OVERVIEW
Air Burners’ PGF-500 is a revolutionary new method for eliminating wood and other vegetative waste, as well as clean construction debris. At the core of the system is Air Burners’ patented FireBox technology which has been tested and approved by regulatory agencies around the globe. The PG FireBox can eliminate up to 10 tons per hour [9.1 mt/h] of waste material while simultaneously producing up to 500 kW of clean, emission-free energy without the use of supplemental fossil fuels.
In addition, the PG FireBox does not require any of the costly and emissions-intensive pre-processing (grinding/chipping/sorting) of fuel required by conventional biomass power generating systems. The PG FireBox consumes whole logs, limited only by the length of the FireBox in the system (generally 20 ft [6 m] or more). The volume of the waste material is reduced by approximately 98%, leaving only a small quantity of ash and biochar that can be repurposed for agricultural or other uses.
A portion of the ‘waste’ heat in the exhaust from the FireBox is captured and directed to a heat exchanger to produce hot water (300° F [150° C] or less), which in turn supplies an Organic Rankine Cycle (ORC) power generating unit. The ORC utilizes an organic working fluid in a ‘reverse refrigeration process’ where the thermal energy input to the system is converted mechanical, and ultimately electrical energy by driving an asynchronous (induction) generator. The system is connected to the local electrical grid in accordance with local regulations where either some or all of the energy is consumed on site and any excess energy produced is sold back to the utility.
Aside from the electrical grid connection, only a cooling source for the ORC is required at the site. This can be either air-cooling or water cooling. In the case of water cooling no water is consumed or contaminated.
Product Specs

Specifications for Power Generation Module
- POWER REQUIREMENTS
- 480 VAC/60 Hz/3φ or 400 VAC/50 Hz/3φ, 1.2 kA Service Higher Voltages Available
- POWER FACTOR
- Load and site-dependent (0.9 – 1.0)
- POWER GENERATION MODULE
- Fully-Integrated Organic Rankine Cycle (ORC) Power Module with 500 kW
Asynchronous Generator - SAFETY SYSTEMS
- Electrical Grid Protection Over-Temperature Over-Pressure
- CONTROL SYSTEM
- PLC-Based; Remote Monitoring and Control over the Internet
- TRANSPORTATION AND SETUP
- Ships in containers; Ready for immediate use after simple skid alignment and
hood installation; Lifting eyes provided for crane lifting. Skid bases
facilitate final positioning - COOLING WATER (CW) REQUIREMENTS
- 725 gpm [45.7 l/s], 77° F [25° C] Max.
- CW INTERFACE
- DN200 PN16 Flanges
- INDUCTION FAN
- VFD-Controlled; Variable Speed
- HOT OIL (HO) PUMP
- VFD-Controlled; Variable Speed
- HO SYSTEM THERMAL FLUID
- Therminol 66 (or equiv.)
- CONSTRUCTION
- Steel WF beam and square tubing construction with full-length skid plate;
Epoxy-paint - WEIGHT (EST.)
- 69,500 lbs [31,600 kg]
- DIMENSIONS
- L x W x H See Site Plan Drawing
Specifications for Firebox Module
- AIR CURTAIN FAN POWER
- 30 hp [22 kW] Electric Motor VFD-Controlled
- BURN CONTAINER (FIREBOX)
- 4″ [102 mm] thick refractory panels filled with proprietary thermal ceramic
material. Two full-height rear doors, two ignition holes - SAFETY SYSTEMS
- Fully integrated with PGF controller
- INSTRUMENT PANEL
- Touch-screen control from PGF Control Room
- AIR CURTAIN FAN MOTOR CONTROL SYSTEM
- PLC-Based; Speed selection fully integrated with system controller
- AIR SUPPLY
- Custom Heavy Duty Fan
- TRANSPORTATION AND SETUP
- Shipped fully assembled and tested, requires only connection of the
three-phase motor power to the PG Module power distribution panel - WASTE MATERIAL ELIMINATION RATE
- Up to 10 tons per hour [9.1 mt/h]
- FIREBOX MODULE WEIGHT
- 32,500 lbs [14800 kg]
- OVERALL DIMENSIONS
- L x W x H 30′ 2″ x 7′ 5″ x 8′ 6″ [9.2 m x 2.3 m x 2.6 m]
- FIREBOX INSIDE DIMENSIONS
- L x W x H 19′ 8″ x 5′ 0″ x 7′ 1″ [6.0 m x 1.5 m x 2.2 m]

