Recherche et développement

Calculs

CALCULS ET OUTILS D’INGÉNIERIE 

Dans notre travail et nos calculs, nous devons souvent effectuer des conversions entre unités. En outre, nous devons souvent ouvrir nos vieilles notes pour de simples calculs d’appoint, de purge et de paramètres similaires dans la conception de programmes de traitement de l’eau. Nous avons essayé de rassembler quelques calculs sur cette page pour votre commodité.

Area Calculator

Area Calculation (Metric)

Enter lengths of area to calculate:

What are you trying to find the area of?

Square or Rectangle

m.
m.

sq. m.

Circle

m.

sq. m.

Triangle (with a 90° angle)

m.
m.

sq. m.

Celsius to Fahrenheit Calculator

Temperature Converter

Enter Fahrenheit or Celsius to convert each other

Convert

°F

°C

Length Conversion Calculator

Length Converter

Enter imperial or metric unit to convert:

in

ft

yds

miles

mm

cm

m

km

Water Hardness Converter

Water Hardness Converter

Enter ppm CaCO3, dH° (German Hardness), fH° (French Hardness) values to convert each other;

Convert

°fH

ppm CaCO3

°dH

°fH

lbs to kg Calculator

lbs to kg / kg to lbs


convert pound [lbs] to kilogram [kg]

Enter lbs or kg to convert each other;
1 lbs = 0.45359237 kg
1 kg = 2.2046226218 lbs

Convert

kg

lbs

PSI to bar Calculator

PSI to bar / bar to PSI


pounds per square inch and bar are two popular pressure units.

Enter PSI or bar to convert each other;
1 psi = 0.0689475729 bar
1 bar = 14.503773773 psi

Convert

bar

psi

Corrosion Rate Calculation

Corrosion Rate Converter

Enter MPY or MMY to convert each other.

MPY - Mil per year

MMY - Millimeter per year

Convert

MMY

MPY

Percentage Calculator
%

Volume Calculator
meter
meter
meter

Volume Converter

Volume Converter

Enter values to convert each other

Convert

Gallon (US)

Liter

Permeate Calculator

Permeate Flow Calculation

Enter your raw or feed water flow and recovery rate and calculate hourly permeate production:

m3/h
%

m3/h

RO Recovery Rate Calculation

Recovery Rate Calculation

If we know feed water flow and permeate flow rate, we could calculate recovery rate and reject flow rate:

m3/h
m3/h

%

m3/h

RO Reject TDS Calculation

Reject TDS Calculation

TDS balance also could be calculated based on inlet TDS, salt passage, recovery rate and flows.

m3/h
m3/h

%

m3/h
ppm
%

ppm

ppm

Cooling Calculations

Evaporation Calculation

Enter your cooling tower performance values and calculate sufficient parameters.

m3/h
cycle

m3/h

m3/h

m3/h

 
 
Half Life Calculation

Half life value is very important while selecting the right biocide program.

m3

day

Boiler Calculations

Boiler Calculations

Enter your boiler performance values and calculate sufficient parameters.

microS/cm
microS/cm

cycle

m3/h

 

Boiler Limits

In a low pressure boiler systems the conductivity limits varies 7000-10000 microS/cm based on country legislations.

In this example, the maximum chloride limit is calculated according to the COC.

ppm

ppm

Dosage Calculation

Cooling Tower Dosage Calculations

Enter your cooling performance values and calculate sufficient parameters.

Continuous dosage (inhibitors)  

ppm
gr/cm3
m3/h

ml/min

ml/hour

 

Biocide dosage (intermittent)

ppm
gr/cm3
m3

lt/appl.

Geo Travelling Time Calculation

Geothermal Dosage Checks

Travelling Time

Travelling time check is crucial for the following product stability inside the capillary tube. For the phosphonates TT < 120 min 

m
mm

lt
lt

min

Geo Measure Tube/Dosage Calculation

Geothermal Dosage Checks

Measuring Cylinder Method 

Keeping time and observing suction of pump via measuring cylinder.

ml
sec

lt/h
Dosage Rate Calculation (ppm)

Calculating diluted solution dosage as ppm based on brine flow rate.

lt
lt

lt/lt
lt/h
gr/cm3
t/h

ppm

Nous utilisons de nombreux calculs et règles lorsque nous élaborons des programmes de traitement de l’eau. Vous trouverez ci-dessus quelques conversions simples ainsi que des calculs fréquemment utilisés pour l’eau de refroidissement, l’eau de chaudière, l’osmose inverse et les applications géothermiques spécifiques.

Vous pouvez également demander une méthode de calcul spécifique en ligne. Prenez contact avec nous !  Contacter