Design dossier

The MicroLink Pod

1.25 MW of liquid cooled compute, delivered as three modules to a working industrial site recovering heat.

The three pod modules on a host partner site
IT load1 251 kW
Rack positions9 at 139 kW
Provisioned to190 kW per position
Technology loop44 / 54 degC
Facility loop41 / 51 degC
Derived loop rise10.2 K
Loop flow1 664 l/min (440 gpm)
Liquid fraction86 percent
Distribution2 × 1 000 A busway
Rejection3 dry coolers, N plus one
A host partner industrial site taking the recovered heat
Collaborators on this design
Section one

Design Plans

Section two

Design Details

Images Drawing set images
Section three

Simulation

IT load
1 251kW
Loop flow
1 664l/min
Loop rise
10.2K
Tech loop
44degC
Approach
3K
Facility flow
1 970l/min
Flow per kW
1.33l/min
Rejection
1 291kW
Plant power
104kW
Electrical Pod row Rejection field Boundary 19 860 1 500 16 860 1 500 TX 001 5 600 G 001 5 700 8 000 3 000 1 500 01 POWER POD 00 IT POD 02 THERMAL POD 12 192 2 438 2 438 2 438 BESS 001 SU 001 ADB 001 DRY COOLER INTAKE CLEARANCE ENVELOPE KEEP PERMANENTLY CLEAR, NOTHING OVER IT DC 001 DC 002 DC 003 2 500 2 620 2 000 2 620 2 000 2 620 2 500 16 860 BM 001 HOST PARTNER FACILITY EXTENT BEYOND NOT SHOWN
SI 100
Facility loop warm, 51 degC Facility loop cool, 41 degC Heat recovery branch to the host partner Power Controls Drainage and site water Earth electrode ring Noise line at the host elevation

SI 100, site arrangement at a host partner facility. Object sizes and clearances are true. Band spacing and pod to pod spacing are opened for readout and are not to scale. Dimensions in millimetres.

Table 1What the current selection flags
CheckRuleWhat it comparesRequiredDeliveredMarginVerdict
C01R1One coolant unit against the technology loop flow1 6641 500minus 164Fail
C02R1Loop flow divided by nine, against what a rack asks for185.0184.9minus 0.1Fail
C03R2Supply temperature against the rack maximum inlet45441 KWarn
C04R1Exchanger flow against both coolant unit primaries1 6643 2001 536Pass
C05R1One duty pump against three dry coolers2 1002 000minus 100Fail
C06R3Nominal bore either side of the rack connectionDN50DN100stepWarn
CheckRuleWhat it comparesRequiredDeliveredMarginVerdict
C07R5Coolant unit capacity restated at the approach carried1 2512 000749Pass
C08R5Dry cooler capacity restated at the approach carried1 2911 980689Pass
C09R6Cooler field with one unit lost, N plus one1 2911 32029Warn
C10R6Coolant units with one lost, N plus one1 2511 000minus 251Fail
C11R7Loop flow per kW against the rating basis1.501.33minus 0.17Warn
C12R8Exchanger plate width against the door opening840800minus 40Fail

Five failures on a first pass, and four of them are worth having. C10 says two units at N plus one do not survive losing one, because a single 1 000 kW unit cannot carry 1 251 kW. C09 says the cooler field survives, but with 29 kW of margin. C12 says the 840 mm plate does not pass an 800 mm door, which is why it withdraws end on. C02 is a one litre rounding in the design figure itself. None of these needed a physics model to find.

Options Heat recovery flow options
Section four

Documentation

Parts Parts

Workroom

Section five
Plans
Aspects