1 BTU(ISO) = 1,054.5 Joules
1 Joule = 0.00094832 BTU(ISO) (rounded)
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CMH is a unit of flow rate (m3/hr or cubic metres per hour) A BTU is a British Thermal Unit, a unit of energy that is equal to around 1055 joules. You cant convert the two as they are a measure of different things, but changing BTU (or Btu) to joules will help standardise the calculations.
To convert CFH to BTU, you need to use the formula 1 CFH which is equivalent to 1000 BTUs.
Well, unfortunately there are different BTUs, each a slightly different quantity of energy.The BTU (ISO) is 1054.5 joules exactly. Let's use that one, and avoid some rounding.10 kW = (10,000 joules/second) x (3,600 seconds/hour) x (1 BTU/1,054.5 joules) = 34,139.4 BTU/hour
It isn't possible. Joules is the measure of energy and cm is a measure of distance.
How to convert Cubic meter to BTU