Newton convection, Stefan-Boltzmann net radiation with emissivity, the radiation...

{ "method": "GET", "queryParams": { "ambientC": 20, "areaM2": 1, "emissivity": 0.9, "hConvection": 10, "surfaceC": 100 }, "type": "http" }

{ "example": { "ambientK": 293.15, "asOf": "2026-10-21T06:33:56.625Z", "convectionW": 800, "degraded": false, "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.", "emissivity": 0.9, "fluxWPerM2": 1412.5474, "hCombined": 17.656843, "hConvection": 10, "hRadiation": 7.6568426, "notChecked": [ "how to pick h (depends on geometry, flow and fluid; the default is only a still-air ballpark)", "view factors and non-grey surfaces (the surface is treated as small and enclosed by the surroundings)", "…1 more" ], "radiationSharePct": 43.3647, "radiationW": 612.54741, "reasons": [ "Convection (Newton): q = h A (Ts - Tinf).", "Radiation: q = eps sigma A (Ts^4 - Tsur^4) with temperatures in kelvin.", "…2 more" ], "source": "computed locally (Newton q = h A dT; net radiation q = eps sigma A (Ts^4 - Tsur^4), sigma = 5.670374419e-8 W/(m2 K4))", "stefanBoltzmann": 5.670374419e-8, "summary": "Surface 100 C in 20 C air: convection 800 W + radiation 612.55 W = 1412.5 W (combined coefficient 17.66 W/(m2 K)).", "surfaceK": 373.15, "surroundingsK": 293.15, "totalW": 1412.5474, "verdict": "HEAT_LOSS_FROM_SURFACE" }, "type": "json" }