Waste heat transportation system, using phase change material (PCM) from steelworks to chemical plant

Takahiro Nomura, Noriyuki Okinaka and Tomohiro Akiyama

Resources, Conservation & Recycling, 2010, vol. 54, issue 11, 1000-1006

Abstract: 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.

Keywords: Phase change material (PCM); Latent heat; Heat transportation; Exergy; CO2 emission (search for similar items in EconPapers)
Date: 2010
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0921344910000480
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:54:y:2010:i:11:p:1000-1006

DOI: 10.1016/j.resconrec.2010.02.007

Access Statistics for this article

Resources, Conservation & Recycling is currently edited by Ming Xu

More articles in Resources, Conservation & Recycling from Elsevier
Bibliographic data for series maintained by Kai Meng ().