1 00:00:01,340 --> 00:00:13,120 Hi everyone welcome back to BBC solar energy coast in the lost fiction of Peavy sizing NZ previous lecture. 2 00:00:13,280 --> 00:00:24,020 We already discussed ZBB sizing and we already know that they're sizing mean that we used to give the 3 00:00:24,020 --> 00:00:31,310 exact rating for each component of previous system such as battery and inverter and solar charger controller 4 00:00:31,330 --> 00:00:37,620 and a number of modules in better or seers and we already understood that zero. 5 00:00:37,730 --> 00:00:47,450 As Syrian missiles of beefy sizing terrorist one by using Excel sheet and second one while using manual 6 00:00:47,450 --> 00:00:49,600 calculation as the last one. 7 00:00:49,600 --> 00:00:59,000 By using a BP source software program is the last lecture we discussed the manual of calculation. 8 00:00:59,010 --> 00:01:08,720 Is this lecture we are going to use that excel sheet to give Z samba result of Z lost lecture. 9 00:01:09,050 --> 00:01:13,410 To go to excel sheet first. 10 00:01:13,420 --> 00:01:25,740 This is the excel sheet we are going to use each orange cell will need an input from the Z user. 11 00:01:25,960 --> 00:01:39,560 Each red cell will be that output of Z of Z sizing is sure itself is going to be small calculation. 12 00:01:39,740 --> 00:01:43,580 Is this excel sheet and is a. 13 00:01:43,820 --> 00:01:47,640 You will head Z sizing calculation. 14 00:01:47,660 --> 00:01:57,900 Let us us thought first we had a load of lumps and refrigerator of five hundred. 15 00:01:57,910 --> 00:02:06,530 What ends a long three times five means equal to one hundred fifty. 16 00:02:06,540 --> 00:02:13,140 What and we have three fans. 17 00:02:13,140 --> 00:02:21,330 Each fan has four to five for me and four to five times three with equal to one hundred and seventy 18 00:02:21,330 --> 00:02:24,660 five fans. 19 00:02:24,670 --> 00:02:30,040 This is for the fans one hundred seventy five. 20 00:02:30,040 --> 00:02:30,550 What 21 00:02:36,830 --> 00:02:42,620 awesome machine of fifteen hundred watt washer machine 22 00:02:48,540 --> 00:02:50,530 or fifteen hundred watt 23 00:02:56,480 --> 00:03:02,950 TV of two one hundred one TV of 100 watt 24 00:03:10,540 --> 00:03:13,240 Toaster of fifteen hundred watt 25 00:03:19,210 --> 00:03:33,620 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 26 00:03:34,070 --> 00:03:37,730 for our and all going to 8 6 27 00:03:41,860 --> 00:03:54,910 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 28 00:03:54,910 --> 00:03:56,020 2 4 is this one 29 00:04:01,620 --> 00:04:13,100 we had a DC voltage equal to when we fought World and AC folds two hundred and twenty volt inverter 30 00:04:14,160 --> 00:04:19,730 rating is 1000 what is the efficiency. 31 00:04:19,830 --> 00:04:30,150 Fifty five percent say input voltage is to any for their output voltage is twenty two hundred twenty 32 00:04:30,870 --> 00:04:36,670 Volt the efficiency of a charger is one hundred percent. 33 00:04:36,900 --> 00:04:42,650 The safety factor for the charger is one point fifty six. 34 00:04:42,650 --> 00:04:53,590 As we already said safety factor could be from one point five to one point six let's say if it could 35 00:04:53,590 --> 00:04:58,090 be from one point five up to one point six 36 00:05:02,450 --> 00:05:08,290 the maximum DV module board is fifty three one. 37 00:05:08,640 --> 00:05:16,800 And so I mean circuit low voltage is twenty point eight Volt the short circuit current is three point 38 00:05:17,130 --> 00:05:24,970 twenty seven and there is the maximum power point the voltage is seventeen point four the degradation 39 00:05:25,010 --> 00:05:27,310 factor is 90 percent. 40 00:05:27,740 --> 00:05:33,130 The depths of this charge of each battery is 80 percent. 41 00:05:33,140 --> 00:05:42,140 It could be from 40 to 80 per cent the battery positive voltage is twenty four cent each battery has 42 00:05:42,160 --> 00:05:51,620 embittered hour of forty seven of four hundred seventy eight what the number of days of historic trip 43 00:05:51,620 --> 00:05:56,450 wire is seven days Z battery around training. 44 00:05:56,510 --> 00:06:05,000 We already said it could be from 0 by 7 2 0 point eighty five from list take all point eighty five. 45 00:06:05,360 --> 00:06:16,010 So aside to latitude of this place is thirty one degree the sun hour in this place is three point to 46 00:06:16,010 --> 00:06:17,360 it. 47 00:06:17,420 --> 00:06:28,520 This means that the design title or the design tells of this place will be forty six degrees. 48 00:06:28,520 --> 00:06:40,340 We find that we are going to use 5 inverter in parallel and we are going to use to batteries in series 49 00:06:40,700 --> 00:06:53,020 and six battery in parallel mean we are going to use twelve batteries two times 6 0 charger rating will 50 00:06:53,020 --> 00:06:57,270 equal to one hundred and forty ambient 51 00:07:00,920 --> 00:07:14,780 Z module calculation the number of modules needed is 50 for as the number of modules in series is two 52 00:07:15,590 --> 00:07:28,310 number of branches in band will equal to to any similar less suppose we edit and you load let's say 53 00:07:28,340 --> 00:07:40,500 we are going to add a small load charger of twenty what is going to operate for an hour 54 00:07:46,180 --> 00:07:51,960 we will find Z took an energy load is change in 55 00:07:55,070 --> 00:08:09,890 suppose we are going to use it instead of 100 1000 what inverter we are going to use five hundred watt 56 00:08:09,950 --> 00:08:25,570 inverter with the same efficiency from 24 to Winnie to 2000 to any fault we can find out the number 57 00:08:25,570 --> 00:08:41,320 of inverter is increased to 10 suppose we are going to use a battery of one hundred and bef power instead 58 00:08:41,500 --> 00:08:50,720 of four hundred and seventy eight and bear out we will find out the number of batteries increased again. 59 00:08:50,770 --> 00:08:59,720 Suppose we are going in instead of going to use for Z seven days let's say now for these 60 00:09:04,440 --> 00:09:15,510 we will find out the number of batteries is decreased let's say we remove that washing machine from 61 00:09:15,510 --> 00:09:24,550 that calculation we find out that total power and total load energy is degrees and Z total number of 62 00:09:24,570 --> 00:09:32,610 Z modules is decrease that charge the current is decrease the number of quarters is decreased so you 63 00:09:32,610 --> 00:09:42,600 can use the excel sheet to a new Ludes or remove some ludes to calculate the size of each component 64 00:09:42,630 --> 00:09:49,980 of of great system I'm going to add this excel sheet in the description. 65 00:09:49,980 --> 00:09:51,180 See you in the next lecture.