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- Conference Paper:
Abidin et al.
Ocean Thermal Energy Conversion (OTEC) harnesses thermal energy stored at different seawater depths via power generation from a thermodynamic closed-loop cyclical system. Apart from its consistent energy generation, it could be diversified into other side industries, making OTEC an attractive and sustainable source of renewable energy. However, the process that utilises seawater as its main…
- Conference Paper:
Halimi and Generanta
Nowadays, the energy demand is continuous increasing due to the growing population in the world. However, the major primary energy resources, fossil fuels, are inadequate. Thus, it is required to find another energy resources, especially the renewable ones, to meet the energy demand. One of prospective renewable energy resources is marine energy. In this paper, an ammonia-water zeotropic…
- Journal Article:
Lee et al.
An azeotropic mixture of R32/R290 is proposed for both building air-conditioning and ocean thermal energy conversion (OTEC) applications. R32/R290 is an environmentally safe working fluid mixture with no ozone depletion potential (ODP) and low global warming potential (GWP). This mixture can successfully replace R410A used in many residential air-conditioners and heat pumps since its GWP is…
- Conference Paper:
Colaleo et al.
The environmental consequences due to the construction and installation of energy conversion systems that exploit the marine waves have not been taken into high consideration so far. The reasons are related to the fact that these devices are still under development and not many systems have been built. However, with the growth in the number of projects and tests at sea, potential environmental…
- Journal Article:
Zhang and Bian
In this study, a combined cooling and power system is constructed based on the Guohai Cycle, and the cooling and power output performance of the cycle is analyzed by numerical simulation. In the scope of this study, it can be clearly seen that the improvement of thermal efficiency and primary energy rate in the combined cooling and power system. In addition, the effects of operating conditions…
- Journal Article:
Miquel et al.
This work presents the MoonWEC, a new device for wave energy conversion. This new concept encompasses several working principles as the heaving point absorber, the oscillating water column and the overtopping. The development of the new WEC has been carried out through numerical modelling. Three main parts of the device have been simulated: a hollow floating structure, a central moonpool and a…
- Conference Paper:
Calheiros-Cabral et al.
Harnessing and using marine renewable energy at seaports is a promising solution to put these energy intensive infrastructures on the right track to energy self-sufficiency and environmental sustainability, reducing their carbon footprint. This paper presents a summary of the main conclusions and achievements of a recently concluded R&D project that encompassed the experimental study of an…
- Journal Article:
Etemadi et al.
With considering the increasing of global temperature, and also the concern of global climate change, many policy makers worldwide have been accepted the importance of reducing greenhouse gas emissions, in particular from the power industries. Energy resource use is one of the most important and contentious issues of our time. The ocean provides a vast source of potential energy resources. Of…
- Journal Article:
Hubner et al.
The present study aims to evaluate the difference in the fluid-dynamic behavior of an overtopping wave energy converter under the incidence of irregular waves based on a realistic sea state when compared to the incidence of regular waves, representative of this sea state. Thus, the sea data of three regions from the Rio Grande do Sul coast, Brazil, were considered. Fluent software was employed…
- Journal Article:
Buccino et al.
The cost-effective utilization of wave energy is still a major engineering challenge. Shoreline locations for Wave Energy Converters (WECs) offer lower wave energy densities when compared with offshore locations, but give significant advantages from the points of view of construction, maintenance and grid connection.
This article provides a first analysis on the viability of a very low-…
- Journal Article:
Wang et al.
To alleviate the consequences of the freshwater crisis and fully utilize marine resources in tropical coastal areas, this study presents a low-pressure flash evaporation desalination system driven by ocean thermal energy (OTE). Through gravity and atmospheric pressure, a natural vacuum can be formed in the evaporator, which achieves flash evaporation for warm surface seawater. Then, the vapour…
- Journal Article:
Yilmaz
In this study, comprehensive thermodynamic performance and economic evaluation of the ocean thermal energy conversion (OTEC) and wind turbine combined hybrid plant is investigated. The proposed system consists of the two main sub-cycles, which are isobutene working fluid ocean thermal energy conversion system and wind turbine. The proposed study is projected to meet the daily total…
- Journal Article:
Ikegami et al.
The hybrid OTEC (H-OTEC) cycle is a system integrating a desalination and an OTEC which generates power using the temperature difference between the surface and depth in the ocean. The system is, therefore, able to produce the electric power and the distilled water from seawater, simultaneously. The cycle uses low pressure steam as warm heat source generated by the flash evaporation in…
- Journal Article:
Ishida et al.
An Integrated Hybrid Ocean Thermal Energy Conversion (I-H OTEC) system is one of the OTEC systems. This system is composed of electric generating plant and desalination plant. The submarine topography of east side of Kumejima region is suitable for arranging pipelines to take in deep ocean water. Therefore, Kumejima region is one of the place that is expected to construct an OTEC plant, and…
- Journal Article:
Miyazono et al.
A hybrid ocean thermal energy conversion (H-OTEC) system combines an ocean thermal energy conversion (OTEC) system, which generates electricity using the temperature difference between the surface and deep layers of the ocean, with a flash desalination system to produce freshwater from seawater. The H-OTEC generates steam by vacuuming the warm seawater and convey the steam to the power…
- Journal Article:
Li et al.
Worldwide increasing energy demands promote development of environment-friendly energy sources. As consequences, ocean wave is exploited as an ideal energy source to mitigate greenhouse gas emissions. In this paper, a hydraulic energy-storage wave energy conversion system is constructed, and a mathematical model of main components is built for analysis. Control strategies of generator-side and…
- Journal Article:
Cascajo et al.
A feasibility study for the installation of Wave Energy Converters (WEC) in a Spanish Mediterranean port is evaluated in this paper. The final aim is to evaluate the possibility of building a new infrastructure which combines a breakwater and a WEC able to provide energy to the commercial port of Valencia. An estimation of the wave power potential is made according to existing databases from…
- Journal Article:
Fernandez et al.
For wave energy to become a fully-fledged renewable, efficient and reliable Wave Energy Converters (WECs) must be developed. The objectives of this article are to present WaveCat, a recently patented WEC, and its proof of concept by means of an experimental campaign in a large wave tank. WaveCat is a floating WEC whose principle of operation is oblique overtopping; designed for offshore…
- Journal Article:
Vicinanza and Frigaard
Any kind of Wave Energy Converter (WEC) requires information on how optimize the device in terms of hydraulic performances and structural responses. This paper presents results on wave loading acting on an innovative caisson breakwater for electricity production. The Seawave Slot-Cone Generator (SSG) concept is based on the known principle of overtopping and storing the wave energy in several…
- Journal Article:
Salimi et al.
The applicability of Sea-wave Slot-cone Generator breakwater as a system of energy converter in the southern coasts of Iran is investigated. Several efficient factors simultaneously have been considered, including the period and the significant height of wave, the effective depth, and the hydraulic efficiency. The field data used in this study are those derived from the stationary buoys.…
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