Reactor Coolant Channel Enthalpy Rise Calculator

Core Thermal-Hydraulics: Model subchannel coolant enthalpy rise $\Delta h(z)$, axial chopped cosine flux distribution, and bulk water temperature across active core height.

Core & Subchannel Operating Conditions

Core Active Height $H$ (m):

Inlet Temperature $T_{\text{in}}$ (°C):

Average Linear Power $q^{\prime}_{\text{avg}}$ (kW/m):

Axial Peaking Factor $F_z$:

Subchannel Flow Rate $\dot{m}$ (kg/s):

Operating Pressure $P$ (MPa):

Enthalpy Rise Hot Channel Factor $F_{\Delta H}$:

Enthalpy Rise & Channel Thermal State

Average Channel $\Delta h$

-- kJ/kg

Avg Exit Temp: -- °C

Hot Channel $\Delta h_{\text{hot}}$

-- kJ/kg

Hot Exit Temp: -- °C

Pin Total Thermal Power

-- kW

Peak Linear Power: -- kW/m

Saturation Temperature $T_{\text{sat}}$

-- °C

Exit Subcooling: -- °C

Axial Profile Insights:

• Extrapolated length ratio $H_e / H$: 1.14 (core reflector savings)

• Peak heat flux occurs at core midplane ($z = 0$)

• Maximum cladding temperature shifts downstream to $z \approx +0.18 H$

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Reactor Coolant Channel Enthalpy Rise Calculator

Core & Subchannel Operating Conditions

Enthalpy Rise & Channel Thermal State

Frequently Asked Questions