Specific energy consumption of cement in Thailand

Assawamartbunlue, Kriengkrai; Surawattanawan, Prakob; Luknongbu, Wanwiwa

doi:10.1016/j.egypro.2018.11.130

Cited by 14 publications

(5 citation statements)

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“…SEC is a commonly used as EE performance indicators (Assawamartbunlue & Luknongbu, 2020), it is the ratio between amount of energy consumption and production volume during the baseline period, which the amount of energy consumption requirement to complete a product (Assawamartbunlue, Surawattanawan, & Luknongbu, 2019). The purpose of SEC is to identify potential of energy improvements.…”

Section: Literature Of Energy Benchmarking Managementmentioning

confidence: 99%

Energy Benchmarking Management for Beer and Beverage Industry in Vietnam

2021

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Summary The purpose of this paper is to introduce basic principles of benchmarking and explain the methodology to set the specific energy consumption (SEC) target for the beer and beverage industry in Vietnam to evaluate performance, support decisions, and energy efficiency (EE) improvement. Energy benchmarking management method is used to assess EE performance. This study also presents the SEC methodology as a guide for Vietnam enterprises in the brewery sector on how to manage the EE consumption and to comply with the legal energy consumption quota in the beer and beverage production. The study supports the enterprise in how to determine the SEC and support for national EE is essential to the promotion and deployment of practical energy-saving solutions and compliance with the SEC through a suitable energy-saving target. In addition, this paper is introducing the original SEC calculation in three cases of production in the beer and beverage industry including producing beer only, producing beverage only, and producing both beer & beverage in the context of Vietnam.

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Section: Literature Of Energy Benchmarking Managementmentioning

confidence: 99%

Energy Benchmarking Management for Beer and Beverage Industry in Vietnam

2021

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“…As the only calcination unit in the whole system, the purpose of the D&C unit is to provide a high temperature environment and steady stream of heat required to carry out the chemical reaction to form the clinker. Chemical reactions in the D&C unit can be divided into two categories: decomposition of calcium carbonate and formation of clinker; the heat consumed in these reactions is countered as the effective heat of the D&C unit and can be calculated by formulas (6)(7)(8). C 3 S, C 2 S, C 3 A and C 4 AF in Equation 8are the percentages of various minerals in clinker, which can be concluded from the composition analysis of clinker.…”

Section: Decomposition and Clinker Calcination Unit (Dandc Unit)mentioning

confidence: 99%

“…With the development of suspension preheaters and pre-calciner technology, the capacity of single-cement production lines has been greatly increased at a much-reduced energy consumption rate [4,5]. The maximum production scale of a cement production line can reach 12,000 MT/D at a heat consumption of as low as 2900 kJ/kg•cl [6]. Benefiting from continuous technological advances, the modern cement industry has become more conscious of the energy efficiency of the whole production line while pursuing increased capacities of cement kilns.…”

Section: Introductionmentioning

confidence: 99%

Modeling of the Thermal Efficiency of a Whole Cement Clinker Calcination System and Its Application on a 5000 MT/D Production Line

2020

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This paper proposes that the scope of research should be extended to the whole clinker calcination system from its single device or specific process (i.e., its functional subunits) as conventionally conducted. Mass/heat flow and effective heat were first analyzed to obtain the thermal efficiencies of its subunits (φi); a thermal efficiency model of the whole system φQY was thus established by correlating the relationship between φi and φQY. The thermal efficiency model of the whole system showed that φi had a positive linear correlation with φQY; it was found that the thermal efficiency of the decomposition and clinker calcination unit (φDC) had the greatest weight on φQY, where a 1% increase in φDC led to a 1.73% increase in φQY—improving φDC was shown to be the most effective way to improve φQY. In this paper, the developed thermal efficiency model was applied to one 5000 MT/D production line. It was found that its φQY was only 61.70%—about 2.35% lower than a representative line; such decrease was caused by its low φDC and φP which, as disclosed by model, were derived from the low decomposition rate of calcium carbonate in preheated meal put into a calciner and the high excess air coefficient of secondary air. Controlled parameter optimization of this 5000 MT/D production line was then carried out. As a result, the φDC and φP of the production line were increased from 30.03% and 64.61% to 30.69% and 65.69%, respectively; the φQY increased from 61.70% to 62.55%; the clinker output of the production line increased from 5799 MT/D to 5968 MT/D; the heat consumption of clinker was reduced from 3286.98 kJ/kg·cl to 3252.41 kJ/kg·cl.

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“…In general, energy intensity is the energy consumption per unit output value in a specific statistical period [23], such as the consumption per ton of steel [24] and energy consumption per ton of product in various production processes [25] in the iron and steel industry, specific energy consumption and baseline energy consumption of cement [26], etc. Moreover, the concept of energy intensity has found applications in comparison, analysis, and assessment of energy efficiency in various industries or countries [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

A Novel Energy-Intensity Model Based on Time Scale for Quasi-Continuous Production in Iron and Steel Industry

et al. 2023

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Energy intensity is an important assessment indicator of energy consumption. Unfortunately, the traditional energy intensity model (TEIM) has obvious limitations when applied to quasi- continuous production process, especially for small time scales (STS). Therefore, a novel energy intensity model (NEIM) has been established in this study. The NEIM includes three main stages. Firstly, the statistical period and time scale have been determined. Secondly, the concept of workpiece valid weight has been proposed for a given time scale. Then the specific calculation method has also been established. Thirdly, a NEIM has been suggested according to the definition of energy intensity. The application results for a reheating furnace show that the NEIM’s effectiveness has been verified via comparison with the TEIM for large time scale (LTS) and critical time scale (CTS), whereas the NEIM still has validity at STS. Additionally, calculation results for the NEIM reflect more trend information at LTS and CTS; whereas, more dynamic information has been reflected at STS. The aim of this research was to expand the NEIM application for different time scales. Meanwhile, NEIM can also be applied to various energy-consuming facilities.

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Specific energy consumption of cement in Thailand

Cited by 14 publications

References 0 publications

Energy Benchmarking Management for Beer and Beverage Industry in Vietnam

Energy Benchmarking Management for Beer and Beverage Industry in Vietnam

Modeling of the Thermal Efficiency of a Whole Cement Clinker Calcination System and Its Application on a 5000 MT/D Production Line

A Novel Energy-Intensity Model Based on Time Scale for Quasi-Continuous Production in Iron and Steel Industry

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