chemical engineering Calculators
Reynolds Number Calculator
Determine whether fluid flow is laminar, transitional, or turbulent in a pipe. Engineers use this during pipe system design, pump sizing, and heat transfer analysis.
LMTD Heat Exchanger Calculator
Calculate the Log Mean Temperature Difference (LMTD) for counter-flow or parallel-flow heat exchangers. Used by engineers to size heat exchange area and evaluate thermal performance.
Fenske Equation Calculator
Find the minimum number of theoretical stages needed to separate a binary mixture by distillation at total reflux. Used during the conceptual design of distillation columns.
Pipe Pressure Drop Calculator
Calculate the pressure drop along a pipe due to friction using the Darcy-Weisbach equation. Essential for pump sizing, pipe network design, and energy consumption estimates.
Arrhenius Equation Calculator
Calculate the rate constant k of a chemical reaction at a given temperature using the Arrhenius equation. Used in reactor design, catalyst evaluation, and reaction kinetics studies.
Sherwood Number Calculator
Compute the Sherwood number to quantify convective mass transfer relative to molecular diffusion. Use it when designing absorbers, membranes, or any system where species transport rates matter.
Compressibility Factor Calculator
Estimate the compressibility factor Z of a real gas using reduced pressure, reduced temperature, and the acentric factor. Use this when modeling non-ideal gas behavior in process simulation or equation-of-state calculations.
Bubble Point Pressure Calculator
Calculate the bubble point pressure of a binary liquid mixture using Raoult's Law. Use it when designing distillation columns or flash drums to determine when a liquid first begins to vaporize.
Crystallizer Yield Calculator
Estimate the mass of crystals recovered from a solution based on initial concentration, final solubility, and solution volume. Use it to optimize batch crystallizer design and predict product output in pharmaceutical or chemical manufacturing.
Pump Power Calculator
Calculate the shaft power required to pump a fluid against a given head, accounting for flow rate, fluid density, and pump efficiency. Use it when sizing motors and selecting pumps for water, oil, or chemical service.
Distillation Column Theoretical Stages Calculator
Determine the number of theoretical trays needed to separate a binary mixture using the Fenske equation. Used by chemical engineers when designing or evaluating distillation columns.
Chemical Reactor Conversion Calculator
Calculate the required volume of a continuous stirred-tank reactor (CSTR) to achieve a target conversion for first- or second-order reactions. Essential for chemical process design and scale-up.
Pump Head and Power Calculator
Calculate the shaft power required to drive a centrifugal pump given flow rate, static head, friction losses, and pump efficiency. Use this when sizing pumps for piping systems.
Pipe Pressure Drop Calculator
Compute pressure drop across a straight pipe section using the Darcy-Weisbach equation. Used by engineers to size pipes and check whether pumps can overcome system resistance.
Gas Compressibility Factor Calculator
Calculate the real-gas compressibility factor Z from reduced temperature and pressure using the Pitzer correlation. Used in gas processing, pipeline hydraulics, and equation-of-state calculations.
Crystallization Yield Calculator
Estimate how many grams of crystals you can recover when cooling or evaporating a solution. Essential for pharmaceutical, food, and chemical engineers designing batch crystallization steps.
Mass Transfer Coefficient Calculator
Compute the convective mass transfer coefficient (k) for packed columns, bubble columns, or stirred reactors using dimensionless Reynolds and Schmidt number correlations. Used by chemical engineers sizing gas-liquid contactors.
Absorption Column Height Calculator
Determine the packed height of a gas absorption column needed to reduce a contaminant from a known inlet concentration to a target outlet concentration. Useful for designing scrubbers treating SO₂, CO₂, NH₃, and similar gases.
Evaporator Heat Balance Calculator
Calculate the steam consumption rate (kg/h) for a single-effect evaporator concentrating a dilute feed to a target product concentration. Helps process engineers size steam supply and heat transfer area.
Distillation Column Theoretical Plates Calculator
Estimates the minimum number of theoretical plates needed to separate a binary mixture by distillation. Use this when designing or evaluating a distillation column at total reflux conditions.
CSTR Reactor Design Calculator
Calculates the residence time and required reactor volume for a Continuous Stirred Tank Reactor (CSTR) given reaction order, flow rate, and conversion. Essential for chemical reactor design and scale-up.
Centrifugal Pump Sizing Calculator
Calculate the shaft power required to drive a centrifugal pump given flow rate, total head, and combined pump and motor efficiency. Used when selecting a pump-motor set for fluid transfer systems.
