Performance evaluation and optimization of humidification–dehumidification desalination system for low-grade waste heat energy applications

Desalination ◽  
2022 ◽  
Vol 526 ◽  
pp. 115516
Author(s):  
Ravichandran Santosh ◽  
Chan Ho Yoo ◽  
Young-Deuk Kim
Keyword(s):  
Performance Evaluation ◽  
Waste Heat ◽  
Heat Energy ◽  
Low Grade ◽  
Energy Applications

A desalination method utilising low-grade waste heat energy

2014 ◽  
Vol 56 (8) ◽  
pp. 2037-2045 ◽  
Author(s):  
G. Venkatesan ◽  
S. Iniyan ◽  
Purnima Jalihal
Keyword(s):  
Waste Heat ◽  
Heat Energy ◽  
Low Grade

Efficiency and optimal performance evaluation of organic Rankine cycle for low grade waste heat power generation

Energy ◽  
2013 ◽  
Vol 50 ◽  
pp. 343-352 ◽  
Author(s):  
Dongxiang Wang ◽  
Xiang Ling ◽  
Hao Peng ◽  
Lin Liu ◽  
LanLan Tao
Keyword(s):  
Power Generation ◽  
Performance Evaluation ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Optimal Performance ◽  
Low Grade ◽  
Heat Power

Development of sorption thermal battery for low-grade waste heat recovery and combined cold and heat energy storage

Energy ◽  
2016 ◽  
Vol 107 ◽  
pp. 347-359 ◽  
Author(s):  
T.X. Li ◽  
J.X. Xu ◽  
T. Yan ◽  
R.Z. Wang
Keyword(s):  
Energy Storage ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Heat Energy ◽  
Low Grade ◽  
Thermal Battery

Thermodynamical Performance Analysis of Cold Storage Using Waste Heat Energy

2018 ◽  
Vol 2 (9) ◽  
pp. 24-30
Author(s):  
Saimanichandra Vasala ◽  
◽  
Santosh Kumar Panda ◽  
Keyword(s):  
Performance Analysis ◽  
Cold Storage ◽  
Waste Heat ◽  
Heat Energy

Sludge Disposal from an Island Community

1992 ◽  
Vol 25 (12) ◽  
pp. 33-47 ◽  
Author(s):  
T. S. C. Gross ◽  
R. R. Cohen
Keyword(s):  
Agricultural Land ◽  
Waste Heat ◽  
Treatment Plant ◽  
Small Island ◽  
Low Grade ◽  
Sludge Disposal ◽  
Disposal Option ◽  
Total Process ◽  
Island Community ◽  
Farm Produce

The small island of Jersey is served by a single wastewater treatment plant at Bellozanne. Since its inception some 30 years ago the sludge produced has been used on agricultural land. Inevitably there are circumstances which prevent this happening without interruption, eg, poor weather, or seasonal demand. On these occasions, the island has no other disposal option to fall back on. Furthermore, concerns over the practice have created a perception that it might be doing harm to the ‘quality' of the farm produce. The responsible body, the Public Services Department, formulated a flexible, multiple option solution and commissioned Halcrow to engineer the capital works. The works centre around a thermal drying plant using biogas produced by the digestion process as the main fuel. Waste heat is recovered for digester heating making the total process potentially self sufficient in energy. At the same time, the bulk of the product is reduced considerably, providing an easily transported material with potential for use directly on the land as a fertilizer substitute or as a low grade fuel. Farfrom being a disposal problem requiring manpower and expense, sludge will soon be regarded by the States of Jersey as a valuable resource with a revenue potential.

scholarly journals Efficient and affordable thermomagnetic materials for harvesting low grade waste heat

APL Materials ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 011105
Author(s):  
Daniel Dzekan ◽  
Anja Waske ◽  
Kornelius Nielsch ◽  
Sebastian Fähler
Keyword(s):  
Waste Heat ◽  
Low Grade

scholarly journals Rolling membrane powered by low-temperature steam as a new approach to generate mechanical energy

