Tuesday, March 1, 2011

MAIN ENGINE AND AUX ENGINE , LINER BORE POLISHING , ON CHEMICAL TANKERS -- CAPT AJIT VADAKAYIL



Here is a true email sent from ship to office ashore.


Glean from it and be safe--




-----Original Message-----
From: XXX - MASTER [mailto:XXX.com]
Sent: Monday, April 07, XXX 3:12 AM
Subject: ME LINER / FRIENDLY SULPHURIC ACID AGGRESSION

dear XXX,

i do hope the XXX bunkers lab report comes in fast.

the brazilians have failed to give us the sulphur content of the HO bunkered-- as is required by the rules.
i must remind you what happened 5 years back to MT. XXX— with XXX on board--

we had embarked very very low sulphur fuel at s america -- the mecyl with high BN did fantastic damage-- coupled with fitter type engineering responses--

---you will still remember the ruckus my email ( after reading the engine log book ) titled-- "difference between fitters and engineers"  which caused all  suptd engineers at office to go into a deep sulk--

today everybody knows what i reacted like that-- for those days the low sulphur  lubrication theory was new to all--

the 2nd engr XXXX -- saw the liner whose oil adhering honed groovy surface was lacquered up smooth (with CaSO4 up due to LACK of friendly H2SO4  corrosion) and mindlessly increased the mecyl handle from 60 to 90 and logged it down -  

--( IT SHOULD HAVE BEEN REDUCED FROM 40 TO EVEN LESS ) this caused further loss of honing of graphite rough structure and oil film break down--

--with all compounded scuffing problems-- finally resulting in ships arrest at  XXXX ( the notorious XXXX turbocharger XXX fitter case ) -

it took MT. XXX 3 years to recover from that SINGLE mindless act--

I BELIEVE THAT VERY LOW SULPHUR DOES MORE DAMAGE THAN HIGH SULPHUR-- you don't have to be a marine engineer to make such a comment-- or you don't  have to be a hen to judge an omelette--

--and as you all know i do not jump into the worldwide TBN bandwagon--  i rather believe in reducing mecyl feed rate

sulphuric acid keeps the liner grooves washed down as sharp pores to hold the thin mecyl film for optimum consumption --

sulphuric acid has good effects and bad effects--like an aspirin has  good effects and bad effects-- wisdom is in striking the balance-- 

coca cola puts phosphoric acid in coke -- for one thing it keeps your teeth  clean, does more good than wriggleys chewing gum to reduce MO on a blind date--

let me look into the crystal glass-

i see cheap scrubbers on all ships -- to get rid of the SOx-- rather than use of low sulphur fuels which cause loss of calorific value among other things or reducing ships speed -- 

--the only correct way to calculate power for ME is by the fuel rack calorific method--

note : MO is mouth odour-- in cultures which do NOT have arranged marriages,  MO is taboo--

brgds
capt ajit vadakayil
MASTER /XXXX

"elegant solutions always"
..
 #################################

From:  XXX - Master
Date: Sat, 6 Feb XXX 23:27 +0000 Msg: A05948-108463
Subject: XXX /  EXCESSIVE AECC CONSUMPTION

gentlemen,

i must put an end to this NONSENSE --

AE4 has been consuming a extremely HIGH 80 litres of AECC, for at least 2 years . I am sure you maintain LO trends, in office.

all 4 past chief engineers have been recording a tolerable 35 litres in logbooks as well as their HO reports--which you have in office .  

remaining 3 nos AE LO consumptions are ok.

( why fudge the truth?  why are we pretending to sleep ? we need to solve a vexing problem !!) -

all chief engineers have inherited this AE 4– and taken over from where previous chengrs  left off .

I HAVE REPORTED TWICE THAT WE USE AECC OF TBN 30  (MOBIL GUARD 330 ) -- FOR SULPHUR CONTENT 1.9 %.

B&W has officially stated in their circulars that they do NOT want AECC of > TBN 15 if HO fuel sulphur content is < 2.5%.

then why are we using such high TBN 30 AECC for <1.5% sulphur fuel ?

there is no need for a genius to report that BORE POLISHING has happened to our AE4 liners.

AECC consumptions are ALWAYS excessive for AE if--

1) the honing of liners disappear because of bore polish. excessive alkakinity gone unneutralised by sulphurous acid -- means KEECHAD –muck--in the honing grooves ( bore polish )

2) 15 deg cut scraper rings are worn out.

on many ships i have seen chief engineers put scraper rings  upside down , though it is marked UP/ DOWN on it.  

quite often they put the wrong NON-SHARP spring loaded scraper ring  which is meant for the SECOND from bottom end of piston 

we have honing brush, but NO honing oil.--


thanks and best regards

capt ajit vadakayil
master
mt.XXX

" re-inventing team dynamics-- where freedom of human spirit is a pre-requisite for leadership "





CAPT AJIT VADAKAYIL
..

2 comments:

  1. Capt.Ajit

    I think I met you in Sunshine, Louisiana on Fairchem Colt on Aug 14,2010. I accidently came across your blog,I realy enjoyed reading them you reasonings seems convincing... a bit far fetched at times though... but really an interesting read. I will try to finish the remaing blogs in few weeks time... in the mean time keep blogging...

    Regards
    Capt.Krishnan
    New Orleans.

    ReplyDelete
  2. yes-- it is I!

    We had shortage of Styrene Monomer -- and the first foot manifold sample was suspect, at Carville.

    i know you went back to india on the same day due to a personal emergency

    happy reading Kris!

    capt ajit vadakayil
    ..

    ReplyDelete