7 Questions 8 Answers 0 Followers
Questions related from Javad Hikmati
The geometrical surface of the included electrode is 0.45cm² but the active or the real surface of an electrode often differs from the geometrical one. The current efficiency based on the...
18 May 2020 5,629 5 View
PH of distilled water was shown by a PH meter to be around 7. After adding 10wt.% of sodium sulfate the PH decreased to around 5.5PH. The electrolyte then subjected to the electrolysis and the PH...
09 March 2020 2,711 15 View
I am running an electrolyzer which produces hydrogen gas and measured in milli liter. In order to find the efficiency, HHV must be known as J/ml. There are values in textbooks given in 39KWh/kg,...
04 March 2020 7,290 4 View
Measured the PH of distilled water and was around 6.5-7. After dissolving sodium sulfate the PH decreased to 5.5. Increasing the temperature of that solution didn't affect much the PH value. The...
18 February 2020 2,933 3 View
Trying to calculate the energy efficiency of an electrolyses by using the formula: eff= HHV* hydrogen volume in ml / ( UIt). where U is voltage, I current, t is time and HHV is the higher heating...
14 January 2020 2,255 3 View
I am doing some experiments on hydrogen production by water electrolysis and trying to calculate the efficiency both in terms of systems efficiency and energy efficiency using the equations...
09 January 2020 4,765 6 View
I want to make a nano fluid of carbon black ( 0,1 grams) in distilled water (200ml). As carbon black is hydrophobic, there is the need of right amount of surfactant such as SDS. The SDS amount...
02 October 2019 3,937 7 View
