First we have to assume...
We assume as follows:
- methane is non-liquefied
- methane is pure
- methane is at NTP (normal temperature and pressure)
Then the facts:
- I am calculating at SI-units or their derivatives
- 2800 cu.ft. is approx. 79,3 cubic meters
- energy content of methane is 9.9 kWh/m3
- that gives us energy of 785,07 kWh
We are comparing this energy to a flat of 50m2, heated by district heating. So, no methane is used for heating.
On average, flat of 50m2 consumes 3600 kWh per year, so 2800 cu.ft. is enough to cover energy need of this flat for 2.6 months. NB! No heating is calculated here, see above.
So, one cubic meter of methane (35,3 cu.ft) can be compared roughly to 1 liter of gasoil (diesel) for energy content.
The power of the engine and the maximum speed of the 1970 BMW 2800 are 197 hp and 230 km/h respectively.
If dry, it will weigh approximately 2000 lbs. If wet , approximately 2800 lbs. If dry, it will weigh approximately 2000 lbs. If wet , approximately 2800 lbs.
220 horse @2800 rpm
2800
70% of 2800= 70% * 2800= 0.7 * 2800= 1,960
5% of 2800= 5% * 2800= 0.05 * 2800= 140
36% of 2800 = 36% * 2800 = 0.36 * 2800 = 1008
A kilogram of stone weighs as much as a kilogram of water. A cubic meter of stone weighs about 2800 kg while a cubic meter of water weighs exactly 1000 kg.
56020% of 2800= 20% * 2800= 0.20 * 2800= 560
89% of 2800= 89% * 2800= 0.89 * 2800= 2492
% rate:= 7/2800 * 100%= 0.0025 * 100%= 0.25%
2800