HYSYS ® : An Introduction to Chemical Engineering Simulation For UTM Degree++ Program (original) (raw)
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Simulation of Ammonia Production using HYSYS Software
Chemical and Process Engineering Research
Now-a-days, Because of cost and time consuming in the design of plants chemical engineer used simulators to simulate design and operation of chemical equipment and plant, which spares a great deal of time and cash.Today, there are many number of the simulators are refreshed and utilized in the simulation of chemical equipment and plant such as ChemCad, ProII, UniSim……..etc. Among of these simulators, Aspen Hysys is the most utilized programming in all ventures because of aiding in two noteworthy fields (design & operation). Simulation of ammonia synthesis process is done on Aspen Hysys V8.8 with steady state mode making some assumptions and using hypothetical reactors ammonia. By fluctuating the distinctive parameters in this simulation environment, the impact of these parameters in the generation rate of the procedure are watched.
1 Comparison of Chemical Process Simulators : Aspen vs . HYSYS
2008
Since 2007, Aspentech provides to universities, a single closed software package, joining two process simulators: Aspen Plus/Dynamics and HYSYS. This work provides a comparison, analysing the integration between them and other products included into the software package. As a case study, it was selected “Ammonia Converter Design”, with available tutorials for both Aspen Plus and HYSYS, from multimedia CD “Using Process Simulators in Chemical Engineering” by Seider, Seader & Lewin. Each of these steady-state simulations has its own thermodynamic model and specific database. Using, for reference, an ammonia synthesis process published on “Ullmann's encyclopedia of industrial chemistry”, it has been realized that none of the thermodynamic models simulate accurately the ammonia condensation. A new Aspen Plus thermodynamic model, published by AspenTech in April/2008, provided good agreement with the reference. But only the next version (V7.0) will allow the implementation of the same...
Aspen-HYSYS Simulation of Natural Gas Processing Plant
In this time of energy crisis low production rate against the increasing demand of the gas production regularly hampers both the domestic and industrial operations since natural gas is the major power source of this country. Unless other power source is developed, natural gas is our only hope. Almost all the existing processing plants are now operating beyond their capacities. Nonetheless there has been a dwindling situation in the gas production. Besides political indecision regarding new establishment of gas plant and other power source have made the situation nothing but complicated. In such a case an idea of optimization of the gas processing plant will surely pave a way to a sustainable solution. This project has the intention to carry out the simulation of the Bakhrabad gas processing plant (at Sylhet) using the Aspen-HYSYS process simulator. The steady state simulation of the gas processing plant shall be performed based on both the design and physical property data of the plant.
Official Journal of the European Union, 2018
this manual is generally focus on the hydraulic engineering concept like how to understand propriety of flow ,type of flow,type of hydraulic jump and to determine the discharge coefficient of at any water structure
Recent Developments and Applications of the HYDRUS Computer Software Packages
Vadose Zone Journal, 2016
The HYDRUS-1D and HYDRUS (2D/3D) computer software packages are widely used finite-element models for simulating the one-and two-or three-dimensional movement of water, heat, and multiple solutes in variably saturated media, respectively. In 2008, Šimůnek et al. (2008b) described the entire history of the development of the various HYDRUS programs and related models and tools such as STANMOD, RETC, ROSETTA, UNSODA, UNSATCHEM, HP1, and others. The objective of this manuscript is to review selected capabilities of HYDRUS that have been implemented since 2008. Our review is not limited to listing additional processes that were implemented in the standard computational modules, but also describes many new standard and nonstandard specialized add-on modules that significantly expanded the capabilities of the two software packages. We also review additional capabilities that have been incorporated into the graphical user interface (GUI) that supports the use of HYDRUS (2D/3D). Another objective of this manuscript is to review selected applications of the HYDRUS models such as evaluation of various irrigation schemes, evaluation of the effects of plant water uptake on groundwater recharge, assessing the transport of particle-like substances in the subsurface, and using the models in conjunction with various geophysical methods.
Study Guide for Thermodynamics: an Engineering Approach
A area (m 2 ) C P specific heat at constant pressure (kJ/(kg⋅K)) C V specific heat at constant volume (kJ/(kg⋅K)) COP coefficient of performance d exact differential E stored energy (kJ) e stored energy per unit mass (kJ/kg) F force (N) g acceleration of gravity ( 9.807 m/s 2 ) H enthalpy (H= U + PV) (kJ) h specific enthalpy (h= u + Pv) (kJ/kg) h convective heat transfer coefficient (W/(m 2 ⋅K) K Kelvin degrees k specific heat ratio, C P /C V k 10 3 k t thermal conductivity (W/(m-°C)) M molecular weight or molar mass (kg/kmol) M 10 6 m mass (kg) N moles (kmol) n polytropic exponent (isentropic process, ideal gas n = k) η isentropic efficiency for turbines, compressors, nozzles η th thermal efficiency (net work done/heat added) P pressure (kPa, MPa, psia, psig) Pa
The hydrogen approach To be able to inform any future assessment of the feasibility of the costs and benefits of undertaking a hydrogen conversion, a full understanding of issues from end-to end (production to use) of the gas chain will be required. The hydrogen gas chain can be split into the following stages: • Production (including plant and CO2 off-take, CO2 sequestration and hydrogen storage). • Transmission network (involving the pipework that transports the gas under a pressure of between 7 and 85 bar). • Distribution network down to the end user's gas meter (involving pipework that transports the gas under a pressure of up to 7 bar). • End-use (i.e. downstream of the meter). This innovation programme seeks to demonstrate and de-risk the technologies downstream of the meter Global Energy Village,