simulation of energetic- and exergetic performance of
Exergetic and Exergoeconomic Analysis of Selected Gas
simulation purposes with the Matlab software evaluate and optimize the performance of energy systems [10] Exergoeconomics is a tool used for [18] analyzed the energetic exergetic and thermoeconomic aspects of the Bilkent combined cycle cogeneration plant Cardona and Piacentino [19]
Simulation and High
Oct 29 2010Yesterday's New York Times reported that Chinese high-performance computing researchers have achieved a performance of 2 5 petaflops using their Tianhe-1A supercomputer The Tianhe-1A machine is now the world's most powerful computer 40% faster than the fastest American machine located at Oak Ridge National Laboratory
Modelling and Simulation in Materials Science and
Negligible differences are seen in grain size volume and texture distributions for multilayer simulation of test problems while the quantity of temperature data for these test problems was reduced by four orders of magnitude (from 100s of GB to 10s of ) and the code performance sped up by a factor of around 50
IOP Conference Series: Earth and Environmental Science
Generally the performance of thermal power plants is evaluated through energetic performance criteria based on the first law of thermodynamics However recently the exergetic performance based on the second law of thermodynamics has been found to be a useful method in the design evaluation optimisation and improvement of thermal power plants
An Exergetic Performance Evaluation of Multiple Source
Consequently the energy and exergy loss analysis results show that the COP increases when the exergy loss of the condenser decreases Exergetic performance coefficient is introduced and is applied to the heat pump systems having various heat sources The results imply that the functional forms of the exergetic performance coefficient and first
Simulation: An Approach to Teaching and Learning
Jul 23 2014Simulation refers to the imitation of real-world activities and processes in a safe environment Simulations aim to provide an experience as close to the 'real thing' as possible however a simulated activity has the advantage of allowing learners to 'reset' the scenario and try alternative strategies and approaches
Building performance simulation
Building performance simulation (BPS) is the replication of aspects of building performance using a computer-based mathematical model created on the basis of fundamental physical principles and sound engineering practice The objective of building performance simulation is the quantification of aspects of building performance which are relevant to the design
Solar Dryer Exergetic and Energetic Efficiency Analysis
A drying chamber for dehydration purposes is simulated we model a chamber chimney system coupled to a solar collector as the heat source Using both the Heat Transfer Module and CFD Module of COMSOL Multiphysics software in a 2D geometry we simulate the velocity and temperature field to compare the efficiency and exergy for two different materials and two
Energetic and exergetic performance assessment of solar
Peak energy and exergy outputs energetic and exergetic efficiencies heat loss coefficients cooker quality factors and portability factors have been obtained for each cooking design and the results have been analysed Finally some recommendations have been made to enhance the performance parameters of solar cookers
Exergetic Performance Evaluation and Comparative Study of
Exergetic efficiency (exe) started decreasing after 6000 because of thermal energy thermal energy transfer domination over the pumping power consumption The smooth plate solar air heater is having a low value of exergetic efficiency (exe) for all values of Reynolds number (Re) as compared to the roughened solar air heater duct
Evaluating the Exergetic Performance of the Amine
evaluating energetic efficiency of any process In this work the simulation of the amine treatment unit in a Latin-American refinery was performed in order to apply the exergy analysis tool to identify alternatives of improvement The industrial amine treatment unit was simulated using Aspen plus
Journal of Simulation: Vol 14 No 2
Deterministic simulation and graphical representation of powered material handling vehicle movements to enhance pedestrian safety at the Ford Motor company M Higgins J Ladbrook G Khalwadekar M Osman Pages: 119-129 Published online: 23 Dec 2019
Numerical simulation and exergetic performance assessment
May 01 2012Using both first and second law (energy and exergy) analyses efficiencies were calculated for each simulation while varying the inlet temperature from 267 to 271 K and choosing three flow rates Q = 0 87 l/s 1 74 l/s and 2 61 l/s All simulations were run on a workstation computer with an Intel Xeon processor and 4 GB RAM and most
PERFORMANCE ANALYSIS OF VAPOUR COMPRESSION
performance degradation of evaporator has larger effect on compressor power consumption while the performance degradation of condenser has larger effect on COP of the vapour compression cycle In this paper exergetic approach is used to analysis the performance of theoretical vapour compression refrigeration cycle using R404A R407C and R410A
