Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study
This paper deals with the energy audit and heat recovery system modeling and design , taking a cement factory in Ethiopia as a case study. The system is a dry type rotary kiln equipped with a sixth stage cyclone type preheater , pre - calciner and grate cooler. The kiln has a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Malaysia Pahang
2015
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/11908/ http://umpir.ump.edu.my/id/eprint/11908/1/fkm-2015-ayu-Energy%20audit%20and%20waste%20heat-full.pdf |
| _version_ | 1848819103018516480 |
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| author | T. T., Ayu M. H., Hailu Hagos, F. Y. Atnaw, Samson M. |
| author_facet | T. T., Ayu M. H., Hailu Hagos, F. Y. Atnaw, Samson M. |
| author_sort | T. T., Ayu |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This paper deals with the energy audit and heat recovery system
modeling and design
,
taking
a cement factory in Ethiopia
as a case study. The system is a dry type rotary kiln
equipped with
a
sixth stage cyclone type
preheater
, pre
-
calciner and grate cooler. The kiln
has a capacity of 3
,
000 tons/day. The energy auditing has been performed based on the
data collected from control volume of the kiln system for
a
ten
-
month
period
. The result
shows that 25.23% of the total heat input is released to the environment through the
preheater
and an
other 15.58% through the cooler exhausts. The west heat recovery system
(WHRS) can produce a gross power of 5.26 MW as long as the kiln is
i
n
operation
. The
generated power can cover all the electrical
energy
consumption of the kiln system
whether there is
a power supply from the grid or not. Therefore, the company can save
up
to
536,222.10 USD per year due to the production of clinker using
their
own power source
and avoiding the loss
sustained
by the company due to power interruption from the grid |
| first_indexed | 2025-11-15T01:48:14Z |
| format | Article |
| id | ump-11908 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:48:14Z |
| publishDate | 2015 |
| publisher | Universiti Malaysia Pahang |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-119082018-02-02T07:12:47Z http://umpir.ump.edu.my/id/eprint/11908/ Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study T. T., Ayu M. H., Hailu Hagos, F. Y. Atnaw, Samson M. TJ Mechanical engineering and machinery This paper deals with the energy audit and heat recovery system modeling and design , taking a cement factory in Ethiopia as a case study. The system is a dry type rotary kiln equipped with a sixth stage cyclone type preheater , pre - calciner and grate cooler. The kiln has a capacity of 3 , 000 tons/day. The energy auditing has been performed based on the data collected from control volume of the kiln system for a ten - month period . The result shows that 25.23% of the total heat input is released to the environment through the preheater and an other 15.58% through the cooler exhausts. The west heat recovery system (WHRS) can produce a gross power of 5.26 MW as long as the kiln is i n operation . The generated power can cover all the electrical energy consumption of the kiln system whether there is a power supply from the grid or not. Therefore, the company can save up to 536,222.10 USD per year due to the production of clinker using their own power source and avoiding the loss sustained by the company due to power interruption from the grid Universiti Malaysia Pahang 2015 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/11908/1/fkm-2015-ayu-Energy%20audit%20and%20waste%20heat-full.pdf T. T., Ayu and M. H., Hailu and Hagos, F. Y. and Atnaw, Samson M. (2015) Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study. International Journal of Automotive and Mechanical Engineering (IJAME), 12. pp. 2983-3002. ISSN 1985-9325(Print); 2180-1606 (Online). (Published) http://ijame.ump.edu.my/images/Volume_12/14_Ayu%20et%20al.pdf DOI: 10.15282/ijame.12.2015.14.0249 |
| spellingShingle | TJ Mechanical engineering and machinery T. T., Ayu M. H., Hailu Hagos, F. Y. Atnaw, Samson M. Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study |
| title | Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study |
| title_full | Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study |
| title_fullStr | Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study |
| title_full_unstemmed | Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study |
| title_short | Energy Audit and Waste Heat Recovery System Design for a Cement Rotary Kiln in Ethiopia: A Case Study |
| title_sort | energy audit and waste heat recovery system design for a cement rotary kiln in ethiopia: a case study |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/11908/ http://umpir.ump.edu.my/id/eprint/11908/ http://umpir.ump.edu.my/id/eprint/11908/ http://umpir.ump.edu.my/id/eprint/11908/1/fkm-2015-ayu-Energy%20audit%20and%20waste%20heat-full.pdf |