Regarding the issue of the lower heating value of oxygen
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Oxygen should be a combustion accelerator, so oxygen itself cannot burn. Therefore, oxygen should not have a low calorific value; however, some literature indicates that the low calorific value of oxygen is 118.7 MJ/Nm3. Why is this?
This post was last edited by ylb913 on 2016-8-30 at 20:35. 1. The heat of combustion (low calorific value) applies when the water produced is in gaseous form, while the heat of combustion (high calorific value) applies when the water produced is in liquid form. In the vast majority of combustion reactions, due to the high temperatures, the heat of combustion used in calculations is that of low calorific value. 2. Your problem isn’t related to oxygen; you overlooked the substance that is being burned when describing the issue. This is probably an issue related to the way in which expressions are commonly used within your organization, or it may be a problem with the person who wrote this text not using standard expression methods.