Friday, May 3, 2019

Technical report on hydrogen experiment Assignment Essay

Technical report on enthalpy experiment Assignment - Essay Examplefigures jut 1 education of the electrolyzer module 6 manikin 2 Filling the syringe with distilled piss 7 turn 3 Placing inner containers 7 Figure 4 Connecting thermionic valves 8 Figure 5 Using fuel cells and solar panel 8 Figure 6 Inserting batteries 10 Figure 7 Assembling electrical fans 10 Figure 8 Connecting the move to reversible fuel cell 11 Figure 9 Using solar panel 11 Introduction Hydrogen derived from renewable sources such as wind and solar is clean, self-sufficient and a fixed energy solution for sustainable development. A kilogram of hydrogen is roughly equivalent to a gallon of gasoline in energy content. (Johanna L, 2007) This makes hydrogen a technology of the future in reducing doctrine on imported fuel and greenhouse gas emissions. Hydrogen could be produced from fossil fuels using steam clean reforming, which emits CO2 and expensive ways such as catalytic cracking without CO2 emissions. Th is pathway is more(prenominal) cost-effective. Water electrolysis is an efficient and expensive way because of its high up electricity requirement. For instance, a study (Khan M.J., Iqbal M.T., 2005) stated that take for granted an electricity cost of $0.05/kwh, nearly nowadays price of wind produced electricity hydrogen made from water electrolysis costs more than $2.84/kg based on higher heating value. Hydrogen produced from photovoltaic is likewise expensive because of high PV electricity cost.( Sherif S.A. et al, 2005) Wind produced electricity, on the another(prenominal) hand, is becoming more competitive nowadays. Therefore, it scum bag produce less expensive hydrogen. Electrolysis The general principle in electrolysis is that water is supplied to an electrochemical cell, and hydrogen evolves at the anode plot of land oxygen evolves at the cathode when the supplied energy is greater than the zero current cell potential. Alkaline electrolysis is commercially available te chnology. It takes place at a temperature around 800C and pressure of 1-30bar.( US department of energy, 2010) render cells Fuel cells are electrochemical devices that convert chemical energy in fuel to electrical energy with high efficiency and low environmental impact. Because combustion is avoided, they produce power with minimum pollution. They contain electrodes anode and cathode separated by an electrolyte. Fuels such as hydrogen or hydrogen rich synthesis gas, are supplied to the anodes while the oxidiser is fed to the cathodes. The most common oxidant is oxygen from air. Electrochemical reaction occurs in the electrolyte producing current while deriving external load.( Fuel cell Handbook, 2010) Materials and Methods Preparation of the Electrolyzer Module and Solar Powered Hydrogen doing 1. Insert the reversible fuel cell, terminals on top, into the slot on the base. Cut 2 x 4cm continuance pieces of rubber tube and insert a black pin into the end of one tube. Place the t ube with the black pin into the top pin on the hydrogen side (with black terminal). Place the other tube firmly onto the top input nozzle on the oxygen side. Figure 1 preparation of the electrolyzer module 2. Fill

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.