Ejector is a device in which (a) a motive fluid flows from a region of high pressure through a nozzle into a low

pressure-mixing zone, developing a high velocity
(b) the motive fluid mixes with a load fluid entering the mixing zone, and (c) the mixture flows through a diffuser into a region at

a pressure higher than the load-fluid supply pressure.

Advantages:
* Large capacity ejector can be constructed because of simple structure and no moving parts.
* Maintenance free
* Corrosive gas can be treated because of wide range of material construction.
* Low initial cost

 Disadvantages:
* High operating cost
* Noise pollution in case of relieving directly to the atmosphere
* A large amount of waste water
* Narrow operating range

HERE ARE TYPICAL INFORMATION TO VENDORS

1. Item Number
2. Type
3. Quantity
4. Design Condition
* Pressure
* Temperature

7. Operating Condition
1. Motive Fluid
* Flow rate
* Pressure
* Temperature
* Specific Gravity

2. Suction Fluid
* Flow rate
* Pressure
* Temperature
* Specific Gravity

3. Discharge Fluid
* Flow rate
* Pressure
* Temperature
* Specific Gravity

4. Size and Connection
* Motive Fluid (Steam)
* Suction
* Discharge

5. Materials
* Head and diffuser
* Motive Nozzle
* Bolt and Nuts
* Gasket
* Flange

6. NDE
7. Pressure (Hydrotest)
8. Location
* Line no.
> Motive Fluid
> Suction
> Discharge
* P & ID

SOME EJECTOR (EDUCTOR)  VENDORS

1. Dongsuh Machinery Co.    http://www.dongsuhmachinery.co.kr
2. Graham Corporation           http://www.gppltd.u-net.com

Unit Conversions 2000 is a small utility that will allow you to quickly convert units of measure from one system to another.

Facilities are included to convert various Lengths, Weights, Volumes, Areas, Density, Power and Scale measurements.

	Requires	MS Windows 95/98, ME, XP, Vista, 2000 or Windows NT
	Download	UCONVERT.ZIP (169K Bytes)
	Updated	May 22nd, 2005
	Installation	Unzip to a temporary directory and run SETUP.EXE
	Price	Free
	Source	http://www.gregorybraun.com/uConvert.html

PipeData-PRO-Software for piping designers and engineers.

Fast easy access to dimensional and WEIGHT information for pipe, pipe fittings, flanges and valves!

Pipedata-pro is an easy to use computer program, giving fast access to a vast library of data for pipe, pipe fittings, flanges and valves. Information is quick and easy to find and is clearly presented on screen. Piping designers and engineers in consulting, fabrication and construction companies use this software throughout the world. To find out how useful Pipedata-pro can be to you, download an evaluation copy and try free for 30 Days.

Click here to check out this software

CAEPIPE (pronounced k-pipe), the first pipe stress analysis program on PC (1983), is the preferred tool for modeling and analyzing statically and dynamically the effects of weight, temperature, pressure, earthquake, time varying and harmonic loads, among others, in piping systems of any complexity in energy, process, aerospace, and related industries. CAEPIPE also checks for piping code and guideline compliance (ASME, B31, International codes, API, NEMA) and can import and export data from major plant design systems (AVEVA/CADCentre, CADMATIC, Intergraph and others).

Why CAEPIPE?		Facts
Easiest to (re)learn, Cuts your time by half		The FASTEST MODELING Techniques - GUARANTEED
Uniquely quick iterative studies		FREE EVALUATION copies, "uncrippled," full-featured
Acclaimed user interface		First on the PC, i.e., THE MOST ROBUST
Twice as productive at half the cost		Technologically the most advanced
Realistic graphical visualization    using OpenGL®		Most Responsive Support
Verified accuracy

You can check more CAEPIPE DETAILS HERE
Watch a short video here
Download a FREE full-feature evaluation copy hereShort Video Demo here

AEC Design Group develops and distributes AutoCAD-based software products for the Process Piping, Commercial Piping, HVAC, and steel construction industries. Our clients are involved in petrochemical, commercial, pulp & paper, utility, marine, biotechnology, pharmaceutical, food & beverage, and the semiconductor markets.

AEC Design Group has just released CADPIPE Version 8.2 (AutoCAD 2008 Compatible).

Download a FREE trial today. All CADPIPE Demo Software is a 100% full working version of our product–yours to use for 25 days. Try out any or all of the CADPIPE products and see how their features can increase and streamline your workflow.

ommercial Pipe For Mechanical/Plumbing Contractors AutoCAD based Mechanical Drafting program for pressure, waste, copper, and plumbing.

CADPIPE HVAC For HVAC Contractors AutoCAD based compatible program using SMACNA standards & metric British standards.

CADPIPE Industrial Power & Process AutoCAD compatible mechanical drafting program for industrial pipe, etc.

CADPIPE Electrical For Electrical Contractors AutoCAD based drafting program to easily create cable trays, conduit, and wiring diagrams.

CADPIPE Hanger CADPIPE Hanger allows you to create and edit pipe & duct hanger designs.

