Seyed Ehsan Hosseini

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• Professor
• Professor at Arkansas Tech University

The purpose of this experimental and numerical investigation is to analyze the effects of burner configuration on the characteristics of biogas flameless combustion. In the four non-premixed studied burners, the inlet jet of the fuel located at the center of the burner, surrounded by four oxidizer parallel jets in the coaxial burners and four perpe...

This study proposed and evaluated the new hydrogen production design of the Gas Turbine-Steam Methane Reforming (GT-SMR) hybrid process. The superheated byproduct gas from the GT system is utilized as a combustion agent for the boiler of the SMR system, minimizing the required heat energy input for hydrogen production. The overall energy consumptio...

Background Understanding the health consequences associated with exposure to risk factors is necessary to inform public health policy and practice. To systematically quantify the contributions of risk factor exposures to specific health outcomes, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 aims to provide comprehensiv...

“Hydrogen Diplomacy” provides a comprehensive examination of the global transition towards hydrogen as a pivotal energy carrier, emphasizing its urgency amidst environmental crises stemming from fossil fuel usage. The book delves into the potential of hydrogen as a clean and sustainable alternative, elucidating its benefits while navigating the cha...

This presentation evaluates the performance of a gas turbine (GT) system coupled with a flameless boiler for steam generation for hydrogen production in a solid oxide steam electrolyzer (SOSE). In this design, the GT exhaust gases are directed to the flameless boiler, in which diluted and preheated exhaust gases are applied as an oxidizer. Using a...

Hydrogen fuel has the potential to become a significant contributor to the world’s energy mix in the coming years. Hydrogen is a clean and renewable energy carrier that can be used in a variety of applications, from transportation to power generation. Hydrogen fuel produces zero emissions when used as a fuel source, and the only byproduct of hydrog...

The world is searching to find alternatives to fossil fuels. The main criteria for an ideal future fuel are cleanliness, inexhaustibility, and independence from foreign control. Hydrogen fuel has indicated all these characteristics and is promoted worldwide as an environmentally friendly replacement for fossil fuels in the industrial and transporta...

There has been a growing demand to develop new energy conversion devices with high efficiency and very low emissions for both power and propulsion applications in response to the net zero-carbon emission targets by 2050. Among these technologies, solid oxide fuel cells (SOFCs) have received attention due to their high electrical efficiency (above 6...

In February 2022, the U.S. Department of Energy (DOE) established a $6 billion program to support America's clean nuclear energy infrastructure. Before that, in the fourth quarter of 2021, the DOE dedicated $20 million in funding to the technologies that produce clean hydrogen from nuclear power. This approach reinforces producing hydrogen from zer...

In December 2021, the US Department of Energy (DoE) unveiled the Office of Clean Energy Demonstrations with $21.5bn in federal funding to deploy the advanced green technologies. The most significant portion of the budget, $9.5bn, has been dedicated to renewable hydrogen to commercialize innovative technologies and establish four regional hubs and a...

The world's progress towards net-zero ambitions will bring down fossil fuel utilization and imports over time. However, crises such as COVID-19 and the Russia-Ukraine conflict have raised questions about the reliability of non-renewables and what actions could be taken by policymakers to immediately mitigate reliance on fossil fuels for vulnerable...

Due to the impressive growth in digital coins trading, most cryptocurrencies' market cap has increased drastically. Therefore, more people are engaged in the mining process, causing a significant increase in electrical power consumption. To make cryptocurrency technology sustainable, using renewables such as photovoltaic solar power, wind energy, t...

Gasification and combustion processing is deemed reliable and feasible methods in response to concerns about landfilling – a traditional treatment due to rapid growth in disposal capacity and pollution. In gasification and combustion processing, various processes are integrated with different configurations to carry out energy conversion of the the...

Greenhouse gas (GHG) emissions released from human activities are responsible for the unprecedented increase in global temperature in recent decades. Burning fossil fuels in the end-use sectors releases the majority of GHG emissions, and global warming, as well as climate change, is among the main consequences of nonrenewable fuels combustion. Furt...

This study determines the effect of flow aerodynamics modification on the combustion characteristics of a new miniature combustor. The n-heptane was injected into the combustor at a flow rate of 1.0 ml/min to 2.5 ml/min, and the airflow rate varied between 7.0 l/min and 20.0 l/min at a successive fuel flow rate to maintain the equivalence ratio. Th...

