How do you calculate water power?

How do you calculate water power?

If you don’t mind equations the easiest way to explain how much power you could generate is to look at the equation for calculating hydropower:

1. P = m x g x Hnet x η
2. Hnet = Hgross x 0.9 = 2.5 x 0.9 = 2.25 m.
3. 3 m3/s = 3,000 litres per second.
4. Power (W) = m x g x Hnet x η = 3,000 x 9.81 x 2.25 x 0.751 = 49,729 W = 49.7 kW.

How do you calculate battery storage per kWh?

Formula for Ah to Kwh conversion is simple, multiply the Ah and the Voltage of the battery which will give you the answer in watts, divide by 1000 further to get the answer in Kilo-watt hour.

In which curve water power can be calculated?

Kelkit flow duration curve (FDC) [101]. This curve provides information about the future regime of the river and is used to estimate the electricity generation potential of a power scheme at a given location.

How long does a 12V 7Ah battery last?

Look for the energy rating listed in units of Ah, that is Ampere-hours. For example, a 12V 7Ah battery will last for 7Ah/10A = 0.7 h = 42 minutes while supplying 10A.

How many kWh does a 12v battery produce?

How many Watt-Hours in a battery?: Watts are pretty simple – it is just battery voltage times amp-hours. A 12 volt 105 AH battery can supply (under perfect conditions and to 100% discharge) 12 x 105, or 1260 Watt-hours (1.26 kWh).

How long will kWh battery last?

With the average home drawing 750 to 1,000 W of power per hour during a blackout, the 10 kWh battery will last 10 to 12 hours and the 13.5 kWh battery will last 13.5 to 16.8 hours.

How much water does a power plant use per day?

On a daily basis, the freshwater portion alone is on the order of 100 billion gallons withdrawn and several billion gallons consumed. A single large power plant using once-through cooling can easily draw in a billion gallons in a day.

How to calculate current, power and energy of a battery?

How to calculate output current, power and energy of a battery according to C-rate? The simplest formula is : I = Cr * Er or Cr = I / Er Where Er = rated energy stored in Ah (rated capacity of the battery given by the manufacturer) I = current of charge or discharge in Amperes (A) Cr = C-rate of the battery

When to use a 12 volt battery calculator?

This calculator is designed to help you find a deep cycle battery when a continuous load is applied, not for cranking or starting purposes. If you know how much power your application takes to run, and the time you would like to run it, we’ll recommend a 12 volt battery with a safe amount of AH (Amp Hours) that will give you the runtime you need.

Why do you need a battery capacity calculator?

It is a handy tool that helps you understand how much energy is stored in the battery that your smartphone or a drone runs on. Additionally, it provides you with a step-by-step instruction on how to calculate amp hours and watt-hours, so you will be able to perform all of these calculations by yourself, too!

How to calculate battery charge and discharge time?

Er = rated energy stored in Ah (rated capacity of the battery given by the manufacturer) I = current of charge or discharge in Amperes (A) Cr = C-rate of the battery. Equation to get the time of charge or charge or discharge “t” according to current and rated capacity is : t = Er / I.