Temperature Distribution Estimation in a Dwight–Lloyd Sinter Machine Based on the Combustion Rate of Charcoal Quasi-Particles
Round 1
Reviewer 1 Report
Dear Authors,
my comments are in attached file. The paper should be corrected and more explained in my opinion.
Best regards.
Comments for author File: 
Comments.pdf
Author Response
Dear reviewer,
My co-authors and I thank you for the time and effort you have spent on our manuscript.
We appreciate the useful and accurate comments.
All the suggested changes have been made in the revised document (Manuscript #processes-744248) and have been highlighted in yellow both in the revised manuscript and in the answer letter.
Sincerely,
Ko-ichiro OHNO
Author Response File: Author Response.pdf
Reviewer 2 Report
The introduction is currently not adequate and does not contain a sufficient classification of the work within the state of the art. The use of biomass in ironmaking has been investigated before and a lot of literature is available and should be mentioned even if not all is directly related to the sintering process. At the moment no references at all are given regarding previous work in the field.
Section 2: "woody biomass powder" - Further details are missing regarding the kind of wood used and details of its origin. Previous research on biomass use and combustion of biomass has already shown, that the specific kind of biomass can have a significant influence on the combustion behaviour of biomass. So for a traceability and repeatability of the research this is vital information.
Section 2: In the experimental tests the material is heated in N2 to remove water, volatile matter and binder. So effectively calcined charcoal is tested and volatile matter (~30 mass%), which has an important contribution to e.g. the heating value of biomass is removed before investigation of the combustion behaviour. It is not stated or does not become clear if that would be the envisaged process for the sintering. Should only calcined charcoal be used for sintering or would the sintering be conducted using charcoal with properties as given in table 1?
Section 5: The results of the sintering simulation model are only valid if calcined charcoal would be used because the simulation does not take into account the effect of the combustion of the volatile matter on the heating of the sinter. Especially when showing and discussing diagrams of the simulation results (fig 12 and 13) it has to be mentioned that the effect of the VM is not included in the simulation. It should also be discussed what conclusions can really be derived from this simulation to the real process if almost 30 mass% of the fuel are not included in the simulation.
Some smaller issues are:
Line 36 "... require energy reduction." energy or GHG reduction?
Please consistently use K and do not switch between K and °C e.g. on page 5 (line 102 and fig 5) or on page 14 (fig 12 and 13).
Page 14: Please check the legend of fig 12 and 13. Coke is shown as the dotted line according to the legend and figure and description of material behaviour are not matching.
Author Response
Dear reviewer,
My co-authors and I thank you for the time and effort you have spent on our manuscript.
We appreciate the useful and accurate comments.
All the suggested changes have been made in the revised document (Manuscript #processes-744248) and have been highlighted in light blue both in the revised manuscript and in the answer letter.
Sincerely,
Ko-ichiro OHNO
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Dear Authors,
my comments are in attached file.
Comments for author File: Comments.pdf
Author Response
Dear reviewer,
My co-authors and I thank again you for the time and effort you have spent on our revised manuscript.
We appreciate the useful and accurate comments.
All the suggested changes have been made in the 2nd revised document (Manuscript #processes-744248) and have been highlighted in Green both in the revised manuscript and in the answer letter.
Sincerely,
Ko-ichiro OHNO
Author Response File: Author Response.pdf
Reviewer 2 Report
The paper can be published in the present form.
Author Response
Dear reviewer,
My co-authors and I thank again you for the time and effort you have spent on our revised manuscript.
We really appreciate your useful and accurate comments.
Thanks again.
Sincerely,
Ko-ichiro OHNO
