Following the first and second laws of thermodynamics, this procedure results in a severe energy loss. The first law of thermodynamics says that the energy output from any process can't exceed the energy input, and the second law focusing in part on decay states that each process decays energy.
The production of the methanol from natural gas results in an initial 32% to 44% net energy loss, then the steam treatment process to procure the hydrogen results in a further 35% energy loss.
Several processes are being explored to derive hydrogen from water, as an inexhaustible source. However, this reaction, 2H2O + e = 2H2(g) + O2(g), requires a substantial energy investment per unit of water (286kJ per mole).
This energy investment is again required by both the first and second laws of thermodynamics and renders the electrolysis of water unprofitable in terms of energy return based on the energy invested.
Any effective hydrogen economy would require an infrastructure that could use zero-carbon power to electrolyze water into hydrogen, convey this highly diffuse gas long distances, and pump it at high pressure into a car or into our large fuel cells in our homes. Next, the hydrogen would have to be converted back into electricity to drive an electric motor or electric utilities. The cumulative process of electrolysis, transportation, pumping and fuel-cell conversion would render only 20...
This presents challenges because neither high-pressure compressed hydrogen gas nor cryogenic liquefied hydrogen can easily be handled at home." (Panasonic, p. 1) This underscores the reality noted by this proposal and cast to further examination in the research justified by this proposal that any real implementation of an energy source transformation would be a considerable commercial, political, economic and practical endeavor. All of that noted, it still remains that case that
People seeking to make a fundamental change in the way they transport themselves will likely need a great deal of information, some of which may provide greater clarity while others may provide confusion and resort in them seeking out another alternative product. The consumer may then look for information that will support their inquiry into a commitment to a Hydrogen Fuel Cell Vehicle as opposed to one of many
Fuel Cells in Green Engineering The energy tomorrow is beginning to be available today. Fuel cells, which just a very few years ago were a pipe dream, are becoming g a reality, and they are used in areas ranging from space exploration to toy motivation (Joy). The promise of the fuel cell can be seen in the fact that they use the most abundant source of energy on the planet, Hydrogen
Industrial Hygiene Being that it is an operation that is being conducted in an industrial area, and in an industry that dealt with compressed gas, it is critical that all the safety measures are taken into account in a categorical and safe manner in the bid to re-enter the after the terrible hurricane. For instance there are various experts who are present and I would recommend that their individual expertise be
Childhood Obesity Growing Where some oppose the idea of childhood obesity being a disease, there is still a growing epidemic where children's weight exceed the normal weight per height and age and increasing health concerns that must be addressed with a commitment to appropriate action plans to reduce and eliminate childhood obesity. From 1971-74 to 2009-10 childhood obesity increased from 4% to 18% in ages 6-11 and from 6.1% to 18.4% for
The former might be, 'What specific...' [while] Less structure might be exemplified by: "Please respond to the following in your own words: I....'" (Dereshiwsky, 1999) in addition: adding some open-ended items such as these to a more traditionally scaled quantifiable survey, such as one with Likert-scaled attitudinal items, and/or "check/off" questions on demographic background variables, is a good way to make the survey "multimethod" in nature. This is because you'd
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