Hydraulic conditions of operation of end portion of revetment at downstream side of combined hydroelectric plant

Power Technology and Engineering -     

淜头水电站优化蓄水调度对下游影响分析

分析了水电站初期蓄水和正常运行时对下游的影响。水电站在非灌溉期蓄水,下泄水量最大减少0.33%,对下游影响很小;灌溉期和7,8月份水电站不蓄水,对下游不产生影响;优化蓄水调度方式对水电站发电量影响微弱。     

Transformation of the Ob river channel downstream of the Novosibirsk hydroelectric station

Conclusions Investigations of processes of transformation of the Ob channel in the lower pool of the Novosibirsk hydrostation convincingly show the need for timely consideration of the consequences caused by man's interference in the life of the river. The preparation of a scientifically founded forecast of channel transforamtion when designing hydrostations should include an assessment of the effect on the fluviomorphological process of quarry excavations, training works, and construction of intake and outlet works. Insufficient consideration of these factors and the lack of due supervision of works affecting the course of the fluviomorphological process under conditions of a river with a regulated flow can be the cause of irreversible channel transformations and changes in the hydraulic regime which can effect substantial complications for various branches of the economy.Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 9, pp. 46–50, September, 1984.     

Ice conditions in pools of the dam of the Kolyma hydroelectric station during initial operation

Conclusions The experience of operating the Kolyma hydrostation at a low head yielded considerable data for predicting the ice conditions in lower pools of hydrostations operating under harsh climatic conditions with daily and weekly regulation. This experience was used for refining the conditions during normal operation of the Kolyma hydrostation and for a feasibility study of the Ust'-Srednekan hydrostation.Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 2, pp. 34–36, February, 1990.     

Forty years of commercial operation of the Volga-Lenin hydroelectric station

Conclusions  

Experience in the operation of the structures of the Kama hydroelectric station

Power Technology and Engineering -     

Channel scour downstream of the Kolyma hydroelectric station and its effect on the station’s power indices

Conclusions The recommendations of par. 3.29 and 3.36 of the building codes SNiP 2.06-85 concerning the development of variants of dissipating the energy of the flow and comparing their technical economic indices were not realized. The construction of an artificial pit (scour pocket) or demolishing the bar for eliminating the downstream backwater were not provided for in the design. A reduction of the capacity of the hydrostation and production of electricity was not taken into account in the design, although the results of laboratory studies established a substantial backwater caused by the downstream bar. It seems to us that SNiP should be supplemented with specific requirements concerning the need to carry out variant designing in the case of dissipating the energy of the flow by deflecting the nappe with a determination of all technical and economic indices of the variants and their consequences during operation of the structure. The experience of operating hydrostations indicates that energy dissipation is a quite complex problem and insufficiently substantiated designs lead to a decrease of the reliability of the structures and require large capital expenditures for restoring their performance during operation. Translated from Gidrotekhnicheskoe Stroitel’stvo, No. 7, pp. 11–13, July, 1999.     

Initial period of operation of the channel dam of the kureika hydroelectric station

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 10, pp. 18–22, October, 1989.