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Journal : Jurnal Ilmu Teknik

CFD Modeling Of Waste Heat Recovery On The Rotary Kiln System in the Cement Industry Novia, Novia; Faizal, Muhammad; Liana, Septa
Jurnal Ilmu Teknik Vol 1, No 1 (2013): Jurnal Ilmu Teknik
Publisher : Sriwijaya University

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Abstract

The cement production process is one of the most energy and cost intensive in the world. In order to produce clinker, a cement industry requires the substantial energy consumption. About 70% of energy consumption lies on the unit of rotary kiln system. The higher amount of energy consumption is due to the lack of work efficiency tools leading the waste heat. This reserach was focus on modeling of the waste heat recovery in the rotary kiln system using CFD. Analysis of mass and energy balance was used to determine the sources of heat loss from kiln system. The results showed that the distribustion of the input heat to the system is a good agreement with the output energy and gave the significant insights oft the reasons for the low overall system efficiency. The system efficiency is obtained of 53 %. The major heat loss sources have been determined as kiln exhaust (21.88% of total input), cooler exhaust to stack (9.62 % of total input) and heat loss astemated as heat from kiln surface (13.54 % of total input). The amount of heat energy can be absorbed by air amounted to 163,080 Kcal / hour and can be used as air for combustion of fuel. Based on data calculation, the amount of coal can be saved amounted to 738 kg / day.
Co-Authors Aa Zezen Zaenal Abidin, Aa Zezen Zaenal Abidin, Aa Zezen Zenal Adipati Napoleon Ahmad Zamakhsari, Ahmad Amelia Sri Kusuma Dewi, Amelia Sri Kusuma Amelia, Delvi Audry Andaniari, Putu Linda Anggraini, Rima Berti Aprianti, Tine Ariyanti, Ratna Dewi Asmara, Andani Aulia, Regita Faza Auliani, Bulan Azizah, Farinda Hauna Carkiman, Carkiman David Bahrin Dedi Rohendi Dewi Gunawati Dwi Budi Santoso Dwipayana, Hendra Fakhili Gulo Ferdian, Irwan Fitrializa, Ulfa Fitriana Fitriana Hanifah, Farhah Hasanudin Hasanudin Hery Firdaos, Ikang Hilda Zulkifli Ikhsan, Bintang Alnur Indah Puspita, Indah Ishak, Khodijah Iskandar Othman, Mohd. Fairuz Isnayanti, Hanifah Izzudin, Muhammad Jaya, Hendra Kusuma Kaswandi Kurnia, Dwi Miftha Kusmindari, Christofora Desi Leily Nurul Komariah Mahilda, Sukma Mardalena Mardalena Meilando, Rizky Meriyani, Depita Mildaeni, Itsna Nurrahma Muhammad Iqbal Harisuddin MUHAMMAD SAID Mursyidi, Wathroh Murti, Sri Djangkung Sumbogo Murti, Sri Djangkung Sumbogo Mustagfiroh, Mustagfiroh Mustari Mustari Nasrullah Nasrullah Natasha, Nara Novia Novia Novia Zalmita Nurhayati Nurhayati Nurjabar, Alifia Nurjannah Nurjannah Permana , Ardi Prabowo, Muhammad Ilham Arief Prayesi, Mutiara Rizki Putra, Imam Gunawan Rahayu, Atika Rahmat, Aldi Ramadan, Wanda rendana, muhammad Ria Komala Rida, Cut Nova Rif'at, Aditya M RIZCITA PRILIA MELVANI Ruhiyat, Ilham Rusnaini Rusnaini Saidina Putri, Nabila Sari, Eva Dwi Kumala Selamat, Muhammad Isa Septa Liana Shadrii, Yushlih Narsil Suhendri Suhendri Suherman, Mela Oktora Susanti, Vina Syahril Hasan - Politeknik Sains dan Teknologi Wiratama Maluku Utara, Syahril Hasan Teguh, Dedi Tjatursari Widiartin Tuty Emilia Agustina Usep Tatang Suryadi, Usep Tatang Yuli Murdianingsih, Yuli