Passive Edge
冷链箱 / 冷链车 · PCM相变材料用量计算器
Cold Chain Box / Truck · PCM Dosage Calculator
基于保温箱体散冷负荷模型 · 适用于医药冷链、生鲜冷链、冷链货车等场景
Based on thermal insulation box heat leakage model · Applicable to pharmaceutical, fresh food & truck cold chain
快速模板Quick start

选一个典型场景,一键填入参数,再在下方微调。

Pick a typical scenario to pre-fill the form, then fine-tune below.

1 箱体基本参数Box Basic Parameters
可填写客户名、批次号或自定义标识(可选)
Customer name, batch no. or custom label (optional)
箱体外表面积(顶 + 底 + 四面,共六个面全部计入)
Total external surface area (top + bottom + 4 sides, all 6 faces included)
单位:m²
Unit: m²
保温材料导热性能,可参考下方快速参考表选择
Thermal conductivity of insulation; refer to quick reference table below
W/(m²·℃)
需要维持冷链的总时长(如运输+中转+最后一公里)
Total cold chain duration (transport + transit + last mile)
单位:h(小时)
Unit: h (hours)
2 环境温度模拟Ambient Temperature Simulation
建议填写运输路线上设定的最高环境温度(取极端值以保守设计)
Recommended: max ambient temperature along the transport route (use extreme value for conservative design)
需维持的箱内温度(如 2~8℃ 填写区间中值 5,或按最苛刻端填写)
Required internal temperature (e.g. 2~8°C → use 5°C, or most stringent endpoint)
3 相变材料(PCM)参数Phase Change Material (PCM) Parameters
选择 PCM 熔点(点击卡片自动填入焓值):
Select PCM Melting Point (click to auto-fill enthalpy):
-21℃
深冷 / 冻品
Deep Freeze
275 kJ/kg
-18℃
冷冻食品
Frozen Food
250 kJ/kg
5℃
医药 2~8℃
Pharma 2~8°C
255 kJ/kg
RAL
10℃
常规保鲜
Fresh Keep
255 kJ/kg
熔点选择建议:PCM 相变点应低于目标温度区间上限 2~3℃,且高于目标下限 2~3℃。
例如目标区间 2~8℃,建议选用 5℃ 熔点的 PCM,确保在整个区间内持续蓄释冷量。
Selection Guide: PCM melting point should be 2~3°C below upper limit AND 2~3°C above lower limit of target range.
E.g. target 2~8°C → recommend 5°C PCM to ensure continuous cold storage.
点击上方卡片自动填入,或手动输入产品实测值
Click card above to auto-fill, or enter measured value
kJ/kg
补偿开箱散热、实际使用偏差、工程余量等,建议保守设计取 1.3
Compensates for door openings, usage deviation & margin; recommend 1.3 for conservative design
无量纲
dimensionless
4 确定 PCM 配置方案 · 快速参考表(经验值)PCM Configuration · Quick Reference (Empirical Values)

根据使用场景,点击下表任意一行即可自动填入对应的 U 值。

Click any row below to auto-fill its heat-transfer coefficient U into Step 1.

场景 Scenario 推荐保温材料 Recommended Insulation U 值参考 W/(m²·K)
高端医药冷链箱High-End Pharma VIP(真空绝热板) VIP (Vacuum Insulation) 0.05 – 0.26
普通生鲜冷链箱Fresh Food Box PU(聚氨酯泡沫) PU (Polyurethane Foam) 0.3 – 0.5
冷链货车 / 挂车Cold Chain Truck PU 发泡板 PU Foam Board 0.4 – 0.7
计算结果Calculation Result
传热温差 ΔT
Heat Temp Diff ΔT
-
单位散冷负荷
Unit Heat Load
-
W/m²
总散冷负荷
Total Heat Load
-
kJ
PCM 相变材料需用量(含安全系数)
PCM Dosage (with safety factor)
- kg
理论用量(不含安全系数)
Theoretical (no safety factor)
-
kg
把这个用量转化为具体的 SolarCool / UltraST 配置?我们的工程团队可以帮你验证。Turn this dosage into a real SolarCool / UltraST configuration? Our engineering team can validate it with you.
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