Natural Gas Consumption Reducing in Aluminum Melting Furnaces by Heat Recovery of Flue

2016 ◽  
Vol 14 (11) ◽  
pp. 17-22
Author(s):  
Vasile Bratu ◽  
Aurel Gaba ◽  
Elena Valentina Stoian ◽  
Florina Violeta Anghelina
Keyword(s):  
Mathematical Model ◽  
Natural Gas ◽  
Computer Software ◽  
Melting Furnace ◽  
Gas Consumption ◽  
Regenerative Burner ◽  
Natural Gas Consumption ◽  
Energy Balances ◽  
The Mathematical Model ◽  
Consumption Saving

Abstract This article presents different solutions to reduce natural gas consumptions of the aluminum melting furnaces, through recovery of the heat from flue gases. In order to be able to analyze the recovery solutions, a mathematical model for energy balance of these furnaces was adapted. This mathematical model allows drawing up energy balances together with the main working technique and economical parameters of these types of furnaces, in actual conditions, and the same, under optimizing conditions, by applying recovery solutions. The mathematical model which can elaborate energy balances for aluminum melting furnaces, was transposed in M. Excel based software, where the quantification of different solutions for natural gas consumption saving is possible. One of the applications of this computer software for an aluminum melting furnace, either for actual working conditions or per upgraded furnace by use an air pre-heater, materials pre-heater, or a regenerative burner system, is presented in this article.

Application of Logistic Mathematical Model to Simulate the Consumption of Natural Gas in Brazil Until 2020

2012 ◽  
Author(s):  
Claudemir Duca Vasconcelos ◽  
Sérgio Ricardo Lourenço ◽  
Antonio Carlos Gracias ◽  
Valter Librais
Keyword(s):  
Mathematical Model ◽  
Population Dynamics ◽  
Natural Gas ◽  
Environmental Benefits ◽  
Linear Regression Method ◽  
Total Energy Consumption ◽  
Proposed Model ◽  
Gas Consumption ◽  
Natural Gas Consumption ◽  
Million Cubic Meter

Over the next two decades Brazil expects to see an increasing share of energy provided by natural gas. Natural gas use in 2010 was 10.2% of the total energy consumption and comprised 73 million cubic meter per day. Natural gas is considered one of the main energy sources which contributes and will contribute to the development of the country by providing economic, social and environmental benefits. This work uses population dynamics mathematical model (Verhulst) in order to analyze the evolution of natural gas consumption in Brazil within a forecast until 2020. The Verhulst model, also known as “logistic”, has been advanced in its application and shows that the population dynamics mathematical models, within their basic assumptions, may allow estimating the growth of a population or other variable with the same characteristic. The calculation to solve the differential equations, linear regression, method of least squares and graphics were performed using the MatLab software. Through simulations it was found that the mathematical model can be applied to natural gas consumption in Brazil. Simulations using the proposed model show a tendency of saturation in the consumption between 70 and 90 million cubic meters per day. These numbers are below the projected numbers until 2020 according to forecast presented in the energy plan. The results of this study indicate that the growth of natural gas consumption is stable and is within the limit of saturation related to the Brazilian market.

EXPERIENCE, PROSPECTS AND PROBLEMS OF COOPERATION BETWEEN CHINA AND TURKMENISTAN IN THE FIELDOF NATURAL GAS

2019 ◽  
pp. 323-329
Author(s):  
Y. JIA
Keyword(s):  
Natural Gas ◽  
Central Asia ◽  
Oil And Gas ◽  
The European Union ◽  
Multilateral Cooperation ◽  
Industrial Chain ◽  
The Usa ◽  
Gas Consumption ◽  
Slow Progress ◽  
Natural Gas Consumption

Since 2007, the use of natural gas in China depends on the import, and with an increase in natural gas consumption, gas imports are also constantly growing. In 2018, Chinas natural gas imports approached 100 billion cubic meters, which is 70 times more than in 2006. In recent years, increasing attention has been paid to the use of natural gas in China. Turkmenistan is Chinas main source of pipeline gas imports, and China is Turkmenistans largest exporter of natural gas. In the framework of the traditional model of oil and gas cooperation, China and Turkmenistan are facing such problems as the uniform content of cooperation, lack of close ties in the field of multilateral cooperation and slow progress in the development of the entire industrial chain. Cooperation between China and Central Asia in the field of oil and gas is increasingly affecting the nerves of other countries, except the five countries of Central Asia, but including Russia, Afghanistan, Pakistan, India, Iran and other countries of the Middle East, Japan, South Korea, etc. and even the European Union and the USA. Despite the favorable trading environment for both parties, there are also problems in the domestic market of Turkmenistan and the risks of international competition.

Forecasting the daily natural gas consumption with an accurate white-box model

Energy ◽  
2021 ◽  
pp. 121036
Author(s):  
Nan Wei ◽  
Lihua Yin ◽  
Chao Li ◽  
Changjun Li ◽  
Christine Chan ◽  
...  
Keyword(s):  
Natural Gas ◽  
Box Model ◽  
Gas Consumption ◽  
Natural Gas Consumption

Forecasting natural gas consumption using Bagging and modified regularization techniques

2022 ◽  
pp. 105760
Author(s):  
Erick Meira ◽  
Fernando Luiz Cyrino Oliveira ◽  
Lilian M. de Menezes
Keyword(s):  
Natural Gas ◽  
Regularization Techniques ◽  
Gas Consumption ◽  
Natural Gas Consumption

scholarly journals Analysis of Natural Gas Consumption by the Industrial Sector of Bangladesh

2013 ◽  
Vol 27 ◽  
pp. 1-7
Author(s):  
Mahbubur Rahman ◽  
Mohammad Tamin ◽  
Lutfar Rahman
Keyword(s):  
Natural Gas ◽  
Chemical Engineering ◽  
Industrial Sector ◽  
Policy Makers ◽  
Usual Practice ◽  
Consumption Data ◽  
Depth Analysis ◽  
Gas Consumption ◽  
Natural Gas Consumption ◽  
First Time

The natural gas consuming sectors in Bangladesh are: i) Power, ii) Fertilizer, iii) Industry, iv) Captive power, v) Domestic, vi) Commercial, and vii) Transportation (CNG). Broad sectoral consumptions are reported in various literatures and reports, however, further breakdown of the data are difficult to find, and neither reported. The combined consumption of fertilizer, industry and captive power sectors is a significant portion of national gas consumption. This paper presents for the first time an in-depth analysis of the industrial sector gas consumption. Data were collected for each type of industry, and grouped according to the United Nations Framework Convention for Climate Change (UNFCCC). Captive generation is included in the industrial sector consumption, unlike the usual practice of considering it under the power generation. It is noticed that garments, textile and leather industries together have shown remarkable growth in the last decade. All the industries are more or less related to the national GDP growth. Some are export oriented while others address the internal market. Therefore analysis presented here should be helpful for policy makers to prioritize the sectors in case preferential supply and tariff adjustments become necessary.DOI: http://dx.doi.org/10.3329/jce.v27i1.15846 Journal of Chemical Engineering, IEB Vol. ChE. 27, No. 1, June 2012: 1-7

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