In this paper, various modern power engines developed by the American, Japanese, and European automobile industries will be compared. Specific data, including the efficiency, emission rate of nitrogen oxides (NOx), fuel consumption, and electronic vehicle technology, will be developed. Since the first invention of the automobile engine in the late...

Solid oxide steam electrolyzer (SOSE) uses both electricity and steam to produce hydrogen in a large scale. Considering losses in the electrical power transmission and significant amounts of fuel for steam making, it is affordable to integrate the gas turbine (GT) system to the SOSE in the power plant to generate hybrid electrical power-hydrogen fu...

As an electrochemical device, a fuel cell (FC) directly converts the chemical energy of a fuel into electrical power. Compared to the multi-step combustion process (converting chemical energy of the fuel to thermal to mechanical and consequently to electrical power), the one step nature of FCs (from chemical to electrical energy) offers several not...

In this paper, the performance of a solar gas turbine (SGT) system integrated to a high temperature electrolyzer (HTE) to generate hybrid electrical power and hydrogen fuel is analyzed. The idea behind this design is to mitigate the losses in the electrical power transmission and use the enthalpy of exhaust gases released from the gas turbine (GT)...

The outbreak of the novel COVID-19 has dominated the world stage, and its consequences, both direct and indirect, are expected to prove to be even more pervasive over time. The COVID-19 pandemic has struck the renewable energy manufacturing facilities, supply chains, and companies and slowed down the transition to the sustainable energy world. The...

In this paper, design and performance analysis of a biogas (60%CH4 + 40%CO2) fueled gas turbine (GT) power generation system integrated with a flameless boiler for steam generation for hydrogen production in a solid oxide steam electrolyzer (SOSE) is reported. In this design, the exhaust gases from GT is conducted to a flameless boiler where dilute...

Optimization of energy system is a favored method to mitigate emission and manage fuel resources. However, optimization results interpretation and optimal point selection is a challenging area, and mostly a subjective decision. In addition, optimization, even with cost objectives, are carried out by technical teams which normally differ from projec...

Solar is one of the most promising energy sources because of the abundance of solar radiation in certain parts of the world. One of the main limiting factors of using traditional photovoltaic cells is that they require a lot of space to generate a significant amount of power. The alternative method, the concentrated photovoltaic (CPV) module, does...

Miniature liquid fuel combustor in power generation requires confining combustion in the combustor chamber. However, this process faces substantial challenges that include higher heat loss, poor fuel vaporization rate, and low mixing residence time. In response to this challenge, a new method is proposed by introducing novel miniature combustor uti...

Hydrogen has the potential to be the sustainable fuel of the future, decrease the global dependence on fossil fuel resources, and lower the pollutant emissions from the transportation industry. In this study, recent development in hydrogen-based transportation engines is reviewed to scrutinize the feasibility of using hydrogen as a major fuel of fu...

Renewable and sustainable energy has an evolving story as the ongoing trade war in the word is influencing crude oil prices. Moreover, the global warming is an inevitable consequence of the worldwide increasing rate of fossil fuel utilization which has persuaded the governments to invest on the clean and sustainable energy resources. In recent year...

Solar energy is going to play a crucial role in the future energy scenario of the world which conducts interests to solar-to-hydrogen as a means of achieving a clean energy carrier. Hydrogen, is a sustainable energy carrier, capable of substituting fossil fuels, decreasing carbon dioxide (CO2) emission to save the world from global warming. Hydroge...

This paper explores the heat generated by the human body and the capabilities of wearable thermo-electric generators in harvesting the thermal energy for practical uses. The wearable thermoelectric generator (WTEG) has shown great potential for use in this field, as such small-scale devices consume little power. While batteries are cheap and reliab...

The hazardous effects of pollutants from conventional fuel vehicles have caused the scientific world to move towards environmentally friendly energy sources. Though we have various renewable energy sources, the perfect one to use as an energy source for vehicles is hydrogen. Like electricity, hydrogen is an energy carrier that has the ability to de...

Combustion-based micro-power generation is a serious candidate for substitution of traditional batteries. As the volume of combustion system decreases to small-scale combustors, ignition and combustion stability are becoming considerable challenges due to short residence time and large heat loss. To overcome these shortages, several experimental in...

This paper presents a multidisciplinary framework for computational design and optimization of coupled offshore wind farm layout and support structure using analytical derivatives. Gradient-based optimization with exact analytical derivatives scales well with large design problems, and it is the preferred approach over gradient-free techniques. We...

