generac model 5875 transfer switch manual

generac model 5875 transfer switch manual

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generac model 5875 transfer switch manualAll rights reserved. Aspen HYSYS, Aspen HYSYS Petroleum Refining, and Aspen HYSYS Pipeline Hydraulics, and the aspen leaf logo are trademarks or registered trademarks of Aspen Technology, Inc., Burlington, MA. All other brand and product names are trademarks or registered trademarks of their respective companies. This manual is intended as a guide to using AspenTechs software. This documentation contains AspenTech proprietary and confidential information and may not be disclosed, used, or copied without the prior consent of AspenTech or as set forth in the applicable license agreement. Users are solely responsible for the proper use of the software and the application of the results obtained. Although AspenTech has tested the software and reviewed the documentation, the sole warranty for the software may be found in the applicable license agreement between AspenTech and the user.These e-Bulletins proactively alert you to important technical support information such as: Technical advisories Product updates and releases vi vii Phone and E-mailCustomer support is also available by phone, fax, and e-mail for customers who have a current support contract for their product(s). Toll-free charges are listed where available; otherwise local and international rates apply. For the most up-to-date phone listings, please see the Online Technical Support Center at: vii viii viii Table of ContentsTechnical Support. Cancel anytime. Share this document Share or Embed Document Sharing Options Share on Facebook, opens a new window Share on Twitter, opens a new window Share on LinkedIn, opens a new window Share with Email, opens mail client Copy Text Related Interests Windows 2000 Computer Network Microsoft Windows Electrical Connector Ip Address Footer menu Back to top About About Scribd Press Our blog Join our team. Quick navigation Home Books Audiobooks Documents, active. To browse Academia.

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edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. Help Center less Academia hosts open access papers, serving our mission to accelerate the world’s research. Read Paper Aspen HYSYSOperations Guide Download Loading Preview Sorry, preview is currently unavailable. You can download the paper by clicking the button above. Hysys Unit Operations v10 Reference GuideWe believe everything in the internet must be free. So this tool was designed for free download documents from the internet.We are not associated with any website in anyway.We are not responsible for the content. You are self-responsible for your download.The source code can be found at Github. This leads to the following questions: What are reasonable estimates of pressure drop for process equipment. Each of these questions is addressed below. Estimating Pressure Drop Many engineering and operating companies have their own guidelines in terms of setting appropriate pressure drops. Typically this should range from 3 to 10 psi (20-70 kPa). For a better estimate (especially on the shell side of an exchanger), use a rigorous rating program such as HTFS-TASC. Separators A pressure drop of 5 psi (35 kPa) is usually reasonable above moderate pressures (e.g., 150 psi). For compressor scrubbers and associated piping, use a pressure drop of approximately 4 psi (30 kPa) for every 300 psia (2,075 kPa) working pressure up to 1,200 psia (8,300 kPa). Filters can introduce significant pressure drop; at higher pressures, 10 psi is typical for dirty filters. The HYSYS Tray Sizing Utility can be used as a guide to estimate tray and packing pressure drops. If piping pressure drop is included in the simulation, it either needs to be lumped into equipment pressure drop (e.g., at a separator), or alternatively modeled as a pipe or simply a valve with fixed pressure drop. Compressors and Pumps In many cases, the discharge pressure will simply be specified. There are many sources of information (the GPSA Handbook is one useful reference) that can help in providing guidelines; as mentioned before, engineering and operating companies often have their own guidelines for estimating pressure losses. Updating Pressure Profile as Conditions Change HYSYS users may wish to have pressure drops vary with process conditions (e.g., flow). This is possible using the HYSYS spreadsheet operation, which can calculate pressure drop as a function of imported conditions, then export the pressure drop to the corresponding equipment. As an example, the GPSA Handbook provides a function that allows the user to calculate relative pressure drops based on changes in conditions such as flowrate (1). In other cases, pressure drops may be updated automatically by HYSYS, such as when a heat exchanger is rigorously modeled (using the geometry) and pressure drops are calculated. The exception is with the HYSYS column, which requires a pressure profile as an input. The pressure profile in the column (i.e., top and bottoms stage pressure specifications) would have to be deleted to allow the pressure from the product streams to set the pressure in the column. When the inlet pressure to the column changes, the column pressure profile would also be updated. The effort that needs to be taken in setting up the pressure profile is a function of the objective for the HYSYS model. In many cases, the user does not need to worry about this aspect of the simulation. However, when one needs this level of detail, HYSYS provides the flexibility to do it. Steam-assisted gravity drainage (SAGD) is a common in-situ technique for oil production in Alberta. In this process, steam is injected downhole to reduce the