haiz Flashcards
What is the main objective of the study?
To develop and test an ocean wave energy harvester using flexible piezoelectric sensors
Where were the experiments conducted?
PEH-1 was tested along the beach area of Kuala Nerus, and
PEH-2 was tested in the coastal area of Pulau Bidong Laut.
What were the key findings?
High tide produced more power, 80% of power correlated with wind speed, and the harvester needed improvements for stability
how is this study relevant to ur research study
They provide valuable insights into the dynamics of power generation from ocean waves,
the impact of environmental factors like wind speed,
and the importance of stability in harsh marine conditions.
By understanding these aspects, we can optimize our vertical platform design, improve the stability and efficiency of our piezoelectric generators, and ensure that our system performs reliably i
What is the significance of using flexible piezoelectric sensors in the study?
can adapt to the movement of ocean waves, making them more efficient in converting mechanical energy into electrical energy.
Why was PEH-2 tested in the coastal area of Pulau Bidong Laut?
to evaluate its performance in a more challenging and open sea environment compared to the initial tests conducted with PEH-1.
What were the main challenges identified in the study?
The main challenges included the need for improved stability of the harvester in harsh open sea conditions and the need for further modifications to enhance its functionality.
How did wind speed affect the power output of the harvester?
Approximately 80% of the power harvested correlated linearly with wind speed, indicating that stronger winds, which create bigger waves, helped the harvester generate more power.
What recommendations did the researchers make for future improvements?
The researchers recommended several in-house modifications to enhance the functionality and stability of the piezoelectric energy harvester for use in more challenging marine environments.
What is the main difference between PEH-1 and PEH-2?
PEH-1 was a lab-scale model (smaller prototype) tested along the beach area of Kuala Nerus,
while PEH-2 was an upscaled version (advanced version) tested in the coastal area of Pulau Bidong Laut to gather more comprehensive data and insights
What does the term ‘in-house modifications’ refer to in the context of this study?
changes or improvements made by the research team themselves to enhance the device’s performance and stability without needing external help.
What were the key findings regarding the power output during high tide and low tide?
The study found that high tide produced more power compared to low tide, likely due to stronger and more frequent waves during high tide.
Why is it important to improve the stability of the piezoelectric energy harvester?
Improving stability is crucial to ensure the harvester can consistently generate power in rough and challenging sea conditions without being damaged or losing efficiency.
How does this study contribute to the field of sustainable energy?
The study demonstrates the feasibility of using piezoelectric materials for low-scale power harvesting from ocean waves, contributing to the development of sustainable and alternative energy sources.
What is the main purpose of using piezoelectric sensors in this study?
to convert the mechanical energy from ocean waves into electrical energy using the piezoelectric effect
How does the piezoelectric effect work?
:
generates an electric charge in response to mechanical stress or pressure applied to certain materials, such as the sensors used in this study
Why is it important to test the harvester in different environments?
:
helps evaluate the harvester’s performance under various conditions and identify areas for improvement to ensure it works effectively in real-world scenarios
What is the significance of the correlation between wind speed and power output?
The strong correlation indicates that wind speed significantly influences power generation, helping to identify optimal conditions for maximizing energy output.
