Fifteen modules built by HVAC and thermal engineers — chillers, AHUs, heat exchangers, cooling towers, psychrometrics — backed by CoolProp, PsychroLib, and validated correlations from industry standards. Pick a tool, run the math, ship a branded PDF.
Each module accepts inputs you already use — capacity, refrigerant, ambient — and returns a sized result with downloadable PDF.
AHRI 550/590 correction factors, CoolProp refrigerants, water- and air-cooled.
Coil + section design, OA/RA mixing, supply-air condition, fan power.
Compact brazed-plate sizing with refrigerant correlations and fouling.
Plate & frame exchanger sizing — water/water, single-pass.
TEMA shell-and-tube design with Bell-Delaware shell-side correlations.
Finned-tube HVAC coil — sensible/latent split, bypass factor, contact factor.
Heat pipe / thermosyphon limits — capillary, sonic, boiling, entrainment.
Rectangular microchannel HX with single- and two-phase flow.
Counterflow + crossflow towers — Merkel/effectiveness-NTU.
Packaged RTU selection, gas heat / electric, capacity-corrected.
Vapor compression cycle — air- and water-cooled, AHRI 460 corrected.
Centrifugal + axial fans — ESP, mass flow, motor power, sound.
Sensible heat recovery for ventilation — counter, cross, parallel.
FCU sizing + coil performance, single- and four-pipe configurations.
Psychrometrics, pipe ΔP, LMTD, NTU-ε, fluid props, unit converter.
Talk to a Hyphen engineer about org-level provisioning, equipment-library imports from your vendors, and approval policies tuned to your team's scale.
Every correlation is rooted in published standards (ASHRAE, AHRI, TEMA). Refrigerant + psychrometric properties via CoolProp / PsychroLib — never lookup tables guessed from a textbook scan.
Each calculation costs a fixed credit cost (1, 3, or 5). Backend failures auto-refund. Append-only ledger means the math behind every charge is reproducible.
Every successful run produces a branded PDF: engineer block, inputs, outputs, equipment selected, climate zone, ledger trail. Share with consultants or attach to a tender.