Case Studies / Engineering assessment
A graphene heating panel validated for piglet creep heating: 240 measurement points across 2.4 m², every point at or above 30°C, with a maximum spread of just 2.4°C. A circuit redesign then raised power by ~12% while lowering the peak temperature — uniformity engineered into the circuit pattern, not just the material.
01 / Product problem
XIHE ran a panel-level thermal validation of a graphene heating panel built for piglet creep heating at a livestock producer. The customer is not named in this record. The 2.4 m² panel was measured on a fixed 1×2.4 m grid with 240 temperature points: every point read at or above 30°C, the average was 31.37°C, the maximum spread was 2.40°C, and total input was 210 W. Separately, a smaller panel went through a circuit-pattern redesign (V1→V2): input power rose by ~12%, peak temperature fell from 38.1°C to 36.9°C, and the share of surface above 37°C fell from 4.55% to 0.
Integration requirements
Case record
Application & engineering tags
Project status
Development stage is not established by this assessment. Ask for the project-specific record during technical review.
Engineering assessment. Product imagery and proposed architecture do not establish tested performance or commercial development stage.
2.4°C
Maximum temperature spread across the 2.4 m² panel
240 / 100%
Measurement points — all at or above 30°C
210 W
Total input power over the 2.4 m² heating surface
38.1 → 36.9°C
Peak temperature after the V1→V2 circuit redesign
02 / Integration structure
V1 and V2 used the same graphene heating material. The only change was the circuit pattern — how current paths were laid out across the surface. Power rose by ~12%, yet the peak temperature dropped from 38.1°C to 36.9°C and the area above 37°C went from 4.55% to zero. The material generates the heat; the pattern decides where it goes.
A single sensor can confirm that a panel is warm. It cannot confirm that a panel is uniform. The 2.4 m² record uses 240 fixed grid points: 100% at or above 30°C with a 2.40°C maximum spread. Uniformity is a property of the full measurement set, taken at one instant under defined input and ambient conditions.
This is what XIHE means by Custom Heating Integration: the heating layer is engineered around the application — circuit pattern, thermal distribution and target temperature together. The same approach applies wherever thermal uniformity matters: livestock equipment, outdoor infrastructure, technical textiles, heated wearables and industrial enclosures. Not just how much heat you can generate — where that heat goes.
Assembly detail
The panel as validated: the heating layer, the circuit pattern that distributes its output, and the measurement grid that recorded it.
Panel-level thermal validation record. Test area 1×2.4 m; 240 measurement points; average 31.37°C; maximum spread 2.40°C; 100% of points at or above 30°C.
Thermal interpretation
Spatial uniformity describes variation across an area. Control stability describes variation over time at one location.
The 2.4 m² panel averaged 31.37°C with a 2.40°C maximum spread; all 240 points read at or above 30°C. The average describes the level; the spread describes the uniformity. Both come from the same measurement set.
Raising power normally raises the peak. The V1→V2 redesign raised power by ~12% while the peak fell from 38.1°C to 36.9°C — the new circuit pattern redistributed the same material’s output more evenly.
Panel-surface temperatures under test conditions. They do not establish finished-product surface temperatures, animal-level outcomes, or long-term field performance.
03 / Engineering validation
Proposed verification work. Test conditions and acceptance limits must be set for the specific assembly before testing begins.
| Integration challenge | Possible physical mechanism | Proposed verification method | Engineering decision to evaluate |
|---|---|---|---|
| Local hotspot after a power increase | Higher input concentrates current in the existing pattern. | Re-map the full grid after the redesign at the new input; compare peak temperature and the above-37°C share against the acceptance rule. | Circuit pattern geometry and acceptance limits. |
| Edge or corner cooling | Panel boundaries lose heat faster than the centre. | Include edge and corner points in the grid — the 240-point record covers the full 1×2.4 m area, not just the centre. | Measurement region definition. |
| Panel record mistaken for product approval | A panel-level result gets quoted as a finished-product claim. | State the test conditions with every figure; keep panel, product and field records separate. | Evidence scope and permitted wording. |
Panel-level thermal validation under stated test conditions. The figures on this page describe the tested panels only; they do not establish finished-product safety, regulatory compliance, or field performance. The customer is not named in this record.
04 / Development stage
Confirm the project-specific stage and evidence before treating an assessment as a qualified production program.
Engineering handoff records
05 / Next step
Review component scope, check the Engineering evidence, and bring your project requirements to a Technical Review.
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Related integration formats
Existing product integration
Existing XIHE Capsule products combine upper-cabin and lower-mattress graphene heating. Explore the system architecture and discuss OEM adaptations for your product.
XIHE Capsule product archive visual.
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Engineering assessment
Scaling a heating surface changes electrical distribution, thermal boundaries and assembly tolerances. The area must be engineered as a system.
View →Share the product geometry, layer stack and operating conditions. We will review the heating architecture and the questions a sample needs to answer.
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