Is this flight software?

No. SIDUS models are educational reimplementations. Cross-check before any flight decision.

Two-phase pumped loop

Latent-heat mass flow Q/(Δx h_fg) against single-phase Q/(c_p ΔT), volumetric flow and liquid pump power.

SIDUS educational calculator. Category utilities. Tags: operations, power, satellite, thermal, utilities. Pure SI. Not flight software.

ṁ = Q / (Δx h_fg) vs Q / (c_p ΔT)

Two-phase loop mass flow and pump power

NIST Chemistry WebBook: thermophysical properties of fluid systems (NIST Standard Reference Database 69): Saturation h_fg, liquid density, liquid c_p and p_sat used as fluid presets (20 °C rows; water also at 100 °C).
Spacecraft Thermal Control Handbook, Vol. I (D. G. Gilmore (ed.), The Aerospace Press / AIAA): Radiator environment loads (solar, albedo, Earth IR, view factors), pumped loops, heat pumps.
A Heat Transfer Textbook (J. H. Lienhard IV and V, MIT (free download)): Thermal resistance networks, latent-heat energy balance, radiation basics.
Why we should train AI in space (white paper) (Lumen Orbit / Starcloud: Feilden, Oltean, Johnston (September 2024)): Worked radiator example (ε 0.92, α 0.09, F 0.25, 20 °C), 5 GW / 4 km × 4 km array, dawn-dusk SSO rationale, shield scaling. SIDUS reimplements the physics independently and applies ε to the Earth-IR term by default. No affiliation.

Read /llms.txt or call https://sidus.tools/api/mcp. Open the interactive page for live SI inputs.