Pipe Flow Pressure Drop Calculator
Compute pressure drop along a straight pipe section using the Darcy-Weisbach equation, with automatic friction factor selection for laminar or turbulent flow. Essential for sizing pipes and checking pump requirements.
Absorption Column Height Calculator
Determine the required packed bed height for a gas absorption column using mass transfer coefficients and equilibrium data. Used by process engineers designing scrubbers and gas treatment systems.
Crystallization Yield Calculator
Estimate theoretical crystallization yield when cooling a saturated solution from a hot to a cold temperature, based on solubility difference. Used in pharmaceutical, food, and specialty chemical processes to predict crystal recovery.
Fluidized Bed Minimum Velocity Calculator
Determines the minimum fluidization velocity for particles in a fluid bed reactor. Use it when designing fluidized bed combustors, catalytic crackers, or dryers to ensure proper bed expansion.
Multiple Effect Evaporator Calculator
Calculates the steam consumption per effect and total water evaporated in a multiple-effect evaporator system. Use it when designing industrial concentration processes for food, chemical, or pharmaceutical liquids.
Membrane Separation Flux Calculator
Computes the required membrane area for reverse osmosis or ultrafiltration systems given flow rate, recovery, and pressure conditions. Use it when sizing membranes for water treatment, desalination, or industrial separation plants.
McCabe-Thiele Method Calculator
Estimates the number of theoretical trays needed to separate a binary mixture by distillation given compositions, reflux ratio, and relative volatility. Useful for preliminary column design and feasibility studies.
Pump NPSH Calculator
Calculates the Net Positive Suction Head available (NPSHa) for a centrifugal pump installation to verify cavitation will not occur. Use it whenever sizing pump suction lines or repositioning a pump relative to its fluid source.
Absorption Column Height Calculator
Determines the required packed bed height for a gas absorption column based on gas flow rate, inlet/outlet concentrations, and mass transfer coefficient. Used by chemical engineers designing scrubbers and stripping columns.
Crystallizer Yield Calculator
Estimates the mass of crystals obtained from a cooling crystallization process given initial concentration, temperature drop, and solubility data. Ideal for process chemists optimising batch crystallizer design.
Compressor Power Calculator
Calculates the shaft power needed to compress a gas from a given inlet pressure to a target outlet pressure using isentropic or polytropic compression theory. Essential for sizing compressors in chemical and gas processing plants.
Evaporator Steam Economy Calculator
Estimates the steam economy of a multi-effect evaporation system — the kilograms of water evaporated per kilogram of steam consumed. Used to evaluate and compare the energy efficiency of industrial evaporators.
Heat Exchanger Effectiveness Calculator
Computes heat exchanger thermal effectiveness (ε) using the NTU-effectiveness method for parallel-flow, counter-flow, and cross-flow configurations. Used by engineers to evaluate or size heat exchangers without knowing outlet temperatures.
Centrifugal Pump Sizing and Power Calculator
Determine the brake horsepower required to drive a centrifugal pump given flow rate, total head, and fluid properties. Used by engineers during pump selection and system design to match motor size to process requirements.
Cooling Tower Performance Calculator
Evaluate a cooling tower's thermal effectiveness by comparing its actual temperature reduction to the maximum thermodynamically possible. Used by HVAC and process engineers to benchmark tower performance and diagnose fouling or airflow issues.
Vapor Pressure Calculator (Antoine Equation)
Calculate the vapor pressure of common chemicals at a given temperature using the Antoine equation and built-in constants for water, benzene, toluene, and ethanol. Essential for distillation design, safety assessments, and environmental modeling.
Gas Absorption Column Design Calculator
Design a packed gas absorption column by calculating the number of overall gas-phase transfer units (NOG) and total column height needed to achieve a target gas-phase separation. Used in scrubber design for air pollution control and chemical processing.
Chemical Reactor Residence Time Calculator
Calculate the exit concentration and conversion for a CSTR or PFR reactor with first-order kinetics given reactor volume, flow rate, and rate constant. Used by chemical engineers to size reactors and predict performance during process design.
Centrifugal Pump Sizing and NPSH Calculator
Size centrifugal pumps by calculating shaft power and net positive suction head (NPSH). Use this when selecting a pump for water supply, chemical transfer, or HVAC systems.
Pipeline Pressure Drop Calculator
Calculate frictional pressure drop in pipelines using the Darcy-Weisbach equation. Essential for pipe sizing, pump selection, and flow system design in oil, gas, water, and chemical industries.
Adsorption Isotherm Calculator
Compute equilibrium adsorption capacity using Langmuir or Freundlich isotherm models. Used by environmental and chemical engineers to design activated carbon beds, ion-exchange columns, and water treatment systems.