Hot Air Generator (Bottom Flow)
High-Efficiency Hot Air Heating System for Industrial,
Defense & Extreme Climate Applications
The Hot Air Generator (HAG) is a rugged, high-efficiency
heating system designed for industrial, commercial, defense, and large-space heating
applications. Offered in direct-fired and indirect-fired configurations, it provides
rapid heat-up, uniform air distribution, precise temperature control, and dependable
performance in high-altitude and extreme cold environments.
Executive Summary
The Hot Air Generator (HAG) is a high-efficiency, Ductable
heating solution for industrial, commercial, defense, and high-altitude
applications. It offers a heat output range of 10,000 Kcal/hr. to 50,00,000
Kcal/hr. equivalent to approximately 11 kW to 5,80 kW, airflow from 100 to
50,000 m³/hr., and hot air temperatures from 20°C to 400°C, with special
designs up to 600°C. With 85–90% combustion efficiency, ±2°C temperature
control accuracy, operation up to −40°C ±5°C, multi-fuel compatibility, and
noise levels of ≤75 dB(A), it is engineered for reliable 24×7 winter duty in
demanding environments.
Salient Features
·
Direct / Indirect Fired Options: Suitable for processing
heating, commercial heating, and clean indoor space heating.
·
Wide Capacity Range: 10,000 Kcal/hr to 5,000,00 Kcal/hr
for diverse heating loads.
·
High Efficiency: 85–90% combustion efficiency for reduced
fuel consumption and operating cost.
·
Multi-Fuel Operation: Compatible with HSD, LPG, Natural
Gas, Biomass, Briquettes, and Electricity.
·
High Temperature Output: 20°C to 400°C; up to 600°C in
special designs.
·
Extreme Climate Ready: Designed for high-altitude duty
and ambient temperatures up to −40°C ±5°C.
·
Precise Temperature Control: PID-based control with
accuracy up to ±2°C.
·
Automatic Safety System: Automatic ignition, flame
monitoring, modulation control, and shutdown protection.
·
Clean Air Option: Indirect-fired models deliver
smoke-free, contamination-free hot air.
·
Ductable Design: Supports insulated GI/MS ducting for
single-zone, multi-zone, and long-distance distribution.
Detailed Specifications
| Type | Direct Fired / Indirect Fired |
|---|---|
| Heat Output Capacity | 10,000 Kcal/hr. to 50,00,00 Kcal/hr. |
| Equivalent Capacity | Approx. 11 kW to 5,80 kW |
| Air Flow Rate | 100 to 50,000 m³/hr. |
| Hot Air Temperature | 20°C to 400°C; up to 600°C in special design |
| Recommended Heating Area | 35–61 Kcal/hr./Sq. Ft. |
| Design Ambient Temperature | −40°C ±5°C |
| Temperature Control Accuracy | ±2°C |
| Fuel Options | HSD, LPG, Natural Gas, Biomass, Briquettes, and Electricity |
| Fuel Consumption | 1–60 L/hr. (Oil Fired) |
| Gas Consumption | 5–60 Nm³/hr. (Gas Fired) |
| Combustion Efficiency | 85–90% |
| Heat Transfer Efficiency (Indirect Type) | 80–85% |
| Combustion Chamber | Refractory-Lined High-Temperature Steel |
| Heat Exchanger | Stainless Steel / Alloy Steel |
| Insulation | Ceramic Fiber Wool / Mineral Wool, 50–100 mm |
| Outer Casing | Powder-Coated MS / Stainless Steel |
| Burner Type | Fully Automatic Modulating Burner |
| Blower Type | Centrifugal / Forced Draft Fan / Exhaust Type |
| Operating Pressure | Atmospheric |
| Power Supply | 415V / 220V ±10%, 3 Phase / 1 Phase, 50 Hz |
| Noise Level | ≤75 dB(A) at 1 meter distance |
| Air Changes per Hour (ACH) | 7 ACH |
| Mounting | Skid-Mounted Modular Construction |
| Chimney | IS Standard Design |
| Compliance | IS Standards / CE / ASME, where applicable |
More Details
Key Advantages
·
Rapid
heat-up for large spaces and winter duty applications.
·
Uniform
air distribution through insulated ducting networks.
·
Flexible
multi-zone heating for rooms, halls, barracks, and work areas.
·
Lower
operating cost through efficient combustion and heat transfer.
·
Safe
indoor operation with indirect-fired clean air models.
·
Low
maintenance with rugged construction and easy service access.
·
Reliable
24×7 operation in high-altitude and severe cold locations.
Recommended Applications
·
Military
barracks, defense camps, shelters, and high-altitude facilities
·
Hospitals,
schools, hotels, warehouses, workshops, and factories
·
Hangars,
large halls, residential complexes, and multi-zone buildings
·
Drying,
curing, pre-heating, process heating, and winter space heating
Summary
The HAG combines rugged construction, efficient heat transfer, flexible
fuel options, Ductable air delivery, precise controls, and integrated safety
systems. It is a dependable solution for continuous process heating and winter
space heating in demanding industrial, institutional, defense, and
high-altitude environments.