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Gas Fired Hot Air Generator 

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Introduction

Kerone provides advanced gas fired hot air generator engineered to deliver precision, reliability, and high operational efficiency. With 50+ years of multidisciplinary engineering expertise, Kerone designs fully customized systems tailored to industrial heating, drying, thermal processing, and laboratory standards.

Airotherm is a combination of shell-in-shell and tube-in-shell type hot air generator. It has four concentric shells. The furnace shell has a blind end where the flue gases are reversed over the flame itself forming the 1st and 2nd pass. The 3rd pass is situated between the 2nd &3rd shell from where the flue gases, led via a duct, to the tube-in-shell type heat exchanger. The 4th & 5th pass are through tubes of the tube-in-shell heat exchanger. The burner assembly is bolted on a removable inner cover plate. The combustion air is led to an air register which is formed by the annular space of the inner cover and the outer cover. The air going for combustion is thus preheated.

Why Choose Kerone Gas Fired Hot Air Generator

The fresh air has four passes to absorb heat from the flue gases. The 1st pass of the cold air enters around the 5th pass of the flue gases. Likewise all the subsequent passes of the air and flue are in counter current mode enabling maximum heat transfer. The final 4th pass of the fresh air which is at the last leg of the heat transfer path wraps around the furnace in circular path absorbing the heat attaining the required temperature for the process. The max temp for this model of heater is 300 The design of the heater is made simple and operator friendly.

Types and Features of Gas Fired Hot Air Generator

Kerone offers direct-fired hot air generators for applications where combustion products in the air stream are acceptable (e.g., drying of non-sensitive materials), and indirect-fired generators for processes requiring clean, contamination-free hot air (e.g., food, pharmaceutical, and fine chemical drying). Generators are available in single-pass and recirculation configurations, with or without heat recovery from exhaust air. Portable and skid-mounted versions are available for temporary or seasonal applications, while large fixed installations serve continuous industrial processes.

Key Features

  • Direct and indirect-fired configurations for clean and non-clean hot air applications
  • Temperature range from 50°C to 600°C with PID control to ±2°C accuracy
  • Thermal efficiency >90% through optimized heat exchanger design and combustion control
  • High-temperature SS-316 or Inconel heat exchanger surfaces for durability and cleanliness
  • Safety interlocks and smart automation
  • Modulating gas burner providing efficient part-load operation across the full temperature range
  • Optional heat recovery from exhaust air stream improving overall energy efficiency
  • Skid-mounted design for rapid installation and commissioning with minimal site work

Powered by AI, ML & IoT

Future-Ready Engineering Driven by AI & IoT

Our advanced AI, ML, and IoT technologies, this solution delivers smarter automation, real-time insights, and predictive intelligence to enhance efficiency and drive future-ready growth.

Real-Time Monitoring & Control

Continuous tracking of process parameters with instant adjustments.

Predictive Maintenance

Intelligent fault detection to prevent failures before they occur.

Adaptive Process Optimization

Dynamic tuning of operations for maximum output and efficiency.

Cloud Dashboards & Analytics

Unified access to real-time insights and performance trends.

Energy & Resource Savings

Smarter utilization of energy to cut costs and reduce waste.

Secure IoT Connectivity

Encrypted data flow with seamless integration across plant systems.

Applications of Gas Fired Hot Air Generator

Kerone’s Gas Fired Hot Air Generators are extensively used in drying, food processing, and material handling industries. Typical applications include:
    • Hot air supply for spray dryers processing dairy, food, and chemical powders
    • Fluid bed dryer and granulator heating in pharmaceutical and chemical production
    • Rotary kiln and drum dryer heating for minerals, fertilizers, and biomass processing
    • Tunnel oven and conveyor oven heating for food baking and industrial curing
    • Aggregate drying and heating for asphalt, sand, and construction material processing
    • Space and comfort heating for large industrial and agricultural buildings
Kerone’s gas fired hot air generator ensures high performance, operational stability, and superior energy efficiency. Each system is designed for long-term reliability and industry-specific optimization.

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Frequently Asked Questions (FAQ)

  • Kerone's generators support natural gas, LPG (propane/butane), town gas, biogas, and CNG, with burner nozzle selection matched to the specific fuel's calorific value and supply pressure.

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