Hydrogen-FC

The worldwide demand for hydrogen (H2) is ~50 million tons per year and growing rapidly. Hydrogen is used primarily for production of ammonia for fertilizer and conversion of heavy crude oils into cleaner liquid fuels. The international cooperation has effort to deliver H2 as a replacement fuel for transport vehicles. The future, we would like use hydrogen as fuel for transport vehicles than gasoline/diesel oil/natural gas as fuel. Continue Reading »

I am in the KAMASE team, Gadjah Mada University - Indonesia and students from Curtin University of Technology - Australia successful become 30 nominates of Mondialogo Engineering Award 2007 - an international engineer students contest which initiated by Daimler and UNESCO. On the Mondialogo Engineering Award (MEA) 2007 there are about 3200 engineer students come from 89 countrys that join into 879 international teams. Team should be compose by engineer students from developed and developing country and effectively conduct an intercultural dialogue. Continue Reading »

I am with 3 students from Engineering Physics Department, Gadjah Mada University has successful build a steam turbine for small scale (450 W). This research supported by fund from National High Education Department (DIKTI), Indonesia. Fund about Rp. 4.700.000 or US$ 500 given us by PKMT (Program Kreativitas Mahasiswa Teknik - Creativity Programme for Engineer Students) programme. Continue Reading »

Not Emitted Damaged Emission (Zero Emission)

A fuel cell system just only emitted water vapour when used pure hydrogen as fuel. Otherwise, when using hydrogen from hydrocarbon reforming (like: coal, natural gas, etc), we still need conduct the emission testing to determine a system have zero emission category. According to standard that released by United Technologies Corporation (UTC) on 2002, a fuel cell system categorized as zero emission technology when just emitted smallest air pollutants, and bellow showing the parameter:

NOx ≤ 1 ppm

SO2 ≤ 1 ppm

CO2 ≤ 2 ppm

The table show the air pollution which emitted by some type of fuel cells. Note: PEM (Polymer Electrolyte Membrane), PAFC (Posporic Acid Fuel Cell), SOFC (Solid Oxide Fuel Cell), MCFC (Molten Carbonate Fuel Cell). Continue Reading »

Barier on Hydrogen Fuel

Hydrogen difficult to be produced and saved in storage media. Nowdays, hydrogen production methods are very expensive dan need a lot of energy (which mean: hydrogen production has less efficiency ). To overcome this barier, many industries used hydrocarbon reforming technology to produce hydrogen from hydrocarbon. This way choose just on transition era, before we reach hydrogen era where hydrogen can take from efficient water electrolysis methods. Continue Reading »

Flammability range of gas could be defined in term of its lower flammability limit (LFL) and upper flammability limit (UFL). The LFL of a gas is the lower gas concentration that still support a self-propagating flame when mixed with air and ignited. Below the LFL, there is not enough fuel to support the combustion reaction. The UFL of a gas is the upper gas concentration that still support a self-propagating flame when mixed with air and ignited. Above the UFL, there is not enough oxygen to support the combustion reaction. Continue Reading »

Fuel cells are electro-chemical device that convert chemical energy on hydrogen into DC electrical energy. Its mainly different with battery, battery consume DC electric energy with long times when charging and generate DC electric energy when discharging. Battery just device to storing electric energy with limitation capability. Fuel cells just need hydrogen gas which flow to electrode to generate DC electric energy. Its similar with internal combustion engine that need fossil fuel to generate mechanical energy then moving the generator to produce the electric energy. The different with internal combustion engine is fuel cells not release carbon-dioxide emission, just water vapour. Fuel cells with hydrogen fuel very environmental-friendly. Continue Reading »