Capdiamont\’s Weblog


The beneficial uses of ammonia, or the the other side of Eureka Ice story
Tuesday 9 Sep 2008, 10:02
Filed under: Eureka, Humboldt, Renewable Energy

While others are quick to assign blame and to point out the toxicity of the ammonia to Humboldt Bay Harbor commissioner Hunter. Lets be clear, he hasn’t had anything to do with Eureka ICE until after his father’s death. Now he has a backlog of maintenance to do. In my few times of being there, I haven’t seen commissioner Hunter there. What about the workers? What will become of them in our rush to be more environmentally crazy? What about all the ice that is manufactured there? Where will that come from? On one hand Heraldo and his ike want everything to be produced local, yet are happy to stab him in the back, and now all this ice will have to be trucked in. What about the diesel emission increases due to the weight of importing all this ice?

Of course you have the snide remarks of Mike and how this could be related to a green port.

Quotes are from wikipedia.

Refrigeration – R717

Ammonia’s thermodynamic properties made it one of the refrigerants commonly used prior to the discovery of dichlorodifluoromethane.[20] Ammonia’s toxicity complicates this application. Anhydrous ammonia is widely used in industrial refrigeration applications because of its high energy efficiency and low cost. Ammonia is used less frequently in commercial applications, such as in grocery store freezer cases and refrigerated displays due to its toxicity.

So we have a win for greenness, “high energy efficiency”

For remediation of gaseous emissions

Ammonia used to scrub SO2 from the burning of fossil fuels, the resulting product is converted to ammonium sulfate for use as fertilizer. Ammonia neutralizes the nitrogen oxides (NOx) pollutants emitted by diesel engines. This technology, called SCR (selective catalytic reduction), relies on a vanadia-based catalyst.[21]

ah, remember we can use it to scrub dirty diesel vehicles such as the one Pete of Humboldt Baykeeper uses.

As a fuel

Ammonia was used during World War II fuel shortages to power buses in Belgium and used in engine and solar energy applications prior to 1900. Liquid ammonia was used as the fuel of the rocket airplane, the X-15. Although not as powerful as other fuels, it left no soot in the reusable rocket engine and its density approximately matches that for the oxidizer, liquid oxygen, which simplified the aircraft’s design. Ammonia is proposed as a practical and clean alternative to fossil fuel for internal combustion engines[22] (the combustion products are nitrogen and water). In 1981 a Canadian company converted a 1981 Chevrolet Impala to operate using ammonia as fuel.[23][24] The use of ammonia as fuel continues to be discussed.[25]

The calorific value of ammonia is 22.5 MJ/kg (9690 BTU/lb) which is about half that of diesel. In a normal engine, in which the water vapour is not condensed, the calorific value of ammonia will be about 21% less than this figure.

Ah, see we can use ammonia as a fuel! The only byproducts are nitrogen, and water.

Ah yes, lets consider solar refrigeration. Yes you too can build your own solar powered refrigerator/ice maker.solar-icemaker-article-350kbytes I love Home Power Mag!

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