This paper presents a theoretical framework for the energy and exergy evaluation of basic as well three modified Organic Rankine Cycles (ORCs). The ORCs considered incorporating turbine bleeding, regeneration both them. results demonstrate that evaporator has major contribution in destruction which is improved by increase its pressure. confirm integrated ORC with bleeding highest thermal efficiencies (22.8% 35.5%) lowest loss (42.2 kW) due to decrease cold utility demand high power generation.

This paper describes the development of a model to comprehensively assess sustainability impacts producing lignocellulosic bioethanol from various types municipal organic wastes (MOWs) in Iceland: and paperboard, timber wood garden waste. The tool integrates significant economic, energy, environmental technical aspects analyse rank twelve systems using most common pretreatment technologies: dilute acid, alkali, hot water steam explosion. results show that among MOWs, paperboard have higher...

Biomass is one of the most widely available energy sources and gasification a thermal conversion process where biomass transformed into fuel gas with gasifying agent. In this paper by using ASPEN Plus, new steady state simulation model for down draft waste was developed. The that stoichiometric equilibrium-based proposed to be used optimization gasifier performance. Prediction accuracy validated comparing experimental modeling results in other literature. Then comparative analysis...

Biomass pyrolysis is considered as a thermochemical conversion system that performed under oxygen-depleted conditions. A large body of literature exists in which thermodynamic equilibrium (TE) and kinetic approaches have been applied to predict products. However, the reliability, accuracy predictive power both modeling an area concern. To address these concerns, this paper, two new simulation models based on TE are developed using Aspen Plus, analyze performance each approach. Subsequently,...

This study develops a new simulation model by ASPEN Plus for gasification integrated with water-gas shift reactors and product recovery unit hydrogen production. Timber wood waste (T&WW) as lignocellulosic biomass was also considered the input feedstock to system. Then, is applied investigate effect of two agents air mixture air-steam under different operating conditions temperature steam ratio (SBR). The results reveal that produced through at highest points all studied temperatures it...

The disposal of wood waste at facilities for incineration in Sweden is the only applied management practice today. Energy production from biomass has gained attention its potential to recover energy and reduce greenhouse gas emissions. However, besides being a valuable source generation, can be effectively recycled into new products. Specifically, recycling particleboard widely practiced method Europe, while benefits have not been explored country so far. objective this study assess...

In order to accurately anticipate the proficiency of downdraft biomass gasification linked with a water–gas shift unit produce biohydrogen, model based on an artificial neural network (ANN) approach is established estimate specific mass flow rate biohydrogen output plant different types biomasses and diverse operating parameters. The factors considered as inputs models are elemental proximate analysis compositions well structure includes one layer for input, hidden layer. One thousand eight...

Wood and forestry residues are usually processed as wastes, but they can be recovered to produce electrical thermal energy through processes of thermochemical conversion gasification. This study proposes an equilibrium simulation model developed by ASPEN Plus investigate the performance 28 woody biomass residues’ (WB&FR) gasification in a downdraft gasifier linked with power generation unit. The case assesses Iceland from one ton each feedstock. results for WB&FR alternatives show...

Electromobility is the future main system for Swedish road transport that encourage sustainable urban transportation. However, emission impacts of applying electric vehicles (EVs) are currently controversial. This study evaluates and compares internal combustion engine (ICEVs) refer to both petrol diesel-based engines BEVs, focusing on environmental energy impacts. The entire life cycle production, fuel production use considered emissions due various electricity generation alternatives will...

In order to decrease spreading of Coronavirus disease 2019 (COVID-19) over the world, activity many industries has declined, several flights were cancelled and so people staying home that made drop in fuel consumption road transport. As industries, transport networks businesses have closed down, it brought a sudden carbon emissions. Hence, this paper, simple estimation model is developed by using some excel features assess reduced CO2 emissions March 2020. Then indicator calculated for 3...

Biochar can be useful to overcome several environmental challenges in different sectors of energy, industry, and agriculture. However, there are currently only a limited number studies with the employment biochar for various applications their impacts. This study develops an LCA framework evaluate climate impacts production its soil enhancement as substitute coal-based fuels steel industries then compares it conventional biomass usage energy Sweden, Italy, Poland. Various pyrolysis operating...

This study presents a new simulation model developed with ASPEN Plus of waste biomass gasification integrated syngas fermentation and product recovery units for bioethanol production from garden as lignocellulosic biomass. The includes three modules: gasification, fermentation, ethanol recovery. A parametric analysis is carried out to investigate the effect temperature (500–1500 °C) equivalence ratio (0.2–0.6) on performance yield. results reveal that, efficient high production, operating...

<div data-canvas-width="75.53283108244308">A simulation model for integrated waste biomass gasification with cogeneration heat and power has been developed using Aspen Plus. The can be used as a predictive tool optimization of the gasifier performance. system modeled in four stages. Firstly, moisture content is reduced. Secondly decomposed into its elements by specifying yield distribution. Then reactions have Gibbs free energy minimization approach. Finally, generated through internal...

Energy recovery from waste biomass can have significant impacts on the most pressing development challenges of rural poverty and environmental damages. In this paper, a techno-economic analysis is carried out for electricity generation by using timber wood (T & WW) gasification in Iceland. Different expenses were considered, like capital, installation, engineering, operation maintenance costs interest rate investment. Regarding to revenues, they come sale fee paid Icelandic municipalities...

This study presents a reliable model using Aspen Plus process simulator capable of performing sensitivity analysis the downdraft gasification linked to hydrogen production unit. Effects key factors, including temperature and steam biomass ratio (SBR) on syngas composition, calorific value are discussed then optimal conditions for maximum extracted. The is validated by experimental other modeling data found be in great agreement. results obtained only air as agent indicate that higher...