Core chemical & process engineering tools — fluid mechanics, heat and mass transfer, reaction engineering, thermodynamics, separations, and FE/PE Chemical exam prep.
Determine whether pipe flow is laminar, transitional, or turbulent from fluid density, velocity, pipe diameter, and viscosity. Returns the Reynolds number and color-codes the flow regime against the 2300 and 4000 transition points.
Compute frictional pressure drop and head loss along a pipe with the Darcy-Weisbach equation. Solves the Reynolds number and the friction factor (laminar 64/Re or the Swamee-Jain turbulent correlation) automatically.
Calculate the Net Positive Suction Head available from atmospheric and vapor pressure, static head, and friction loss, then compare it to the pump NPSH required to flag cavitation risk and the safety margin.
Find the log-mean temperature difference and heat duty for counter-current or co-current heat exchangers. Enter the four terminal temperatures plus U and area to get LMTD and Q = U·A·ΔT_lm.
Solve a steady-state overall and single-component material balance for two streams mixing into one. Returns the outlet flow, outlet composition, and component mass flow — the foundation of every process calculation.
Solve PV = nRT for any unknown variable and compute gas density and molar volume from molar mass. Works in SI units with the universal gas constant and shows the full substitution.
Compute fractional conversion and size an ideal CSTR or PFR for a first-order liquid-phase reaction. Compare the two reactor volumes for the same duty and see why a PFR is almost always smaller.
Estimate a pure-component vapor pressure at a given temperature with the Antoine equation, and solve the inverse problem — the boiling temperature at a specified pressure. Ships with water constants and accepts your own A, B, C.
Apply the mechanical energy balance between two points in a flowing fluid to solve for downstream pressure from velocity, elevation, and head-loss changes. The workhorse of pipe-network and metering problems.
Convert the units that trip up process calculations — volumetric flow, pressure, and dynamic viscosity — between SI and US customary units in one place, so your mass balances and pump curves stay consistent.
Chemical and process engineering centers on the NCEES licensure ladder — FE Chemical → PE Chemical — supplemented by specialty process-safety credentials built on OSHA PSM and CCPS risk-based process safety. This overview maps what each covers, who administers it, and how they ladder.
FE Chemical prep: math & statistics, engineering economics, material & energy balances, thermodynamics, transport (fluids, heat, mass), reaction engineering, process control, and safety — the gateway to PE licensure.
PE Chemical prep: mass & energy balances, thermodynamics and phase equilibria, fluid mechanics, heat & mass transfer, separations, reaction engineering, process control, design/economics, and process safety — the licensure exam.
Process Safety & PSM Fundamentals prep: the OSHA PSM elements, HAZOP and LOPA, relief/flare design, inherently safer design, EPA RMP, and CCPS risk-based process safety — the chemical engineer’s safety core.