viscosity of bitumen which is then brought to the surface via a production well. SAGD operations require significant amounts of high-pressure steam. Pinch analysis is a methodology for minimizing the utility requirements of a chemical process by calculating thermodynamically achievable targets as well as design rules for heat exchanger network retrofitting. Ultimately, minimizing the utility requirements of the process translates to greenhouse gas (GHG) emissions reductions and cost savings stemming from reductions in the fuel required to create steam. Why Perform a Pinch Analysis. To perform a pinch analysis, all heating and cooling loads in the process need to be identified (i.e. stream inlet and target temperatures). Once identified, the heating and cooling loads for the system can be graphed in a load vs temperature graph for analysis. The Composite Curves such as those presented in Figure 1 are useful to determine the minimum cooling and heating requirements of the process as well as the maximum possible heat recovery. The actual heat recovery achieved by the process depends on the heat exchanger network configuration used for heat integration. The heat exchanger area required to perform heat integration in the process is a function of the temperature difference between the heating and cooling curves, the greater the temperature difference, the smaller the required area. Note that theoretically, at an infinite heat exchanger area, the maximum heat recovery is achievable for any process. Common Features of SAGD Processes Figure 2 outlines the main unit operations typically found in a SAGD operation. The SAGD process consists of two horizontal wells in the well pad that are drilled into the oil reservoir. The injection well increases the temperature and pressure of the reservoir through high-pressure steam injection and the production well brings the oil emulsion to the surface. The oil emulsion coming up from the production well is then separated, often with the help of a diluent. While the oil is sent to an upgrading facility, most of the water is recycled in the process. The water stream undergoes treatment before being sent to the boilers to produce steam. Note that some makeup water is required as not all recycled water is fit for reuse. The steam is then sent back into the reservoir through the injection well. The makeup water needs to be heated before being sent to the water treatment tanks. Boiler feed water (BFW) needs to be heated for steam generation. Air used for fuel combustion in the boilers needs to be heated. Disposal water needs to be cooled prior to being sent to disposal. Common Heat Exchanger Configurations A common heat exchanger network (HEN) in a SAGD facility comprises the following strategies: Heating BFW with incoming hot emulsion and produced gas. The high-pressure blowdown is then typically sent to a pressure letdown operation where the blowdown pressure is reduced. Due to the pressure reduction, a portion of the blowdown is flashed as steam at lower pressure. The recovered steam at lower pressure could be used for process reasons (e.g., sludge agitation and deaeration) and a portion of it could be used for heating up the BFW and recycled back to process as clean water. Heating the deoiled water with the produced water. Heating make-up water with produced water. Mixing diluent into the liquid emulsion stream as a way of both cooling the emulsion and heating the diluent. There are usually several options to improve heat integration that should be investigated in detail: Arrangement of BFW-Emulsion and BFW-PG exchangers. Heat recovery from produced water. Produced water exchangers are susceptible to fouling and their performance needs to be monitored. The pressure at which the separator operates and the sequence of heat integration (direct heat recovery from HP Blowdown with lower pressure in separator OR heat recovery after the pressure reduction). Possibility of high-temperature deoiling operations. How Can We Help? Our team of talented process engineers is ready to help you determine the heating and cooling requirements of your process and come up with the optimal retrofit strategy for the existing heat exchanger network or alternatively design an optimum heat exchanger network for a greenfield facility. Our focus is not only on reducing energy demand as a proxy for cost and GHG emission reductions but to support the projects with relevant regulatory knowledge to achieve maximum savings. Optimal design of distributed effluent treatment systems in steam assisted gravity drainage oil sands operations.This leads to the following questions: What are reasonable estimates of pressure drop for process equipment. Piping Piping pressure drop can vary widely; the HYSYS pipe sizing utility can be used to predict the pressure drop. A handy workaround, in this case, is to use “Set” operations to fix the product stream pressures as shown in the figure below. Click here to contact us. James is a Chemical Engineering graduate from the University of Calgary and holds a MSc in Chemical Engineering from the same institution. In his spare time, when he’s not playing ice hockey or cycling, he is recovering from injuries incurred from those sports. Methane Emissions Advisor brings together the benefits of a modern user interface PO Box 27018 Tuscany PO Calgary, AB T3L 2Y1 (403)-690-0550 (403) 313-8931 Privacy Policy. Aspen HYSYS is an easy to use process modeling environment that enables optimization of conceptual design and operations. Hysys Unit Operations v10 Reference Guide.All rights reserved. This document is intended as a guide to using AspenTech's software. Although AspenTech has tested the software and reviewed the documentation, the sole warranty for the software may be found in the