کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1063950 948263 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Waste heat transportation system, using phase change material (PCM) from steelworks to chemical plant
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Waste heat transportation system, using phase change material (PCM) from steelworks to chemical plant
چکیده انگلیسی

This paper describes the feasibility of a latent heat transportation (LHT) system that uses phase change material (PCM) to recover waste heat at temperatures over 300 °C in steelworks and supplies it to a distillation tower of benzene, toluene, and xylene (BTX). The operating data in the proposed system – as well as in a conventional heat supply system and a sensible heat transportation (SHT) system – were calculated based on heat and material balances in order to evaluate energy requirements, exergy loss, and CO2 emissions. The results showed that an LHT system using NaOH with a solid–solid transformation temperature of 293 °C and a melting point of 320 °C as PCM has 2.76 times the amount of heat-storage density of an SHT system; additionally, it has only 8.6% of the energy requirements, 37.9% of the exergy loss, and 17.5% of the CO2 emissions of a conventional system that lack heat-recovery capabilities. The results suggest the possibility of transporting heat via high-temperature PCM from steelworks to chemical plants. Such infrastructure would offer many benefits such as energy savings, reductions in exergy loss and CO2 emissions, and the benefits associated with coproduction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Resources, Conservation and Recycling - Volume 54, Issue 11, September 2010, Pages 1000–1006
نویسندگان
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