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Software
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FEAView is a finite element modeler and post-processor for linear
static problems using MSC. Nastran. It supports all the elements,
properties, materials, and loads commonly used in structures problems.
It is rich in graphics and transforms the model and solver results data
into readily comprehensible 3D graphical and tabular displays. FEAview
has its roots in aircraft structural analysis. The basic modeling
toolset in FEAview is now complete and modeling will be taken to the
next level in future releases. In the second quarter of 2006 FEAview
will split into two products. The new product will be a general purpose
modeler and post-processor for scientific applications. This product
will be free to all who have a license to FEAview
>> more
information
This
program calculates thermodynamic and
transport properties of gaseous, liquid and solid species (TP, HP and
SP), according to U.S. customary and International units. The user can
analyze power cycles (Carnot and Brayton), power cycle components and
processes (compression, combustion and expansion) and compressible flow
(velocity of sound, Mach number, stagnation and static properties,
nozzle, normal shock, diffuser and thrust).
This software package should prove to be a good tool for those who are
involved at various levels with design, operation and management of
propulsion systems. It should provide the user with the opportunity to
more quickly, easily and effectively do his/her work, explore more
options, save time and give more confidence in carrying out engineering
calculations.
- Thermodynamic and Transport Properties:
Temperature
and Pressure (270 K < T < 5,000 K), Enthalpy and Pressure
and
Entropy and Pressure
- Power Cycles: Carnot and Brayton (Power and
Propulsion)
- Power Cycle Components/Processes: Compression,
Combustion (Coal/Oil/Gas) and Expansion
- Compressible Flow: Velocity of Sound, Mach
Number,
Properties (Stagnation and Static), Nozzle, Normal Shock, Diffuser and
Thrust
This spreadsheet calculates
thermodynamic and
transport properties of a few gaseous, liquid and solid species (TP),
according to International units. The user can analyze power cycles
(Carnot and Brayton), power cycle components and processes
(compression, combustion and expansion) and compressible flow (velocity
of sound, Mach number, stagnation and static properties, nozzle, normal
shock, diffuser and thrust).
 The
LdeApprox package is powerful Mathematica toolbox which allows you to
find analytical polynomial approximation for solutions of initial and
boundary value problems with symbolic conditions on symbolic
approximation interval with singular regular points. The methods
applied are numerically analytical. It means that
LDE
coefficients, boundary or initial conditions and interval of the
approximation can be either symbolical or numerical expressions.
These methods can be applied to find
-approximation of some functions with parameters on symbolic
approximation interval
-approximate polynomial for solution of initial value problems (IVP)
-approximate polynomial for solution of boundary value problems (BVP)
-approximate polynomial for solution of LDE with regular singular
points (RSP)
The methods give asymptotically best approximation in Chebyshev
metric.
The LdeApprox package is powerful Maple toolbox which allows you to
find analytical polynomial approximation for solutions of initial and
boundary value problems with symbolic conditions on symbolic
approximation interval with singular regular points. The methods
applied are numerically - analytical. It means that LDE
coefficients, boundary or initial conditions and interval of the
approximation can be either symbolical or numerical expressions.
These methods can be applied to find
-approximation of some functions with parameters on symbolic
approximation interval
-approximate polynomial for solution of initial value problems (IVP)
-approximate polynomial for solution of boundary value problems (BVP)
-approximate polynomial for solution of LDE with regular singular
points (RSP)
The methods give asymptotically best approximation in Chebyshev metric.
 Shell-and-Tube
Heat Exchanger (version 1.1)- is a user friendly program which for a
given heat exchanger initial conditions and geometry predicts outlet
temperatures of both shell-side and tube-side fluids, heat exchanged,
pressure drop on the tube sides and fluid velocity in the inlet/outlet
nozzles. For a given input and output conditions the program can
estimate preliminary heat exchanger design parameters. Program assumes:
* heat exchange between counterflow fluids only
* shell insulation
* heat transfer with ambient air.
* shell-side fluid heating is possible
* evaporation and condensation are not considered
* results can be saved(into)/loaded(from) *.hec file
PHex is an easy to use tool which domonstrates the thermal calculations
of Gasketed Plate Heat Exchangers, The plate dimensions and materials
can be entered, this includes the size of plate heat exchanger and
chevron angle (25 to 65 degrees). List of main features:
1- User friendly and easy to use with ability to save/load data.
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.
4- Create you own database of Plates and Components. You can add your
fluid physical properties and load the data to your project with a
click of a button and more...
5- Chose between S.I. or English U.S. units of measurements.
6- Temperature and Flow rate estimation in the event of insufficient
data.
7- Heat load required (clean or fouled) calculations.
8- Duty clean / dirty calculations
9- Total effective area calculation.
10- Surface area calculation.
11- Number of plates calculations.
12- Overall Coefficient (clean / dirty) calculations.
13- Pressure drop Channel/Port/Total for Hot side and Cold side
Calculations.
14- Plate heat exchanger dimension calculations.
15- Velocity through ports, Mass velocity through channel/ports
calculations.
16- Reynolds and Nusselt numbers calculations.
17- Heat transfer coefficient calculations
18- Summary of results with image to help in understanding.
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.
A convenient, precise and powerful tool for HVAC&R engineers.
This
psychrometric chart use ASHRAE equations at normal temperature and
pressure region and is perfectly consistent with all ASHRAE charts of
No.1~7(SI Units) and No.1~5(IP Units). Both Metric(SI) and
English(IP) units support.
Save and load data function for each data input grid, all input data
can be saved for loading next time program started.
Psychrometric
chart
1. Use IAPWS-IF97 equation for water/vapor properties calculating, and
treat moist air as real gas for high precision;
2. Dry bulb temperature and humidity ratio axis range can be changed
easily, the chart generation is automatic and fast;
3. Draw protractor for enthalpy-humidity and sensible-total heat ratio;
4. Mouse point catch, snap and calculation, output point information
and many air properties;
5. Normal and eastern(China) style support;
6. Chart grid snap, aided constant parameter lines across cursor point,
middle button pan and mouse wheel zoom for convenient chart operating;
7. Many process point managements, include point pick up, data input
grid, point definition select, point add, insert, reduce, delete, move
up and down, open and save point list;
8. Convenient interface for process and mix point calculating;
9. Once and twice recycle calculating;
10. Point state convert calculating, and give warning and error
message, output point information if point state is OK;
11. Chart plot/display setup and management support;
12. Chart can be easily printed, copied to clipboard as bmp and wmf
format, and exported as bmp, jpg, wmf or emf format.
Duct
Calculator
1. Calculate air/liquid and round/rectangle cross section duct;
2. Calculate duct flow resistance, environmental heat exchange, and
adiabatic effect.
Note: Outer coefficient of heat transfer usually 3~10, >10 when
winds.
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Want to know how many seconds are in a century or how many tablespoons
are in ten gallons? Conversion Tables will convert most metric and
standard measurements instantly. Measurements included are area,
density, distance, energy, liquid, pressure, speed, temperature, time,
volume and weight. Simply enter a value and select the unit of measure,
and Conversion Tables will display conversions for a variety of related
units. Also, you can calculate costs on some of the
conversions.
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