This site-wide search returns results for all documents and events in Tethys Engineering, prioritizing the best matches. Partial word matches are returned (e.g. "engineer" finds "engineering"), but every entered term must be found. If you don't find any results, try reducing the number of words entered or removing special characters. Filters to the right can help narrow your search. Tethys Engineering features an integrated search with other marine renewable energy databases in PRIMRE - click the buttons below "Showing Results for" to search other integrated databases.
Showing Results for
- Book Chapter:
Belibassakis and Magkouris
Wave-structure interaction is an important topic concerning the modelling and performance optimization of Wave Energy Converters (WECs) operating in nearshore and coastal areas. In this work a BEM is developed and applied to the investigation of variable bathymetry (bottom slope and curvature) effects on the performance of surge-type wave energy converters excited by harmonic monochromatic…
- Book Chapter:
Kamarlouei et al.
The objective of this paper is to present the experimental methodologies and challenges of testing a wave energy converter array, concentrically attached to a semisubmersible platform, and in presence of wind thrust forces and moments. The tower of a wind turbine has been placed in the center of the platform and connected to a mass-pulley system through a light weight cable to simulate the…
- Book Chapter:
Rony et al.
A submerged tension-leg-platform for offshore wind turbine combined with a heaving type point absorber wave energy converter is analysed considering different configurations of array of wave energy converters. A time domain simulation is performed for the combined platform using fully coupled aero-hydro-servo-elastic simulation. The analysis is performed to study the effect of different…
- Book Chapter:
Blanco et al.
This chapter is focused on Power Take-Off (PTO) systems for wave energy converters (WEC), being one of the most important elements since PTOs are responsible to transform the mechanical power captured from the waves into electricity. It presents Direct-Drive PTO (DDPTO) as one of the most reliable solutions to be adapted to…
- Book Chapter:
Hossain and Petrovic
The chapter explores the origins of ocean power, the three types of energy captured from the oceans, the energy from the motion of the waves, the energy from the tides, and from using temperature gradient in oceans. The main onshore and offshore ocean wave technologies are described. Tidal origins, fundamentals, and power-…
- Book Chapter:
Khan
The chapter describes the geological and legal aspects of the continental margin, including its marine resources, of the Bay of Bengal, especially its northern part adjacent to Bangladesh. The maximum width of the continental shelf is 216 km (117 nm, nautical miles) from the Bangladesh coastal plain. On the contrary, court verdicts have given Bangladesh entitlement to 118,813 sq km of sea area…
- Book Chapter:
Tavakoli et al.
Hydrokinetic energy contains the major uncontrolled source of renewable marine energy. The highest level of converter technology readiness offered in the last three decades is TRL8–9, which is related to the first-generation horizontal axis converters. In low-depth calm waters, one of the best options to harvest tidal energy is vertical axis turbines. About 16% of the…
- Book Chapter:
Whiting et al.
Marine energy involves capturing power from ocean currents and waves, and natural gradients of temperature and salinity. In nearly 20 years of modern development, the industry has generated considerable knowledge around resource assessment, site selection, technology design, manufacturing, testing, environmental effects, and standardization. The Portal and Repository for Information on Marine…
- Book Chapter:
Ashby
Waves are generated by wind. The drag on the water surface builds them up. They continue long after the wind has dropped, so they are a more dependable source of energy than the wind itself. Waves on the Atlantic coast of Europe or the Pacific coasts of the US or Australia carry as much as 40 kW per meter. Many schemes for harvesting wave power have been suggested. Four have…
- Book Chapter:
Neill
The energy supply sector is the largest contributor to global greenhouse gas emissions. The ocean offers many options for reducing greenhouse gas, particularly through the development of renewable energy technologies. However, although the ocean holds vast amounts of energy, it is drastically underdeveloped. In this chapter, the nature and key aspects of these ocean renewable energy options…
- Book Chapter:
Zheng et al.
A submerged elastic plate can work as a plate–wave energy converter (WEC) to capture wave power provided that piezoelectric layers are bonded to both faces of the flexible substrate. In this paper, the performance of a piezoelectric plate is investigated. The plate–WEC is simulated by a submerged elastic disk, which can be either simply supported or clamped at the edge. A theoretical model…
- Book Chapter:
Ettema et al.
Floating tidal turbine systems have seen increasing popularity in recent years with floating devices designed to reduce installation and maintenance costs. This paper investigates whether the necessary buoyancy aids can also be used as a tidal fence sidewall to improve the hydrodynamic performance of the turbines. Following a numerical design process, an experimental investigation was…
- Book Chapter:
Sentchev et al.
Alderney Race, located between the Alderney Island (UK) and Cotentin Peninsular (France), is a site with high tidal-stream energy potential. Circulation through Alderney Race is complex, largely dominated by tides with current speed exceeding 5 m/s at spring tide. Current velocity measurements from two bottom-mounted ADCP are used to assess the variability of velocity and turbulence in the…
- Book Chapter:
Nagaraja et al.
The existence of sunlight, air, and different resources on Earth must be used wisely for human welfare while also safeguarding the environment and its living creatures. The use of the sunlight and air as a significant source of renewable energy (RE) is already an object of research and development in recent years. The high integration costs of various RE energy sources are a significant hurdle…
- Book Chapter:
Shahroozi et al.
To avoid over-designing wave energy converters (WECs), their reliability and survivability aspects need to be accurately addressed. The most common failure modes are: instantaneous failure due to high instantaneous loads, and fatigue failure due to the accumulated damage in the structure during years of operation. Here, we present a fatigue analysis of a point-absorber WEC in sea states…
- Book Chapter:
Penalba et al.
Nonlinear effects are demonstrated to be relevant for different aspects on the development of wave energy converters with a particular importance on the assessment of the behaviour and power production capabilities, and design of mooring lines and energy maximising controllers. However, mathematical models that incorporate relevant nonlinear effects beyond the viscous effects are scarce and…
Displaying 141 - 156 of 156