# Computational heat-exchanger demonstrator

Internal DPM development brief. Current status and results to be supplied.

## Brief
Use LEAP71’s open-source HelixHeatX example as a geometric reference for a compact thermal-management demonstrator. Develop DPM-specific requirements, design rules and a bounded low-pressure test approach, then compare an adapted design with a defined baseline.

## Requirements to confirm
- Confirm fluid compatibility, temperature range, flow rate, envelope and permissible pressure loss.
- Define wall thickness, channel access, inspection and cleaning requirements for the selected process.
- Preserve the source revision, licence and attribution when adapting code.
- Treat generated geometry as a design starting point that still requires engineering assessment and testing.

## Design and iteration
- Archive the open-source reference and define a simple comparison baseline.
- Vary a bounded set of geometric parameters against thermal, flow and manufacturing constraints.
- Use suitable analysis to compare variants and identify the uncertainty to resolve physically.
- Manufacture inspectable demonstrators and test leakage, flow and heat transfer within the approved rig conditions.

## Manufacture
Start with in-house visual, channel-access or assembly prototypes where suitable. Select the material and final manufacturing route against the test conditions; specialist metal manufacture and finishing can be scoped through partners when needed. Do not infer thermal or pressure performance from a visual prototype.

## Evidence to collect
- Heat-transfer result under stated inlet conditions and flow rates.
- Pressure loss and leakage against agreed test limits.
- As-built dimensions, access and manufacturing constraints.
- Predicted versus measured performance with uncertainty and repeatability.
- Actual build and iteration records for the selected manufacturing route.

## Publication record
Project owner: pending
Current stage: pending
Baseline revision: pending
Design revision: pending
Manufacturing records: pending
Predicted results: pending
Measured results: pending
Measurement uncertainty: pending
Reviewed by/date: pending
DBOS contribution: pending
In-house operations: pending
Partner operations: pending
Images and film references: pending