3 ms·
As stated in technical parameters: the water pump output is 30-1500 liters/hour, it means max 0.4 liter per second. Assuming it raises the temperature of water
by lafar6502 13y ago
As stated in technical parameters: the water pump output is 30-1500 liters/hour, it means max 0.4 liter per second. Assuming it raises the temperature of water by 40 degrees K, the energy output per second is 4200J/kgK 0.5kg * 40K = 84000 Joules/sec = 84 kW. Assuming it draws 167kW, it's much worse than any electric water heater.
- lafar6502 13y agoAnd nowhere near the claimed 1MW... Am I wrong or they didn't even bother to do the math properly?
- gus_massa 13y agoNice finding! But let’s be optimistic! If we pick the maximum range in the technical specification [1] and suppose that the temperature difference were 120°C then it would only generate 0.21MW [2]. Just in case, I checked and at 4Bar, the boiling point of water is 144°C [3], so the device is not producing vapor, only hot water. [1] http://ecat.com/ecat-products/ecat-1-mw/ecat-1mw-technical-data http://ecat.com/ecat-products/ecat-1-mw/ecat-1mw-technical-d... [2] http://www.wolframalpha.com/input/?i=1500+kg%2Fhr+*+1+cal%2F%28g%C2%B0C%29+*+120%C2%B0C+to+Mwatts&a=UnitClash_*cal.*CaloriesThermochemical.dflt--&a=UnitClash_*g.*Grams.dflt--&a=UnitClash_*Mwatts.*Megawatts.dflt--&a=UnitClash_*%C2%B0C.*DegreesCelsiusDifference-- http://www.wolframalpha.com/input/?i=1500+kg%2Fhr+*+1+cal%2F... [3] http://www.engineeringtoolbox.com/boiling-point-water-d_926.html http://www.engineeringtoolbox.com/boiling-point-water-d_926....