1 00:00:02,030 --> 00:00:03,730 Hi everyone welcome back to be. 2 00:00:03,730 --> 00:00:13,510 The solar energy course is a lost section in this section we are going to get that b v saving the definition 3 00:00:13,510 --> 00:00:15,200 of the BP sizing. 4 00:00:15,290 --> 00:00:25,620 It is a way use to get the exact rating of each component of Beavis system corresponding to a given 5 00:00:25,620 --> 00:00:32,720 loop such as battery inverter charger controller and number of banners. 6 00:00:32,820 --> 00:00:41,220 In this section we are going to introduce you to three methods of B2B sizing beefy sizing can be by 7 00:00:41,220 --> 00:00:52,490 using Excel sheet as we are going to describe in the next lecture or by using a manual calculation as 8 00:00:52,490 --> 00:00:55,910 we are going to do in this lecture. 9 00:00:57,470 --> 00:01:09,520 All by using that B source software program which we are going to introduce is a lost lecture in this 10 00:01:09,520 --> 00:01:18,060 course in this lecture we are going to introduce you to the many one calculation of VB size. 11 00:01:18,350 --> 00:01:20,030 So let's start 12 00:01:24,260 --> 00:01:28,020 to understand the strategy of beefy sizing. 13 00:01:28,440 --> 00:01:37,530 You need to understand this figure the beefy array gives the energy to charge the controller which is 14 00:01:37,530 --> 00:01:48,780 used to charge the battery which supplies the battery inverter by some power this inverter is going 15 00:01:48,780 --> 00:02:00,920 to supply the main service panel which is going to supply is ACLU this mean they see Lord is going to 16 00:02:00,930 --> 00:02:03,620 define you think of inverters. 17 00:02:04,420 --> 00:02:12,730 And if they input power tools inverter is going to the implying that size of the battery and charger 18 00:02:12,740 --> 00:02:19,290 controller is going to be defined by the battery and the Peavey array. 19 00:02:19,700 --> 00:02:23,540 The beefy array is going to be defined by charger. 20 00:02:23,540 --> 00:02:26,260 Controller efficiency and power 21 00:02:29,560 --> 00:02:40,880 so we are going to say is this all a great system from right to left not from left to right. 22 00:02:40,900 --> 00:02:53,500 So let's start Suppose we had and it would consist of five lumps of thirty Watt operate four to our 23 00:02:53,560 --> 00:03:04,270 three days and we have refrigerator of five hundred what operate four five hours per day. 24 00:03:04,520 --> 00:03:12,330 And three different things of four to five for what operate for it. 25 00:03:12,410 --> 00:03:18,300 Per days and wash your machine of fifteen hundred. 26 00:03:18,300 --> 00:03:28,300 What operates four point eight six hour per day and TV of 200. 27 00:03:28,310 --> 00:03:41,100 What operate four four hour per day and toaster operates for fifteen hundred watt for all point to five 28 00:03:41,220 --> 00:03:52,950 our birthdays first we are going to guess that total both of these to lose to the power of loose will 29 00:03:52,950 --> 00:04:03,690 equal to five times to Team What for is the lump and the five hundred what for refrigerator and forty 30 00:04:03,710 --> 00:04:13,160 five what times three four is that fan and fifteen hundred ward for washing machine and two hundred 31 00:04:13,160 --> 00:04:19,020 watt for Z TV and fifteen hundred watt for the toaster. 32 00:04:19,310 --> 00:04:28,550 This will equal to thirty nine hundred and eighty five watt so that total load both were equal to three 33 00:04:28,550 --> 00:04:37,190 hundred and ninety eight five Walt but the what is the total energy of Z2 by multiplying each power 34 00:04:37,250 --> 00:04:39,810 by each time is it operating. 35 00:04:39,820 --> 00:04:49,850 For we will get that total energy Lou so five times thirty times two hour plus five hundred times five 36 00:04:49,910 --> 00:05:01,330 hour forty five times three times eight hour fifteen hundred times or point eight six hour two hundred 37 00:05:01,540 --> 00:05:12,460 times four hour fifteen hundred times all point to five hour will equal to six thousand and thirty four 38 00:05:13,080 --> 00:05:14,710 five what. 39 00:05:14,830 --> 00:05:22,090 So that total new energy will equal to six thousand three hundred and forty five watts then thirty two 40 00:05:22,150 --> 00:05:30,530 adjusted factor inverters will equal to all point eight five as the input voltage for Zain Verjee there 41 00:05:31,030 --> 00:05:39,790 will be 24 DC voltage from the battery and output voltage would equal to two hundred and twenty volt 42 00:05:39,940 --> 00:05:44,610 AC each inverter is rated with 1000 what 43 00:05:47,240 --> 00:05:57,460 so they inverter input power would equal to their new AC power over the adjusted