Industrial Ventilation Systems
Reference data and engineering information about industrial ventilation systems for hvac systems applications.
industrialventilationsystems
Overview
Engineering reference data for Industrial Ventilation Systems in HVAC systems.
Key Formulas
Sensible Heat
Heat causing temperature change.
Latent Heat
Heat causing moisture change.
COP (Cooling)
Coefficient of performance.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Heat transfer | W | |
| Mass flow rate | kg/s | |
| Specific heat of air | J/(kg·K) | |
| Temperature difference | K |
System Types Comparison
The suitability of different ventilation system types varies based on industrial application requirements. The following table provides a quick selection guide for principles in industrial environments.
6 rows
Primary Requirement | Ventilation CAV | Ventilation VAV | Heating CAV | Heating VAV | Cooling CAV | Cooling VAV | Mixed Displacement |
|---|---|---|---|---|---|---|---|
| Temperature Control | 1 | 1 | 1 | 5 | 1 | 5 | 5 |
| Energy Efficiency | 1 | 5 | 1 | 5 | 5 | 5 | 5 |
| Initial Cost | 1 | 1 | 5 | 5 | 5 | 5 | 5 |
| Noise Level | 1 | 1 | 5 | 1 | 1 | 1 | 1 |
| Complexity | 5 | 5 | 1 | 1 | 1 | 5 | 1 |
| Air Distribution | 5 | 5 | 1 | 5 | 5 | 1 | 1 |
Source: Engineering Toolbox Adaptation
Key System Definitions:
- Variable Air Volume (VAV): The supply air temperature remains constant, but the volume of air delivered varies to meet the load.
- Constant Air Volume (CAV): The volume of supply air remains constant, but its temperature varies to meet the load. These systems are becoming less common in new buildings as VAV systems offer closer temperature control, lower energy consumption, and reduced noise at lower fan speeds.