Assume the temperature of the cold water is 25°C and it is heated to 100°C. The temperature difference is 100-25 = 75°C. The specific heat capacity of water is 4.2 × 1000 J/(Kg · °C).
To boil 1 kg of cold water, you need heat Q=1kg×4.2×1000J/(Kg·℃)×75=315000 Joules, Watt=Joules/second, < /p>
You can only calculate this, you need to know the power or heating time
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If you know the time, you can find the power, and if you know the power, you can find the time
1 kilowatt hour of electricity = 1 kilowatt hour
When we boil water in our homes, each time It takes approximately one minute to boil a pound of water (it takes about the same time to boil water with electricity and natural gas), which means it takes about 2000 minutes to boil a meal of water (of course, it's aestimate), which is more than 30 hours, and our can Each bottle of liquefied gas can be used for about 20 hours (I estimated it based on the usage time at home), which means it It takes one and a half bottles of liquefied gas to boil a ton of water.
< p>Usage Let's use my induction cooker as an example to boil water. My induction cooker takes about 1.5 minutes to boil a pound of water, and the default power for boiling water is 1800W, which means it takes about 50 hours to boil a pound of water. tonne. of water. Around 1.8 kilowatt hours of electricity are consumed per hour. It takes about 90 kilowatt hours of electricity to boil a ton of water!How much electricity does it take to boil 1 ton of water?
Usage It takes 0.0011667 kilowatt hours of electricity to lower the water temperature (temnormal temperature) of one kilogram of water of one degree.
It takes 0.0011667 kilowatt hours of electricity to raise the temperature of one kilogram of water (normal temperature) by one degree. Specific heat capacity of water According to the energy calculation formula, the energy required to increase the water temperature will be substituted into the above formula, that is, even if the temperature of water from one kilogram of water (normal temperature) increases by one. degree, it requires 0.0011667 kilowatt hours of electricity.
Calculate the specific heat capacity of water. What is the volume of one kilogram of water? Use the formula for volume and specific heat capacity to calculate. 1 kilowatt hour of electricity = 1 kWh = 3,600,000 joules. Simply convert it to thermal energy (units of joules).
How much electricity can be produced from a ton of water?
1 kilowatt hour = 1 kilowatt hour (kW h) = 3.6×10^6 Joules (J) = 860.04 kcal It takes 1 kcal to increase the temperature of one liter of water. 1 degree.
1 ton of water = 1000 liters If your water is 25℃, add it to 100℃ and it will rise to 75 degrees. Or: 1000x75=75000 kcal.
75000/860.04=87.2 kWh.
Electricity consumption refers to the amount of active electrical energy consumed by the electricity consumer, with kWh (kilowatt hour) as unit of measurement. This is the accumulated amount of active power multiplied by time and is commonly measured by electrical energy meters. According to the different objects of electricity consumption, it can be divided into the electricity consumption of a single electrical equipment and the production electricity consumption of the product. Electricity, electricity consumption of enterprises (workshops, processes and processes) (including the loss of electricity during its internal process of transport and transformation of electricityenergy).
Electricity consumption of industry, etc. Electricity consumption is mainly used for energy consumption statistics, trade settlement and evaluation of energy consumption of equipment and products. Electricity consumption is a very important characteristic quantity in the process of electricity consumption and an important indicator of energy consumption.
Reference for the above content: Baidu Encyclopedia - Electricity Consumption
1 ton = 1,000 kg, the potential energy of 1 ton of water per meter: 1000 kg*9.8 m/ S2=9800N (Newton)
Calculated based on a water level 100 m high, the work that each ton of water can perform is: W=9800N*100m=980000J (Joule)
And one kilowatt hour of electricity (1 kW.h) is equivalent to 3,600,000 J (3.6 MJ), so the potential of hydroelectricity production per ton is:
980,000/3,600,000 = 0.27 kilowatt hour of electricity
If the water level is lower than 100 meters, its value will be reduced proportionally. If the conversion efficiency of the generator is considered to be around 50%, its value will be lower.