Liquid Fuel Production from Pyrolysis of Waste Tires
A Master of Science thesis in Chemical Engineering by Ryan K Altayeb entitled Liquid Fuel Production from Pyrolysis of Waste Tires: Process Simulation Exergetic Analysis and Life Cycle Assessment submitted in June 2015 Thesis advisor is Dr Taleb Ibrahim thesis co-advisors are Dr Ahmed Aidan and Dr Nabil Abdel Jabbar Soft and hard copy available
Performance and exergetic analysis of vapor compression
Jatinder Gill Jagdev Singh Energetic and exergetic performance analysis of the vapor compression refrigeration system using adaptive neuro-fuzzy inference system approach Experimental Thermal and Fluid Science 10 1016/j expthermflusci 2017 06 003 88 (246-260)
ENERGY AND EXERGETIC PERFORMANCE ANALYSIS OF SOLAR
In the present work an experimental and theoretical investigation of the energetic and exergetic performance of solar pond with circular cross sectionshas been carried out The cross sectional area and depth of solar pond are 4 m2 and 1 5 m respectively which was built at Shahrekord University in Chaharmahal
Simulation and Performance Investigation of a Biomass
May 20 2019Simulation and Performance Investigation of a Biomass Gasification System for Combined Power and Heat Generation potential application to remote communities and to investigate the effects of the main operational parameters on the performance of the system Influence of Various Parameters on Energetic and Exergetic Efficiencies "
Processes
The energetic and the exergetic investigations of a basic cycle and hybrid cycles were conducted in which the following parameters were analyzed: coefficient of performance (COP) exergetic efficiency exergy destruction and irreversibility a steady-state simulation model was built and validated by Aspen Plus to assess the performance of
Electrochemical and Exergetic Modeling of a Combined Heat
Aug 20 2013In this article a combined heat and power (CHP) system using a solid oxide fuel cell and mini gas turbine is introduced Since a fuel cell is the main power generating source in hybrid systems in this investigation complete electrochemical and thermal calculations in the fuel cell are carried out in order to obtain more accurate results
Prediction of energetic and exergetic performance of
Nov 26 2015The analysis involves the determination of effects of generator absorber and evaporator temperatures on the energetic and exergetic performance of these systems The results showed that for T evap = 7 2C T cond = T abs = 37 8C: the COP of the single effect system varied between 0 6 and 0 75 and the maximum value was achieved at
Energetic and Exergetic Performance of a Solar Flat
The evaluation of the performance and characteristics of a solar flat-plate collector (FPC) are reported for domestic and industrial requirements in the existing literature A computer code was developed using matlab to model and evaluate the energetic and exergetic performance of a nanofluid-based FPC for steady-state and laminar conditions
Prediction of Performance of Coal
is essential to know the energetic and exergetic performance of the plants at various loads and understand the effect of critical parameters on them Instant estimation of energetic and exergetic performance of the plant can be predicted by combining theoretical evaluation with an artificial neural network (ANN)
Simulation of Genes and Genomes Forward in Time
GENETIC SIMULATION OF POPULATIONS Simulation of genetic data under plausible evolutionary scenarios is useful to gain insight about the effect of evolutionary and demographic parameters over the sampled genetic data and also to test genetic analysis methods [3 4] In recent years the testing of genetic analysis methods has been extended to include disease
Exergy Balance and Exergetic Efficiency
UNESCO – EOLSS SAMPLE CHAPTERS EXERGY ENERGY SYSTEM ANALYSIS AND OPTIMIZATION – Vol I - Exergy Balance and Exergetic Efficiency - G Tsatsaronis and F Cziesla Encyclopedia of Life Support Systems (EOLSS) For TTj 0 the exergy rate E qj associated with heat transfer is always smaller than the heat transfer rate Q j The ratio
Energetic and exergetic investigation of a parabolic
In this case the maximum exergetic performance of the collector is 45 41% and it is a bit greater than in the other cases It is essential to state that higher mass flow rate leads to higher thermal efficiency but simultaneously to higher pressure losses two contrary factors for the exergetic performance of the collector
Simulation of energetic
The performance of microwave-assisted fluidized bed drying of soybeans was simulated (using a previously validated mathematical model) and analyzed based on the first- and second law of thermodynamics The energy and exergy analysis were carried out for several drying conditions The effects of inlet air temperature microwave power density bed thickness and
Optimizing Exergy Efficiency of Flat Plate Solar
An increase in exergy efficiency of flat plate solar collector leads to a considerable improvement in collector's performance Different parameters influence the performance of collector In this paper Sequential Quadratic Programming (SQP) and Genetic Algorithm (GA) have been employed for optimizing exergy efficiency of the flat plate solar collector






