Stoker Simulator
The stoker apparatus simulates the combustion environment typically found in stoker-fired boilers. The facility simulates a moving bed in that the air flow rates are varied with time. The ignition plane can be traced as a function of time and operating conditions.
Features
Design |
Fabricated from 14" steel pipe; 1.25" concentric castable refractory and 3.5" of insulation.
Four sampling ports (3/8" diameter) at 90o angles to each other at 1" intervals (axially) from the grate
Electric coil is used to provide the ignition energy to the top of the bed |
Fuel Fired |
Coal, Coal-Biomass Mixture, Coal-Tire Mixture |
Fuel Charge |
1.7 lb corresponding to a bed thickness of 4.5" giving a midrange area firing density typical of utility-scale stoker boilers (8-50 lbs per sq ft) |
Combustion Air |
Supplied via distributor plate to the bottom of the chamber |
Diagnostics |
- Continuous emission monitoring: CO, CO2, O2, SO2 and NOx within the bed
- Gateway 2000 computer interface with apparatus to collect temperatures, gas composition data and pressure drop across the bed using Viewdac data collection software
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