scholarly journals Integration of coal gasification and waste heat recovery from high temperature steel slags: an emerging strategy to emission reduction

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yongqi Sun ◽  
Seetharaman Sridhar ◽  
Lili Liu ◽  
Xidong Wang ◽  
Zuotai Zhang
Keyword(s):  
High Temperature ◽  
Emission Reduction ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Coal Gasification ◽  
Waste Heat

Waste Heat Recovery and Utilization in Cotton Manufacturing Enterprise: Energy Saving and Emission Reduction Aspects of a Case Study

2011 ◽  
Vol 347-353 ◽  
pp. 1425-1430 ◽  
Author(s):  
Min Zhu ◽  
Fan Long Kong ◽  
Yue Li ◽  
Nan Wang ◽  
Min Xi ◽  
...  
Keyword(s):  
Energy Saving ◽  
Emission Reduction ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Environmental Benefits ◽  
Manufacturing Enterprise ◽  
Accurate Analysis ◽  
The Status ◽  
Original Production

In this paper, a detailed description of a project designed to recovery and utilize waste heat in a cotton manufacturing enterprise in Shandong, Jin Mao Textile Co., Ltd(China) is presented: both energy saving and emission reduction(ESER) aspects have been thoroughly considered. First of all, an accurate analysis of the status of the previous cotton mill for production process was developed, to identify possible improvement opportunities; then an energy saving reformation of waste heat recovery in cotton mill was proposed and designed. After that, by means of a comprehensive feasibility analysis, the ESER indices were calculated assuring good environmental benefits of the plant modification investment. The modifications to the system make it possible to achieve consistent annual savings of coal, electricity and waste heat, CO2, SO2 emissions through effective recovery and utilization of the waste heat that was discharged into the atmosphere in the original production. Implementation of the reformation system fulfilled the waste heat recovery and utilization. And also create good environmental benefits.

scholarly journals Performance Comparison of Advanced Transcritical Power Cycles with High-Temperature Working Fluids for the Engine Waste Heat Recovery

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5886
Author(s):  
Xinxing Lin ◽  
Chonghui Chen ◽  
Aofang Yu ◽  
Likun Yin ◽  
Wen Su
Keyword(s):  
High Temperature ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Performance Comparison ◽  
Design System ◽  
Working Fluids ◽  
Power Cycles ◽  
System Parameters ◽  
Pressure Cycle

To efficiently recover the waste heat of mobile engine, two advanced transcritical power cycles, namely split cycle and dual pressure cycle, are employed, based on the recuperative cycle. Performances of the two cycles are analyzed and compared through the development of thermodynamic models. Under given gas conditions, seven high-temperature working fluids, namely propane, butane, isobutane, pentane, isopentane, neopentane, and cyclopentane, are selected for the two cycles. At the design system parameters, the highest work 48.71 kW, is obtained by the split cycle with butane. For most of fluids, the split cycle has a higher work than the dual pressure cycle. Furthermore, with the increase of turbine inlet pressure, net work of the split cycle goes up firstly and then decreases, while the work of dual pressure cycle increases slowly. For the split cycle, there exists a split ratio to get the maximum network. However, for the dual pressure cycle, the larger the evaporation temperature, the higher the net work. On this basis, system parameters are optimized by genetic algorithm to maximize net work. The results indicate that the highest work 49.96 kW of split cycle is obtained by pentane. For the considered fluids, except cyclopentane, split cycle always has a higher work than dual pressure cycle. Due to the higher net work and fewer system components, split cycle is recommended for the engine waste heat recovery.

Experimental study on heat pipe thermoelectric generator for industrial high temperature waste heat recovery

2020 ◽  
Vol 175 ◽  
pp. 115299 ◽  
Author(s):  
Chenglong Wang ◽  
Simiao Tang ◽  
Xiao Liu ◽  
G.H. Su ◽  
Wenxi Tian ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Heat Pipe ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Thermoelectric Generator ◽  
Waste Heat

scholarly journals Experimental exergy and energy analysis of a novel high-temperature heat pump with scroll compressor for waste heat recovery

2019 ◽  
Vol 253 ◽  
pp. 113504 ◽  
Author(s):  
Carlos Mateu-Royo ◽  
Joaquín Navarro-Esbrí ◽  
Adrián Mota-Babiloni ◽  
Francisco Molés ◽  
Marta Amat-Albuixech
Keyword(s):  
High Temperature ◽  
Heat Pump ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Energy Analysis ◽  
Waste Heat ◽  
Scroll Compressor ◽  
Temperature Heat ◽  
High Temperature Heat Pump
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