Month: November 2017

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Bank Earnings & Net Profit Sankey

This Sankey diagram can be considered a distribution diagram as it shows how net interest income and other operating income of Bank Muscat in 2011/2012 are split into operating expenses and net profit.

bank_muscat_sankey

(Source: Times of Oman Graphics)

Only at second sight I found out that this is actually a year-on-year comparison of the figures for H1/2011 and H1/2012. The light yellow flows are for the previous year, the dark orange flows for the other year, indicating an operating profit increase of 2.6 Mio Rials.

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Ammonia production technologies compared

A comparison of different Ammonia production technologies is made in a post on ‘Comparative studies of ammonia production, combining renewable hydrogen with Haber-Bosch’ by Trevor Brown on the Ammonia Industry blog.

It also features this these Sankey diagrams from an Italian research study by Fratelli et.al.

Frattini-et-al-ammonia-energy-fluxes

(published under CC BY 4.0)

All diagrams relate to the production of 1 kg of ammonia (NH3). The authors in their “research examined three cases for renewable hydrogen production, including biomass gasification (Case A), electrolysis of water using solar or wind power (Case B), and biogas reforming (Case C), and compared these sustainable hydrogen sources against the traditional steam methane reformation of natural gas (Case 0)”.

Blue flows represent electrical energy, red flows are heat energy, including the losses (off-heat). Green flows show chemical energy embodied in the product and the feedstock.

For the original study check Fratelli et al: A system approach in energy evaluation of different renewable energies sources integration in ammonia production plants. In: Renewable Energy, Volume 99, December 2016, Pages 472-482.