Essays about: "ammonia"

Showing result 11 - 15 of 214 essays containing the word ammonia.

  1. 11. TRACKING WASTEWATER EMISSIONS IN RIVERS ENTERING GULF OF BOTHNIA COAST

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Helen Mkandawire; [2023]
    Keywords : Nutrients inputs; wastewater; coastal waters; Gulf of Bothnia; wastewater emissions; nutrient transportation; marine water; nutrient loading; eutrophication.;

    Abstract : The Gulf of Bothnia consists of two sub-basins in the northern Baltic Sea: the Bothnian Sea (salinity 4-5‰) and Bothnian Bay (salinity 2-3‰). Changing nutrient concentrations and signs of eutrophication has recently been observed in the Gulf of Bothnia. READ MORE

  3. 12. Membrane-less porous walls electrolyzer for electrochemical ammonia synthesis

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Francesco Gelain; [2023]
    Keywords : electrochemical ammonia synthesis EAS ; nitrate reduction; green ammonia; energy storage; hydrogen carrier.; elektrokemisk ammoniaksyntes; nitratreduktion; ammoniak; grön ammoniak; energilagring; vätgasbärare.;

    Abstract : n a world of unsustainable growth and increasingly catastrophic climate events, the quest for sustainability is open. Electrochemical ammonia synthesis (EAS) represents an eco-friendly means for green ammonia production. READ MORE

  4. 13. Decarbonisation of service vessels in offshore wind power through power-to-X self-sufficiency

    University essay from Lunds universitet/Miljö- och energisystem

    Author : Clemens Kellander; Ludvig Fredriksson; [2023]
    Keywords : Alternative fuels; compressed hydrogen; battery; production; energy storage; operation and maintenance; O M; offshore; wind power; service vessel; crew transfer vessel; CTV; service operations vessel; SOV; decarbonisation; global warming potential; life cycle; Technology and Engineering;

    Abstract : This report examines the possibilities of decarbonising operation & maintenance vessels for a prospective floating offshore wind power park at the Utsira Nord site in Norway, through self-sufficient energy carrier production utilizing power-to-X-solutions. Possible alternative fuels are identified as compressed hydrogen, batteries, liquid hydrogen, ammonia, methanol, and biofuels, out of which the former two are the subject for thorough investigation in this report. READ MORE

  5. 14. Comparative Analysis of Modern Energy Systems for Ice Rinks

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Pendar Hemati; [2023]
    Keywords : Ice rinks; refrigeration; heat recovery; CO2; ammonia; propane; Pistas de hielo; refrigeración; recuperación de calor; CO2; amoníaco; propano;

    Abstract : Ice rinks are highly energy-intensive commercial buildings with an average annual energy consumption of 1,000 MWh, most of it being used to cover the simultaneous heating and cooling demands. The aim of this thesis is to find the most energy efficient energy system for ice rinks by evaluating different system modifications and refrigerants. READ MORE

  6. 15. Production of polymers from a papermills wastewater using HTC substrate. : Investigating the viability of using wastewater sludge from Skoghalls’ papermill in combination with filtrate from HTC of sewage sludge to produce biological plastic producing polymers.

    University essay from Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Author : Regan George; [2023]
    Keywords : PHA; HTC-substrate; Polymer;

    Abstract : Since their conception, plastics have been a dominant product due to the versatility of use, and readily available raw materials. However, the production and consumption of synthetic plastics have continued to increase over the years, leading to a significant rise in plastic waste and its associated environmental impacts, such as the detrimental effects plastic waste has on ecosystems, including the presence of toxic microplastics and risks to marine life, are becoming the focus of criticism. READ MORE