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HouseBank

1,996 bytes added, 15:47, 26 April 2016
m
→‎Total Daily Load
Use whichever number is the highest for all future calculations. Let’s call this the <i>Total Daily Load</i>.
 
<table width="80% border="1"><tr><th>Line</th> <th>Item</th> <th>Amount</th> <th>Calculation</th> <th>Comments</th></tr>
<tr><td>A</td><td> Total Daily Load AC AH</td><td> 200</td><td> &nbsp; </td><td> Normalize to 12 or 24 V</td></tr>
<tr><td>B</td><td> Total Daily Load DC AH</td><td> 50</td><td> &nbsp; </td><td> Normalize to 12 or 24 V</td></tr>
<tr><td>C</td><td> Total Daily Load AH</td><td> 250</td><td> = A + B</td><td> </td></tr>
<tr><td>D</td><td> Charging Interval (days) </td><td> 1</td><td> &nbsp; </td><td> </td></tr>
<tr><td>E</td><td> Battery Drain Between Charges AH</td><td> 250</td><td> = C * D</td><td> Amount to recharge</td></tr>
<tr><td>F</td><td> Battery Efficiency Factor</td><td> 1.1</td><td> &nbsp; </td><td> Typically 90%</td></tr>
<tr><td>G</td><td> Charging (Safety) Factor %</td><td> 400</td><td> &nbsp; </td><td> Use 350-400+</td></tr>
<tr><td>H</td><td> House Bank Required AH</td><td> 1100</td><td> = E * F * G</td><td> </td></tr>
<tr><td>I</td><td> Battery AH</td><td> 275</td><td> &nbsp; </td><td> Use the AH rating of selected battery</td></tr>
<tr><td>J</td><td> Number of 8D Batteries</td><td> 4</td><td> = H / I</td><td> </td></tr>
<tr><td>K</td><td> Battery Capacity</td><td> 1100</td><td> = I * J</td><td> Reality check in case H and K are not equal. </td></tr>
<tr><td>L</td><td> Charging Factor %</td><td> 33</td><td> &nbsp; </td><td> 25% is the norm for flooded cell; 40% for gel cell; 50+% for AGM</td></tr>
<tr><td>M</td><td> Basic Charging Rate AH</td><td> 363</td><td> = K * L</td><td> </td></tr>
<tr><td>N</td><td> Fixed DC Load AH</td><td> 5</td><td> &nbsp; </td><td>
<tr><td>O</td><td> Fixed AC Load AH</td><td> 50</td><td> &nbsp; </td><td>
<tr><td>P</td><td> Other DC Load AH</td><td> 0</td><td> &nbsp; </td><td>
Load while charging</td></tr>
<tr><td>Q</td><td> Required Charging Capacity AH</td><td> 418</td><td> = M + N + O + P</td><td> </td></tr>
<tr><td>R Time to Charge Hours</td><td> 0.7</td><td> = E / M</td><td> </td></tr></table>
== Capacity of House Bank Required ==