Techno-economic comparison of a high-temperature heat pump and an organic Rankine cycle machine for low-grade waste heat recovery in UK industry
Techno-economic comparison of a high-temperature heat pump and an organic Rankine cycle machine for low-grade waste heat recovery in UK industry
复制标题
英国工业中用于低品位余热回收的高温热泵和有机朗肯循环机的技术经济比较
DOI：
10.1093/ijlct/ctt029
复制
发表时间：
2013
影响因子：
2.3
通讯作者：
Law R
中科院分区：
文献类型：
--
作者：
Law R
本文介绍了高温热泵和有机朗肯循环(ORC)装置回收低品位废热的比较，用于英国无机化学品的案例研究。从表面上看，这两种技术似乎同样适合在这里使用；因此，对这两种技术进行建模是为了提供数据，以便从预期的技术和经济性能方面进行比较。这两种技术在本案例研究中都被证明是可行的，热泵有助于显著降低工厂的天然气需求，而ORC产生显著的净发电量。这导致每项技术从经济和环境角度来看都是有吸引力的。然而，拟议的ORC实现了更大的潜在温室气体减排(499吨二氧化碳当量/年，而不是401吨二氧化碳当量/年)和更大的潜在成本节约(69 000 GB/年，而不是37 800 GB/年)。因此，在这种情况下，ORC机器被证明是首选技术。在延续公用事业成本趋势的基础上进行了敏感性分析，结果表明，ORC电厂在未来几年将获得盈利，而热泵系统的潜在利润到2020年将减少到几乎为零。这些结果表明，兽人在未来几年可能会得到进一步利用，而热泵的使用可能会减少。
This paper presents a comparison of a high-temperature heat pump and an organic Rankine cycle (ORC) plant for the recovery of low-grade waste heat for a UK inorganic chemicals case study. Superficially, the two technologies appear equally suitable for use here; therefore, both technologies are modelled in order to provide data for a comparison in terms of expected technical and economic performance. Both technologies are proven to be feasible in this case study, with the heat pump helping to significantly reduce the natural gas requirement of the plant and the ORC producing a significant net output of electricity. This leads to each technology being attractive from the economic and environmental viewpoints. However, the proposed ORC achieves greater potential greenhouse gas reductions (499 tCO2eq/year as opposed to 401 tCO2eq/year) and greater potential cost savings (£69 000/year as opposed to £37 800/year). Therefore, the ORC machine is shown to be the preferred technology in this case. A sensitivity analysis based on continuation of the utility cost trends is performed and shows that the ORC plant would gain in profitability in future years whereas the potential profit of the heat pump system would diminish to almost zero by 2020. Such results suggest that ORCs may be further utilised in future years whilst the use of heat pumps may decline.
DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
S. Khan;I. Khan;Engr. Hashmat Khan;Engr. Qazi Waqar Ali
通讯作者：
Engr. Qazi Waqar Ali
影响因子：
6.4
作者：
Aneke, Mathew;Agnew, Brian;Masheiti, Salah
通讯作者：
Masheiti, Salah
影响因子：
6.4
作者：
R. Law;A. Harvey;D. Reay
通讯作者：
R. Law;A. Harvey;D. Reay