Calculator

Catalytic Heater Sizing Calculator

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Table 1. Tank specifications

Tank Diameter	ft
Wall Thickness	in	input decimal not fraction (ex. 3/16 = 0.1875)
Wall Thickness in feets	feet	input decimal not fraction (ex. 3/16 = 0.1875)
Tank Height	ft
Inlet Temp	F
Outlet Temp	F
Ambient Temp	F
Insulation Thickness	in
Insulation R Factor	h.ft2.F/Btu/in	(spray urethane = 7; mineral wool = 3.5)
Insulation U Factor	Btu/h/ft2/F
Water Cut		input decimal not % (ex. 90% = 0.9)

Table 2. Fluid properties

Water Specific Heat	Btu/Ib/R
Oil Specific Heat	Btu/Ib/R
Water Density	lb/bbl
Oil API		*TO BE USED FOR LIGHT OIL (API above 21) OR WATER APPLICATIONS ONLY.*
Oil Density	lb/bbl

Table 3. Required information

Wind Velocity		mph
Fluid Flow Rate		bbl/d
Catalyst Heat Flow		Btu/h/ft2
Hours in a Day		h

Table 4-1. Calculated specifications

Air U		Btu/h/ft2/F
Total U		Btu/h/ft2/F
Tank OD		ft

Table 4-2. Surface area

Side		ft2
Top
Bottom

Table 5, 6, 7. Heat

Catalyst Width-1		ft
Alpha
Top Surface		ft2
Side Surface		ft2
Bottom Surface		ft2
Heat Required to Warm up Fluid		Btu/hr
Heat Loss From Tank With Catalyst		Btu/hr
Heat Loss From Tank with no vault		Btu/hr

Table 8. Catalyst surface area

Total Required Heat		Btu/hr
Heater Surface Area Required (float)		ft2
Heater Surface Area Required		ft2
Catalyst Height		ft
Vault Height		ft
Catalyst Width-2		ft
Check

Table 11. CO2 production

CO2 Production		tons/yr

Natural gas

Table 9. Fuel required for catalyst

Fuel CV		Btu/lb
Fuel Flow Rate		lb/hr

Table 10. Fuel required for fire tube

Fuel CV		Btu/lb
Heat Required		Btu/hr
Efficiency
Total Heat		Btu/hr

Table 12. Cost of fuel

Price of NG		$/GJ
Cost of Fuel		$/year

Propane

Table 13. Fuel required for catalyst

Fuel CV		Btu/lb
Fuel Flow Rate		lb/hr

Table 14. Fuel required for fire tube

Fuel CV		Btu/lb
Heat Required		Btu/hr
Efficiency
Total Heat		Btu/hr
Fuel Flow Rate		lb/hr

Table 15. CO2 production

Catalyst		lb/hr
Fire Tube		lb/hr

Table 16. Cost of fuel

Price of Prop		$/GJ
Cost of Fuel (Catalyst)		$/Y

Note: Catalyst heat flow based on verification testing by a 3rd party. If efficiencies are improved with future testing, this value will be adjusted accordingly. Calculator based on inflow conditions. For static calculations, please contact Enviro Vault at the Calgary office (403)263-4433 or in Denver (303)357-4822.

Disclaimer: The catalytic heater sizing tool uses heat transfer rates derived from actual testing under specific conditions. It is an estimate of the heat required based on initial site conditions. If the operating conditions change for any reason, the results of the sizing calculator may no longer be valid. Because of possible changes to operating conditions, Enviro Vault Canada Ltd. cannot guarantee the performance of the supplied heaters.

For basic information purposes only. Please contact Enviro Vault prior to ordering. Thank you.

***DUE TO THE CHARACTERISTICS OF HEAVY OIL (> 900 kg/m3) WHICH INCLUDES FOAMING, HIGH SAND CUTS, ETC, ENVIRO VAULT ADVISES AGAINST USING THIS CALCULATOR FOR HEAVY OIL APPLICATIONS***

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