Temperature Relative Pressure

The ISA Chart is generated at standard conditions by calculating the variations of relative temperature, relative pressure and relative density, all of them functions of altitude variations. Absolute variables are also considered.

Calculation of : Pt100 , temperature , relative humidity , dew point , wet-bulb temperature t' , water vapour partial pressure , saturation vapour pressure , air density , saturation humidity , absolut humidity , specific humidity , enthalpy etc.

Air Conditioning ClimeCalc can be used for the calculation of: Pt100, temperature, relative humidity, dew point, wet-bulb temperature t', water vapour partial pressure, saturation vapour pressure, air density, saturation humidity, absolute humidity, specific humidity, enthalpy etc.


Platforms: Windows

Calculation of : Pt100 , temperature , relative humidity , dew point , wet-bulb temperature t' , water vapour partial pressure , saturation vapour pressure , air density , saturation humidity , absolut humidity , specific humidity , enthalpy etc.


Platforms: Windows

A still atmosphere attenuates sound as a function of frequency, temperature, relative humidity, and propagation distance. This function uses equations published by Bass et al. to calcuate the attenuation of sound for the input parameters. The function returns the attenuation in decibels.


Platforms: Matlab

WeatherAlert allows you to enter multiple U.S Zip Codes and determine a jam-packed array of information that includes, current temperature, wind chill temperature, barametric pressure, Visibility, UV and Dewpoint. Nine day forecasts is also supported with day-to-day radar images


Platforms: Windows

Steam properties calculator Excel add-in based on IAPWS-97 standard which calculates 23 different properties such as: Temperature, Pressure, Enthalpy, Entropy, Quality, Density, Internal Energy, Isobaric Heat Capacity, Isochoric Heat Capacity, Specific volume, Speed of Sound, Thermal...


Platforms: Windows

MS Excel add-in that makes unit of measure conversions for units of measure in different categories(Amount of substance, Area, Density, Dynamic viscosity, Electric current, Enthalpic flow, Enthalpy, Entropic flow, Entropy, Length, Linear speed, Mass, Mass flow, Pressure, Temperature, Thermal...


Platforms: Windows

Sound absorption (attenuation) in humid air depends on frequency, temperature, relative humidity, and atmospheric pressure. This program calculates sound absorption (attenuation) in humid air using the ISO standard and the Bass forumla. The sound absorption is output in dB/meter.


Platforms: Matlab

Pump gas molecules to a box and see what happens as you change the volume, add or remove heat, change gravity, and more. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other.


Platforms: Mac

The Molecular Dynamics Adiabatic Piston model shows two gas samples within a horizontal cylinder that is divided by an insulated piston that moves without friction. It is a supplemental simulation for an article by Eric Gislason "A close examination of the motion of an adiabatic piston" in the...


Platforms: Mac

OilProp is designed to assess the core thermophysical properties of oil and its derivatives necessary to solve transportation and processing tasks, with the minimum volume of input data. It is based on regularities and statistics generally known in the area. OilProp solves the following tasks:...


Platforms: Windows

EBAS is a program for balancing chemical equations and stoichiometry calculations. Built in reagent database and concentration and ideal gas calculators simplify solving of all kinds of stoichiometry questions, both textbook and real life ones. To solve most questions it is enough to enter known...


Platforms: Windows

This is an educational program for the field of physics and chemistry, supported by simulations. This program is a type of graphic simulation, which is the mostimportant element for educational purposes. The program consists of nine sequences (substance classification, molecule motion, Diffusion,...


Platforms: Windows

A simple units converter. Supported properties/categories are: - Temperature - Angle - Pressure - Density - Volume - Volume Flow Rate - Power - Lenght - Energy - Mass - Area - Force - Acceleration - Speed (v. 1.1) - Data Transfer Rate (v. 1.1) - Time (v. 1.1) - Added following categories:...


Platforms: Mac

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). Full functional trial, free upgrade. Both Metric(SI)...


Platforms: Windows

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). Full functional trial, free upgrade. Both Metric(SI)...


Platforms: Windows

sun = sun_position(time, location)This function computes the sun position (zenith and azimuth angle at the observer location) as a function of the observer local time and position.It is an implementation of the algorithm presented by Reda et Andreas in: Reda, I., Andreas, A. (2003) Solar position...


Platforms: Matlab

PhysPro Fluid Properties is a physical properties estimation software that uses two powerful databases, both databases include over 400 fluids (including 55 common refrigerants). The software also include humid air properties and has the ability to estimate mixture properties using common...


Platforms: Windows, Windows 8, Windows 7

We use the genetic algorithm (gatool) to determine the three parameters of the simple Antoine equation and the six parameters of the Modified Antoine Model. Predictions are in perfect agreement with experimental data of vapor pressure of ethanol versus temperature for a temperature range from...


Platforms: Matlab