Academic Journal
Full electrification opportunities of spray dryers in milk powder processes
| العنوان: | Full electrification opportunities of spray dryers in milk powder processes |
|---|---|
| المؤلفون: | Liang, Jierong, Andersen, Martin Pihl, Solé, Roger Padullés I, Bellemo, Lorenzo, Bergamini , Riccardo, Poulsen, Jonas Lundsted, Zühlsdorf, Benjamin, Schneider, Peter, Jensen, Jonas Kjær, Markussen, Wiebke Brix, Elmegaard, Brian |
| المصدر: | Liang , J , Andersen , M P , Solé , R P I , Bellemo , L , Bergamini , R , Poulsen , J L , Zühlsdorf , B , Schneider , P , Jensen , J K , Markussen , W B & Elmegaard , B 2022 , Full electrification opportunities of spray dryers in milk powder processes . in Proceedings of ECOS 2022 - The 35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems 2022 . ECOS , 35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of .... |
| بيانات النشر: | ECOS |
| سنة النشر: | 2022 |
| المجموعة: | Technical University of Denmark: DTU Orbit / Danmarks Tekniske Universitet |
| مصطلحات موضوعية: | High-temperature heat pump, Spray dryer, Electrification, Heat recovery, Techno-economic analysis, /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy, name=SDG 7 - Affordable and Clean Energy |
| الوصف: | The energy footprint of spray dryers is the highest among the process operations of milk powder plants. This is mostly due to heating of air up to ~240 °C from ambient temperature, which results in significant use of energy, conventionally supplied by combustion of fossil fuels. Numerous efforts have been invested in investigating opportunities for increasing the energy efficiency of spray dryers, such as heat recovery and heat pumping from the exhaust air. However, these solutions are not state-of-the-art for heating the air above ~80 °C, resulting in a low penetration of renewable energy sources in these processes. In this study, we investigate the possibility to fully electrified spray dryers by integrating a high-temperature heat pump heating the main drying airstream to a design temperature of 236 °C. The solution makes use of a novel spindle compressor. A design is performed including direct heat recovery from the exhaust air above its dew point and heat pumping of heat from the exhaust air below its dew point. Three heat pumps using natural refrigerants are integrated into the process to supply heat at different temperature levels. According to process modelling, pinch analysis, and techno-economic analysis, the trade-off between energy savings and capital cost is investigated. An energy-saving ratio between 0.55 and 0.58 is obtained, while the levelized cost of heat falls between 35.1 and 36.2 €/MWh depending on the heat exchanger temperature approach. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://orbit.dtu.dk/en/publications/4c42a412-1071-4869-8a7a-bc7acf94d207 |
| الاتاحة: | https://orbit.dtu.dk/en/publications/4c42a412-1071-4869-8a7a-bc7acf94d207 https://backend.orbit.dtu.dk/ws/files/293180995/ECOS2022_manuscript_Spray_dryerR1.pdf |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CE54D6DD |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |