Hi everyone welcome back to BBC solar energy coast in the lost fiction of Peavy sizing NZ previous lecture.
We already discussed ZBB sizing and we already know that they're sizing mean that we used to give the
exact rating for each component of previous system such as battery and inverter and solar charger controller
and a number of modules in better or seers and we already understood that zero.
As Syrian missiles of beefy sizing terrorist one by using Excel sheet and second one while using manual
calculation as the last one.
By using a BP source software program is the last lecture we discussed the manual of calculation.
Is this lecture we are going to use that excel sheet to give Z samba result of Z lost lecture.
To go to excel sheet first.
This is the excel sheet we are going to use each orange cell will need an input from the Z user.
Each red cell will be that output of Z of Z sizing is sure itself is going to be small calculation.
Is this excel sheet and is a.
You will head Z sizing calculation.
Let us us thought first we had a load of lumps and refrigerator of five hundred.
What ends a long three times five means equal to one hundred fifty.
What and we have three fans.
Each fan has four to five for me and four to five times three with equal to one hundred and seventy
five fans.
This is for the fans one hundred seventy five.
What
awesome machine of fifteen hundred watt washer machine
or fifteen hundred watt
TV of two one hundred one TV of 100 watt
Toaster of fifteen hundred watt
US is going to breed for for in to five the TV is going to operate for our 4 hour in the open it's 6
for our and all going to 8 6
and 8 our what is a fan on 5 for a refrigerator and 2 hoarders along 8 5 2 8 for this 1 in 5 4 6 1 and
2 4 is this one
we had a DC voltage equal to when we fought World and AC folds two hundred and twenty volt inverter
rating is 1000 what is the efficiency.
Fifty five percent say input voltage is to any for their output voltage is twenty two hundred twenty
Volt the efficiency of a charger is one hundred percent.
The safety factor for the charger is one point fifty six.
As we already said safety factor could be from one point five to one point six let's say if it could
be from one point five up to one point six
the maximum DV module board is fifty three one.
And so I mean circuit low voltage is twenty point eight Volt the short circuit current is three point
twenty seven and there is the maximum power point the voltage is seventeen point four the degradation
factor is 90 percent.
The depths of this charge of each battery is 80 percent.
It could be from 40 to 80 per cent the battery positive voltage is twenty four cent each battery has
embittered hour of forty seven of four hundred seventy eight what the number of days of historic trip
wire is seven days Z battery around training.
We already said it could be from 0 by 7 2 0 point eighty five from list take all point eighty five.
So aside to latitude of this place is thirty one degree the sun hour in this place is three point to
it.
This means that the design title or the design tells of this place will be forty six degrees.
We find that we are going to use 5 inverter in parallel and we are going to use to batteries in series
and six battery in parallel mean we are going to use twelve batteries two times 6 0 charger rating will
equal to one hundred and forty ambient
Z module calculation the number of modules needed is 50 for as the number of modules in series is two
number of branches in band will equal to to any similar less suppose we edit and you load let's say
we are going to add a small load charger of twenty what is going to operate for an hour
we will find Z took an energy load is change in
suppose we are going to use it instead of 100 1000 what inverter we are going to use five hundred watt
inverter with the same efficiency from 24 to Winnie to 2000 to any fault we can find out the number
of inverter is increased to 10 suppose we are going to use a battery of one hundred and bef power instead
of four hundred and seventy eight and bear out we will find out the number of batteries increased again.
Suppose we are going in instead of going to use for Z seven days let's say now for these
we will find out the number of batteries is decreased let's say we remove that washing machine from
that calculation we find out that total power and total load energy is degrees and Z total number of
Z modules is decrease that charge the current is decrease the number of quarters is decreased so you
can use the excel sheet to a new Ludes or remove some ludes to calculate the size of each component
of of great system I'm going to add this excel sheet in the description.
See you in the next lecture.