Spacecraft Heat Pipe CCHP Calculator

Spacecraft Thermal Control: Calculate axial groove / sintered wick capillary pumping limit, zero-g $(Q \cdot L_{eff})_{max}$, and temperature drop ($\Delta T$).

Heat Pipe Geometry & Fluid

Working Fluid:

Operating Temperature (°C):

Heat Transport Load $Q$ (W):

Evaporator Length $L_e$ (cm):

Condenser Length $L_c$ (cm):

Adiabatic Length $L_a$ (cm):

Vapor Core Diameter $D_v$ (mm):

Wick Type:

Capillary Limit & Thermal Metrics

Capillary Margin

-- %

Max Capacity $Q_{max}$

-- W

Effective Length $L_{eff}$

-- m

Total Pipe $Delta T$

-- °C

Fluid & Capillary Pressure Balance

• Capillary Pumping Head ($\Delta P_{c,max}$): -- Pa

• Liquid Pressure Drop ($\Delta P_l$): -- Pa

• Vapor Pressure Drop ($\Delta P_v$): -- Pa

• Effective Thermal Conductance ($G = Q/\Delta T$): -- W/°C

Recommended Tools & Equipment

Tested hardware and components for high reliability

100% Free Tool Zero Sign-Up

Spacecraft Heat Pipe CCHP Calculator

Heat Pipe Geometry & Fluid

Capillary Limit & Thermal Metrics

Fluid & Capillary Pressure Balance

Frequently Asked Questions