Search results for "environment engine"
showing 10 items of 11 documents
Electrooxidation of coconut oil in alkaline electrolyte
2017
Providing more and more energy is an essential task of the today’s energetic industry. In the last few years, in addition to the traditional methods of energy production, alternative energy sources have been developing fast. One of the devices that can make use of these sources is a fuel cell. The fuel cells can be a power source of future mainly due to their high efficiency, low influence on environment and the possibility of powering with different fuels. Most often, fuel cells are powered by hydrogen. However, the problems with its cheap production and storage are the reason for the search for alternative fuels for fuel cells. It is important that the new fuel will be characterized by ze…
Possibility of Wastewater Treatment Using MFC with Ni-Co Catalyst of Fuel Electrode
2016
Abstract One of the problems with microbial fuel cells is a low current density of those energy sources. Nonetheless, it is possible to increase the current density by using the catalyst for fuel electrode (anode) - as long as a low cost catalyst can be found. The possibility of wastewater treatment using the Ni-Co alloy as catalyst for MFC’s is presented in this paper. The alloys were obtained with different concentrations of Co (15 and 50% of Co). The increase of current density with Ni-Co catalyst is approximately 0,1 mA/cm2. So, a fundamental possibility wastewater treatment using the Ni-Co alloy as catalyst for microbial fuel cells was presented.
MICROBIAL FUEL CELL WITH Cu-B CATHODE POWERING WITH WASTEWATER FROM YEAST PRODUCTION
2017
With the increasing standard of living, energy consumption increases as well. So, waste production, including wastewater, increases as well. One of the types of waste-water is wastewater from yeast industry. Wastewater from this industry has not only a high pollutants load but it is produced in great amounts as well. Technical devices that can accomplish the wastewater treatment and electricity production from wastewater is a microbial fuel cell. In microbial fuel cells activated sludge bacteria can be used for electricity production during wastewater treatment. The possibility of using the Cu-B alloy as cathode catalyst for microbial fuel cells to wastewater treatment of wastewater from ye…
Electrooxidation of methyl alcohol with Ni-Co catalyst
2018
Due to development of the renewable energy sources, the powering of fuel cells (FCs) with bio-fuels is very important. The one of this fuel is methyl alcohol. The use of fuel cells on a large scale is mainly limited by the high cost of catalysts – mainly platinum. Elimination of Pt as catalyst would allow for wider commercial application of FCs. The paper presents a study of methyl alcohol electrooxidation on electrode with NiCo alloy catalyst. Researches were done by the method of polarizing curves of electrooxidation of methanol in glass vessel. Conducted measurements show that there is a possibility of electrooxidation of methanol with Ni-Co catalyst. In any case, the process of electroo…
Canola oil electooxitadion on smooth platinum electrode
2018
As fuel for fuel cells can be used various substances, but mainly fuel cells are powered by clear hydrogen (or hydrogen obtained from organic substances by reforming process). However, problems with the storage of hydrogen are the reason for the search of new fuels for fuel cells. Due to development of the renewable energy sources, the powering of fuel cells with bio-fuels is very important. Vegetable oil is an alternative fuel for diesel engines and for heating oil burners. Powering high efficiency power sources like fuel cells with renewable fuels (like canola oil) will allow de-velopment of renewable energy sources and elimination or reduce of toxic substances emissions. The paper presen…
Methanol electrooxidation with Cu-B catalyst
2016
In the last few years alternative energy sources have been fast developing. One of these sources is fuel cell. Due to development of the renewable energy sources, the powering of fuel cells with bio-fuels is very important. The one of this fuel is methanol. The use of fuel cells on a large scale is mainly limited by the high cost of catalysts - mainly platinum. Elimination of Pt as catalyst would allow for wider commercial application of fuel cells. The paper presents a study of methanol electrooxidation on electrode with Cu-B alloy catalyst. Researches were done by the method of polarizing curves of electrooxidation of methanol in glass vessel. An aqueous solution of KOH was used as the el…
Possibility of using NiCo2O4 alloy as catalyst for fuel electrode of hydrazine fuel cell
2017
Szerokie stosowanie ogniw paliwowych ograniczone jest głównie wykorzystywaniem drogich katalizatorów. Wyeliminowanie platyny umożliwiłoby szeroką komercjalizację tych ogniw. Artykuł przedstawia analizę elektroutleniania hydrazyny na katalizatorze NiCo2O4. Jako elektrolit wykorzystano wodny roztwór KOH. Pomiarów dokonano potencjostatem. Wykazano możliwość elektroutleniania hydrazyny na katalizatorze NiCo2O4. W każdym przypadku (dla wszystkich stężeń hydrazyny i udziałów Co) proces elektroutleniania zachodził. Gęstość prądu wynosiła 15–35 mA/cm2 dla wszystkich koncentracji hydrazyny i elektrolitu. Gęstość prądu jest niewielka, jednak koszt uzyskania katalizatora jest znacznie niższy od kosztó…
Wykorzystanie ogniw paliwowych jako elementu zrównoważonego rozwoju
2018
W ostatnich latach coraz szybciej rozwijają się technologie wykorzystujące alternatywne źródła energii. Jedną z nich jest technologia ogniw paliwowych. Ogniwo paliwowe przekształca paliwo chemiczne w sposób bezpośredni (z pominięciem procesu spalania) w energię elektryczną. Ponadto charakteryzuje się wysoką sprawnością. Sprawność ogniw paliwowych jest dwukrotnie wyższa od sprawności silników cieplnych. Ponadto ogniwa paliwowe mogą być zasilane biopaliwami. Szybki rozwój wykorzystania ogniw paliwowych na dużą skalę może przyczynić się do obniżenia zużycia paliwa, a także emisji dwutlenku węgla,tlenków azotu i innych. W pracy przedstawiono analizę bezpośredniej produkcji energii elektrycznej …
Electricity production from waste engine oil from agricultural machinery
2017
As fuel for fuel cells can be used various substances, but generally fuel cells are powered by hydrogen. However, problems with the storage of hydrogen are the reason for the search of new fuels for fuel cells. Moreover, annually are produced huge amount of waste oils. These oils must be directed to purification and processing. It would be important to use waste engine oil as fuel for fuel cell to direct electricity production without intermediate stage e.g. combustion. The paper presents the possibility of using waste engine oil as fuel for fuel cell. The oil does not have the feature of electrical conductivity, for this reason a detergent was used for dissolving oil in an electrolyte. So,…
Possibility of Wastewater Treatment Using MFC with Ni-Co Catalyst of Fuel Electrode
2016
Jednym z ograniczeń w zastosowaniu mikrobiologicznych ogniw paliwowych jest niska gęstość prądu. Istnieje jednak możliwość podwyższenia tej wartości wykorzystując innego rodzaju katalizator elektrody paliwowej. Praca przedstawia możliwość oczyszczania ścieków za pomocą mikrobiologicznego ogniwa paliwowego z wykorzystaniem stopu Ni-Co jako katalizatora elektrody paliwowej. Do badań wykorzystano stopy Ni-Co o różnej koncentracji kobaltu (15 i 50%). Wykorzystując analizowany katalizator uzyskano wzrost gęstości prądu rzędu 0,1 mA/cm2. Wykazano, więc możliwość wykorzystania stopu Ni-Co jako katalizatora mikrobiologicznego ogniwa paliwowego