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Students who approach dissertation writing with a lot of enthusiasm and dedication often find themselves in an unexpected situation - they get failed in their dissertation defense. Moreover, doing a Phd dissertation is not a piece of cake. Writing a dissertation proposal is just the beginning of the journey. In order to succeed, you need to be equipped with up-to-date academic writing skill and knowledge about defending your research. Here we're going to discuss about the common reasons for failing in your dissertation defense and what can be done to improve your success rate.

Centrifugal blower fans are widely used in various industries for the movement of air or gas. They are crucial in maintaining the desired air flow rate and pressure in many applications, including HVAC systems, manufacturing processes, and ventilation systems. However, these fans can be energy-intensive, making it important to understand the energy efficiency aspects associated with them. In this article, we will discuss the efficiency of centrifugal blower fans at varying operating points, system resistance and efficiency optimization, and maintenance practices to sustain long-term efficiency.