A Service Contract Agreement to Assemble/Manufacture with Maintenance Service(s) in Malaysia – Circular Cavities with Quick Fixed Coupling Feature.
A Service Contract Agreement to Assemble/Manufacture with Maintenance Service(s) in Malaysia – Circular Cavities with Quick Fixed Coupling Feature.
- Environmental Quality Act, 1974 (Act 127)
National Oceanic and Atmospheric Administration NOAA Earth System Research Laboratories (ESRL)
By Gan Chun
Chet (Ir., PEPC)
P.Eng (MALAYSIA) MSc (UK) BEng (UK)
Date 29.06.2023
The Technical Requirements
1. Reduce diameter of the circular cavity (L) from 50mm to 40mm (as shown PVC- model) or 30mm (the real piece, possibly pending design division confirmation).
2. To increase the depth of the circular cavity, to be determine at detailed design stage, i.e. either shallow or deeper than the original depth of 89.25mm at peak frequency (880Hz for 50mm diameter, herein called the cavity diameter L).
This will allow optimum mix with air, which will reduce at a single point source, installed along a particular section of the pipeline. Mixing will reduce the flow temperature significantly (considerably) by a spray nozzle internally.
Allowing the spray point to center at a predicted spot will achieve an efficient state. This is achievable by varying in the depth of the circular annular, forming the cavity in shallow or greater depth D (until the static temperature is visible in the flow pipeline).
The design of the circular annular, must be over the pipeline limit, only to move the piston “in” or “out” within the circular annular limit.
The Setup Procedure
A. Establish
air flow at ambient temperature, by just allowing air to flow through the setup
(i.e. presumably without any reaction taking place – no spray injection into
the reaction chamber). Test, check then operate the circular cavity to locate
(a) amplification of signal (strength of oscillation), and (b) at specific peak
frequency (detected in the spectrum analyser, using pressure transducer). See
sketch on the “left side” of technical drawings section.
B. Inject
NaOH solution (concentrated liquid), through the circular cavity, into the
reaction chamber, beginning from certain level of CO2 concentration (probably
1000 ppm, industrial level – then reduce by ½ the concentration at approximate
500 ppm to locate a possible reduction trend line) down to ambient air (which
contain approximately 400 ppm at present, predictable).
i) Adjustable depth D : establishing a L/D ratio for optimal performance
(achieved in part A without spray, only ambient air)
ii) Peak amplification, i.e. differing CO2 concentration at intake (from future
industrial level, as specify in section B, to ambient air ppm concentration)
iii) Best possible “performance” to be located (only take note of the CO2 level
after the cyclone separator, not to reduce too much that human are not able to
contain in the environment. A suitable air quality instrument should be
deployed to protect the inhabitant in the vicinity (near or far and away).
iv) The objective is
to improve the performance or the mixture (high concentration of NHCO3 or
Na2CO3 in the mixture) to a safe limit.
The Yearly Calibration (quarterly results)
Carbon cycle must be measured
quarterly, in uptrend (low or high “gradient”) mode currently (see NOAA Global
Monitoring Laboratory Atmospheric CO2 at Moana Loa Laboratory). In either of
these scenarios, adjustments have to be performed for optimum reaction at the
chamber, varying the depth and also nearer or away from the flush/top surface,
herein called the tolerance +/- within.
Note that there will be solution
mixture after the reaction chamber (or fixed adjustable circular cavity that
requires proper service maintenance. The flow speed is reduced after the
diffuser section. Collect chemical mixture from the cyclone separator for
analysis. Proper air quality monitoring system to be installed for safety
cut-off feature. Special note for the opportunities that is given to adhere to strict rules and regulation (noise and ppm levels)
The Reaction
Equation
CO2 + NaOH -> NaHCO3
(Carbon Dioxide) (Sodium Hydroxide) (Sodium Bicarbonate)
CO2 + 2NaOH -> Na2CO3 + H20
(Carbon Dioxide) (Sodium Hydroxide) (Sodium Carbonate)
HNO3 + NaOH -> NaNO3
(Nitric
Acid) (Sodium Hydroxide) (Sodium Nitrate)
Electrolysis
of NaNO3 Sodium Nitrate
(Endothermic
Process, Energy is Absorbed by the Products, thus cooler)
(Positive Enthalpy +ΔH)
Anode: 2NO3- -> O2 + 2H2O + 4e- {Oxygen Gas}
Cathode: 4H2O
+ 4e- -> 2H2
+ 2OH- {Hydrogen
Gas}
Sabatier Process
Current Findings: -
ü Requires 300 to 400 degree Celsius to form methane from hydrogen H2 and carbon dioxide CO2
ü Requires 30 bar pressure
ü Aluminium Oxide as an efficient
catalyst
CO2 + 4H2 -> CH4 + 2H2O
(Carbon Dioxide) (Hydrogen) (Methane) (Water)
Confidential Site Performance Permit - for Safe Work Operations (every Quarterly)
Project Name: Spray Injection Application into Supersonic Airflow .....………………………………………………….....................................
Rank: Ir. / Ts. / Mr. / Mrs. / Ms
………………………….......................................................................................
Area: …………………………….....................................................................................
Name of Job Performer : ...........................................……………………………………
NRIC/Passport No.: .........................................…………………………………………..
Contact No.: ……………………………………..............................................................
I/We hereby
wish to apply and obtain the approval to Work in the above project name and
enclosed the details as required.
1…As stated
in the Contract Agreement to Assemble/Manufacture with Maintenance Service(s)
in Malaysia – Circular Cavities with Fixed and Adjustable Feature.
2…Propose
Work Permit Period, to commence from ……………………………………………………….
And expected
to be completed by ……………………………………………………………………………………
3…Supporting
documents, <to be attached>
*I) Sodium Hydroxide NaOH ‘caustic soda’ pH 10
Liquid
Mixture Analysis (high concentration of sodium carbonate ‘soda ash’
pH
10 to 11 or sodium bicarbonate ‘baking soda’ pH 8.5)
**II) Dry Air Quality Analysis (ppm level, approximately
above pre-industrial level)
* I)… for analysis of the solution and result(s) **II)… for safety of the inhabitant
For Approval
by relevant authorities related to the above work (e.g Department of
Environment, Department for Occupational Safety and Health)
Notes:
1. 1. Documents attach
herein consists of 1) The Technical Requirements, 2) The Setup Procedure, and
3) The Yearly Calibration (quarterly results);
2. 2. The Job Performer
Details, such as Certification of Compliance and/or Conformance with
Clarifications;
3. 3. Scope of Work involves gaining best possible supplier(s) and/or service agents to achieve the desired result(s);
4. 4. The rights to
retrofit/modification/maintenance (herein called the service(s) maintenance
contract to Assemble/Manufacture with Maintenance Service(s) in Malaysia.
Name:
NRIC No.:
Title : Ir. / Ts. / Mr. / Mrs./ Ms.
Registration No.:
Comments
Post a Comment