Source:http://www.cheresources.com/software.shtml

DHex is a software tool that is made to demonstrate the chemical design calculations of Double pipe (hairpin) Heat Exchangers.The software will do all the thermal calculations involved in the design and will generate a summary of all results, List of main functions:
+Step by step calculation
+Support S.I Units and English (U.S) Units of mesurement.
+User database functions to allow user to add/delete components and load to hot/cold side (Empty database!).
+Ability to import properties to Hot/Cold sides from Microsoft Excel.
+Ability to calculate unknown Cold or Hot side temperatures.
+Perform thermal analysis for bare tube double pipe (hairpin) heat exchangers.+Perform thermal analysis for finned tube double pipe (hairpin) heat exchangers.
+Choose from Counter Current or Co-Current Flow arrangement.
+Choose from Series arrangement or Series-Parallel arrangement.
+The software will also tell you the location of Hot/Cold fluids within the heat exchanger (Inner Pipe or Outer Pipe).
+Select from different correlations to calculate Cold/Hot side heat transfer coefficient. Also the ability to adjust Nusselt number if you do have a different correlation.
+Calculate the Area, Flow area, Length, Log Mean Temperature Differance, Number of Hairpins,Unknown Flow rate.
+Calculate the scale resistance (dirt factor), Equivalent Diameter.
+Calculate Pipe/Annulus side Reynolds, Nusselt numbers & Prandtl Numbers
+Duty Calculation, Clean and Design Overall heat transfer coefficient calculations.
+Pipe/Annulus velocities and Mass velocity calculations
+Number of Transfer Units and Thermal Capacity ratio calculation +Clean and Fouled Fin Efficiency calculations for finned tube heat exchanger.
+Pressure drop calculations & Entrance and Exit losses.
+Export Results summary to Microsoft Excel
+Save/Load results. Generate/Print a summary of results. For more information visit http://www.webbusterz.com or http://www.webbusterz.net

Product homepage: http://www.webbusterz.com
Download Demo:  href="http://www.freedownloadmanager.org/downloads/Double_Pipe_Heat_Exchanger_Design_%28DHex%29_41317_p/free.htm">www.webbusterz.com

1) Step by step design and rating calculations
2) Estimate the Physical properties of more than 1450 components; the database has the ability to estimate Thermal Conductivity, Density, Heat Capacity and Viscosity. The database also included critical properties, boiling and melting points.
3) Estimate mixture properties. (ALL ESTIMATION METHODS CURRENTLY SUPPORT LIQUIDS ONLY)
4) Integrated customised database functions to allow user to add/delete components.
5) Fixed tube sheet counts and general tube sizes tables
6) Ability to import properties to Shell/Tube sides form Microsoft Excel
7) Export Results summary to Microsoft Excel
Ability to calculate unknown shell or tube side temperatures by iteration method (solving by trial and error) - also calculate unknown exit temperatures in rating mode.
9) Also can select from different correlations to calculate shell or tube heat transfer coefficient
10) Calculate the scale resistance (dirt factor)
11) Shell/Tube side Reynolds & Nusselt numbers
12) Baffle number and spacing
13) Recommended minimum shell thickness, minimum recommended number & diameter of rods.
14) Calculate Shell/Nozzle/Channel/Head/Tubesheet Thickness.
15) Support S.I Units and English (U.S) Units of mesurement.
16) Duty Calculation
17) Overall heat transfer coefficient for both Clean and Fouled conditions
18) Shell/Tube velocities.
19) Number of transfer units, Effectiveness, Thermal capacity ratio
20) Pumping power / Inlet and Exit Nozzles pressure losses / Scale resistance Calculators
21) Save/Load results.
22) Generate/Print a summary of results.

Product homepage: http://www.webbusterz.com

Download Demo:  www.webbusterz.com

PVX - 2007 (formerly SnapCAD.Exchanger) provides an amazing flexibility when designing and rating ASME pressure vessels, TEMA/ASME heat exchangers and interconnecting piping. PVX - 2007 helps you build and optimize designs faster and more efficient than ever before.

More than just a "Calculator"
The unique architecture behind the PVX - 2007 platform ensures that each part of a vessel or exchanger is designed to perfectly match its environment. Real-time ASME code calculations, 3D SOLID modeling and fully customizable reports and drawings speeds up both the design and manufacturing process. Costly problems can be caught and corrected in any stage of the conceptual or final mechanical design.

Thermal Design Import
Existing shell and tube heat exchanger thermal designs can easily be imported from thermal design software programs such as HTRI's Xist, AspenTech's STX and TASC.

Solid Model Export
PVX - 2007 can automatically create 3D SOLID models for use in plant design software or for creating detailed drawings with any major CAD software. PVX's solid models are fully compatible with

• AutoCAD
• Solid Edge
• Solid Works
• Inventor
• AutoPlant
• SmartPlant 3D
• Pro/e
• IntelliCAD
• and any other major CAD program.

DWG Drawings:
The scaled 3D solid models, templates and calculated data created in PVX can be directly incorporated into DWG and other drawing formats.

PVX - 2007 significantly reduces design and drafting time of pressure vessels and shell and tube heat exchangers!

Contact htcsoftware  for a fully functional free trial version!

More details, go to http://www.htcsoftware.com/

You are invited to download any of the fully functional trial versions or free ware of G&Papplications now!  Converting the trial download to an unlimited use version is easily performed by entering a key code after registering the software (performed on-line)! 
You will find that all applications were developed for ease of use and uncompromised accuracy…allowing users to focus on their work and not on their software.

Downloads

PhysProps: