Immersion Cooling Systems: Engineering and Operation
أنظمة التبريد بالغمر: الهندسة والتشغيل
- Next date
- 11–15 January 2027Doha
- Fees from
- £2,950per delegate
- Formats
- Classroom · Online4 sessions
- Duration
- 5 daysCertificate
Overview
Immersion cooling places servers directly in a dielectric fluid that absorbs heat from every component, removing the need for server fans and most of the air handling inside the data hall. Single-phase systems circulate a hydrocarbon or synthetic fluid through tanks and heat exchangers, while two-phase systems use a low-boiling fluid that evaporates at the chip and condenses above the bath. Both approaches promise very high densities and low energy use, but they introduce new engineering questions about fluids, materials, floor loading, serviceability, safety and long-term operation that conventional designs never had to answer.
This course provides an engineering view of immersion cooling from concept to daily operation. Participants learn the physics of single-phase and two-phase immersion, the properties of dielectric fluids, and how tanks, pumps, heat exchangers and condensers are sized and arranged. The course covers facility integration with water loops and heat rejection, structural and layout requirements, materials compatibility, fluid management, fire and environmental considerations, and the regulatory context for engineered fluids. It also addresses hardware preparation, maintenance procedures, operator safety, monitoring, and the practical trade-offs between immersion and direct-to-chip liquid cooling.
Objectives
- Explain the operating principles of single-phase and two-phase immersion cooling
- Compare dielectric fluids by thermal, electrical, safety and environmental properties
- Size immersion tanks, pumps, heat exchangers and condensers for a target load
- Integrate immersion systems with facility water loops and heat rejection plant
- Plan layouts, floor loading, access and service clearances for immersion halls
- Develop maintenance, fluid management and safety procedures for daily operation
Who should attend
Mechanical and facilities engineers, data center designers, operations engineers and technical leads evaluating immersion cooling.
Training methodology
The course combines technical explanation with sizing exercises, layout reviews and structured comparisons of real immersion deployments. Participants calculate heat transfer and flow requirements for single-phase tanks, estimate vapor management needs for two-phase systems, and assess floor loading and space planning for an immersion hall. Fluid data sheets are reviewed to compare properties and risks. Operational sessions walk through hardware insertion, removal and fluid handling step by step. A final team exercise compares immersion with direct-to-chip cooling for a defined AI project.
Programme outline
Day1Principles of Immersion Cooling
- Why immersion cooling is attracting attention for AI and high-density computing
- Single-phase immersion: natural and forced convection in a dielectric fluid bath
- Two-phase immersion: boiling at the chip and condensation above the fluid surface
- Heat transfer coefficients compared with air and direct-to-chip liquid cooling
- Server design changes for immersion, including fan removal and component selection
- Typical densities, efficiency claims and how to evaluate vendor performance data
- Exercise: estimating heat removal capacity for a single-phase immersion tank
Day2Dielectric Fluids and Materials
- Hydrocarbon, synthetic and engineered fluids used in commercial immersion cooling systems
- Key properties: viscosity, specific heat, dielectric strength and boiling point
- Flash point, flammability and fire safety considerations for immersion fluids
- Environmental and regulatory issues now affecting some engineered two-phase fluids
- Materials compatibility for cables, seals, labels, thermal pastes and plastics
- Fluid aging, contamination, filtration and testing over the system lifetime
- Exercise: comparing three candidate fluids using their published data sheet properties
Day3Tanks, Pumps and Heat Exchangers
- Tank designs, fluid flow paths and avoiding hot spots around high-power components
- Sizing circulation pumps and heat exchangers for single-phase immersion systems
- Condenser coils, vapor containment and lid design for two-phase systems
- Secondary water loop temperatures and their effect on system capacity
- Redundancy for pumps and heat exchangers and behavior during component failures
- Instrumentation for fluid temperature, level, flow and vapor concentration in tanks
- Exercise: sizing the heat exchanger and pump for a 100 kW immersion tank
Day4Facility Integration and Layout
- Connecting immersion tanks to facility water, dry coolers and heat reuse systems
- Floor loading, structural checks and slab design for heavy fluid-filled tanks
- Hall layout, service aisles, lifting equipment and hardware handling space
- Power distribution, cabling and network connections designed for immersed servers
- Fire protection, ventilation and spill containment requirements for immersion halls
- Retrofitting existing air-cooled halls versus building new facilities designed for immersion from day one
- Exercise: preparing a layout and floor loading check for an immersion hall
Day5Operation, Maintenance and Technology Choice
- Hardware insertion, removal, draining and drying procedures for immersed servers
- Fluid top-up, sampling, filtration and record keeping in daily operation
- Operator safety, personal protective equipment and handling of fluid spills
- Monitoring, alarms and integration with BMS and data center management tools
- Total cost of ownership comparison between immersion and direct-to-chip cooling
- Team exercise: selecting the cooling technology for a defined AI cluster project
- Final assessment and discussion of immersion opportunities in participants' facilities
Dates and fees
Fees are in GBP. per delegate.
Certificate
Every delegate who attends the full programme receives a Harfard Technology certificate of completion stating the course title, duration, dates and venue.
Frequently asked questions
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