The Pipe Flow Expert software will allow you to easily draw and model a piping design.
The pipe system is defined using Pipe Flow Expert's incredibly intuitive user interface, which also supports isometric 3D piping layouts.
Next: Pipe Flow Expert Software Brochure
The pipe system is defined using Pipe Flow Expert's incredibly intuitive user interface, which also supports isometric 3D piping layouts.
2.3.1.2 Ejector flow regimes and their criteria - 47 2.3.1.3 Computational procedure - 53 2.3.2 Constant-area ejector computer program (CAE) 56 2.3.3 Representative results 58 2.4 STAGED CONSTANT-AREA EJECTOR SYSTEM 65 2.4.1 System configuration 65 3.0 EXPERIMENTAL INVESTIGATION 71 3.1 COLD-FLOW, AIR-TO-AIR, EJECTOR EXPERIMENTS 71.
- 6 Design of new ejector and comparison with measured ejector We will find the new ejector which has greater mass flow rate in the suction branch (mass flow of air) than the original ejector for pressure 90-100 kPa. This we must find new dimensions of ejector which meets this conditions. Diameter of throat ( Dk) and diffusor ( Dv) are changed.
- RE: Steam ejector design rmw (Mechanical) 9 Dec 08 18:54 Yeah, call your local Graham representative or go to www.graham-mfg.com and ask for a copy of their software 'vacworks.'
Piping Design and Pipeline Modeling
The piping model will typically include standard physical data such as:
- The internal size, internal roughness and length of each pipe.
- The elevation of each node (join point) where several pipes connect.
- The additional in-flow or out-flow (take off) at any particular node.
- The elevation, liquid level and surface pressure data for each tank.
- The flow versus head performance data for each pump.
The calculated results include the flow rates for each pipe, the fluid velocities for each pipe, Reynolds numbers, friction factors, friction pressure losses for each pipe, fittings losses, component pressures losses, node pressures, pipeline HGL (Hydraulic Grade Line), pump operating points (including pump head required) and more.
Flow Rate and Pressure Drop Calculations
Pipe Flow Expert calculates the balanced steady state flow rates, pipe pressure drops and node pressures within a piping system.
Vertex ce59 software download torrent. The Colebrook-White friction factor equation is used to determine the correct pipe friction factors and the Darcy-Weisbach friction loss calculation method is used to calculate the pipe friction losses.
Solving the Piping Design
To solve and calculate the flow and pressure loss results the following conditions have to be satisfied:
- Conservation of Mass Flow must be maintained, i.e. there must be mass flow continuity at every node (point where multiple pipes join) within the pipe system.
- Conservation of Energy must be maintained, i.e. the algebraic sum of the pressure losses around a loop in the pipe network must be zero.
The second condition can also be related to 'pseudo-loops' (any path between two tanks or end points in the system) such that the algebraic sum of the pressure losses in the pipes along the path must equal the difference in pressure between the start and end point.
Method of Solution
Pipe Flow Expert generates the fundamental conservation of energy and conservation of mass flow equations from the piping system model. It then uses advanced mathematical matrix methods to solve the resulting hydraulic equations, taking account of pumps, components, flow controls, PRVs, BPVs, pipe fittings, pipe materials, pipe sizes, and fluid data.
The final solution is then checked by a second algorithm which compares the calculated pressure at all adjacent nodes to ensure that the pressure difference is equal to the pressure loss resulting from the flow in the pipe joining the nodes. This double check of the pipe network verifies that the calculated pressure at each node is consistent, irrespective of which path through the network is used to calculate the pressure loss back to a particular pressure reference.
Ejector Design Software Download
Finding an accurate solution of the flows and pressures in a pipe network is not an easy task. It is many orders of magnitude more difficult than finding the pressure loss in a single pipe for a known flow rate, which is why it is important to use proven software with a reliable calculation engine. Pipe Flow Expert is trusted by users in over 100 countries worldwide.
Next: Pipe Flow Expert Software Brochure
Ejector Design Calculation Software Reviews
Ejector is a device whose task is to transport liquids through the pipeline. It is similar to a pipe fitting and it has the same function as a pump. Primary (working) liquid is its source of driving energy. For this reason, it is referred to as “jet pump”. According to type and state of driving and driven liquid, the ejectors are divided to water (water is both primary and secondary medium), gas, steam ones etc. Working and sucked substance may differ. In that case the ejector releases mixture of two liquids.
The ejector works on the principle that the working substance enters the suction nozzle, that can be either classical tapering or Laval’s one, downstream which there can be supercritical flow. Due to expansion in the nozzle the pressure is dropped and the velocity of the primary liquid is increased. Thanks to that there is a negative pressure formed in the suction chamber and it begins to suck-in the secondary (driven) liquid. Mackie serial number lookup. At the outlet of the suction chamber of the nozzle the admixture of substances has the same pressure but different velocity profile, that is to be conditioned in the mixing chamber. In case of subcritical flow, the mixing chamber has a shape of a cylinder and in case of supercritical flow it is tapered to slow down the flow. At the inlet of the divergent section (expanding channel) there must be subcritical flow according to Huguenot theorem, so that compression (i.e. reduced velocity) as well as increase in liquid pressure was caused. Then admixture of working and suctioned substance with the steady pressure and velocity profile leaves the ejector.
Ejectors can be produced in wafer as well as so-called welded-in designs. The weld insertion in the pipe has advantages such as material and mass savings on the flanges as well as minimization of leakage at the flange joints. Wafer type design has advantage of easy replacement of ejector in case of eventual modification of technological parameters as well as better access for servicing. The body of the ejector can be cast, machined from a forge, or it is welded from bent centring. Suction nozzle can be manufactured by machining.
Mostly used materials are carbon or stainless steels. Upon agreement, the injector can be made of special refractory steels and materials based on nickel titanium alloys, or tantalum. It can be made of plastic materials, too.
Selection of the design as well as the material of the body and suction nozzle of the ejector depends on operational and max. parameters and the type of primary and secondary liquid. It is suitable to use the ejector at locations with sufficient working substance for device powering. Pivotal dimensions are calculated from specified operating parameters of working and suctioned liquid.
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The biggest advantage of the ejector is the lack of rotating parts as well as its construction simplicity. The ejector doesn’t need electricity, only sufficient quantity of working substance.
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EJECTOR
Ejector is a device whose task is to transport liquids through the pipeline. It is similar ..