Sunday, January 7, 2018

08/01/2018: Fit for fish farms - Adsorptech EcoGenTM

by Adsorptech

Sidebar Content One of the most crucial elements for achieving a successful RAS fish farm financing business case and operation is a cost effective and reliable oxygen supply

Adsorptech Principals have been designing and operating oxygen production equipment for decades. However in 2012 we barely knew how to spell “Aquaculture” let alone understand the farmers oxygen needs.

As the size of RAS systems increase, the need for onsite produced oxygen increases because the cost and availability of relatively large amounts of a liquid oxygen (LOX) alternative becomes RAS business case and reality prohibitive.

Listen first
As a designer of production equipment, it is crucially important to understand the needs of the end use customer – not just in the sense of economics but what else keeps them awake at night. At Jim Flaherty’s, Adsorptech President & CEO, first introduction to aquaculture at the Aquaculture America 2012 tradeshow in Las Vegas, Nevada, considerable time was spent listening to a plethora of technical presentations.
Ironically the best understanding came by a chance meeting at one evening’s cocktail hour. While munching on excellent shrimp (RAS farm raised I am sure) and drinking an excellent complementary red wine, two gentlemen joined Jim’s table – a RAS farm design engineer and an insurance agent dedicated to RAS coverages. After typical introductions and pleasantries, Jim asked the designer what was important about oxygen to a RAS complex.

The two major responses were 1) total operating cost and 2) reliability. Cost importance is a given. For RAS farms, power is a major operating cost, mostly related to pumping the water. Loss of oxygen results in fish mortality. The reliable supply issue led to the question at what point does mortality come into play. It was identified that down to 50 percent of maximum need, the fish will survive, but not grow. Below 50 percent mortality becomes a certainty. The insurance agent chipped in that if a 50 percent redundancy was available, he would be able to lower the RAS insurance premium costs.

Design second
Since Adsorptech was just then on the cusp of creating a new onsite oxygen production technology, the RAS needs were incorporated into the design philosophy. First and foremost, the product needed to achieve very low power consumption. Second, the product needed to achieve cost effective redundancy for 50 percent of the design capacity even during maintenance periods.

An innovative way was needed to achieve this 50 percent redundancy for a lower cost than supplying two half-sized units because as the unit sizes get smaller the unit capital costs get higher. In 2013 Adsorptech created and patented its EcoGenTM Oxygen VPSA Generator.

Everyone asks what does EcoGenTM stand for? Take your pick – Economic Generation or Ecological Generation – both apply.

Read the full article, HERE.

Visit the Adsorptech website, HERE.

The Aquaculturists
This blog is maintained by The Aquaculturists staff and is supported by the
magazine International Aquafeed which is published by
Perendale Publishers Ltd

For additional daily news from aquaculture around the world: aquaculture-news

No comments:

Post a Comment

See our data and privacy policy Click here