In solar city, the demand of electrical energy for municipal utilities, residential sections, and transportation is generated by solar energy whether by centralized solar power plants or distributed rooftop photovoltaic systems. Although, establishment of a perfect solar city requires several fundamental infrastructures, valuable progresses have be...

In small-scale combustors, the ratio of area to the combustor volume increases and hence heat loss from the combustor’s wall is significantly enhanced and flame quenching occurs. To solve this problem, non-premixed vortex flow is employed to stabilize flames in a meso-scale combustion chamber to generate small-scale power or thrust for propulsion s...

This paper investigates the management criteria that can be applied to improve green building performance. The primary purpose of this paper was to quantify the relative importance index (RII) of management of the green building factors and ranked the factors and groups consistent with their relevance level in management criteria. This objective wa...

Biogas energy conversion using flameless combustion method

This paper presents a review of various research investigations on the application of phase change material (PCM) in refrigeration systems. Application of PCMs mostly in vapor compression refrigeration systems refrigeration systems have illustrated significant effects on the performance of the system, compressor on-off cycle and electricity consump...

In this paper, the idea of using flameless combustion in a hybrid solar combustion system is investigated by modeling and thermodynamically analyzing a gas turbine system. In this regard, a gas turbine system coupling with hybrid solar flameless combustion including heliostat solar field, central receiver, flameless combustor and power generation s...

Biogas to fuel is an attractive method to reduce global warming potential of methane emission and providing a renewable source of energy. In this study, exergoeconomic assessment of a biogas-based gas turbine system with preheater is conducted. In the present work, effects of fuel composition on the exergetic and economic performance of a plant are...

Ever-growing construction industries worldwide require energy saving, environmental friendly, inexpensive, and thermally efficient materials. Driven by this demand, we evaluated the thermal performance and economy of a newly developed PCM called local paraffin. These PCMs as potential thermal energy storage (TES) systems were extracted from Iraqi c...

To have an optimum condition for the performance of a combined cycle power generation, using supplementary firing system after gas turbine was investigated by various researchers. Since the temperature of turbine exhaust is higher than auto-ignition temperature of the fuel in optimum condition, using flameless burner is modelled in this paper. Flam...

Genetic algorithm (GA) is widely accepted in energy systems optimization especially multi objective method. In multi objective method, a set of solutions called Pareto front is obtained. Due to random nature of GA, finding a unique and reproducible result is not an easy task for multi objective problems. Here we discuss the solution uniqueness, acc...

Abundant wastewater discharges from palm oil industries in tropical nations being a valuable resource of biodiesel need proper exploration. Research hinted that such wastewater as economical nutrient source or substrate can support the cultivation of microalgae. In this experiment, we have tested the growth and lipid production of five different mi...

In this paper, a thermodynamic modelling of an integrated biogas (60%CH4 + 40%CO2) micro-power generation system for electricity generation is reported. This system involves a gas turbine cycle and organic Rankine cycle (ORC) where the wasted heat of gas turbine cycle is recovered by closed ORC. The net output power of the micro-power generation sy...

This paper proposes a new methodology to provide a flexible optimum design tool for the multi-objective optimization of energy systems. There are many articles published on the optimization of energy systems, which use a multi-objective evolutionary algorithm for different cases. However a general method for optimization results utilization in desi...

This paper presents an experimental investigation of the combustion characteristics of palm methyl ester (PME), also known as palm oil-based biodiesel, in an oil burner system. The performance of conventional diesel fuel (CDF) and various percentages of diesel blended with palm oil-based biodiesel is also studied to evaluate their performance. The...

Phase change materials (PCM) in the construction industry became attractive because of several interesting attributes, such as thermo-physical parameters, open air atmospheric condition usage, cost and the duty structure requirement. Thermal performance optimization of PCMs in terms of proficient storage of a large amount of heat or cold in a finit...

A Computational Fluid Dynamic (CFD) study on hydrogen-air premixed combustion in a micro-combustor is investigated by solving three-dimensional (3D) governing equations. The effects of inlet geometry on the flame temperature, flame stability and micro combustor efficiency under different inlet flow rates and various equivalence ratios were studied...

A developed design and test of lab-scale flameless combustion system called self-preheated flameless combustion (SPFC) is presented in this paper. In SPFC system, the flameless chamber is employed as a heater to preheat oxidizer over the auto-ignition temperature of propane (C3H8). A helical stainless steel pipe (called self-preheating pipe) is ins...