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Chongshan Yin ◽  
Qicheng Liu ◽  
Qing Liu
Keyword(s):  
Water Vapor ◽  
Low Temperature ◽  
Combustion Engine ◽  
Mechanical Energy ◽  
Heat Energy ◽  
Steam Engine ◽  
Low Grade ◽  
Human Society ◽  
New Approach ◽  
Low Grade Heat

Abstract How to convert heat energy into other forms of usable energy more efficiently is always crucial for our human society. In traditional heat engines, such as the steam engine and the internal combustion engine, high-grade heat energy can be easily converted into mechanical energy, while a large amount of low-grade heat energy is usually wasted owing to its disadvantage in the temperature level. In this work, for the first time, the generation of mechanical energy from both high- and low-temperature steam is implemented by a hydrophilic polymer membrane. When exposed to water vapor with a temperature ranging from 50 to 100 °C, the membrane repeats rolling from one side to another. In nature, this continuously rolling of membrane is powered by the steam, like a miniaturized “steam engine”. The differential concentration of water vapor (steam) on the two sides of the membrane generates the asymmetric swelling, the curve, and the rolling of the membrane. In particular, results suggest that this membrane based “steam engine” can be powered by the steam with a relatively very low temperature of 50 °C, which indicates a new approach to make use of both the high- and low-temperature heat energy.

A novel compressed air energy storage (CAES) system combined with pre-cooler and using low grade waste heat as heat source

Energy ◽  
2017 ◽  
Vol 131 ◽  
pp. 259-266 ◽  
Author(s):  
Long-Xiang Chen ◽  
Peng Hu ◽  
Chun-Chen Sheng ◽  
Mei-Na Xie
Keyword(s):  
Energy Storage ◽  
Heat Source ◽  
Waste Heat ◽  
Compressed Air ◽  
Low Grade ◽  
Compressed Air Energy Storage

Analysis of Surface Waste Heat Recovery in IC Engine by Using TEG

2015 ◽  
Vol 787 ◽  
pp. 782-786 ◽  
Author(s):  
R. Prakash ◽  
D. Christopher ◽  
K. Kumarrathinam
Keyword(s):  
Waste Heat ◽  
Electrical Power ◽  
Electrical Energy ◽  
Surface Heat ◽  
Heat Energy ◽  
Ic Engine ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point ◽  
Heat Energy Recovery

The prime objective of this paper is to present the details of a thermoelectric waste heat energy recovery system for automobiles, more specifically, the surface heat available in the silencer. The key is to directly convert the surface heat energy from automotive waste heat to electrical energy using a thermoelectric generator, which is then regulated by a DC–DC Cuk converter to charge a battery using maximum power point tracking. Hence, the electrical power stored in the battery can be maximized. Also the other face of the TEG will remain cold. Hence the skin burn out accidents can be avoided. The experimental results demonstrate that the proposed system can work well under different working conditions, and is promising for automotive industry.

Powertrain Waste Heat Recovery: A Systems Approach to Maximize Drivetrain Efficiency

2012 ◽  
Author(s):  
Kevin Laboe ◽  
Marcello Canova
Keyword(s):  
Fuel Consumption ◽  
Waste Heat Recovery ◽  
Systems Approach ◽  
Waste Heat ◽  
Combustion Engine ◽  
Heat Energy ◽  
Engine Oils ◽  
Engine Cooling ◽  
Light Duty ◽  
Light Duty Vehicles

Up to 65% of the energy produced in an internal combustion engine is dissipated to the engine cooling circuit and exhaust gases [1]. Therefore, recovering a portion of this heat energy is a highly effective solution to improve engine and drivetrain efficiency and to reduce CO2 emissions, with existing vehicle and powertrain technologies [2,3]. This paper details a practical approach to the utilization of powertrain waste heat for light vehicle engines to reduce fuel consumption. The “Systems Approach” as described in this paper recovers useful energy from what would otherwise be heat energy wasted into the environment, and effectively distributes this energy to the transmission and engine oils thus reducing the oil viscosities. The focus is on how to effectively distribute the available powertrain heat energy to optimize drivetrain efficiency for light duty vehicles, minimizing fuel consumption during various drive cycles. To accomplish this, it is necessary to identify the available powertrain heat energy during any drive cycle and cold start conditions, and to distribute this energy in such a way to maximize the overall efficiency of the drivetrain.

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