scholarly journals Thermal Processing of Thermal Coal Under Pressure to Produce Semi-Coke and Thermal Energy

Author(s):  
Dmitry A. Loginov ◽  
Artem P. Chernykh ◽  
Sergey R. Islamov

The process of thermal processing of brown coals of grades 1B and 2B under external overpressure of gases in the range of 0–4.0 MPa is investigated. The dependences of the main characteristics of the obtained products – semi-coke and combustible gas-on the pressure are established. The material and energy balances of the process of thermal processing of both coal grades are given

DYNA ◽  
2021 ◽  
Vol 88 (217) ◽  
pp. 292-302
Author(s):  
Karen Paola Cacua ◽  
Ricardo Mazo-Restrepo ◽  
Pedro Alvarado

The textile sector, an important economic driving force in Antioquia, Colombia, uses great quantities of thermal energy mainly produced by coal combustion, which holds enormous potential for recovery. One of the most common processes in a textile plant is heat setting, which uses a significant amount of thermal energy to adjust the properties of fabrics, such as shrinking, stiffness, pull strength, width, and stretching. In this study, we calculate the mass and energy balances of a stenter and propose a system to recover the energy available in its exhaust gases. The energy recovery potential in this heat setting process is 800.97 kW, which represents 87.2% of the total input energy. Additionally, we evaluate different heat exchangers to recover the available heat and present criteria to select them. Finally, thermosyphons, whose thermal efficiency was theoretically determined here, offer a promising alternative for heat recovery from actual stenters.


1987 ◽  
Vol 100 (1) ◽  
pp. 53-57 ◽  
Author(s):  
L. M. Gratton ◽  
A. Miotello ◽  
C. Tosello

2011 ◽  
Vol 44 (6) ◽  
pp. 462-466
Author(s):  
A. F. Gavrilov ◽  
G. I. Dvoskin ◽  
V. F. Kornil’eva ◽  
L. M. Dudkina

2018 ◽  
Vol 22 (Suppl. 4) ◽  
pp. 1231-1247
Author(s):  
Aleksandra Novikova ◽  
Tamas Csoknyai ◽  
Milica Jovanovic-Popovic ◽  
Bojana Stankovic ◽  
Zsuzsa Szalay

Thermal energy demand in the residential building sector represents a big challenge for Serbia. In order to understand how to reduce this demand, and thereby avoiding GHG gas emissions, a bottom-up simulation model was developed. The model built the business-as-usual and two decarbonization scenarios up to 2030. For each scenario, such results as useful and final energy consumption, associated CO2 emissions, energy costs, investment costs and others were prepared at each level of the building stock segmentation. To develop such a detailed model, the topology of the residential building stock was developed and used as an input. For each individual building type, three retrofit packages of different stringency were analyzed. The paper delivers several important messages for the decarbonization of Serbia. First, it argues that the level of thermal energy services consumed by Serbian households is inadequate to address their needs. Second, the households of Serbia are likely to consume more wood than it was reported by national energy balances. Third, thermal energy efficiency retrofits can significantly reduce household energy demand at the same time as offering higher thermal comfort. However, the required investments are high and therefore benefits beyond energy cost savings should also be considered in order to make the transition to the low energy building stock economically feasible. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/TSCI181228017E">10.2298/TSCI181228017E</a><u></b></font>


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