Well Efficiency Solution

STEP 0: Pre-Calculation Summary
Formula Used
Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)*100
E = (s/st)*100
This formula uses 3 Variables
Variables Used
Well Efficiency - Well Efficiency can be defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well .
Change in Drawdown - (Measured in Meter) - Change in Drawdown in the Aquifer is a term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow.
Drawdown Inside the Well - (Measured in Meter) - Drawdown Inside the Well at the radius of the pumping well is a change in groundwater level due to an applied stress.
STEP 1: Convert Input(s) to Base Unit
Change in Drawdown: 0.1 Meter --> 0.1 Meter No Conversion Required
Drawdown Inside the Well: 9 Meter --> 9 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
E = (s/st)*100 --> (0.1/9)*100
Evaluating ... ...
E = 1.11111111111111
STEP 3: Convert Result to Output's Unit
1.11111111111111 --> No Conversion Required
FINAL ANSWER
1.11111111111111 1.111111 <-- Well Efficiency
(Calculation completed in 00.004 seconds)

Credits

Created by Mithila Muthamma PA
Coorg Institute of Technology (CIT), Coorg
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6 Well Efficiency Calculators

Well Efficiency
Go Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)*100
Drawdown Inside well given well efficiency
Go Drawdown Inside the Well = Change in Drawdown/Well Efficiency
Drawdown in aquifer given well efficiency
Go Change in Drawdown = Well Efficiency*Drawdown Inside the Well
Pumping Rate given Specific Capacity
Go Pumping Rate = Specific Capacity*Drawdown Inside the Well
Drawdown given Specific Capacity
Go Drawdown Inside the Well = Pumping Rate/Specific Capacity
Specific Capacity
Go Specific Capacity = Pumping Rate/Drawdown Inside the Well

Well Efficiency Formula

Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)*100
E = (s/st)*100

What is an Aquifer?

Aquifer is rock layer that contains water and releases it in appreciable amounts. The rock contains water-filled pore spaces, and, when the spaces are connected, the water is able to flow through the matrix of the rock. An aquifer also may be called a water-bearing stratum, lens, or zone

How to Calculate Well Efficiency?

Well Efficiency calculator uses Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)*100 to calculate the Well Efficiency, The Well Efficiency can be defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well . Well Efficiency is denoted by E symbol.

How to calculate Well Efficiency using this online calculator? To use this online calculator for Well Efficiency, enter Change in Drawdown (s) & Drawdown Inside the Well (st) and hit the calculate button. Here is how the Well Efficiency calculation can be explained with given input values -> 1.111111 = (0.1/9)*100.

FAQ

What is Well Efficiency?
The Well Efficiency can be defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well and is represented as E = (s/st)*100 or Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)*100. Change in Drawdown in the Aquifer is a term applied to the maximum lowering of the groundwater table caused by pumping or artesian flow & Drawdown Inside the Well at the radius of the pumping well is a change in groundwater level due to an applied stress.
How to calculate Well Efficiency?
The Well Efficiency can be defined as the ratio of the drawdown in the aquifer at the radius of the pumping well to the drawdown inside the well is calculated using Well Efficiency = (Change in Drawdown/Drawdown Inside the Well)*100. To calculate Well Efficiency, you need Change in Drawdown (s) & Drawdown Inside the Well (st). With our tool, you need to enter the respective value for Change in Drawdown & Drawdown Inside the Well and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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