Heat Transfer

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Water - Thermal Properties

It depends on the ionioc species present in the water and the temperature at which the heat is transferred.

Calcuim and magnesium carbonates and sulphates precipitate more easily as the temperature increases, and these can precipitate on heat exchange surfaces to create scale.

The effect can be reduced by putting tranport agents into the water, such as sodium hexaphosphate and ethylenediaminetetraacetic acid [EDTA].

All answers given thus far have been quite correct. I would just like to add that there are many different ways of handling hard waters, for example Sodium Zeolite Softeners, Lime or Lime/Soda ash and pH adjustment just to name a few. Without actually testing the water it is difficult to determine the appropriate treatment system.

The term "scaling" is usually applied to the precipitation of previously dissolved substances, that is why TDS is important for determining the scaling potential, and the term fouling is applied to the accumulation of suspended materials, hence TSS is relevant for the fouling potential.

To answer the question as asked, there is no relationship between hardness and heat transfer. However, on long term use hard water deposits insulating scale with consequences variuouysly described above. Bioramani

are we to suppose; he is trying to warm his egg noodles?