What does dead storage mean?
noun. the storage of furniture, files, or other unused or seldom used items in a warehouse or other location for an indefinite period of time.
Why do we provide dead storage in dam?
Dead storage: The volume of water held below the minimum pool level is called the dead storage. It is provided to cater for the sediment deposition by the impounding sediment laid in water.
What is FRL in dam?
FRL: Full Reservoir Level. MWL: Maximum Water Level. Live Capacity: It shows the current level of the dam, it means the water capacity of any reservoir/dam.
What are the levels of reservoir?
Reservoir storage is divided into four zones, or pools. These include, from top to bottom, the flood-control zone, conservation zone, buffer zone and inactive zone.
What is live and dead storage?
Dead storage means that portion of the storage which is not used for operational purposes and “Dead Storage Level” means the level corresponding to Dead Storage. ” Live Storage” means all storage above Dead Storage. ‘
Which memory is also called as dead storage?
The storage above sill level is called live storage and below the level is called dead storage. Even long-forgotten or rarely viewed data that reside in dead storage file cases, bottom drawers of someone’s desk, or the back memory of an employee’s mind can have greater value when accessible and utilized.
Why dead storage is provided?
Dead storage is provided in a reservoir chiefly to serve two purposes: a) The river, during its course to the reservoir, picks up sizeable amount of sediment and carries it along either as suspended load or bed load.
What is minimum draw down level?
Minimum Drawdown Level (MDDL): It is the level below which the reservoir will not be drawn down so as to maintain a minimum head required in power projects. This level is also called sometimes as the Highest Reservoir Level or the Highest Flood Level.
What is live storage of a dam?
This level is also called sometimes as the Highest Reservoir Level or the Highest Flood Level. Live storage: This is the storage available for the intended purpose between Full Supply Level and the Invert Level of the lowest discharge outlet.
What is reservoir storage capacity?
Reservoir Capacity means the gross volume of water which can be stored in the reservoir. “Dead Storage Capacity” means that portion of the Reservoir Capacity which is not used for operational purposes, and “Dead Storage” means the corresponding volume of water.
What is sill level dam?
Dams have a Sill Level which refers to the bottom of canal sluice(s) and represents the level up to which a dam can be emptied by flow through gravity. The storage above sill level is called live storage and that below it is called dead storage.
What is the percentage of dead storage in gross storage?
The dead storage generally varies between 15 to 25% of the total capacity.
What does dead storage in a dam mean?
The capacity, volume or storage of a reservoir is usually divided into distinguishable areas. Dead or inactive storage refers to water in a reservoir that cannot be drained by gravity through a dam’s outlet works, spillway or power plant intake and can only be pumped out.
Which is the correct definition of dead storage?
This may also be termed as the volume of water actually available at any time between the Dead Storage Level and the lower of the actual water level and Full Reservoir Level. Dead storage: It is the total storage below the invert level of the lowest discharge outlet from the reservoir.
What does dead storage level ( DSL ) stand for?
Dead Storage Level (DSL): Below the level, there are no outlets to drain the water in the reservoir by gravity. Maximum Water Level (MWL)This id the water level that is ever likely to be attained : during the passage of the design flood. It depends upon the specified initial reservoir level and the spillway gate operation rule.
Where is the buffer between active and dead storage?
Buffer Storage:This is the space located just above the Dead Storage Level up to Minimum Drawdown Level. As the name implies, this zone is a buffer between the active and dead storage zones and releases from this zone are made in dry situations to cater for essential requirements only.