PAPERmaking! Vol4 Nr1 2018

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TO PUT IT REALLY SIMPLY, CONDENSATE IS THE HOT WATER THAT FORMS WHEN STEAM PASSES FROM THE VAPOUR TO A LIQUID STATE. “ ” :KHQZDWHU¿UVWHQWHUVWKHERLOHUDQGLVWUDQVIRUPHGLQWR steam, this transformation is achieved by the action of the latent heat. The latent heat is the form of energy that changes the water from a liquid state to a gaseous state. The feedwater absorbs the latent heat, which turns it into steam. In many industrial steam applications, the steam moves through the system, where it transfers a proportion of its latent heat into whatever it is heating. In releasing that latent heat it then turns back into a liquid – or as we know it, condensate. As we all know, condensate is hot, making it a valuable resource in terms of energy. Any loss of the latent heat within the steam system does not cause a temperature drop. So, when the steam turns back to the liquid state (or condensate) we will not see a temperature drop, because the sensible heat remains. The condensate generated by the steam heating system will normally have about 25% of the energy that the steam had, DQGFRQWDLQVYLUWXDOO\QRGLVVROYHGVROLGV5HFRYHULQJDQGUH using as much of the condensate as possible can have huge DGYDQWDJHVIRU\RXLQWHUPVRI¿QDQFLDOVDYLQJV

What is FRQGHQVDWH DQGZK\GRHV it need to be managed?

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