Modular construction of Fired Heaters can help in saving both time and cost. This presentation touches the topic from the Indian perspective and how it can also be helpful in revamps.
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15. Suitable for
Heater Size Heater Complexity
Ease of
Transportation
Complete Heater in
all respects
Small - Mid Low - Moderate
In modules All All
In sub-modules Mid - Large All
In panels and
banjos
Large - Very Large High
Extent of modularisation
16. Suitable for
Heater Size Heater Complexity
Ease of
Transportation
Complete Heater in
all respects
Small - Mid Low - Moderate
In modules All All
In sub-modules Mid - Large All
In panels and
banjos
Large - Very Large High
Most
favourable
for India
Extent of modularisation
18. Extent of modularisation
Transportation, handling and erection eďŹorts
Incremental reduction in site activities
EďŹorts
Amount of modularisation/ Module size
{Ideal in most situations
19. Extent of modularisation
Transportation, handling and erection eďŹorts
Incremental reduction in site activities
EďŹorts
Impractical without
port access
Amount of modularisation/ Module size
{Ideal in most situations
20. Export
Scenario Sub-modules can
be combined at or
near port.
Complete heater
(with all coils, piping,
instrumentation,
etc.) can be loaded
onto barge
21. Module - arization
Fabricate and ship
from shop in transportable modules
assemble
near site
or at port
move
complete heater
to siteplace on
foundation
using
jacks, crane,
axels, âŚ
23. Design considerations
â Module size and weights
â Steel to Steel interface
â Refractory to refractory interface
â Splice design
â Site sealing
â Lifting lugs, spreader beams, erection plans
â Structural stiffening
â Stability during transportation by road/ sea
â Wind loads
24. Refractory
Insulating Castable Ceramic Fibre
Products
Insulating Bricks
â Suitable for
Modularisation
â Good Strength
â May need dry-out
â Interface is easy
â Suitable for
Modularisation
â Low strength - Needs
care during
transportation
â Does not need dry-out
â Interface is easy
â Not recommended
â May remain loose even
with ďŹxing systems or
tongue and groove
â DifďŹcult interface
25. Cost
From the internet >>
Credit is due to whoever wrote that
â may not be a true
measure of effort
involved
â not always = value
â means different things
to different people,
societies and
geographies
â depends on a
multitude of factors
37. Safety and
Environment
â Reduced site duration = Reduced chances of un-safe
operations
â Shop environment = Better control over safety
â Reduced Wastage
â Less energy load at site during construction (Resource
efďŹcient)
52. CONSTRUCTIVE SOLUTIONS
Critical Success Factors
â Experienced and proven team
â Detailed understanding of the parameters
and their impact on the project
â Freezing of the requirements
â Single point responsibility