effective mean the 44 00:05:57,460 --> 00:06:06,380 input inverse of power with equal to three thousand nine hundred and eighty five fourth over O point 45 00:06:06,490 --> 00:06:07,480 eight five. 46 00:06:08,120 --> 00:06:18,430 Well it was two four cells in six hundred and eighty eight walls the DC energy or is the input in the 47 00:06:18,430 --> 00:06:27,280 energy of the inverter What do you what do is it easy lose energy birthdate over the adjusted factor 48 00:06:27,460 --> 00:06:37,180 mean six thousand three hundred forty five for our beer all body in a five when equal to seven thousand 49 00:06:37,180 --> 00:06:45,280 four hundred sixty three What the oh so then a versus system in football it should be four thousand 50 00:06:45,280 --> 00:06:56,390 sixty eighty eight what how many inverter we are going to use in this system by dividing this power 51 00:06:56,690 --> 00:07:05,140 over 1000 what sold is the number of inverter one equal to four thousand six hundred eighty eight What. 52 00:07:05,150 --> 00:07:10,220 Over 1000 What will you give us five inverters 53 00:07:13,570 --> 00:07:20,050 now we are going to give us the size of the battery let's stay there so this is charge of the battery 54 00:07:20,170 --> 00:07:28,920 eighty per cent the battery plus voltage will equal to 24 volt each battery gives twelve full. 55 00:07:28,990 --> 00:07:37,360 We need the battery two supplies the loot for seven days miss out on each battery has four hundred and 56 00:07:37,360 --> 00:07:39,880 seventy eight and there our 57 00:07:43,150 --> 00:07:49,770 first they taught an MBA out there today with equal to easy energy. 58 00:07:49,820 --> 00:07:58,330 Thursday means the input inverter energy seven thousand four hundred sixty three well thought over Z 59 00:07:58,660 --> 00:08:03,900 battery boss voltage which a 2 to any 4 Volt will give us. 60 00:08:03,970 --> 00:08:08,910 Three hundred and eleven and bear out each day. 61 00:08:08,920 --> 00:08:12,840 We will need from battery three hundred and eleven. 62 00:08:13,030 --> 00:08:14,430 And there are seven. 63 00:08:14,510 --> 00:08:20,180 Where the battery capacity will equal to total and we bear our wish. 64 00:08:20,380 --> 00:08:28,000 Three hundred and eleven and beat out times the number of days which is seven overs edifice of this 65 00:08:28,060 --> 00:08:37,930 charge of each battery which all point it will be equal to two thousand seven hundred twenty one and 66 00:08:37,940 --> 00:08:50,970 build our so we can get Z no battery in burial by dividing this number of better and better out of each 67 00:08:50,970 --> 00:09:01,740 battery will give us two thousand seven hundred and twenty one and better out over four hundred seventy 68 00:09:01,830 --> 00:09:06,240 eight and build our will give us six batteries. 69 00:09:06,570 --> 00:09:17,270 So we are going to use six batteries in better to get the number of the battery in serious by dividing 70 00:09:17,290 --> 00:09:26,520 that battery possible voltage over the selected battery voltage which is twelve volt so twenty four 71 00:09:26,940 --> 00:09:28,050 over twelve. 72 00:09:28,140 --> 00:09:43,840 We will get two batteries in serious so we will use twelve batteries two in series and six in Barrow. 73 00:09:43,830 --> 00:09:48,570 Now let's see size that b v every 74 00:09:51,610 --> 00:10:01,180 device round trimming efficiency would equal to all point it five means when we are going to s lies 75 00:10:01,200 --> 00:10:10,500 the loot we will need more power rooms that the V at a rate to charge Z Bethany let's say this efficiency 76 00:10:10,500 --> 00:10:22,550 will equal to or point it five so as required every output per day will equal to that total the DC energy 77 00:10:22,550 --> 00:10:31,130 bill day better battery of ground trip efficiency will give us eight thousand seven hundred and eighty 78 00:10:31,130 --> 00:10:42,420 Watt our means we will need from the DV array eight thousand and seven hundred and eighty what oh less 79 00:10:42,460 --> 00:10:52,960 we are going to use their Siemens banner Model M fifty five which has maximum power equal to fifty three 80 00:10:53,020 --> 00:11:04,450 Watt and maximum power point current three point or five ambient and maximum power point voltage seventeen 81 00:11:04,450 --> 00:11:12,520 point four Volt and the choice circuit can't equal to three point two seven ambient as the open circuit 82 00:11:12,520 --> 00:11:13,210 voltage. 