applicable license agreement between AspenTech and the user.For information on using Assay Management in HYSYS, please refer to the Assay Management in Aspen HYSYS Petroleum Refining Reference Guide or the HYSYS Help. For information regarding the Properties Environment, HYSYS Upstream operations, Sulsim (Sulfur Recovery) operations, Acid Gas Cleaning, Simulation and Analysis Tools, Safety Analysis, BLOWDOWN Technology, 1 Unit Operations Overview 1 HYSYS Dynamics, and HYSYS Equation Oriented (EO) Solving, please refer to the HYSYS Help. Integrated Steady State and Dynamics Simulation HYSYS uses an integrated steady state and dynamic modeling capability in which the same model can be evaluated from either perspective with full sharing of process information. The components that comprise HYSYS provide a powerful approach to steady state process modeling. The comprehensive selection of operations and property methods lets you model a wide range of processes with confidence. Perhaps even more important is how the HYSYS approach to modeling maximizes your return on simulation time through increased process understanding. The key to this is the Event Driven operation. HYSYS performs calculations as soon as unit operations and property packages have enough required information. Any results, including passing partial information when a complete calculation cannot be performed, is propagated bi-directionally throughout the flowsheet. What this means is that you can start your simulation in any location using the available information to its greatest advantage. Since results are available immediately - as calculations are performed - you gain the greatest understanding of each individual aspect of your process. Multi-Flowsheet Architecture The multi-flowsheet architecture of HYSYS is vital to this overall modeling approach. Although HYSYS is designed to allow the use of multiple property packages and the creation of pre-built templates, the greatest advantage of using multiple flowsheets is that they provide an extremely effective way to organize large processes. By breaking flowsheets into smaller components, you can easily isolate any aspect for detailed analysis. Each of these sub-processes is part of the overall simulation, automatically calculating like any other operation. The design of the HYSYS interface is consistent, if not integral, with this approach to modeling. Access to information is the most important aspect of successful modeling, with accuracy and capabilities accepted as fundamental requirements. Not only can you access whatever information you need when you need it, but the same information can be displayed simultaneously in a variety of locations. Just as there is no standardized way to build a model, there is no unique way to look at results. HYSYS uses a variety of methods to display 2 1 Unit Operations Overview process information - individual property views, the PFD, Workbook, graphical Performance Profiles, and Tabular Summaries. Not only are all of these display types simultaneously available, but through the object-oriented design, every piece of displayed information is automatically updated whenever conditions change. Extensibility and Customization The inherent flexibility of HYSYS allows for the use of third party design options and custom-built unit operations. These can be linked to HYSYS through OLE Extensibility. This section covers the various unit operations, template and column subflowsheet models, optimization, and dynamics. Since HYSYS is an integrated steady state and dynamic modeling package, the steady state and dynamic modeling capabilities of each unit operation are described successively, illustrating how the information is shared between the two approaches. In addition to the physical operations there is a chapter for logical operations, which do not physically perform heat and material balance calculations, but that impart logical relationships between the elements that make up your process. Logical Operations The Logical Operations presented in this volume are primarily used in Steady State mode to establish numerical relationships between variables. Examples include the Adjust and Recycle. There are, however, several operations such as the Spreadsheet and Set operation which can be used in Steady State and Dynamic mode. Subflowsheets You can define processes in a subflowsheet, which can then be inserted as a “unit operation” into any other flowsheet. You have full access to the operations normally available in the main flowsheet. Columns Unlike the other unit operations, the HYSYS Column is contained within a separate subflowsheet, which appears as a single operation in the main flowsheet. Integrated into the steady state modeling is multi-variable optimization. Once you have reached a converged solution, you can construct virtually any objective function with the Optimizer. There are five available solution algorithms for both unconstrained and constrained optimization problems, with an automatic 1 Unit Operations Overview 3 backup mechanism when the flowsheet moves into a region of non-convergence. HYSYS offers an assortment of analysis tools which can be attached to process streams and unit operations. These tools interact with the process model and provide additional information. In this guide, each operation is explained in its respective chapters for steady state and dynamic modeling. A separate guide has been devoted to the principles behind dynamic modeling. HYSYS is the first simulation package to offer dynamic flowsheet modeling backed up by rigorous property package calculations. Note: The HYSYS Dynamics license is required to use the features in the HYSYS dynamics mode. HYSYS has a number of unit operations, which can be used to assemble flowsheets. By