nativelover Posted November 8, 2010 Report Share Posted November 8, 2010 hi everyone my assignment is due in tommorow and i have two questions that i do not understand the full capacity of an aquarium that is 1metere x 500mm x 500mm volume= empty weight= total weight= the full capacity of an aquarium that is 600mm x 300mm x 300mm volume= empty weight= total weight= any help would be so good thanks Quote Link to comment Share on other sites More sharing options...
livingart Posted November 8, 2010 Report Share Posted November 8, 2010 there is a calculator here http://www.fnzas.org.nz/index.php?PG=tank Quote Link to comment Share on other sites More sharing options...
Stella Posted November 8, 2010 Report Share Posted November 8, 2010 In a way that you will actually learn something: Calculating the volume of a rectangular or square 3D shape (eg fish tank) is LITERALLY length TIMES width TIMES height. The first part (L x W) gives you the area, then multiplying that by the height (x H) makes it the three dimensional volume. For any other shape you still need to calculate the flat cross-sectional area. So for a cylinder you first calculate the area of the circle, then multiply it by the length. For a hexagon, work out the area of the hexagon, then multiply it by the length. Next part, volume. A litre of water weighs one kilogram (roughly, this alters slightly with temperature and salinity) Empty weight. For that you need to know the thickness of the glass, and work the square metreage of all the panes added together. Then work out the weight of each pane (there is probably a standard weight-per-square metre). Then multiply the weight per square metre by the number of square metres. (also, just google!! There are a billion pages clearly explaining this sort of maths, and calculators like LivingArt posted) Quote Link to comment Share on other sites More sharing options...
Barrie Posted November 8, 2010 Report Share Posted November 8, 2010 glass weights 2.5kgs per square meter per mm of thickness 1000 x 1000 x 2.5 = 2.5kgs 2.5kgs x say 6mm thick = 15kgs Quote Link to comment Share on other sites More sharing options...
smidey Posted November 8, 2010 Report Share Posted November 8, 2010 stella has given a good explanation. here is an easy to use calculator http://fishkeepers.co.nz/index.php/tank_builder/ Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 9, 2010 Report Share Posted November 9, 2010 PM Barrie, He will be able to give you figures for the weight of glass per are at a given thickness so you can work out the weight of an empty tank. Quote Link to comment Share on other sites More sharing options...
Barrie Posted November 9, 2010 Report Share Posted November 9, 2010 glass weights 2.5kgs per square meter per mm of thickness 1000 x 1000 x 2.5 = 2.5kgs 2.5kgs x say 6mm thick = 15kgs Already done it Alan :lol: Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 9, 2010 Report Share Posted November 9, 2010 Yo da man Quote Link to comment Share on other sites More sharing options...
livingart Posted November 9, 2010 Report Share Posted November 9, 2010 Yoda Barrie Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 9, 2010 Author Report Share Posted November 9, 2010 thanks everyone for the help i used the fnzas calculater thing and good an answer but was unsure of the glass thickness etc because it didnt state in the question so i just put 10mm for thickness hope it is right because it is all handed in :-? Quote Link to comment Share on other sites More sharing options...
livingart Posted November 9, 2010 Report Share Posted November 9, 2010 10mm will give you a good safety factor at those size tanks Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 9, 2010 Author Report Share Posted November 9, 2010 ok cool thank you :bounce: :bounce: Quote Link to comment Share on other sites More sharing options...
smidey Posted November 9, 2010 Report Share Posted November 9, 2010 10mm has a safety factor of 5 which is massive, my 2.0m x 0.45m tank is made from 8mm which has a safety factor of 2.5 Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 15, 2010 Author Report Share Posted November 15, 2010 hi everyone i got the results back for the second time and failed the two questions again could someone please tell me ive used the website and asked my maths teacher but am still unsure. it is due tommorow so need the answers urgently thanks the full capacity of an aquarium that is 1metere x 500mm x 500mm volume= empty weight= total weight= the full capacity of an aquarium that is 600mm x 300mm x 300mm volume= empty weight= total weight= Quote Link to comment Share on other sites More sharing options...
