Boiler Combustion Results

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P
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2			OIL		NATURAL GAS
3	Date		4/21/11	9/27/12	8/21/13		11/23/13								Date
4	System Change		n/a		Install 250 MBH Head		Baseline	Add Baffles		Baffles + Restrict Comb. Air					System Change
5	Control Voltage	vdc	n/a	n/a	2.0	5.0	5.5	5.5	2.0	2.0	2.0	3.0	4.0	5.0	Control Voltage
6	Firing Rate	MBH	245	245	58	240	262	262	78	78	78	153	212	248	MBH	Firing Rate
7	Stack Temp	degF	554	492	422	760	785	690	600	575	580	627	660	686	degF	Stack Temp
8	Primary Temp	degF	66	78.4	80	80	75	75	75	75	75	75	75	75	degF	Primary Temp
9	Net Temp	degF	488	413.6	342	680	710	615	525	500	505	552	585	611	degF	Net Temp
10	Comb Air Restriction	%	n/a	n/a	0	0	0	0	0	50	65	50	50	50	%	Comb Air Restriction
11	O2	%	6.7	7.1	10	6.2		5.8	6.2	4.4	2.4	4.6	4.8	4.8	%	O2
12	CO2	%	10.6	10.2	6.1	8.2									%	CO2
13	CO	ppm	61	140	1	1		16	2	3	50	3	6	8	ppm	CO
14	NO	ppm	--	--	6	15									ppm	NO
15	NO2	ppm	--	--	1	2									ppm	NO2
16	NOx	ppm	--	--	8	18									ppm	NOx
17	Excess Air	%	43.7	51.4	91	42		34	37.5	23.7	11.5	25.1	27.2	26.5	%	Excess Air
18	Efficiency	%	80.6	81.8	78.3	71.9		77.0	79.1	80.3	81.1	79.5	78.5	78	%	Efficiency
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