scholarly journals Design of Rankine Steam Cycle and Performance Evaluation of HT Boiler for Engine Waste Heat Recovery

2012 ◽  
Vol 20 (2) ◽  
pp. 21-29
Author(s):  
Hyung-Seok Heo ◽  
Suk-Jung Bae ◽  
Dong-Hyuk Lee ◽  
Heon-Kyun Lee ◽  
Tae-Jin Kim
Keyword(s):  
Performance Evaluation ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
And Performance ◽  
Steam Cycle

Performance Characteristics of a Rankine Steam Cycle and Boiler for Engine Waste Heat Recovery

2011 ◽  
Author(s):  
Sukjung Bae ◽  
Hyungseok Heo ◽  
Heonkyun Lee ◽  
Donghyuk Lee ◽  
Taejin Kim ◽  
...  
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Performance Characteristics ◽  
Steam Cycle

Performance evaluation and experiment system for waste heat recovery of diesel engine

Energy ◽  
2013 ◽  
Vol 55 ◽  
pp. 226-235 ◽  
Author(s):  
Gao Wenzhi ◽  
Zhai Junmeng ◽  
Li Guanghua ◽  
Bian Qiang ◽  
Feng Liming
Keyword(s):  
Performance Evaluation ◽  
Diesel Engine ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Experiment System

Thermal Design and Performance Optimization of the ORC System for the Waste Heat Recovery in Refining Petroleum Industry

2014 ◽  
Author(s):  
Yan Li ◽  
Jian Song ◽  
Chunwei Gu
Keyword(s):  
Power Output ◽  
Performance Optimization ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Thermal Design ◽  
Working Fluid ◽  
Heat Sources ◽  
Recovery System ◽  
And Performance

As the increase of the energy consumption and the deterioration of environment, a carbon tax will be imposed in China to reduce carbon emissions strictly and the industrial waste heat recovery has been getting more attention. The Organic Rankine Cycle (ORC) system has been proven to be a promising solution for the utilization of the low-grade heat sources. There are five waste heat sources from a 1.2 million ton reforming and extraction unit in Shijiazhuang Refining & Chemical Company of China. The temperatures of the waste heat sources are 98∼80°C, 104∼80°C, 147∼80°C, 205∼80°C and 205∼80°C, and the heat loads are 6.5MW, 11.5MW, 8.6MW, 3.8MW and 2.2MW, respectively. This paper studies the thermal design and performance optimization of a comprehensive utilization system for these waste heat sources, using ORC technology. The selection of suitable organic fluid is studied and the working parameters are designed and optimized with the application of the first law and the second law of thermodynamics. When the ORC systems are designed separately for the recovery of five waste heat sources, and the total power output is 3338.89kW with different organic working fluids. However this kind of designs leads to a very complex recovery system which needs large investment and space occupation. To reduce the overall system complexity, a single ORC system is proposed to recover all five heat sources, and the total amount of output power will only be 2813.02kW, due to the large exergy loss. With the above results shown, and for the purpose of simple system with large power output, this paper further studies the dual ORC systems heat recovery plan, with R245fa as the top cycle working fluid and R141b as the bottom cycle working fluid. The total amount of power output to 3353.27kW. The dual systems with single working fluid heat recovery plan is also studied, and with R141b as the working fluid for both the top cycle and the bottom cycle, the total amount of power output is 3325.03kW, and the heat recovery system is simple and compact, with good economical benefit.

scholarly journals Transient performance evaluation of waste heat recovery rankine cycle based system for heavy duty trucks

2016 ◽  
Vol 165 ◽  
pp. 878-892 ◽  
Author(s):  
Vincent Grelet ◽  
Thomas Reiche ◽  
Vincent Lemort ◽  
Madiha Nadri ◽  
Pascal Dufour
Keyword(s):  
Performance Evaluation ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Rankine Cycle ◽  
Transient Performance ◽  
Heavy Duty

scholarly journals Design Optimization and Performance Analysis of a Multi-kW Thermoacoustic Electric Generator Using DeltaEC Model

2021 ◽  
pp. 1-19
Author(s):  
Srinath Somu ◽  
Deanna A. Lacoste ◽  
Saumitra Saxena ◽  
William Roberts ◽  
Robert M. Keolian
Keyword(s):  
Heat Source ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Power Plants ◽  
Waste Heat ◽  
Research Work ◽  
Acoustic Power ◽  
Optimized Design ◽  
Electric Generator ◽  
And Performance

Abstract Waste heat recovery from power plants and industries requires a new type of electricity generator and related technological developments. The current research work is aimed at the design of a multi-kilowatt thermoacoustic electric generator, which can be employed as the bottoming cycle of a gas-turbine power plant or for industrial waste heat recovery. The proposed device converts thermal energy into acoustic power and subsequently uses a piezoelectric alternator to convert acoustic power into electricity. The challenge in designing such a device is that it has to be acoustically balanced. The performance of the device is greatly affected by numerous parameters such as frequency of the traveling acoustic wave, heat exchanger parameters, regenerator dimensions, acoustic feedback loop, etc. The proposed device is a lab-scale demonstration targeted to produce few kilowatts of electric power from a 20 kWth heat source. DeltaEC software is used to achieve the acoustically balanced configuration of the device. The DeltaEC model outcomes are used to arrive at the optimized design of the device and its components. The analytical method, the optimized geometrical dimensions of thermoacoustic components, and the minimum required conditions of heat source input are presented in this paper.

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