scholarly journals Analysis of waste heat utilization of ship main engine

2020 ◽  
Vol 165 ◽  
pp. 06027
Author(s):  
Jin Zhemin ◽  
Yang Yuxin
Keyword(s):  
Power Generation ◽  
Steam Turbine ◽  
Wave Energy ◽  
Electricity Generation ◽  
Waste Heat ◽  
Wave Power ◽  
Heat Utilization ◽  
Waste Heat Utilization ◽  
Reduce Emissions ◽  
Main Engine

In order to protect the environment, save energy and reduce emissions, and promote the utilization of wave energy, this paper reviews the development history of application generation technology, summarizes its development from two aspects of optimization and application of wave energy conversion devices, analyses the application examples of wave energy generation devices on ships. This paper summarizes the application trend of wave power generation devices on ships: wave power generation should be used as auxiliary and domestic electricity for ships and wave energy should be combined with other new energy sources. Wave energy application in marine power generation can effectively reduce emissions from ships, which is conducive to the sustainable development of human society. The system mainly included low speed marine main diesel engine, waste heat boiler, electricity generation sub-system of power turbine, electricity generation sub-system of steam turbine, the heat exchange equipment, electricity generation sub-system of organic working medium steam turbine and other equipments. Based on experimental data of main engine and later theoretical calculation, this paper studied the effect rules of electricity generation power, waste heat utilization potential and related parameters of the waste heat utilization system under different main diesel load and ambient temperature.

scholarly journals Research On Wave Energy Generation Technology

2020 ◽  
Vol 165 ◽  
pp. 01021
Author(s):  
Yang Yuxin ◽  
Jin Zhemin
Keyword(s):  
Power Generation ◽  
Wave Energy ◽  
Energy Generation ◽  
Wave Power ◽  
Human Society ◽  
Marine Energy ◽  
Reduce Emissions ◽  
Save Energy ◽  
Generation Technology ◽  
Wave Power Generation

With the increasingly serious environmental pollution and the intensified energy war, the all-round development and utilization of marine energy will become an indispensable key link in China’s implementation of the maritime power strategy. In recent years, with the support of the state, China’s wave energy generation technology has made a key breakthrough.In order to protect the environment, save energy and reduce emissions, and promote the utilization of wave energy, this paper reviews the development history of application generation technology, summarizes its development from two aspects of optimization and application of wave energy conversion devices, and analyses the application examples of wave energy generation devices on ships. This paper summarizes the application trend of wave power generation devices on ships: wave power generation should be used as auxiliary and domestic electricity for ships and wave energy should be combined with other new energy sources. Wave energy application in marine power generation can effectively reduce emissions from ships, which is conducive to the sustainable development of human society.

scholarly journals Analytical Study of Tri-generation System Integrated with Thermal Management Using HT-PEMFC Stack

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3145 ◽  
Author(s):  
Kang ◽  
Shin
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Thermal Management ◽  
Waste Heat ◽  
Management Model ◽  
Heat Utilization ◽  
Thermal Management System ◽  
Absorption Cooling ◽  
Waste Heat Utilization ◽  
Generative System

Recently, extensive studies on power generation using clean energy have been conducted to reduce air pollution and global warming. In particular, as existing internal combustion engines lose favor to power generation through hydrogen fuel cells, the development of tri-generation technology using efficient and reliable fuel cells is gaining importance. This study proposes a tri-generation thermal management model that enables thermal control and waste heat utilization control of a high-temperature PEMFC stack that simultaneously satisfies combined cooling, heating, and power (CCHP) load. As the high-temperature PEMFC stack operates at 150 °C or more, a tri-generative system using such a stack requires a thermal management system that can maintain the operating temperature of the stack and utilize the stack waste heat. Thus, to apply the waste heat produced through the stack to heating (hot water) and absorption cooling, proper distribution control of the thermal management fluid (cooling fluid) of the stack is essential. For the thermal management fluid control design, system analysis modeling was performed to selectively design the heat exchange amount of each part utilizing the stack waste heat. In addition, a thermal management system based on thermal storage was constructed for complementary waste heat utilization and active stack cooling control. Through a coupled analysis of the stack thermal management model and the absorption cooling system model, this study compared changes in system performance by cooling cycle operation conditions. This study investigated into the appropriate operating conditions for cooling operation in a tri-generative system using a high-temperature PEMFC stack.

A Livestock Model for Waste Heat Utilization Assessment

1989 ◽  
Vol 19 (3) ◽  
pp. 211-229 ◽  
Author(s):  
Robert N. Amundsen ◽  
John D. Keenan
Keyword(s):  
Waste Heat ◽  
Heat Utilization ◽  
Waste Heat Utilization
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