The app contains the following calculators:
1) Air cooler;
2) Control valve (liquids)
3) Flash steam;
4) Flow through orifice
5) Gas compressor;
6) Gas Properties;
7) Gas turbine;
8) Heat exchanger simulator
9) Packed tower;
10) Pressure drop;
12) Simulators: selection of thermodynamic package
13) Steam ejector;
14) Steam turbine;
15) Unit converter
*** AIR COOLER ***
The short-cut design procedure adopted in this sheet, can be used for rough sizing and cost estimating purposes. The procedure yields estimates of plot area, fan power requirements, and finned surface area for a typical air-cooled exchanger.
*** CONTROL VALVES (for liquids) ***
This sheet allows you to calculate globe valve's opening for liquid flow.
It can help you to verify the pressure drop of a globe valve for certain flow condition or to calculate unknown mass flow knowing valve's opening.
*** COMPRESSOR ***
This sheet allows you to estimate the absorbed power of a multistage compressor.
***FLOW THROUGH ORIFICE ***
This sheet allows you to calculate mass flowrate through a orifice plate.
***FLASH STEAM ***
This sheet allows you to estimate the flash steam released from hot condensate when its pressure is reduced.
*** GAS PROPERTIES ***
This sheet allows you to calculate the following properties for a gas:
- Molecular weight;
- Critical temperature and pressure;
- Acentric factor;
- Heat capacity;
- Thermal conductivity;
- Compressibility factor;
- Vapor pressure.
*** GAS TURBINE ***
This sheet allows you to calculate the perfomance of a gas turbine (simple cycle).
Two calculation mode are implemented:
> Check mode.
> Simulation mode.
Calculations are made under the assumption of air standard Brayton cycle.
*** HEAT EXCHANGER SIMULATOR ***
This sheet allows you to calculate outlet temperatures from existing shell&tube exchanger, if you know only inlet conditions of the fluids.
*** PRESSURE DROP ***
This sheet allows you to calculate pressure drop for liquids and gases along circular pipe.
Pressure loss in piping without any size changes occurs due to friction beetween the fluid and the pipe walls.
For incompressible flow, Darcy equation is used to calculate pressure drop along the pipe.
Another method is used for incompressible flow, infact, the flow of gases in long lines closely approximates isothermal conditions.
*** SIMULATORS: SELECTION OF THERMODYNAMIC PACKAGE ***
This sheet helps you to select right property package while using process simulators.
*** PUMP ***
This sheet allows you to calculate the perfomance of a pump in terms of absorbed power and efficiency.
Two calculation mode are implemented:
> Check mode - the app calculates: hydraulic head, absorbed power (knowing voltage and current) and pump efficiency.
> Simulation mode - assuming pump efficiency, the app calculates hydraulic head and absorbed power.
*** STEAM TURBINE ***
This sheet allows you to calculate: a)Produced power, b)Specific steam consumption, c)Outlet temperature d)Outlet vapor fraction e) Cooling water flowrate & Condenser duty (if a condenser is present).
Necessary input data are: a)Steam flowrate , b)Inlet steam conditions (P-T), c)Outlet pressure d)Turbine efficiency (due to the no-isentropic expansion of steam along turbine), e) Temperatures of cooling water (if a condenser is present).
*** STEAM EJECTOR ***
This sheet allows you to estimate motive steam consumption of a single stage ejector given the following input data: temperature, pressure, flow rate and gas composition of suction mixture.
*** PACKED TOWER ***
This sheet allows you to estimate %flooding and pressure drop for packed fractionators.
*** UNIT CONVERTER ***
A classic unit converter.
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Keywords: chemical engineering , process engineering , mechanical engineering , turbine , energy, process , industry , tools.
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