Intelligent management of reservoir and photoelectric ponds under water-food-energy nexus perspective

Author(s):  
Wei-De Lee ◽  
Fi-John Chang

<p>The world is in a crucial era of energy transition, and green energy will serve as a new engine that drives sustainable development in the future. Renewable energy becomes the core energy to cultivate green energy industries and promote energy self-sufficiency in Taiwan. In recent years, water, food and energy nexus (WFE Nexus) has gained global attention. Therefore, a multi-objective optimization framework is proposed in this study to explore the optimal solution to the WFE Nexus for improving the synergistic benefits of water, food, and energy (hydropower, small hydropower and solar power). The joint multi-objective operation of the Shihmen Reservoir and irrigation ponds in the northern Taiwan constitutes the case study. This study aims at achieving the optimal water supply to fulfill basic demands from different sectors as well as increasing green energy output by utilizing reservoir spilled water to lift up hydropower output, installing small hydropower in river channels, and setting up solar panels over irrigation ponds. The results support the high potential of photoelectric ponds because the installation of solar panels over irrigation ponds can 1) reduce evaporation amount and water temperature and 2) provide water quality conditions suitable for growing fish while increasing solar power output. The results also indicate that the optimal joint operation of the Shihmen Reservoir and irrigation ponds can promote reservoir hydropower output and the small hydropower output in river channels while increasing water supply and food production. This study demonstrates that the intelligent management of the reservoir and photoelectric ponds not only can increase green energy production, water supply and food production but also can enhance the synergistic benefits of the WFE Nexus, which provides long/short term policies for sustainable urban development.</p><p> </p><p>Keywords: Multi-objective reservoir operation; Optimization; Water, food and energy nexus (WFE Nexus); Green energy; Greenhouse</p>

2015 ◽  
Vol 8 (1) ◽  
pp. 125-128
Author(s):  
MNH Khan ◽  
MH Khan ◽  
MFH Khan

Renewable energy presents a better alternative to fossil fuels with greener impact on environment. The present study was conducted to evaluate the opportunities and viabilities of using direct solar power as a source of green energy in irrigation to make the rice farming profitable one. In the present study 24 Polycrystalline of each 270 watt solar panels were installed in scattered manner at ?240 with a height of 7 ft. A D.C submersible pump of 3.5 KW was set up with a 90 ft depth deep-tubewell (DTW). In Bangladesh sunshine hour varies from 10 to 13 hours and solar radiation varies from 3.5 to 6.0 KW hm-2 day-1 through out year. By direct solar power, average running time of pump was 08 hours per day and full flow of water discharge was 4.5 hours per day. Average water discharge was 40710 liter per hour and total water discharge was 310 m3 per day. By the system a scheme of 15 acres of land was irrigated where 1.3 acre per day. The financial and economic value of BCR was 1.43 and 1.5, respectively; and the financial and economic value of IRR was 68% and 98%, respectively.J. Environ. Sci. & Natural Resources, 8(1): 125-128 2015


2014 ◽  
Vol 670-671 ◽  
pp. 964-967
Author(s):  
Shu Hua Bai ◽  
Hai Dong Yang

Nowadays, energy crisis is becoming increasingly serious. Coal, petroleum, natural gas and other fossil energy tend to be exhausted due to the crazy exploration. In recent decades, several long lasting local wars broke out in large scale in Mideast and North Africa because of the fighting for the limited petroleum. The reusable green energy in our life like enormous wind power, solar power, etc is to become the essential energy. This article is to conduct a comparative exploration of mini wind turbine, with the purpose of finding a good way to effectively deal with the energy crisis.


2021 ◽  
Vol 69 (4) ◽  
pp. 345-350
Author(s):  
Divas Karimanzira ◽  
Thomas Rauschenbach

Abstract Population rise, climate change, soil degradation, water scarcity, and food security require efficient and sustainable food production. Aquaponics is a highly efficient way of farming and is becoming increasingly popular. However, large scale aquaponics still lack stability, standardization and proof of economical profitability. The EU-INAPRO project helps to overcome these limitations by introducing digitization, enhanced technology, and developing standardized modular scalable solutions and demonstrating the viability of large aquaponics. INAPRO is based on an innovation a double water recirculation system (DRAPS), one for fish, and the other one for crops. In DRAPS, optimum conditions can be set up individually for fish and crops to increase productivity of both. Moreover, the integration of digital technologies and data management in the aquaculture production and processing systems will enable full traceability and transparency in the processes, increasing consumers’ trust in aquaculture products. In this paper, the innovations and the digitization approach will be introduced and explained and the key benefits of the system will be emphasized.


2014 ◽  
Vol 529 ◽  
pp. 455-459
Author(s):  
Nan Xu ◽  
Shan Shan Li ◽  
Hao Ming Liu

Considering the probabilistic of the wind power and the solar power, a fault recovery method for distribution systems with the wind power and the solar power is presented in this paper. For the wind power, a simplified steady-state equivalent model of an asynchronous wind generator is added into the Jacobian matrix to consider the impact of the wind power on systems. For the solar power, its output is considered as an injected power which is related with solar irradiance. Three-point estimate is employed to solve the probabilistic power flow of distribution systems with the wind power and the solar power. The restoration is described as a multi-objective problem with the mean of the system loss and the number of switch operations. Fast elitist non-dominated sorting partheno-genetic algorithm is used to solve this multi-objective problem. IEEE 33-bus system is used as an example and the results show that the models and algorithms in this paper are efficient.


2021 ◽  
pp. 108045
Author(s):  
Shuijia Li ◽  
Wenyin Gong ◽  
Ling Wang ◽  
Qiong Gu

2018 ◽  
Vol 67 ◽  
pp. 04011
Author(s):  
Sunaryo Sunaryo ◽  
Adri Wirawan Ramadhani

Indonesia has more than 17,000 islands and has plenty of beautiful beaches and underwater spots which have great potential for maritime tourism. Tourism was ranked 3rd on Indonesia's foreign income and plays an important role for the country’s ecomony. Despite having potential advantages, the government has not yet maximized its efforts to develop the attractiveness of its maritime tourism. Beside the beautiful spots Indonesia is also blessed with all year long sun shine, which could be tapped as renewable and green energy as substitution to fossil fuel. Refer to these great advantages of natural resources the research was aimed to support the government’s program in developing its maritime tourism and to promote the use of green and renewable energy by designing a solar-powered tourism recreational boat which has 12 meters of length. The paper is focused on the design of solar energy and its electrical system, which includes conversion of solar energy to electrical energy and store it in the battery, the required electrical power is also predicted based on the appliances and equipment installed in the boat, the optimum attachment of solar panels on the boat structure is also calculated. All the methods and information we use are obtained from literature study, discussion with experts, and surveys to Jagur as solar-powered electric boat from Universitas Indonesia.


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