Dams for water supply usually represent an untapped hydroelectric potential. It is a small energetic potential, in most situations, usually requiring a particular solution to be viable. The use of pumps as power turbi...Dams for water supply usually represent an untapped hydroelectric potential. It is a small energetic potential, in most situations, usually requiring a particular solution to be viable. The use of pumps as power turbines often represents an alternative that enables the power generation in hydraulic structures already in operation, as is the case of dams in water supply systems. This potential can be exploited in conjunction with the implementation of PV modules on the water surface, installed on floating structures, both operating in a hydro PV hybrid system. The floating structure can also contribute to reducing the evaporation of water and providing a small increase in hydroelectric power available. This paper presents a pre-feasibility study for implementation of a hydroelectric power plant and PV modules on floating structures in the reservoir formed by the dam of Val de Serra, in southern Brazil. The dam is operated to provide drinking water to about 60% of the population of the city of Santa Maria, in the state of Rio Grande do Sul, in southern Brazil. The pre-feasibility study conducted with Homer software, version Legacy, indicated that the hydroelectric plant with a capacity of 227 kW can operate together with 60 kW of PV modules. This combination will result (in one of the configurations considered) in an initial cost of USD$ 1715.83 per kW installed and a cost of energy of USD$ 0.059/kWh.展开更多
Chinese seventh Arctic scientific expedition began from Shanghai on July 11,2016,journeying through the Bering Sea—Chukchi Sea—Canada Basin area—submarine plateau of the Chukchi Sea—high latitudes Arctic Ocean—Me...Chinese seventh Arctic scientific expedition began from Shanghai on July 11,2016,journeying through the Bering Sea—Chukchi Sea—Canada Basin area—submarine plateau of the Chukchi Sea—high latitudes Arctic Ocean—Mendeleyev Ridge and covered more than 13 000 n mile in 78 days.The distance travelled in floating ice area is more than 2 800 n mile and the northernmost point of the展开更多
基金The authors wish to thank the institutions involved for their support to research activities related to renewable energy,which resulted,among other things,in this articleSpecifically,the third author would like to thank the partial financial support provided by CNPq through a support grant for research productivity.
文摘Dams for water supply usually represent an untapped hydroelectric potential. It is a small energetic potential, in most situations, usually requiring a particular solution to be viable. The use of pumps as power turbines often represents an alternative that enables the power generation in hydraulic structures already in operation, as is the case of dams in water supply systems. This potential can be exploited in conjunction with the implementation of PV modules on the water surface, installed on floating structures, both operating in a hydro PV hybrid system. The floating structure can also contribute to reducing the evaporation of water and providing a small increase in hydroelectric power available. This paper presents a pre-feasibility study for implementation of a hydroelectric power plant and PV modules on floating structures in the reservoir formed by the dam of Val de Serra, in southern Brazil. The dam is operated to provide drinking water to about 60% of the population of the city of Santa Maria, in the state of Rio Grande do Sul, in southern Brazil. The pre-feasibility study conducted with Homer software, version Legacy, indicated that the hydroelectric plant with a capacity of 227 kW can operate together with 60 kW of PV modules. This combination will result (in one of the configurations considered) in an initial cost of USD$ 1715.83 per kW installed and a cost of energy of USD$ 0.059/kWh.
基金The Chinese Polar Environment Comprehensive Investigation and Assessment Programmes,State Oceanic Administration under contact Nos CHINARE2016–03–01,CHINARE2016–03-02,CHINARE2016–03-03,CHINARE2016–03-04,and CHINARE2016–03-05
文摘Chinese seventh Arctic scientific expedition began from Shanghai on July 11,2016,journeying through the Bering Sea—Chukchi Sea—Canada Basin area—submarine plateau of the Chukchi Sea—high latitudes Arctic Ocean—Mendeleyev Ridge and covered more than 13 000 n mile in 78 days.The distance travelled in floating ice area is more than 2 800 n mile and the northernmost point of the
