Thursday, December 03, 2009

GR-TECH Boiler Statistics 1

Below are some specifications for the PENN STATE Agricultural Program.

Preheat fuel: 1.5 liters (0.4 gal.) kerosene or fuel oil for 10-15 minutes.
Fuel: For 20 seconds after preheat, burner dual-fuels with kerosene and plastic, then plastic thereafter indefinitely.
Pellet types: Burns polyethylene (#2, #4) or polypropylene (#5). Note: Polystyrene (#6) & ABS pellets require a 50% barrel length increase, currently not available.
Plastic fuel feed rate range: 9-15 kg/hr. (20 - 33 lb/hr.)
Current plastic fuel feed rate: 13 kg/hr. (29 lb/hr.)
Dioxin (PCDD/F) emissions: 0.119 ng-TEQ/sm3 @ 12% O2 as confirmed by Korea Testing Laboratory (Note: US EPA allows 5.0 ng-TEQ/sm3)
Boiler type: Circulating hot water
Rated capacity: 100,000 kcal/hr.(396,850 Btu/hr.) on 9 kg/hr.(19.8 lb/hr.) with 11,500 kcal/kg (20,686 Btu/lb) plastic fuel pellets
Thermal efficiency: 75%. At 150 oF water, thermal efficiency goes to 89%
Combustion chamber operating temperature: 900-1100 oC (1652-2012 oF)
Boiler cut-in temperature: 60 oC (140 oF)
Boiler cut-out temperature: 80 oC (176 oF)
Boiler heating cycle: 5 hrs. comprised of 2 hrs. burning & 3 hrs. circulating
Boiler heating rate: 1 ton water requires 45 minutes heating time (entire heating system will hold 3 tons water with 2 hours heating time)
Power needs: 4 kW@ 110 vac with 208 vac for vacuum fuel supply
Future boiler sized for Plastofuel: 2,000,000 kcal / hr. (7,937,000 Btu / hr.)

Avg flue gas temp.: 151 C
Avg flue gas flow rate: 5.1 m/sec