KISSAN SOLAR EDUCATION
CALCULATE RATING of Solar's Equipment : Are Your Looking for SOLAR DESIGN for your Home, Offices by Itself ?
Energy Flow Diagram in a Solar System for Home, Offices
To know Rating of Each equipment , you should calculate from Reverse Direction of Energy Flow Diagram.
Step 1 : Calculate Load Requirement : Number of load you want to run from Solar.
Important Calculation
1. Total wattage of Load : (watt * quantity ) = 9*2 + 60*1 +150*1 . . . . . +250*1 =628 Watt
2. Total Energy Consumed By load : (wattage * number . of hour used) = 9*5*2 + 60*8*1 + .......+ 250*3*1 = 2820 Wh
Step 2 : Find out Size of Inverter ,
Important :
Output Energy of Load = 2820 wh
We need to find out Rating of inverter and Input of Inverter or output of Battery :
Every inverter has Efficiency mentioned by manufacturer : 90% to 95 %. Let take 93 %
Rating of Inverter = Total wattage at output need = 628 VA = 650 W inverter
Step 3 : Size of Battery :
To find Size of Battery, we need two Important Parameter of Battery
1. DoD ( Depth of Discharge)
2. Efficiency of Battery
Depth of Discharge : This indicates how much charge you can take from battery for reliable operation and life of battery. Ex if DoD is 70%, you can discharge 70 % of battery, after 70%, it is recommendation to re charge quickly the battery .
Lead Acid battery has 50% DoD
Excide Battery has 80% DoD
You can also consider Autonomy i.e no. of days do you want to keep charge storage in battery.
For 2 days, total charge required, total rating of battery need = 3 * 381 = 1143 Ah
Step 4 : Size of Charge controller and MPPT :
Here, Input energy of Battery is considered 4566 Wh, but according to problems it must 3653Wh.
Step 5 : To find out Rating of Panel , No. of Panel :
In Every area there is given peak hour of sunshine i.e. number of hours sunshine become maximum,
You can find this from google
if you are in Saket, Delhi =
Annual Average : 4.33 kWh/m2/day
If you are in Ranchi jharkhand =
Annual Average : 5.15 kWh/m2/day
Here Size of Charge controller will 12 V, 82A
Assignment Question :
Good knowlegde
ReplyDelete