![]() PLEASE NOTE: I have done my best to check the accuracy of the calculations in this spreadsheet, but I must assert the usual disclaimer that it is distributed without warranty, and that you use it at your own risk. Note that it is assumed that multiple tanks are all the same size and are sited on the same level if they are not, analyze each tank separately. The last panel gives estimates of the volume of water collected and stored per rainfall amount, as well as an estimate of the number of days of water use resulting from the amount of water saved from this rainfall: Also given are (1) an estimate of the number of days that the calculated volume will last, given the daily water use and (2) the amount of rainfall needed to fill the tank(s) to capacity for the given site variables: The third panel gives the relationship between water level and volume for the tank dimensions entered in the Site variables panel. Note that values can be entered only for those variables that are bolded all other (unbolded) variables are locked: Rating: 45 Full download access to any calculation is available to users with a paid or awarded subscription (XLC Pro. ![]() The second panel allows the user to set a series of variables related to the storage tank and roof characteristics of a specific rainwater collection site, as well as the volume of daily water use. Calculation Reference API 650 Oil Tank Design Pressure Vessel Design Calculation Preview. The first simply shows the values of two constants: gallons per cubic foot (7.481), and the volume of water per inch of rain that falls on a square foot of roof (7.481/12 = 0.623): The spreadsheet is divided into four panels. Condensation quantity involves determining relative humidity, the amount of water the air can carry at ambient, and the maximum water quantity.The Tank Volume Calculator is a Microsoft Excel spreadsheet that is used (1) to calculate the amount of water in one or more tanks given the water level of the tank(s), (2) to estimate the amount of rainfall needed to fill the tank(s), (3) to estimate the amount of water collected from a given amount of rainfall, and (4) to estimate the number of days calculated volumes will supply household water, given estimated daily use. Intermittent output receiver sizing involves determining air flow requirement, time of emptying phase, permitted pressure drop, receiver volume, and selecting receiver volume. The receiver sizing calculation involves determining the compressor capacity, inlet pressure, maximum temperature, cycle frequency, pressure difference, outlet temperature, and minimum volume. For some materials the oxygen content must be reduced below 15 per cent, and in some cases its concentration needs to go down to as low as six percent of the volume. The FAD calculation involves determining the selected flow, temperature, reference pressure, and compressor. Download CO2 Fire Fighting Calculation Excel Sheet Reducing the oxygen content from the normal 21 per cent in air to 15 per cent will extinguish most fires. The Tank Volume Calculator is a Microsoft Excel spreadsheet that is used (1) to calculate the amount of water in one or more tanks. We think that our tank volume calculator is an effective and powerful online tool. ![]() ![]() Each of these can be changed by pressing the arrows next to the unit measurements and selecting the correct unit from the drop down options. The compressed air system sizing calculation involves calculating the compressor FAD (free air delivery), selecting the compressor, determining the size of the receiver, and calculating the condensation quantity. Note that the default value for all lengths is inches, tank volume is cubic inches and liquid capacity is US gallons.
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