Solar Energy

a) Consider a lead acid battery with 100Ah capacity and a rated voltage of 24V.

What is the total capacity of energy in Watt-hours that can be stored in the battery?

b) Assume that the battery is completely empty. The battery is now charged at a C-rate of 0.50C. What is the charging current in Amps that is going into the battery?

c) How much time in minutes will it take for the battery to go from 50% SOC to 100% SOC, assuming a constant C-rate of 0.5C? You may assume a linear rate of charging.

d) If the battery is charged at an average constant voltage of 26V, and discharged at an average constant voltage of 23.4V, what is the voltaic efficiency of the battery in %? :

e) If the battery takes in a total charge of 100Ah, and discharges a total of 90Ah over one charge cycle, what is the coulombic efficiency of the battery in %? :

f) What is the roundtrip efficiency of storage in % for the battery? Assume the same voltaic efficiency and coulombic efficiency as you calculated above.

  1. 👍
  2. 👎
  3. 👁
  1. a: 2400
    b: 50
    c: 60
    d: 90

    1. 👍
    2. 👎
  2. e: 90

    1. 👍
    2. 👎
  3. a)2400

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Circuits

    A 3 ohm, a 5 ohm, and a 4 ohm resistor are connected in series across a battery. The voltage drop across a 3 ohm resistor is 6 V. What is the battery voltage?

  2. Physics

    A lump of lead with mass 0.50 kg is dropped from a height of 20 m onto a hard surface. It does not rebound but remains there at rest for a long period of time. What are: a) ∆Q,(b) ∆Wand (c) ∆Ufor the lead during this

  3. Easy chemistry

    Which statement correctly identifies how a lead-storage battery in a car works? A. The battery acts as a galvanic cell as it provides current to the radio. B. The battery acts as a galvanic cell as it is recharged by the

  4. Physics

    A 10-volt battery is connected to a circuit with two resistors, R1 and R2, in parallel. If R1 is greater than R2, what does Kirchhoff's loop rule indicate about the voltage drops across the resistors? The voltage drops across both

  1. Solar Energy

    Family Cartman has a small house in the country side which is not connected to the grid. The place enjoys 4 equivalent sun hours. Therefore, Mr Cartman has decided to install an off-grid PV system in the house to supply the

  2. Science

    Consider a lead-acid battery with 500 Ah capacity and a rated voltage of 12 V. a)What is the total capacity of energy in watt-hours that can be stored in the battery? b)Assume that the battery is completely empty. The battery is

  3. Engineering

    Two similar 250/1000 Volts, 10 KVA Transformers are being tested by the sumpner's test method. At rated voltage of 250volts on the Low voltage side the wattmeter reading is found 250watts and ammeter reading is 4Ampers. On the

  4. physics

    Suppose a battery output a voltage of 9 volt. Calculate how many joules of energy are imparted to every individual electron moving through this battery?

  1. circuits

    In a series circuit, the total voltage provided by the battery _________. a. is equal to the voltage across each component b. is greater if the resistance is increased c. is equal to the sum of the voltage drops across each

  2. physics

    Three capacitors are connected to a battery of unknown voltage as shown in the circuit diagram above. The voltage drop across capacitor C 1 is V 1 = 11 . volts. a) What is the effective capacitance of the three capacitors? c) What

  3. physics

    Alkaline batteries have the advantage of putting out constant voltage until very nearly the end of their life. How long will an alkaline battery rated at 1 A ⋅ h and 1.58 V keep a 1 W flashlight bulb burning?

  4. Physics

    A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.2 V when it is delivering 26.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?

You can view more similar questions or ask a new question.