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Negombo

 

Our penultimate stop of the trip - prior to Colombo Airport - was Negombo.

On a more secular level, on our way back to the coast, we stopped at this place for lunch at the café. It was hosting a wedding planning exhibition and in its own way was fascinating - as was the bizarrely incompetent management of the café. Like an episode of 'Fawlty Towers'.

 

Sri Lanka 42

Since we had descended from the highlands, rice had again replaced tea as the predominant crop. It's the staple and almost entirely for domestic consumption. These days it's mechanically harvested and bagged, replacing several steps of back breaking manual labour.

Other important crops include rubber, coconuts, palm oil, bananas, and pineapples, as well as a variety of other fruit and vegetables.

 

Sri Lanka 43

 

Here we had a visit to the fish markets; walked with goats; and relaxed at the Goldi Sands Hotel (resort).

Time to go home.

 

 

 

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Travel

Brazil

 

 

In October 2011 our little group: Sonia, Craig, Wendy and Richard visited Brazil. We entered Brazil from Argentina near the Iguassu Falls.

Read more: Brazil

Fiction, Recollections & News

Australia's Hydrogen Economy

 

 

  

As anyone who has followed my website knows, I'm not a fan of using 'Green Hydrogen' (created by the electrolysis of water - using electricity) to generate electricity. 

I've nothing against hydrogen. It's the most abundant element in the universe. And I'm very fond of water (hydrogen oxide or more pedantically: dihydrogen monoxide). It's just that there is seldom a sensible justification for wasting most of one's electrical energy by converting it to hydrogen and then back to electricity again. 

I've made the argument against the electrolysis (green) route several times since launching this website fifteen years ago; largely to deaf ears.

The exception made in the main article (linked below) is where a generator has a periodic large unusable surpluses in an environment unsuitable for batteries. In the past various solutions have been attempted like heat storage in molten salt. But where there is a plentiful fresh water supply, producing hydrogen for later electricity generation is another option.  Also see: How does electricity work? - Approaches to Electricity Storage

Two of these conditions apply in South Australia that frequently has excess electricity (see the proportion of non-hydro renewables chart below). The State Government, with unspecified encouragement from the Prime Minister and the Commonwealth, has offered A$593m to a private consortium to build a 200MW, 100t hydrogen storage at Whyalla.  Yet, the State already has some very large batteries, with which this facility is unlikely to be able to compete commercially.  Time will tell.

Read more: Australia's Hydrogen Economy

Opinions and Philosophy

The Chimera of Clean Coal

The Chimera - also known as carbon capture and storage (CCS) or Carbon Sequestration

 

 


Carbon Sequestration Source: Wikimedia Commons

 

Whenever the prospect of increased carbon consumption is debated someone is sure to hold out the imminent availability of Clean Coal Technology; always just a few years away. 

I have discussed this at length in the article Carbon Sequestration (Carbon Capture and Storage) on this website. 

In that detailed analysis I dismissed CCS as a realistic solution to reducing carbon dioxide emissions for the following reasons:

Read more: The Chimera of Clean Coal

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