Abstract

This study proposes a piezoelectric wave energy harvester (PWEH) that integrates a unidirectional rotation mechanism with piezoelectric power generation components using buoys with added mass. By formulating the structural configuration of the buoy and augmenting the mass of the buoy, the nherent frequency of the buoy is modified to synchronize with the oscillation of the waves. A rotating cam is employed to trigger vibrations in the piezoelectric cantilever beam, resulting in a consistent gener...

Abstract

Ocean energy has been identified as an innovative energy source and is expected to play a crucial role in Taiwan's pathway to net-zero emissions by 2050. One of the challenges in developing wave energy converters (WECs) arises from the intermittency of wave energy, in which the incident wave energy can fluctuate significantly within several seconds. This study focuses on the maximum power point tracking (MPPT) of a point-absorber wave energy converter (PA-WEC) under irregular wave conditions. To...

Abstract

Climate change has been scientifically established as an urgent global challenge with significant impacts, drawing substantial international attention. In response, many countries have committed to achieving "Net Zero Emissions by 2050" and are actively implementing policies to mitigate its effects. Ocean thermal energy conversion (OTEC) technology has emerged as a promising renewable energy source, capable of generating electricity by exploiting the temperature difference between warm surface...

Abstract

This study presents a comprehensive analysis of data quality from Acoustic Doppler Current Profiler (ADCP) observations in the strong Kuroshio current off southeastern Taiwan, comparing two mooring designs: the "Elliptical ADCP Buoy" (EAB) and "StableMoor Mooring Buoy" (SMB). The Kuroshio current is critical for understanding regional ocean dynamics, climate variability, and marine ecosystems. Accurate ADCP measurements are vital for capturing the current's velocity structure, and data quality c...

Abstract

Taiwan's unique marine geologic setting, marked by complex tectonic features and active hydrothermal systems, offers critical insights into Earth's geological processes and renewable energy resources. This paper reviews the progress in marine geothermal research in Taiwan, including the development of instruments, field measurements, data analysis, thermal modeling, and interpretations, laying the groundwork for future exploration and development. The use of Lister-Type Heat Probes (LTHP) and M...