connecting the proper unit operations and streams, you can model a wide variety of oil, gas, petrochemical, and chemical processes. A number of operations are also included specifically for dynamic modeling, such as the Controller, Transfer Function Block, and Selector. The Spreadsheet is a powerful tool, which provides a link to nearly any flowsheet variable, allowing you to model “special” effects not otherwise available in HYSYS. Degrees of Freedom In modeling operations, HYSYS uses a Degrees of Freedom approach, which increases the flexibility with which solutions are obtained. For most operations, you are not constrained to provide information in a specific order, or even to provide a specific set of information. As you provide information to the operation, HYSYS calculates any unknowns that can be determined based on what you have entered. For example, consider the Pump operation. If you provide a fully-defined inlet stream to the pump, HYSYS immediately passes the composition and flow to the outlet. If you then provide a percent efficiency and pressure rise, the outlet and energy streams is fully defined. If, on the other hand, the flowrate of the inlet stream is undefined, HYSYS cannot calculate any outlet conditions until you provide three parameters, such as the efficiency, pressure rise, and work. In the case of the Pump operation, there are three degrees of freedom, thus, three parameters are required to fully define the outlet stream. 4 1 Unit Operations Overview All information concerning a unit operation can be found on the tabs and pages of its property view. Each tab in the property view contains pages which pertain to the unit operation, such as its stream connections, physical parameters (for example, pressure drop and energy input), or dynamic parameters such as vessel rating and valve information. Adding Unit Operations You can use the Model Palette to add HYSYS unit operations, streams, and subflowsheets to the main flowsheet or a sub-flowsheet. Operations can also be installed and set up from the Workbook, which is a spreadsheet style view of the simulation environment. Note: The standard Model Palette is available for the main flowsheet and the Standard Sub-Flowsheet. However, Column Sub-Flowsheets, EO Sub-Flowsheets, Aspen Hydraulics Sub-Flowsheets, and Sulfur Recovery Unit (SRU) Sub-Flowsheets feature different model palettes. These palettes feature different unit operations depending on the sub-flowsheet type. To access the Model Palette: l Press F4. To add a stream: l On the Model Palette, in the upper-right corner, click the desired stream type. Name Icon Material Stream Energy Stream The upper-right corner of the model palette also allows you to add a Standard Sub-Flowsheet or an EO Sub-Flowsheet. 1 Unit Operations Overview 5 Name Icon Standard Sub-Flowsheet EO Sub-Flowsheet To add other unit operations or sub-flowsheets: 1. On the Model Palette, select one of the following Views: o Text View: Display the icon, name, and description for each unit operation.You can hover over a unit operation to view the associated tooltip. 2. You can either: o Type a search term in the search bar, and then click. Searches are filtered based on the name and description. -or- o 6 Select one of the categories on the left-hand side. To add it to the PFD: o Drag and drop the icon onto the PFD. -or- o 10 Double-click the icon. 1 Unit Operations Overview Basic Unit Operation Property View Although each unit operation differs in functionality and operation, in general, the unit operation property view remains consistent in its overall appearance. Most operation property views contain the following common objects: l l l Delete button. This button lets you delete the unit operation from the current simulation case. Only the unit operation is deleted, any streams attached to the unit operation is left in the simulation case. Status bar. This bar displays messages associated to the calculation status of the unit operation. The messages also indicate the missing or incorrect data in the operation. Ignore check box. This check box lets you toggle between including and excluding the unit operation in the simulation process calculation.HYSYS completely disregards the operation until you restore the operation to an active state by clearing the check box. The Operation property view also contain several different tabs which are operation specific, however the Design, Rating, Worksheet, and Dynamics tabs can usually be found in each unit operation property view and have similar functionality. Tab Description Design Connects the feed and outlet streams to the unit operation. Other parameters such as pressure drop, heat flow, and solving method are also specified on the various pages of this tab. Rating Rates and Sizes the unit operation vessel. Specification of the tab is not always necessary in Steady State mode, however it can be used to calculate vessel hold up. Worksheet Displays the Conditions, Properties, Composition, and Pressure Flow values of the streams entering and exiting the unit operation. Dynamics Sets the dynamic parameters associated with the unit operation such as valve sizing and pressure flow relations. Not relevant to steady state modelling. For information on dynamic modeling implications of this tab, refer to the HYSYS Dynamics section. Note: If negative pressure drop occurs in a vessel, the operation will not solve and a warning message appears in the status bar. 1 Unit Operations Overview 11 Object Inspect Menu To access the Object Inspect menu of a unit operation property view, right-click on any empty area of the property view. The unit operation property view all have the following common commands in the Object Inspect menu: Command Description Print Datasheet Lets you access