smidey Posted November 16, 2010 Report Share Posted November 16, 2010 all of the answers are above but do we have all the info? Does it have lids? What thickness of glass? Any additional bracing? there are several variables to your question. to work out the litres exactly you need to determine the glass thickness, this thickness will also determine the empty & total weight. 1.0x0.5x0.5 volume: is 0.25m3/250L overall (outside of tank panels), for actual litres you will need to deduct the glass thickness. Quote Link to comment Share on other sites More sharing options...
ryanjury Posted November 16, 2010 Report Share Posted November 16, 2010 Did your teacher tell you why you failed? It is all very simple maths but if he wants to get complicated then (as Smidey has suggested) you can add glass thickness into volume, bracing in weight and even how full the tank is, in a practical sense if you have gravel/rocks in the tank it can change things even more. But IMO if the teacher wants that then he has to give all the details in the question. Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 16, 2010 Author Report Share Posted November 16, 2010 it is all done out of school and i just send away my papers i put the full capacity of an aquarium that is 1metere x 500mm x 500mm volume= 250 litres empty weight= 51kg total weight=28kg the full capacity of an aquarium that is 600mm x 300mm x 300mm volume= 47litres empty weight=18kg total weight=65kg and got them wrong sorry im just stressing because its due tommorow morning and its my last attempt so if i get it wrong i fail my whole course Quote Link to comment Share on other sites More sharing options...
smidey Posted November 16, 2010 Report Share Posted November 16, 2010 again, you need to advise the details so we/you can be accurate. it is the same as simply asking "how long is a piece of string?" are you after exact litres inside the tank or just overall volume? Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 16, 2010 Author Report Share Posted November 16, 2010 thats all the question says sorry ? but in the manual it says the formula to calculate the volume of an aquarium is lengthxwidthxheight= volume in cubic metres the calculation is L x W x H x 1000 = litres COMMON SIZED AQUARIUMS length height minium glass thickness 1200 500 6.8 1200 500 9.3 1800 600 9.1 1800 600 12.6 1200 300 3.2 1200 300 4.4 600 600 6.0 600 600 8.3 300 600 4.4 300 600 6.0 1400 500 6.9 1400 500 9.6 1600 600 9.1 1600 600 12.6 2400 600 9.1 2400 600 12.6 2400 500 6.9 2400 500 9.6 1800 700 11.5 1800 700 15.8 2030 830 14.4 2030 830 19.9 1200 940 15.0 1200 940 20.7 400 300 2.7 400 300 3.7 600 300 3.0 600 300 4.1 600 450 5.0 600 450 6.8 1000 700 9.6 1000 700 13.3 Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 16, 2010 Author Report Share Posted November 16, 2010 sorry they had spaces but when i clicked enter went all together Quote Link to comment Share on other sites More sharing options...
blueyes Posted November 16, 2010 Report Share Posted November 16, 2010 the full capacity of an aquarium that is 1metere x 500mm x 500mm volume= 250 litres empty weight= 51kg total weight=28kg I could be wrong on this one, but wouldn't the total weight be more than the empty weight? Quote Link to comment Share on other sites More sharing options...
smidey Posted November 16, 2010 Report Share Posted November 16, 2010 this is with no lids using 8mm glass Quote Link to comment Share on other sites More sharing options...
smidey Posted November 16, 2010 Report Share Posted November 16, 2010 I could be wrong on this one, but wouldn't the total weight be more than the empty weight? i took that as a typo of 280kg Quote Link to comment Share on other sites More sharing options...
nativelover Posted November 16, 2010 Author Report Share Posted November 16, 2010 yeah sorry got them wrong way around :roll: Enter the Aquarium Dimensions in mm. Zero Values will stop the calculation. Aquarium Height 300mm Aquarium Length 600mm Aquarium Width 300mm Water Height 270mm Glass Thickness Front 3.0 Glass Thickness Sides 3.0 Glass Thickness Bottom 3.0 Aquarium Volume = 51.866892 Litres Empty Aquarium Weight (approx) = 5 kg Aquarium Total Weight (approx) = 56 kg would this be right ? Quote Link to comment Share on other sites More sharing options...
Jaxxnz Posted November 16, 2010 Report Share Posted November 16, 2010 hey man go for the basic..just tick A)B)C)D.. :lol: i can see many sample of cal given, you can do..! Quote Link to comment Share on other sites More sharing options...
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