Mathematical modeling of heat recovery from a rotary kiln

Söğüt, M. Ziya; Oktay, Zuhal; Karakoç, T. Hikmet

doi:10.1016/j.applthermaleng.2009.12.009

Cited by 97 publications

(29 citation statements)

References 9 publications

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“…An alternative embodiment would be that of bent tubes according to a semicircular profile to match the kiln geometry as shown in Figure 2b, which more closely can resemble other literature solutions [4]. This is basically the same configuration of earlier works on this kind of equipment [5][6][7]. The resulting model has a general applicability and with minor changes can be easily modified to represent alternative configurations such as that pictured in Figure 2b.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 57%

“…Subsequently, Caputo et al [6] examined the economic feasibility of utilizing the above type of exchanger to recover waste heat from a cement kiln and feed a district heating network. Later, Söğüt et al [7] presented a mathematical model for basically the same configuration of heat recovery exchanger. However, they discussed energy and exergy balances of the equipment within the framework of the entire plant, but did not develop a detailed model for design purposes.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

“…In this paper reference to district heating was made as this is an option already mentioned in the literature [7]. Moreover, an unpublished study we previously carried out referred to the kiln of the Sacci company in Central Italy cited in Section 4.1, where a district heating application was sought given that the plant was located along the road connecting two villages, at a distance of 250 m and 600 m respectively.…”

Section: Concluding Remarks On Heat Recovery Profitabilitymentioning

confidence: 99%

See 2 more Smart Citations

Performance modeling of radiant heat recovery exchangers for rotary kilns

Caputo

Pelagagge

Salini

2011

Applied Thermal Engineering

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Abstract.Heat loss from rotating kilns may represent a significant percentage of the total energy input especially in highly energy-intensive industrial sectors such as cement production. As an alternative to traditional energy recovery methods, the possibility of recovering radiant heat lost through the kiln surface has been proposed in the literature. This may be accomplished by surrounding the kiln with a secondary external shell acting as a heat exchanger for a transfer fluid.In this work a mathematical model for sizing and performance estimation of a heat exchanger recovering waste heat from the external surface of rotating kilns is developed. The equipment has been configured as an array of pressurized water carrying tubes arranged in a longitudinal pattern on the surface of a cylindrical outer shell coaxial with the rotary kiln. An example of model application is utilized to discuss the involved heat transfer process and its impact on equipmentdesign. An economic model has also been developed to determine the optimal size of the equipment.

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Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 57%

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Section: Concluding Remarks On Heat Recovery Profitabilitymentioning

confidence: 99%

See 1 more Smart Citation

Performance modeling of radiant heat recovery exchangers for rotary kilns

Caputo

Pelagagge

Salini

2011

Applied Thermal Engineering

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“…For large industrial kilns quite some attention has been devoted to rotary kilns for cement production. Several aspects of the industrial process were addressed, earlier work being more oriented to a comprehensive CFD modelling of the various phenomena occurring in the kilns (Mastorakos et al, 1999), while recent works were more devoted to efficiency improvement in terms of emissions (Mikulčić et al, 2012) or heat recovery (Söğüt et al, 2010). Continuous roller kilns for tiles production are quite different from ovens for food processing, at least for what concerns size, temperature regimes, and thermal powers at play (up to 300 m length, 1250 °C, and 15 MW, respectively).…”

Section: Introductionmentioning

confidence: 99%

CFD Analyses of Syngas-Fired Industrial Tiles Kiln Module

Cavazzuti

Masina

Saponelli

2013

Engineering Applications of Computational Fluid Mechanics

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Industrial kilns for ceramic tiles production demand thorough control of the firing parameters to ensure uniform product quality. A given temperature profile must be imposed along the kiln length, while spanwise temperature profile should be as uniform as possible at the tiles level at any location. Due to special needs in emerging markets, interest is growing towards the use of gases produced by gasification processes as an alternative to methane. This requires specific burner design and proper re-calibration of the firing parameters. In the present work, computational fluid dynamics is used to analyse an industrial kiln section for different fuels, nominal burner powers, and burner nozzle diameters. The results are given in terms of temperature and velocity fields in the kiln room, and temperature distributions over the tiles floor. It is shown that a sensible combination of the three parameters investigated can lead to satisfactory results, even with gases having poor heating value.

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“…The cement industry is capable to co process wastes as alternate fuels and raw materials, to reinforce its competiveness and at the same time, contribute to solutions to some of society's waste problems in a way, which valorises the waste and is beneficial to the environment. [24] The different studies done by different researchers are tabulated in Table 2 and 3, on the same era. The co ordinations of utilizing waste ointments is genuinely straightforward and would require insignificant changes to the present plant Largest adjustment would be the range required for the capacity, pumping and mixing Used tires…”

Section: Energy Recovery From Waste To Utilize In Cement Plantmentioning

confidence: 99%

A Review on Thermodynamics Analysis and Waste Energy Utilization in Cement Industry

Verma¹

2017

IJMPERD

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In India, cement manufacturing process consumes about 15-20% energy among all the energy consuming industries. Reduction in energy consumption in cement production process is the prime concern. Therefore, detailed review on the energy use and reserves is essential to find out energy wastage so that essential actions could be applied to decrease energy consumption. In this paper energy use at different sections of cement industries based on the thermodynamic analysis specially Exergy analysis, alternative fuel used for cement kilns, various energy savings measures were reviewed and presented.

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Mathematical modeling of heat recovery from a rotary kiln

Cited by 97 publications

References 9 publications

Performance modeling of radiant heat recovery exchangers for rotary kilns

Performance modeling of radiant heat recovery exchangers for rotary kilns

CFD Analyses of Syngas-Fired Industrial Tiles Kiln Module

A Review on Thermodynamics Analysis and Waste Energy Utilization in Cement Industry

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