Heat Sink Calculator Excel

The flow between the fins of the heat sink will the modeled as internal fully developed flow.

Heat sink calculator excel. The the width w of the heat sink spacing between the fins s and number of fins n will then be calculated for the selected values of l and h. Steady state or transient solutions are available for forced are natural convection. Heat sink sizing calculations in order to calculate the heat transfer characteristics of the heat sink the convection coefficient h must be calculated. The heat source is assumed to cover the entire base of the heat sink.

Fin spacing height and thickness. Heat sink convection with fins calculator. This tool is designed to calculate junction temperature of an electronic device typically power devices given four parameters.

Heat transfer by convection of a heat sink with fins calculator and equations. The heat sink size calculator first calculates the optimum spacing between the fins to achieve maximum convection cooling. Fins are used to increase heat transfer area and provide a cooling effect. The heat sink calculator is easy to use enter the parameters except the one you want to calculate and then press calculate see example below.

It has the following features. A reference link has been placed below the calculator for further reading. Heat sink calculator is a tool for designing analysing and optimizing heat sink performance contact us today for custom heatsink solutions. The heat sink calculator is very useful when you are choosing power transistors heat sink etc.

However if h a p k is greater than 1 00 the fins will insulate and prevent heat flow. A fin n ed heat sink temperature distribution can be determined given heat sources. Heat transfer design and engineering. In our experience it generally estimates the overall heat sink volume within 15 of a final design.

Et heat sink v1 0 this module is an excel com add in. Calculate the thermal resistance and pressure drop of a plate fin heat sink and study how individual parameters affect the heat sink performance. The width of the heat sink is then calculated based on the number of fins required to dissipate the heat from the heat sink. How does the heat sink calculator work.

Values for l and h are first chosen based on your heat sink design constraints. The convection heat dissipation q c1 from area a 1 the external side surfaces of the heat sink shown figure 2 is first.