---
title: "Industrial Vacuum Cooling Tunnel"
industry: "Processing and Preserving of Fruit and Vegetables"
verification_protocol:
  urn: "URN:CNFX:ME:INDUSTRIAL_VACUUM_COOLING_TUNNEL"
  data_integrity_hash: "df4f08a93d6447033cfadd8d5d46bb95"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:INDUSTRIAL_VACUUM_COOLING_TUNNEL"
  data_source_uri: "https://cnfx.com/llms/industry/processing-preserving-fruit-vegetables/product/industrial-vacuum-cooling-tunnel.md"
  official_resource_url: "https://cnfx.com/industry/processing-preserving-fruit-vegetables/product/industrial-vacuum-cooling-tunnel"
  is_verified_logic: true
attributes:
  primary_spec:
    status: "config-dependent"
    typical_range: "0.1-0.9 bar absolute pressure, 2-15°C coolant temperature"
    unit: "kg/hour"
  secondary_spec:
    status: "config-dependent"
    typical_range: "0.1-0.9 bar absolute pressure, 2-15°C coolant temperature"
    unit: "m³"
engineering_limits:
  max_safe_operating_point:
    value: 0.05
    unit: "bar"
    consequence: "Vapor pressure collapse below 0.05 bar prevents efficient heat transfer via evaporation; coolant above 18°C exceeds latent heat of vaporization threshold for water (2257 kJ/kg at 1 atm)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Vacuum seal degradation due to elastomer compression set exceeding 15%"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual redundant sealing system with PTFE primary and silicone secondary seals"
  - node_2:
      trigger: "Condenser coil fouling reaching 0.5 mm mineral deposit thickness"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Automated CIP system with 2% citric acid solution cycling every 8 hours"
bom_nodes:
  vacuum-chamber:
    type: "device"
    urn: "URN:CNFX:ME:VACUUM_CHAMBER"
    interface_type: "physical-logic-coupled"
  vacuum-pump-system:
    type: "device"
    urn: "URN:CNFX:ME:VACUUM_PUMP_SYSTEM"
    interface_type: "physical-logic-coupled"
  conveyor-belt:
    type: "part"
    urn: "URN:CNFX:ME:CONVEYOR_BELT"
    interface_type: "physical-logic-coupled"
  condensation-system:
    type: "component"
    urn: "URN:CNFX:ME:CONDENSATION_SYSTEM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 12100:2010 SAFETY OF MACHINERY - GENERAL PRINCIPLES FOR DESIGN - RISK ASSESSMENT AND RISK REDUCTION"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/processing-preserving-fruit-vegetables/product/industrial-vacuum-cooling-tunnel.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "7ca25e06c395ff921fe139327e531eef3d060d30607fc719e49c08b817297a3a"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Industrial Vacuum Cooling Tunnel

## 1. Technical Definition
Industrial tunnel system for rapid cooling of processed fruits and vegetables using vacuum technology.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-0.9 bar absolute pressure, 2-15°C coolant temperature**. Failure boundary: **0.05 bar absolute pressure (vacuum pump cavitation threshold), 18°C coolant temperature (phase change inhibition point)**, Mechanism: **Vapor pressure collapse below 0.05 bar prevents efficient heat transfer via evaporation; coolant above 18°C exceeds latent heat of vaporization threshold for water (2257 kJ/kg at 1 atm)**.

### 2.1 Analytical Physics Model
Governed by the **LMTD Logarithmic Mean Temperature Difference**:

> **Primary Equation**: $Q = U \cdot A \cdot \Delta T_{lm}$  
> **Engineering Impact**: Sizing validation for pasteurization and cooling tunnels.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| U | Heat Transfer Coeff | Engineering Constant |
| A | Area | Engineering Constant |
| \Delta T_{lm} | LMTD | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Vacuum seal degradation due to elastomer compression set exceeding 15% | 8 | System pressure rise to 0.12 bar within 30 seconds | Dual redundant sealing system with PTFE primary and silicone secondary seals |
| Condenser coil fouling reaching 0.5 mm mineral deposit thickness | 8 | Heat transfer coefficient reduction to 850 W/m²·K from design 1200 W/m²·K | Automated CIP system with 2% citric acid solution cycling every 8 hours |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| primary_spec | Config-dependent | kg/hour | Verified |
| secondary_spec | Config-dependent | m³ | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Vacuum Chamber](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/vacuum-chamber.md) `(Standalone System)`
- [Vacuum Pump System](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/vacuum-pump-system.md) `(Standalone System)`
- [Conveyor Belt](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/conveyor-belt.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Industrial Vacuum Pump System**, **Product Conveyor System**, **Refrigeration Unit**  
**Downstream Applications**: Vacuum-Cooled Fresh-Cut Vegetables, Rapid-Chilled Fruit Products, Pre-Cooled Vegetable Ingredients  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: How does vacuum cooling improve fruit and vegetable preservation?
**A**: Vacuum cooling rapidly reduces product temperature through evaporation under low pressure, minimizing quality degradation, extending shelf life, and maintaining texture and nutritional value better than conventional cooling methods.

### Q: What maintenance is required for the vacuum cooling tunnel?
**A**: Regular maintenance includes vacuum seal inspections, conveyor belt cleaning, vacuum pump oil changes, and stainless steel surface sanitization. We recommend quarterly professional servicing to ensure optimal performance and food safety compliance.

### Q: Can this system handle different fruit and vegetable sizes?
**A**: Yes, the adjustable conveyor belt and modular vacuum chamber design accommodate various product sizes from small berries to large leafy vegetables. Custom configurations are available for specific processing requirements.

## 6. Manufacturing Compliance
- ISO 12100:2010 SAFETY OF MACHINERY - GENERAL PRINCIPLES FOR DESIGN - RISK ASSESSMENT AND RISK REDUCTION

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Industrial Vacuum Cooling Tunnel](https://cnfx.com/industry/processing-preserving-fruit-vegetables/product/industrial-vacuum-cooling-tunnel)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: INDUSTRIAL_VACUUM_COOLING_TUNNEL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c1bfcaac
