New System Recovers Fresh Water From Power Plants

A new system devised by MIT engineers may give a low-priced supply of drink for parched cities round the world whereas conjointly cutting power station operative prices.

About thirty-nine p.c of all the water withdrawn from rivers, lakes, and reservoirs within the U.S. is earmarked for the cooling wants of electrical power plants that use fossil fuels or atomic energy, and far of that water winds up floating away in clouds of vapor. however the new MIT system may doubtless save a considerable fraction of that lost water — and will even become a major supply of unpolluted, safe drink for coastal cities wherever brine is employed to cool down native power plants. [1]

Multi-Objective Particle Swarm optimal sizing of a renewable hybrid power plant with storage

This paper options a Multi-Objective Particle Swarm optimisation for an influence plant integrated in a very small grid. The plant modeling is versatile and might be got wind of for a large vary of sources, storages and masses. The model contains twelve parameters representing the dimensions of every part that ar sculptural with power dependent efficiencies. The optimisation goals ar to scale back the annualized price of system and also the foreign energy while not failing to produce the load. [2]

Utilization of coal fly ash and bottom ash as solid sorbents for sulfur dioxide reduction from coal fired power plant: Life cycle assessment and applications

Feasibility of gas (SO2) reduction from a coal dismissed power station exploitation ash and bottom ash as solid sorbents is evaluated. The study integrates inventory knowledge from experiments, method simulation, revealed studies, and real plant operation for comprehensive life cycle assessment (LCA). The experimental results exhibit the potential of free lime contained ash and bottom ash to react with SO2 beneath the smallest amount economical conditions. The scenario-based LCA results show that fly ash/bottom ash utilization will lower the SO2 load of untreated flue gas by three.7–4.7% before Associate in Nursing existing wet rock flue gas desulfurization (WFGD) system. The combined desulfurization method with SO2 reduction saves the annual energy consumption by four.0–5.0%, the environmental impacts by three.0–5.0%, and also the annual disbursement by three.1–4.5%, compared to the prevailing WFGD method. [3]

Real-time optimization of a solar-natural gas hybrid power plant to enhance solar power utilization

A dynamic model of a natural gas/solar hybrid system was developed victimization heat integration and good flow management. gas was used as a supplemental fuel, that increased the dependableness of the system and raised the ability block cycle potency through the employment of upper temperatures. during this work, the action of the 2 energy sources (solar and natural gas) was exploited with period optimisation (RTO). A quadratic programming-based optimizer was accustomed send heat to the steam generator or to boiler feedwater pre-heating because the optimizer dictates. throughout low star conditions, the RTO directs the star heat to the lower temperature sink (the boiler feedwater preheater) to form higher use of the star heat. [4]

Coal-fired Power Plants and Their Impact on Ecosystems Health

Coal-fired power plants emit greenhouse gases (GHG) that cause warming. Coal, being one in all the foremost vital fuel, emits 3 times the maximum amount GHG as gas. The combustion of coal (fossil fuels at large) discharge completely different types of chemical substances that have an effect on ecosystems and human health. a number of the foremost vital by-products embrace gas oxides, Sulfur oxides, dioxide, ash and Mercury. varied studies have confirmed that ash contains high levels of carcinogens inflicting additional incidences of cancer, albeit knowledge on ecosystems health is scanty and small is known. The Author designed a greenhouse study to research the consequences of coal by-products on the health of immediate ecosystems by growing tomatoes in potted soils collected from 2 coal-fired power plants. the primary web site (Chalk purpose generating station), is found in patrician George’s County (MD) whereas the second (Brandon Shore generating Station) is found in Anne Arundel County close to phytologist Bay (MD). [5]

Reference

[1] New System Recovers Fresh Water From Power Plants

(web link)

[2] Multi-Objective Particle Swarm optimal sizing of a renewable hybrid power plant with storage

Duchaud JL, Notton G, Darras C, Voyant C. Multi-Objective Particle Swarm optimal sizing of a renewable hybrid power plant with storage. Renewable Energy. 2018 Aug 21. (web link)

[3] Utilization of coal fly ash and bottom ash as solid sorbents for sulfur dioxide reduction from coal fired power plant: Life cycle assessment and applications

Rathnayake M, Julnipitawong P, Tangtermsirikul S, Toochinda P. Utilization of coal fly ash and bottom ash as solid sorbents for sulfur dioxide reduction from coal fired power plant: Life cycle assessment and applications. Journal of Cleaner Production. 2018 Aug 22. (web link)

[4] Real-time optimization of a solar-natural gas hybrid power plant to enhance solar power utilization

Rashid K, Sheha MN, Powell KM. Real-time optimization of a solar-natural gas hybrid power plant to enhance solar power utilization. In2018 Annual American Control Conference (ACC) 2018 Jun 27 (pp. 3002-3007). IEEE. (web link)

[5] Coal-fired Power Plants and Their Impact on Ecosystems Health

Mintesinot Jiru1*

1Department of Natural Sciences, Coppin State University, 2500 W. North Avenue, Baltimore, MD, 21216, USA. (web link)

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