Researchers at UNSW Sydney have harnessed the power of ultrasonic sound waves to make espresso-strength coffee with room temperature water, cutting energy use by up to 75%.
if all that energy is used to boil water and we’re cutting that energy use by 3/4 then it’s saving 70Wh (not kWh) per litre, or 70kWh per cubic meter. that’s not much
if all that energy is used to boil water and we’re cutting that energy use by 3/4 then it’s saving 70Wh (not kWh) per litre, or 70kWh per cubic meter. that’s not much
When you’re dealing with thousands of litres per hour, it’s a fair amount.