N-PHE

Plate & Frame Heat Exchangers are the workhorse of process heat transfer — compact, fully serviceable, and efficient across an enormous range of duties, from HVAC and district heating to chemical process cooling. Because the plate pack can be opened, reconfigured, and re-gasketed, they remain the default choice wherever maintainability matters as much as thermal performance.

N-PHE software sizes and rates these units from first-principles thermal-hydraulic calculations, not correlations borrowed from tube or shell exchangers. It calculates plate count, corrugation angle and chevron pattern effects, port sizing, pressure drop on both sides, and overall effectiveness — the same variables a plate manufacturer's own selection software would check, run independently so you're not relying on a vendor's own numbers to validate a vendor's own quote.

The edge is transparency. Every intermediate result — film coefficients, fouling margins, pressure drop breakdown — is visible and exportable, so an engineer can defend the design in a review instead of citing a black-box output. That matters most when a client, auditor, or EPC contractor asks 'how did you get this number,' and the honest answer needs to be more than 'the software said so.'

Typical inputs take under five minutes to enter — hot and cold side flow rates, temperatures, allowable pressure drop, and fluid properties — and the tool returns a complete plate specification along with a full performance summary, ready to hand to a fabricator or attach directly to a design package.