83 00:11:13,210 --> 00:11:20,420 This is the role of trunk will equal to twenty one point eight for this is that a mention of the panel 84 00:11:21,010 --> 00:11:30,870 as in their physical war then seated or nominal breathing something greater with equal to 47 degrees 85 00:11:30,900 --> 00:11:40,230 Celsius Z a radiance is one thousand watt bed meter squared them in compression with equal to twenty 86 00:11:40,230 --> 00:11:43,210 five degrees Les's. 87 00:11:43,390 --> 00:11:50,590 This is the Ivy curve of Zach Benton at different temperature and that rabbit this is thought because 88 00:11:50,590 --> 00:12:00,970 that Peavy Bannon will not operate at this thunder temperature condition or if DC so there will be some 89 00:12:00,970 --> 00:12:10,760 losses their losses and then fold dish with equal to all point eighty five as close losses at BOA would 90 00:12:11,040 --> 00:12:21,350 be equal to all but mine is a go to that graph or the temperature increases the voltage with go is going 91 00:12:21,350 --> 00:12:33,590 to decrease and the power is going also to decrease but their current is going to increase so the maximum 92 00:12:33,590 --> 00:12:43,310 bar in voltage will equal to seventeen point four times all point eight five will equal to fourteen 93 00:12:43,310 --> 00:12:48,670 point seventy nine volt but Z. 94 00:12:48,690 --> 00:12:57,990 Maximum power point power would equal to maximum power point part of Z panel finds open opening night 95 00:12:58,950 --> 00:13:10,780 means fifty three times all point nine will equal to forty seven point seven what the energy of each 96 00:13:10,830 --> 00:13:16,570 module will equal to that of the bow of each module. 97 00:13:16,630 --> 00:13:26,990 Time says on our mean forty seven by seven times three point eight will equal to one hundred and eighty 98 00:13:26,990 --> 00:13:33,950 one point three what will needed from each be the 99 00:13:37,760 --> 00:13:48,600 the degradation factor of each module according to operating temperature for all climate will equal 100 00:13:48,600 --> 00:14:01,320 to 90 percent men each module energy output and operating temperature will equal to one hundred sixty 101 00:14:01,320 --> 00:14:02,060 three. 102 00:14:02,070 --> 00:14:04,340 What our. 103 00:14:04,550 --> 00:14:16,730 Now we can get the number of modules by dividing the total amount of power is from this entry over Z. 104 00:14:17,080 --> 00:14:20,650 Boehner can be get from each. 105 00:14:20,760 --> 00:14:21,360 Banner. 106 00:14:23,540 --> 00:14:33,700 Mean equal to eight thousand seven hundred eighty while our divided by one hundred sixty three what 107 00:14:33,740 --> 00:14:44,740 our will give us fifty four modules mean we are going to use fifty for module in this array. 108 00:14:44,980 --> 00:14:53,870 Those fifty four modules is going to be divided in series and parallel each parallel branch is called 109 00:14:53,920 --> 00:15:06,420 a string each just drink has number of serious banner or modules the number of serious modules can be 110 00:15:06,420 --> 00:15:18,710 divined by the whole flush mean the bus voltage divided by maximum power by the voltage mean twenty 111 00:15:18,730 --> 00:15:27,340 four divided by fourteen point seventy nine all will be equal to two modules 112 00:15:30,020 --> 00:15:42,650 the next thing ze number of Z burn strings if we are going to use fifty four modules and two modules 113 00:15:43,220 --> 00:15:54,230 in series mean we are going to use fifty for over two modules in better mean twenty seven modules and 114 00:15:54,230 --> 00:16:06,380 better means the number of strings will be equal to twenty seven modules what what is that sizing of 115 00:16:06,380 --> 00:16:07,960 that solar chargers 116 00:16:10,970 --> 00:16:18,820 that kind of solar charger can be defined by the number of strength in bad times that short circuit 117 00:16:18,820 --> 00:16:27,620 got out of modules time safety factor the safety factor always equal to one point five to one point 118 00:16:27,620 --> 00:16:33,230 six let's take for this example one point fifty six 119 00:16:35,910 --> 00:16:46,440 so there's a number of strings in parallel with equal to any Seven times three point to any seven times 120 00:16:46,530 --> 00:16:56,370 one point fifty six will equal to one hundred seventy seven point seven and there means we are going 121 00:16:56,370 --> 00:17:05,560 to use is sorter it charger controller with current equal to one hundred and forty ambient 122 00:17:10,000 --> 00:17:22,950 that charge a voltage is defined by then DC bus Voltage Now you already get a reading of each component 123 00:17:23,040 --> 00:17:32,330 of TV system by manual calculation so in the next lecture I'm going to give you an excel sheet 2 is 124 00:17:32,330 --> 00:17:40,370 going to help you to get the reading of each component of b v system without going through all this 125 00:17:40,370 --> 00:17:44,920 manual calculation so see you in the next lecture.