Heat energy production by quicklime and water

Discussion in 'Chemistry' started by thinhnghiem, Jun 13, 2014.

  1. thinhnghiem Registered Senior Member

    Messages:
    45
    Dears,
    All of us know that chemical reaction between calcium oxide (quicklime) with water will produce heat energy strongly by the following equation:
    Cao + H2O = Ca(OH)2 -> releases heat energy

    I have improved the reaction above to maximize the heat energy production with the following steps:
    1. I use a plastic jar whose volume is around 65.53 cm3. I put into the jar 3 full spoons of quicklime. (The volume of the spoon is around 7.85 cm3)
    2. Boil water
    3. Fill in the remaining volume of the jar with boiled water
    4. Then drop some floor cleaner liquid into the jar and shut it tightly
    Result: After step 3, the mixture begins to bubble up and overflow severely. This results from the combination of 2 heat resources, one from the chemical reaction, and the other from the boiled water itself
    Now we go to step 4. Here the additive to be used can be floor cleaner liquid as mentioned above, or dishwashing liquid, body wash etc..in general it is any foaming substance. By this, the seething mixture will be expanding more severely, and overflow the jar. Since the jar is shut tightly, the mixture itself and its heat are accumulated there, and results in the melting or breaking of the jar.
    While step 3 upgrades the heat energy released by the chemical reaction to a very high level, step 4 itself is the turning point to force this energy breaking out most severely
    Above is my way to create heat energy. The experts can consider it as a new method for energy solution. Just by a small jar with volume 65.35 cm3, I can create such significant amount of energy. If we use a larger amount, for example 1 kg of lime, the released amount of energy will be more terrible, in comparison with 1 kg of coal, or 1 m3 of petroleum, natural gas.
    Forum members can talk more to me about this topic both here and through my email address, which can be found in my profile, or provided by admin user. Another way is calling me in Vietnam by phone number +84909021475
    Nghiêm Bảo Thịnh (HCMC, Việt Nam)
     
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  3. origin Trump is the best argument against a democracy. Valued Senior Member

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    9,928
    First of all this sounds like a recipe for disastor. You should NEVER combine chemicals that have an exothermic reation like this in a closed container!!! The container could burst throwing boiling water onto you. This is very dangerous.

    Secondly your soap is probably not adding any energy it is just increasing the surface tension of the water so that the steam bubbles that are formed from the reacation do not immediatly collapse and instead form a foam.
     
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  5. exchemist Valued Senior Member

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    This idea, apart from being dangerous as Origin has observed, will not work for net energy production. This is because the manufacture of CaO - is highly ENDOTHERMIC. You have to HEAT CaCO3 to drive off CO2. You do not tell us what is on your floor cleaner but if that is adding energy to the reaction you have to think about the energy required to manufacture the floor cleaner, too.

    Understand this: it is IMPOSSIBLE to create energy. Energy is "conserved": it just changes form from one form to another.

    The value of fossil fuels is that they contain stored chemical energy which we can liberate by burning them. If you liberate energy from something manufactured, you have to subtract the energy used to make it, as that energy has to come from somewhere too.
     
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  7. thinhnghiem Registered Senior Member

    Messages:
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    Hi Origin,

    That's my observation. In step 4, with the joining of foaming substance, the mixture become burning severely. I cannot give out any explanation, but again, this is my observation. Why don't you try to replicate my experiment, its not so dangerous, in fact
     
  8. origin Trump is the best argument against a democracy. Valued Senior Member

    Messages:
    9,928
    I gave you the reason for why you observed the foaming. I am comfortable with that explanation and do not feel it is necessary to run your experiment. The expemeriment IS VERY dangerous, boiling water with an exothermic reaction in a closed container is a severe burn waiting to happen. Go to youtube and look up soda and mentos and imagine that the soda is boiling water!!

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  9. thinhnghiem Registered Senior Member

    Messages:
    45
    Hi Exchemist,

    We also have to spend effort to get fuels from nature. And this source is exhausted. My experiment is just the primary action for thinking of lime as a new source of energy.

    Just investigate which compound in floor cleaner to help in the overall result. And substract this compound only instead of using floor cleaner
     

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