Pati Smitarani, Navin Nandan Kumar, Verma Om Prakash, Singh Dwesh Kumar, Sharma Tarun Kumar, Agarwal Saurabh, Villar Santos Gracia, Dzul Lopez Luis Alonso, Ashraf Imran
Department of Electrical Engineering, Dr B R Ambedkar National Institute of Technology Jalandhar, Punjab 144011, India.
Department of Instrumentation and Control Engineering, Dr B R Ambedkar National Institute of Technology Jalandhar, Punjab 144011, India.
Heliyon. 2025 Jan 7;11(2):e41653. doi: 10.1016/j.heliyon.2025.e41653. eCollection 2025 Jan 30.
This study emphasizes a multi-pronged approach to improving the energy efficiency of Multi-Effect Evaporator (MEE) in the paper industry. By incorporating traditional Energy-Saving Schemes (ESSs) and innovative renewable energy sources, the study demonstrates significant potential for reducing energy consumption and environmental impact, making it a decisive pathway for industrial sustainability. Key ESS strategies include Thermo-Vapor Compressors, Feed Preheaters, and Steam- and Feed-Split, which are employed to enhance Steam Economy (SE) to evaluate MEE efficiency. This integration results in a 67.93% enhancement in SE, reducing energy consumption significantly. Further, SE enhancement is achieved by integrating flash tanks that capture and reuse excess heat, which boosts SE by an additional 5.89%, leading to a total improvement of 73% without additional energy consumption. A significant innovation in the study is the integration of Linear Fresnel Reflectors (LFRs) based solar collectors and turbine-based wind energy sources to power the MEE and reduce reliance on conventional energy. This hybrid system decreases energy dependence by 62% for the base MEE and 34% for the hybrid MEE. The results are validated by comparing them with existing studies, confirming the effectiveness of the proposed method and offering significant energy and environment savings.
本研究强调了一种多管齐下的方法来提高造纸工业中多效蒸发器（MEE）的能源效率。通过纳入传统节能方案（ESSs）和创新的可再生能源，该研究展示了在降低能源消耗和环境影响方面的巨大潜力，使其成为工业可持续发展的决定性途径。关键的ESS策略包括热力蒸汽压缩机、进料预热器以及蒸汽和进料分流，这些策略用于提高蒸汽经济性（SE）以评估MEE效率。这种整合使SE提高了67.93%，显著降低了能源消耗。此外，通过整合闪蒸罐来捕获和再利用多余热量，实现了SE的进一步提高，这使SE额外提高了5.89%，在不增加能源消耗的情况下实现了73%的总体提升。该研究的一项重大创新是整合了基于线性菲涅尔反射镜（LFRs）的太阳能集热器和基于涡轮机的风能，以为MEE提供动力并减少对传统能源的依赖。这种混合系统使基础MEE的能源依赖降低了62%，混合MEE的能源依赖降低了34%。通过与现有研究进行比较验证了结果，证实了所提方法的有效性，并实现了显著的能源节约和环境效益。
