Date of Award

Summer 2023

Document Type

Open Access Thesis


Mechanical Engineering

First Advisor

Adel Nasiri


Controlling and transforming electrical power from one form into another is the Primary function of the power electronics systems that are employed today. These systems have a wide variety of applications and are utilized in things like industrial automation, electric cars, consumer electronics, and renewable energy systems, among other things. The functioning of power electronics systems results in the production of a substantial quantity of heat, despite the fact that these systems are very dependable and efficient. This heat must be dispersed to preserve system performance and avoid component damage. By ensuring that the working temperature of the components stays within a safe range, cooling systems play a significant part in the performance and reliability of power electronics systems.

Air and liquid cooling are the two primary cooling technologies used in power electronics systems. To transfer heat from the devices to the surrounding air, air cooling employed forced air cooling and natural convection. This approach is uncomplicated, does not involve a significant financial investment, and does not demand any kind of maintenance. Yet, its efficiency is limited not only by the surrounding air temperature but also by the thermal resistance of the components. On the other hand, liquid cooling moves heat away from the devices and into a heat exchanger by transferring it via a fluid. This approach is more efficient than using air to cool the semiconductor devices because the fluid is able to transfer heat away from the devices in a more effective manner.

In recent years, one of the most common approaches to the problem of regulating thermal loads of power electronics systems has been the use of water-cooling systems. Water cooling systems can remove heat from localized areas of high temperature, which is one of the most important benefits offered by this method. Some of the components in power electronic systems create more heat than others, which results in the formation of hotspots. Water cooling systems may effectively remove the heat from these hotspots.

In the study in addition to designing a cooling system for this power system, the impact of four different parameters, which are the cold plate material, channel shape, channel size, and coolant inlet velocity, have been investigated. The research examined and analyzed these factors to give cooling system design and optimization insights. This study might improve power system performance, reliability, and durability by improving heat dissipation and thermal management.