In ME 412 Heat Transfer Laboratory each team will design, model, build, and test a heat pipe to operate at low pressure. The design objective is to effectively remove heat from a liter of boiling water. An additional objective is to understand the thermal-fluid principles of heat pipes through modeling, simulating and/or reviewing existing experimental and computational works. For testing, each team will have 15 minutes to set up, demonstrate, and dissemble their pipe. Cooling is provided by ambient air. A vacuum pump will be available to lower the pressure inside the heat pipe. Each team will also prepare a power-point slideshow or video clip for the audience to explain their design decisions, analysis and operation of their heat pipe.