the Select DataBlocks to Print property view. Open Page Lets you open the active page into a new property view. Find in PFD Lets you locate and display the object icon in the PFD property view. This command is useful if you already have access to an object's property view and want to see where the object is located in the PFD. Connections Lets you access the Logical Connections For. Property View. Logical Connections For. Property View The Logical Connections for.Certain HYSYS operations can write to any other object and if the user is looking at the object being written to, they have no way of telling this, other than that the value might be changing. For example, one can determine if one spreadsheet is writing to another. Note: The Logical Connections for.The table in the Logical Connections for.Duplicate connectivity information may be shown otherwise (either via a line on the PFD or elsewhere in a Logical operations property view, for example). Usually, you do not need to select this check box. Note: There is only one Show All check box for your HYSYS session. When the check box is changed, the current setting is effective for all Logical Connections For. The Object Inspect menu associated to the object appears. 3. Select Connections command from the Object Inspect menu. Note: The information displayed in the Logical Connections for. The following sections describe the common objects in HYSYS operation property view. Graph Control Property View The Graph Control property view and its options are available for all plots in HYSYS. The options are grouped into five tabs: l l l l l Data - Modify the variable characteristics (type, name, color, symbol, line style, and line thickness) of the plot. Axes - Modify the axes characteristics (label name, display format, and axes value range) of the plot. Title - Modify the title characteristics (label, font style, font color, borders, and background color) of the plot. Legend - Modify the legend characteristics (border, background color, font style, font color, and alignment) of the plot. Plot Area - Modify the plot characteristics (background color, grid color, frame color, and cross hair color) of the plot. To access the Graph Control property view, do one of the following: l l Right-click any spot on an active plot and select the Graph Control command from the Object Inspect menu. Click in the plot area to make the plot the active object. Then, either double-click on the plot Title or Legend to access the respective tab of the Graph Control property view. 2 Unit Operation Common Property Views 15 Heat Exchanger Page The Heat Exchanger page on the Dynamics tab for most vessel unit operations in HYSYS contains the options use to configure heat transfer method within the unit operation. There are three options to choose from: l l l None radio button option indicates that there is no energy stream or heat exchanger in the vessel. The Heat Exchanger page is blank and you do not have to specify an energy stream for the unit operation to solve. Duty radio button option indicates that there is an energy stream in the vessel. The Heat Exchanger page contains the HYSYS standard heater or cooler parameters and you have to specify an energy stream for the unit operation to solve. Tube Bundle radio button option indicates that there is heat exchanger in the vessel and lets you simulate a kettle reboiler or chiller. The Heat Exchanger page contains the parameters used to configure a heat exchanger and you have to specify material streams of the heat exchanger for the unit operation to solve. Note: The Tube Bundle option is only available in Dynamics mode. Note: The Tube Bundle option is only available for the following unit operations: Separator, Three Phase Separator, Condenser, and Reboiler. Duty Radio Button Options When you select the Duty radio button the following options are available. You must specify the heater height in the Top of Heater and Bottom of Heater cells that appear with Heater Height as Vessel Volume group. The heater height is expressed as a percentage of the liquid level in the vessel operation. The default values are 5 for the Top of the Heater and 0 for the Bottom of the Heater.Any changes made in this cell are reflected on the Duty field of the Parameters page on the Design tab. Min. Available Lets you specify the minimum amount of heat flow. Max. Available Lets you specify the maximum amount of heat flow. If you select the Utility radio button, the Utility Properties group appears, and you can specify the flow of the utility fluid.The calculated duty is then displayed in the SP field or the Heat Flow field.If you select the Cooling radio button, the duty shown in the SP field or Heat Flow field is subtracted from the holdup.Tube Bundle Radio Button When you select the Tube Bundle radio button, the Tube Bundle options are available. Note: If you had an energy stream attached to the unit operation, HYSYS automatically disconnects the energy stream when you switch to the Tube Bundle option. The Tube Bundle option lets you configure a shell tube heat exchanger (for example, kettle reboiler or kettle chiller). A weir limits the amount of liquid in the pool. The liquid overflow is placed under level control and provides the main liquid product. The vapor is circulated back to the vessel. In the kettle chiller, the process fluid is typically on the tube side with a refrigerant on the shell side. The refrigerant if typically pure and cools by evaporation. The setup is similar to the reboiler except that there is no weir or level control. 2 Unit Operation Common Property Views The unit operation icon in the PFD also changes to indicate that a heat exchanger has been attached to the unit operation.

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