کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5476640 1399205 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An innovative organic Rankine cycle approach for high temperature applications
ترجمه فارسی عنوان
یک رویکرد نوآورانه راکتین رابین برای برنامه های کاربردی با درجه حرارت بالا
کلمات کلیدی
حلقه های رنکین ارگانیک، موتورهای احتراق داخلی، اندازه و عملکرد سازش، غیر قابل برگشت بودن، ترکیبات آلی با درجه حرارت بالا، تجزیه و تحلیل هزینه،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
Organic Rankine Cycles (ORC) using toluene and hexamethyldisiloxane (MM) are put forward as a means of improving the efficiency of automotive heavy duty engines, and provide a reference for comparison in this study. Despite an efficiency improvement potential of 4-4.7%, the current ORC approach is not reaching the required fuel savings within the expected costs. As such, innovative pathways to improve the ORC performance and cost-effectiveness are of great importance to the research community. This paper presents a partial solution by means of a conceptual overview and simulation results for ORCs especially tailored for high-temperature applications. A fundamental revision of the heat transfer and expansion characteristics is presented, without increasing the system integration complexity. These characteristics are attributed to the use of formulated organic blends with toluene and MM as a significant blend component. The developed 22 criteria blend screening methodology is presented. Simulation results show that for an equivalent expansion volume flow ratio, and product of heat transfer coefficient and area, the blends offer a 22-24% improvement in the net power. This resulted in a 15-18% cost savings compared to the reference ORC. The simulations were conducted in Aspen HYSYS V8 using the Peng-Robinson and Wilson fluid property packages.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 115, Part 2, 15 November 2016, Pages 1436-1450
نویسندگان
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