P C M is a good materials for storing heat energy as a sensible and latent heat .
The most cost-effective phase change material (PCM) for energy storage is the paraffin wax.
Hope this helps answer your question.
Professor Yehia Khalil
Yale University
USA
Hello Dears
Actually it depends on available material in your region / Country and also range of working temperature you need but in general as Professor Yehia Khalil said paraffin wax can be a good choice...
Best regard
Alireza
Dear Dr Khaleel
I agree with Dr. Khalil the best PCM for distillers is paraffin wax. I have done several experiment in this field and I found that paraffin was is efficient for this purpose and you can achieve it at variable melting points. So, you can get a wax at the suitable melting point you need whether high or low.
Regards
Dear Khaleel
For low milting points, many types of paraffin wax can be used for temperature ranges from 25 to 320 degrees. Above these milting points salt hydrates can be used safely.
Regards
Dear Khaleel
you must fix the phesical properties you need it in order to fix the type of paraffine you need.
Regards
For very low temperatures inorganic PCMs are most effective and good at saving energy because it has got higher density and thus occupy lesser volume for storing the same amount of energy. For high temperature organic PCMs are effective.
Dear khaleel sir,
I was also applied n-eicosane as a PCM in my Undergraduate project. I means It's also good for you.
For lower-temperature thermal energy saving, fatty acids such as lauric acid also could be considered.
It depends on the purpose you are wanting to store the energy, i.e., if you want to store the energy for cooling of building or cooling of any substances, you can select PCM with low melting point and thermal conductivity but high specific heat and latent heat value. If you want to use the PCM for repetitive use, select PCM with comparatively higher thermal conductivity.
- Badges
- Science topic