摘要：For the sake of making an appropriate choice for the reuse of low grade waste heat, the mechanical heat pump, steam turbine (ST), and organic Rankine cycle (ORC) are modeled by Aspen Plus. The working conditions of 100-150 degrees C waste heat temperatures, as well as 10-30 degrees C heat pump temperature lifts are simulated and calculated. The price ratio of electricity to heat is introduced as an important economic variable. The energy and economic performance of the three technologies in low grade waste heat recovery are compared and analyzed based on the exergy efficiency and annual revenue. The results indicate that in terms of the exergy efficiency, the mechanical heat pump is always the best choice. From the perspective of the annual revenue, the mechanical heat pump is the best choice in most cases. The chance that the annual revenue of the ORC and ST is greater than that of the mechanical heat pump arises only when the price ratio of electricity to heat is greater than 5. As for the payback period, all the cycles can meet the requirements of enterprises. A guide of the selection of waste heat recovery technology based on economics is drawn.

关键字：Waste heat recovery; Mechanical heat pump; Organic rankine cycle; Steam turbine; Annual revenue; Exergy efficiency

ISSN号：0360-5442

卷、期、页：卷260

发表日期：2022-12-01

影响因子：7.146700

期刊分区（SCI为中科院分区）：二区

收录情况：SCIE（科学引文索引网络版）,EI（工程索引）

发表期刊名称：ENERGY

参与作者：Tan, Zhimin,Feng, Xiao,Yang, Minbo

第一作者：王彧斐

论文类型：期刊论文

论文概要：Tan, Zhimin,Feng, Xiao,Yang, Minbo,王彧斐，Energy and economic performance comparison of heat pump and power cycle in low grade waste heat recovery，ENERGY，2022，卷260

论文题目：Energy and economic performance comparison of heat pump and power cycle in low grade waste heat recovery