis with different food types and different cookstoves. This paper assesses

Short-term wind speed forecasting is crucial to enhance the operational efficiency and increase the economic benefit of wind power generation systems. A substantial number of studies were conducted to enhance wind speed forecasting. Combined models are increasingly being preferred, as they always yield better results. However, the current combined models either do not fully consider the different characteristics

Intermittent behavior of renewable energy triggered researchers for using energy storage systems to provide continues operation of renewable-based energy systems. In the current study, an integrated energy system including compressed air energy storage, Rankine cycle, Proton Exchange Membrane (PEM) fuel cell (FC), and thermoelectric generator (TEG) modules are investigated to introduce a new system

In agricultural greenhouses, employment of energy-saving strategies along with alternative energy sources has been identified as a potential solution to address the intensive energy consumption of these cultivation facilities. This study investigates the integration of renewable energy technologies, including solar thermal, solar photovoltaic (PV) and photovoltaic-thermal (PVT), geothermal, and biomass

Trombe wall can absorb solar energy and provide heat for buildings passively. To improve its heating performances, an improved Trombe wall was proposed and experimentally investigated in our previous study. To better understand the improved Trombe wall, a numerical study on investigating its heating characteristics was carried out in this paper. Overall, the improved Trombe wall increased the average

Lithium-sulfur batteries due to high theoretical specific capacity have attracted extensive attention for many years. In this paper, we obtain a type of KOH activated sucrose carbonization coated V2O5 as sulfur immobilizers. X-ray diffraction and Raman spectrum tests illustrate that after carbon coating and sulfur loading, the V2O5 has been transformed into low valence vanadium oxide (VO2) and carbon

As summarized in ASHRAE project RP-1312, an air handling unit (AHU) might suffer from 31 types of faults. Among them, 11 types of faults are of the most serious. Due to the limitation of initial cost, AHUs are always equipped with a limited amount of sensors that are vital for the purpose of automatic control. The diagnostic information is very poor. Therefore, it is challenging to isolate these faults