Waste heat recovery at blast furnace stoves at IISCO, SAIL
[]
Host party(ies) India
Methodology(ies) ACM0012 ver. 3
Standardised Baselines N/A
Estimated annual reductions* 134,099
Start date of first crediting period. 01 Oct 08
Length of first crediting period. 7 years
DOE/AE RINA Services S.p.A.
Period for comments 12 Mar 09 - 10 Apr 09
The operational/applicant entity working on this project has decided to make the Project Design Document (PDD) publicly available directly on the UNFCCC CDM website.
PDD PDD (715 KB)
Local stakeholder consultation report: N/A
Impact assessment summary: N/A
Submission of comments to the DOE/AE Compilation of submitted inputs:
1.Page-2 of document indicates CER of 62551 t/yr against the claimed CER of 134099 t. Even emission reduction calculated at page no 21 indicates reduction of CO2 is 62551 t/yr.
2. Page No 5 : waste gas flow rate indicated in the table is 193 Nm3/hr is very low.waste gas outlet temperature seems to be very high i.e. 185 C
3.Use of ACM0012 and actual heat calculation is not matching.
4. Page 14 : In the table, The unit of amount of waste heat recovered  mentioned is TJ/t of coke, it seems it is TJ/tonne of hot metal. The quantity of 5484 TJ/thm is also very high. It looks like 5484 TJ but again it needs to be checked for gas generation, its calorific value.
5.Page 14: In the table, production of processes shown is 270000 t coke but it is actually hot metal. 
6. Page 14 : Table indicating heat exchanged for gas and air seem to be very high i.e 281 TJ/yr and 210 TJ/yr as per the flow and temperature mentioned in table at page 5. Validator needs to assess the actual heat recovered. Both the recovery can be 7.5 Gcal/hr (65 TJ/yr) and 5.5 Gcal/hr (TJ/yr) as mentioned in the table at page 5.
7. Page 18 : what is the role of CO2 emission factor of coke as indicated in the table
8. Page 20 : How CO2 emission factor of 102 t CO2/TJ for coke has been involved in the calculation. Itís all about Blast furnace gas waste heat recovery,It seems there is serious calculation and methodology problem and validator has not really gone into details or not aware of the system
9. Page 22; Net quantity of heat supplied is missing
Submitted by: shyam


The comment period is over.
* Emission reductions in metric tonnes of CO2 equivalent per annum that are based on the estimates provided by the project participants in unvalidated PDDs