scholarly journals Hybrid Pressure Retarded Osmosis–Membrane Distillation System for Power Generation from Low-Grade Heat: Thermodynamic Analysis and Energy Efficiency

2014 ◽  
Vol 48 (9) ◽  
pp. 5306-5313 ◽  
Author(s):  
Shihong Lin ◽  
Ngai Yin Yip ◽  
Tzahi Y. Cath ◽  
Chinedum O. Osuji ◽  
Menachem Elimelech
Keyword(s):  
Power Generation ◽  
Energy Efficiency ◽  
Thermodynamic Analysis ◽  
Membrane Distillation ◽  
Low Grade ◽  
Pressure Retarded Osmosis ◽  
Distillation System ◽  
Low Grade Heat

scholarly journals A thermodynamic platform for evaluating the energy efficiency of combined power generation and desalination plants

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Kim Choon Ng ◽  
Muhammad Burhan ◽  
Qian Chen ◽  
Doskhan Ybyraiykul ◽  
Faheem Hassan Akhtar ◽  
...  
Keyword(s):  
Power Generation ◽  
Energy Efficiency ◽  
Power Plants ◽  
Flame Temperature ◽  
Primary Energy ◽  
Low Grade ◽  
Heat Engines ◽  
Desalination Plants ◽  
Low Grade Heat ◽  
Thermal Sources

AbstractIn seawater desalination, the energy efficiency of practical processes is expressed in kWh_electricity or low-grade-heat per m3 of water produced, omitting the embedded energy quality underlying their generation processes. To avoid thermodynamic misconceptions, it is important to recognize both quality and quantity of energy consumed. An unmerited quantitative apportionment can result in inferior deployment of desalination methods. This article clarifies misapprehensions regarding seeming parity between electricity and thermal sources that are sequentially cogenerated in power plants. These processes are represented by heat engines to yield the respective maximum (Carnot) work potentials. Equivalent work from these engines are normalized individually to give a corresponding standard primary energy (QSPE), defined via a common energy platform between the adiabatic flame temperature of fuel and the surroundings. Using the QSPE platform, the energy efficiency of 60 desalination plants of assorted types, available from literature, are compared retrospectively and with respect to Thermodynamic Limit.

Low grade heat recovery for power generation through electrochemical route: Vanadium Redox Flow Battery, a case study

2019 ◽  
Vol 474 ◽  
pp. 262-268 ◽  
Author(s):  
Deepa Elizabeth Eapen ◽  
Suman R. Choudhury ◽  
Raghunathan Rengaswamy
Keyword(s):  
Power Generation ◽  
Heat Recovery ◽  
Vanadium Redox Flow Battery ◽  
Low Grade ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Low Grade Heat ◽  
Vanadium Redox

Thermodynamic analysis and multi-objective optimization of a novel power/cooling cogeneration system for low-grade heat sources

2018 ◽  
Vol 166 ◽  
pp. 64-73 ◽  
Author(s):  
Jiqiang Yin ◽  
Zeting Yu ◽  
Chenghui Zhang ◽  
Minli Tian ◽  
Jitian Han
Keyword(s):  
Thermodynamic Analysis ◽  
Low Grade ◽  
Heat Sources ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Cogeneration System ◽  
Low Grade Heat

Power Generation from Low-Grade Heat Streams

2017 ◽  
pp. 1-15
Author(s):  
Lucien Yehuda Bronicki
Keyword(s):  
Power Generation ◽  
Low Grade ◽  
Low Grade Heat

scholarly journals Using adsorption chillers for utilising waste heat from power plants

2019 ◽  
Vol 23 (Suppl. 4) ◽  
pp. 1143-1151 ◽  
Author(s):  
Karol Sztekler ◽  
Wojciech Kalawa ◽  
Sebastian Stefanski ◽  
Jaroslaw Krzywanski ◽  
Karolina Grabowska ◽  
...  
Keyword(s):  
Power Generation ◽  
Energy Efficiency ◽  
Power Plant ◽  
Power Plants ◽  
Waste Heat ◽  
Primary Energy ◽  
Simulation Software ◽  
Coefficient Of Performance ◽  
Low Grade ◽  
Adsorption Chiller

At present, energy efficiency is a very important issue and it is power generation facilities, among others, that have to confront this challenge. The simultaneous production of electricity, heat and cooling, the so-called trigeneration, allows for substantial savings in the chemical energy of fuels. More efficient use of the primary energy contained in fuels translates into tangible earnings for power plants while reductions in the amounts of fuel burned, and of non-renewable resources in particular, certainly have a favorable impact on the natural environment. The main aim of the paper was to investigate the contribution of the use of adsorption chillers to improve the energy efficiency of a conventional power plant through the utilization of combined heat and power waste heat, involving the use of adsorption chillers. An adsorption chiller is an item of industrial equipment that is driven by low grade heat and intended to produce chilled water and desalinated water. Nowadays, adsorption chillers exhibit a low coefficient of performance. This type of plant is designed to increase the efficiency of the primary energy use. This objective as well as the conservation of non-renewable energy resources is becoming an increasingly important aspect of the operation of power generation facilities. As part of their project, the authors have modelled the cycle of a conventional heat power plant integrated with an adsorption chiller-based plant. Multi-variant simulation calculations were performed using IPSEpro simulation software.

scholarly journals Small Scale Power Generation using Low Grade Heat from Solar Pond

2012 ◽  
Vol 49 ◽  
pp. 50-56 ◽  
Author(s):  
Baljit Singh ◽  
J. Gomes ◽  
Lippong Tan ◽  
Abhijit Date ◽  
A. Akbarzadeh
Keyword(s):  
Power Generation ◽  
Small Scale ◽  
Low Grade ◽  
Solar Pond ◽  
Low Grade Heat

scholarly journals An optimised chemisorption cycle for power generation using low grade heat

2017 ◽  
Vol 186 ◽  
pp. 251-261 ◽  
Author(s):  
Huashan Bao ◽  
Zhiwei Ma ◽  
Anthony Paul Roskilly
Keyword(s):  
Power Generation ◽  
Low Grade ◽  
Low Grade Heat

Energy Efficiency and Performance Limiting Effects in Thermo-Osmotic Energy Conversion from Low-Grade Heat

2017 ◽  
Vol 51 (21) ◽  
pp. 12925-12937 ◽  
Author(s):  
Anthony P. Straub ◽  
Menachem Elimelech
Keyword(s):  
Energy Efficiency ◽  
Energy Conversion ◽  
Low Grade ◽  
And Performance ◽  
Low Grade Heat
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