Optimization of a closed-cycle otec system

Author: iynd

August undefined, 2024

WebRecent studies of OTEC systems have focused on the stabilization and control of system operations. In Japan, studies adopting PI control to reduce the time taken to achieve the desired output, as well as developing a control system for the OTEC cycle’s flow rate, are underway [10,11].In advance of studies on the control optimization of such a system, a … WebFeb 23, 2024 · In closed-cycle OTEC, there is a long, closed loop of pipeline filled with a fluid such as ammonia, which has a very low-boiling point (−33°C or 28°F). (Other fluids, including propane and various low-boiling …

Thermodynamic Optimization in Ocean Thermal Energy Conversion …

WebNov 1, 1990 · Optimization of a closed OTEC system with a dual-zoned condenser coupled to an RO desalination unit Conference Jacobs, G - Alternative Energy Sources; (United … WebMar 15, 2024 · This paper provides an overview of studies on closed thermodynamic cycles and the numerous difficulties that OTEC technology faces. A description of the thermodynamic cycles incorporating mixed or pure working fluids, as well as the implications of different working fluids on cycle efficiency were also studied. flow bg

Optimization of a closed-cycle OTEC system - OSTI.GOV

WebJan 1, 1990 · Determination of the optimum design and operating conditions for the closed-cycle OTEC plant has drawn much interest in recent years. Industrial engineering … WebNov 22, 2024 · Ocean thermal energy conversion (OTEC) uses the natural thermal gradient in the sea. It has been investigated to make it competitive with conventional power plants, as it has huge potential and... WebDec 25, 2024 · Faizal et al. [12] designed and built a closed cycle OTEC demonstration plant to experimentally investigate the relationship between thermal efficiency and seawater flowrate. Yang et al. [13] conducted optimization of … flow bgm

Closed Cycle OTEC System Download Scientific Diagram

An innovative Organic Rankine Cycle (ORC) based Ocean

WebJun 29, 2015 · The results showed that the energy and exergy efficiencies of the integrated OTEC system are 3.6% and 22.7% respectively, and the exergy efficiency of the PEM electrolyzer is about 56.5% while the amount of hydrogen produced by it is 1.2 kg/h. http://large.stanford.edu/courses/2016/ph240/hyatt2/docs/finney.pdf flow bid lot winstonWebFeb 1, 2024 · [10] Uehara H. and Ikegami Y. 1990 Optimization of a Closed-cycle OTEC System Transaction of the ASME Journal of Solar Energy Engineering 112 247-256. Google Scholar [11] Yeh R H, Su T Z and Yang M S 2005 Maximum Output of an OTEC Power Plant Ocean Engineering 32 685-700. Google Scholar flow bgp

"WebJun 1, 2024 · This article reports the off-design performance analysis of a closed-cycle ocean thermal energy conversion (OTEC) system when a solar thermal collector is … " - Optimization of a closed-cycle otec system

Optimization of a closed-cycle otec system

Multi-objective optimization of an ocean thermal energy conversion …

WebMar 1, 2013 · An ocean thermal energy conversion (OTEC) plant is basically a heat engine that utilizes the temperature difference between the warm surface water and deep cold seawater to drive a turbine to produce electricity, using the principles of a Rankine cycle [1].A closed cycle OTEC system incorporates a working fluid operating between two heat … WebA multi-objective optimization method based on a fast and elitist non-dominated sorting genetic algorithm (NSGA-II) is applied to determine the best design parameters for the system. The total...

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WebThis particular OTEC plant run by PICHTR is an open cycle OTEC system. [2] There are multiple different types of OTEC systems and I will be focusing on open cycle OTEC and closed cycle OTEC. [2] Closed Cycle OTEC. Closed cycle OTEC is D'Arsonval's original concept of OTEC. [2] In a closed cycle system, the working fluid is evaporated by the ... WebUehara H. and Ikegami Y. (1990) Optimization of a closed-cycle OTEC system, Trans, of the ASME Journal of Solar Energy Engineering, 112-4, 247–256 CrossRef Google Scholar Ikegami Y. and Uehara H. (1992) Performance analysis of OTEC plants at off-design conditions: ammonia as working fluid, ASME, Solar Engineering 1992, 633–638 Google …

WebNov 1, 2024 · OTEC is a system using the temperature difference between the warm surface seawater and cold deep seawater of the ocean to produce thermal energy and connected with a generator is capable to produce electricity [17] (see Fig. 1).However, in order to obtain the highest possible efficiency the thermal gradient between the surface and the deep …

WebFeb 27, 2024 · The closed-cycle Mini-OTEC unit, constructed by the United States, is capable of producing a net 18.8 ... Optimization is another way to improve the performance of OTEC. ... (2024). Energy, exergy and economic analyses of a novel hybrid ocean thermal energy conversion system for clean power production. Energy Convers. Manag. 196, 557–566. … WebThe OTEC potential in Malaysia using ocean conditions and bathymetry data has been previously studied and demonstrated. Following this, Ocean thermal energy conversion (OTEC) is a solution for environmental and climate change issues in the tropics. The OTEC potential in Malaysia using ocean conditions and bathymetry data has been previously ...

WebDec 1, 2009 · Fig. 1 shows a schematic diagram of a simple OTEC power plant operating on a closed cycle. This system uses the warm surface seawater to evaporate a working fluid such as ammonia or Freon gas, which then drives a turbine. After passing through the turbine, the vapor is condensed in a heat exchanger that is cooled by cold deep seawater.

WebNov 1, 1995 · Performance analysis is performed for optimum design point of a closed-cycle Ocean Thermal Energy Conversion (OTEC) system. Calculations are made for an OTEC … flowbicWebMay 1, 1996 · Optimization of a closed-cycle OTEC system. Journal Article Uehara, H; Ikegami, Y - Journal of Solar Energy Engineering; (USA) Optimization of an ocean thermal energy conversion (OTEC) system is carried out by the Powell method (the method of steepest descent). The parameters in the objective function consist of the velocities of … flow big lotWebApr 1, 2024 · One of the OTEC system requirements is to have a seawater temperature difference at a minimum of 20 °C within a depth of 1000 m below sea level. Recognizing … flow bike mondoviWebJan 1, 2010 · This paper evaluated the thermodynamic performance of the OTEC Power system for the production of electric power and desalinated water. The results show that newly developed fluids such as... greek factsWebA multi-objective optimization method based on a fast and elitist non-dominated sorting genetic algorithm (NSGA-II) is applied to determine the best design parameters for the … flow bikeWebNov 1, 1990 · Optimization of a Closed-Cycle OTEC System. Optimization of an Ocean Thermal Energy Conversion (OTEC) system is carried out by the Powell Method (the method of steepest descent). The parameters in the objective function consist of the velocities … greek facts historyWebMay 1, 1996 · The optimization of the I–H OTEC cycle is analyzed by the method of steepest descent. The total heat transfer area of heat exchangers per net power is used as an … flow bikes