---
title: "Gas Cooler"
industry: "Chemical Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:GAS_COOLER"
  data_integrity_hash: "7d685a6b121290c32d2b1c3bb99b6aad"
  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:GAS_COOLER"
  data_source_uri: "https://cnfx.com/llms/industry/chemical-manufacturing/product/gas-cooler.md"
  official_resource_url: "https://cnfx.com/industry/chemical-manufacturing/product/gas-cooler"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-25 bar, 50-400°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 172
    unit: "MPa"
    consequence: "Thermal fatigue from cyclic temperature differentials exceeding 200°C between gas inlet and coolant, combined with creep deformation at sustained temperatures above 400°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Coolant flow reduction below 0.3 m/s due to pump failure or fouling"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual redundant coolant pumps with flow sensors triggering automatic shutdown at 0.25 m/s"
  - node_2:
      trigger: "Corrosive gas composition containing &gt;50 ppm H2S at temperatures above 150°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "316L stainless steel construction with post-weld heat treatment to 1050°C followed by rapid quenching"
bom_nodes:
  cooling-tubes:
    type: "component"
    urn: "URN:CNFX:ME:COOLING_TUBES"
    interface_type: "physical-logic-coupled"
  tube-sheets:
    type: "component"
    urn: "URN:CNFX:ME:TUBE_SHEETS"
    interface_type: "physical-logic-coupled"
  cooling-jacketcasing:
    type: "component"
    urn: "URN:CNFX:ME:COOLING_JACKETCASING"
    interface_type: "physical-logic-coupled"
  inletoutlet-manifolds:
    type: "component"
    urn: "URN:CNFX:ME:INLETOUTLET_MANIFOLDS"
    interface_type: "physical-logic-coupled"
  support-structure:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_STRUCTURE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5149:2014 (REFRIGERATING SYSTEMS AND HEAT PUMPS - SAFETY AND ENVIRONMENTAL REQUIREMENTS)"
    scope: "Verified Engineering Specification"
  - standard: "EN 378:2016 (REFRIGERATING SYSTEMS AND HEAT PUMPS - SAFETY AND ENVIRONMENTAL REQUIREMENTS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/chemical-manufacturing/product/gas-cooler.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "c2bae87279515467c8b86dd88423074c7ff4098683c1de160b6bd207410fbe85"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Gas Cooler

## 1. Technical Definition
A heat exchanger that reduces the temperature of process gases in industrial systems

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-25 bar, 50-400°C**. Failure boundary: **Tube wall stress exceeds 172 MPa yield strength at 27 bar internal pressure, or gas outlet temperature exceeds 450°C causing material degradation**, Mechanism: **Thermal fatigue from cyclic temperature differentials exceeding 200°C between gas inlet and coolant, combined with creep deformation at sustained temperatures above 400°C**.

### 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 |
| :--- | :--- | :--- | :--- |
| Coolant flow reduction below 0.3 m/s due to pump failure or fouling | 8 | Localized tube overheating leading to material annealing and rupture at 480°C | Dual redundant coolant pumps with flow sensors triggering automatic shutdown at 0.25 m/s |
| Corrosive gas composition containing &gt;50 ppm H2S at temperatures above 150°C | 8 | Sulfide stress cracking initiating at weld seams with crack propagation rate of 0.1 mm/year | 316L stainless steel construction with post-weld heat treatment to 1050°C followed by rapid quenching |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Gas Compressor**, **Process Gas Blower**, **Cooling Tower**  
**Downstream Applications**: Polyethylene, Ammonia, Ethylene Oxide  

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

### Q: What materials are best for gas coolers in corrosive chemical environments?
**A**: Stainless steel offers excellent corrosion resistance for harsh chemical processes, while copper alloys provide superior thermal conductivity. Material selection depends on specific gas composition and temperature requirements.

### Q: How does the cooling jacket design affect gas cooler efficiency?
**A**: The cooling jacket/casing optimizes heat transfer by maximizing surface contact with cooling medium. Proper jacket design ensures uniform temperature reduction and prevents hot spots in process gases.

### Q: What maintenance is required for industrial gas coolers?
**A**: Regular inspection of tube sheets and cooling tubes for fouling or corrosion, cleaning of inlet/outlet manifolds, and checking support structure integrity. Maintenance frequency depends on operating conditions and gas composition.

## 6. Manufacturing Compliance
- ISO 5149:2014 (REFRIGERATING SYSTEMS AND HEAT PUMPS - SAFETY AND ENVIRONMENTAL REQUIREMENTS)
- EN 378:2016 (REFRIGERATING SYSTEMS AND HEAT PUMPS - SAFETY AND ENVIRONMENTAL REQUIREMENTS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Gas Cooler](https://cnfx.com/industry/chemical-manufacturing/product/gas-cooler)**

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

> **Reference ID**: GAS_COOLER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 8f1d07c2