The combustion of effluent biogas from a palm oil mill is not feasible on a large scale because of its low calorific value (LCV). Therefore, the captured biogas is usually flared because of a lack of appropriate combustion technology. However, such biogas could be an excellent source of energy for combined heat and power (CHP) generation in palm oi...

This article gives an overview of the state-of-the-art biomass-based hydrogen production technologies. Various biological and thermochemical processes of biomass are taken into consideration to find the most economical method of hydrogen production. Biohydrogen generated by biophotolysis method, photo-fermentation and dark fermentation is studied w...

The effects of fuel/air inlet diameter as well as air preheating on the flame stability, temperature distribution, pollutant formation, and combustion characteristics of a lab-scaled asymmetric vortex flame have been investigated. A three-dimensional steady-state finite volume solver has been used to solve the governing and energy equations. The so...

In this paper, the effects of biogas hydrogen enrichment on the characteristics of co-flow non-premixed flameless combustion and pollutant formation are developed experimentally and numerically. Biogas (40% CO2 and 60% CH4) is applied in the flameless furnace as a fuel and the combustion stability, temperature uniformity inside the chamber and NOx...

Low calorific value of biogas is one of the most important barriers of biogas development in industrial scale. Since biogas upgrading is complicated and not economic, various characteristics of pure biogas combustion have been experimented in recent years. In this paper, the characteristics of biogas flame structure and emissions in nonpremixed vor...

Biogas released from palm oil mill effluent (POME) could be a source of air pollution, which has illustrated negative effects on the global warming. To protect the environment from toxic emissions and use the energy of POME biogas, POME is conducted to the closed digestion systems and released biogas is captured. Since POME biogas upgrading is a co...

A new design of asymmetric non-premixed meso-scale vortex combustor is introduced in this paper. The flame stability, heat loss from the combustor wall as well as thermal efficiency and pollutant formation are compared in various circumstances such as air/fuel inlet velocity and equivalence ratios. Furthermore, direct photography method is used to...

Hydrogen is one of the most promising energy carriers for the future of the world due to its tremendous capability of pollution reduction. Hydrogen utilization is free of toxic gases formation as well as carbon dioxide (CO2) emission. Hydrogen production can be implemented using a wide variety of resources including fossil fuels, nuclear energy and...

Energy consumption has risen in Malaysia because of developing strategies and increasing rate of population. Depletion of fossil fuel resources, fluctuation in the crude oil prices, and emersion of new environmental problems due to greenhouse gasses effects of fossil fuel combustion have convinced governments to invest in development of power gener...

Today, global energy consumers are addicted to fossil fuels such as natural gas, oil and coal. Although it has been anticipated that fossil fuels will be depleted soon, these fuels are still dominant as the primary source of energy in the world. Recently, many efforts have been done to substitute renewable alternative fuels to reduce dependency on...

Based on the biogas feedstock and its generation cycle, a considerable part of biogas ingradients are noncombustible gases. Low calorific value (LCV) of biogas is one of the most important barriers of biogas development in the combined heat and power (CHP) generation. Biogas purification is usually performed in sensitive utilizations, however modif...

The purpose of this investigation is to analyze combustion characteristics of biogas flameless mode based on clean technology development strategies. A three dimensional (3D) computational fluid dynamic (CFD) study has been performed to illustrate various priorities of biogas flameless combustion compared to the conventional mode. The effects of pr...

Due to industrial development and population growth, global demand for energy has increased enormously. The increased consumption of primary sources of energy such as coal, oil and natural gas has exerted a strong influence on the atmospheric environment. Among all of the alternative fuels, hydrogen offers the greatest potential benefits to energy...

Biogas has a great potential to be applied for heat and power generation throughout the world due to its availability from various resources. However, one of the most important barriers of biogas utilization development is its low calorific value. In order to increase the performance of biogas in industrial application, hydrogen enriched biogas cou...

Energy crisis and environmental issues related to fossil fuel consumption have emerged as a concern for scientific societies. Biodiesel has been introduced as an acceptable source of energy to substitute fossil fuels. In general, vegetable oils and their derivatives known as biodiesel have been applied successfully in energy generation purposes. Te...

Palm oil mill effluent (POME) is a by-product of the palm industry and it releases large amounts of greenhouse gases (GHGs). Water systems are also contaminated by POME if it is released into nonstandard ponds or rivers where it endangers the lives of fish and water fowl. In this paper, the environmental bottlenecks faced by palm oil production wer...