{"title":"A Study on the Calorific Value of Biofuel Composites from Birch Phloem with Additions of Brown Coal, Pine Needles, and Oil-Containing Waste","authors":"M. V. Muradova, A. A. Ponomareva","doi":"10.3103/S0361521926600380","DOIUrl":null,"url":null,"abstract":"<p>A comprehensive study of the calorific characteristics of composite biofuels based on birch phloem has been conducted. The lower heating values of composites with varying compositions, including brown coal, oil-containing waste, and pine needles, were measured calorimetrically. Linear relationships between the calorific characteristics and the composition of the composite (e.g., bast content) were identified. Verification calculations of the combustion heat of composites with a component ratio of 1 : 1 were performed using empirical formulas by Dulong, Mendeleev, Wondraczek, Nivel, and Given, followed by conversion to lower heating values based on experimentally measured moisture and ash content. The results indicated that the smallest deviations between calculated values and experimental data for combustion heat could be achieved using Dulong’s formula.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"60 2","pages":"126 - 131"},"PeriodicalIF":0.8000,"publicationDate":"2026-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid Fuel Chemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.3103/S0361521926600380","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A comprehensive study of the calorific characteristics of composite biofuels based on birch phloem has been conducted. The lower heating values of composites with varying compositions, including brown coal, oil-containing waste, and pine needles, were measured calorimetrically. Linear relationships between the calorific characteristics and the composition of the composite (e.g., bast content) were identified. Verification calculations of the combustion heat of composites with a component ratio of 1 : 1 were performed using empirical formulas by Dulong, Mendeleev, Wondraczek, Nivel, and Given, followed by conversion to lower heating values based on experimentally measured moisture and ash content. The results indicated that the smallest deviations between calculated values and experimental data for combustion heat could be achieved using Dulong’s formula.
期刊介绍：
The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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