IJEX致力于為在火用和熱力學優化領域的信息和思想提供一個跨學科的平臺。它出版了廣泛的原創、高質量的研究論文和輔助功能，涵蓋了從基礎研究到工業應用的各種活動。IJEX涵蓋了從機械工程到物理和化學工程到工業生態學的各種學科中的工程和非工程系統及過程的火用分析。涵蓋的主題包括熱力學系統能源相關應用工藝優化能源系統、政策、規劃火用/環境建模練習生命周期評估工業生態學部門（火用）利用廢物（火用）排放第二定律效率Thermo-和Exergo經濟學可持續發展中的火用對火用的批評與問題熵產生最小化結構理論與設計

IJEX is dedicated to providing an interdisciplinary platform for information and ideas in the field of exergy and thermodynamic optimisation. It publishes a wide range of original, high-quality research papers, and ancillary features, spanning activities from fundamental research to industrial applications. IJEX covers aspects of exergy analysis of engineering and non-engineering systems and processes in a large variety of disciplines, ranging from mechanical engineering to physics and chemical engineering to industrial ecology.Topics covered includeThermodynamic systemsEnergy-related applicationsProcess optimisationEnergy systems, policies, planningExergy/environment modellingExergetic life cycle assessmentIndustrial ecologySectoral exergy utilisationWaste exergy emissionsSecond-law efficiencyThermo- and exergo-economicsExergy in sustainable developmentCriticisms of and problems with use of exergyEntropy generation minimisationConstructal theory and design