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Air Flow Latent Heat

Steam Leak or Flow & Cost of Steam

Heat Flow by Conduction

Thermal End-Use Inventory

Air Flow - Sensible Heat

Hot or Cold Fluid

Heat Moved by a Refrigeration System

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Air Flow Thigh Tlow Heat Flow Monthly

litres/sec C C kW Hours kWh GJ

18,000 20 5 332.6 732 243,492 876.6- - -

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Calculation assumes are at or about 50% RH and 21C, for other conditions adjust constant: 1.232 J-litre-1

C-1

Air Flow - Sensible Heat

Monthly Energy

Description

Main Plant Exhaust

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Air Flow Thigh RHhigh Tlow RHlow Hhigh Hlow Heat Flow Monthly

litres/sec ( C ) (%) ( C ) (%) g/kg g/kg kW Hours kWh GJ

2,000 40 90% 20 50% 43.8 7.3 219.8 732 160,920 579.3- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -

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This calculation assumes conditions found in HVAC or plant exhaust for which the constant is: 3.012 J-litre-1

Ambient atmospheric pressure: 101,325 Pa

Air Flow - Latent Heat

Monthly Energy

Description

Dryer Exhaust

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Heat

Flow Capacity Thigh Tlow Heat Flow Monthlykg/s kJ/kg-C C C kW Hours kWh GJ

0.350 4.200 40 10 44.10 732 32,281 116.2- - -- - -- - -

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Hot or Cold Fluid

Monthly EnergyDescription

Chemical Reactor Cooling

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Steam Steam Steam Steam

Flow Pressure Flow Enthalpy Heat Flow Monthly

Type kPA guage kg/hr kJ/kg kW Hours kWh GJ

Plume Length (mmx100) 20.0 520 105.6 2,758 81 732 59,245 213.3

Estimation of the Cost of Saturated Steam

Incremental Cost of Fuel $0.25 /unitEnergy Content 37.60 MJ/unitBoiler Efficiency 76%Saturated Steam Pressure (gauge) 700.0 kPa guageSteam Enthalpy (Vapour + Water) 2769 kJ/kgCost per 1000 kg $24.23 /1000 kg

Cost per 1000 lbs $11.01 /1000 lb

Note: Steam enthalpies are calculated for saturated steam using an approximation with an accuracy of +/- 1%.

Steam Flow, Leak & Cost

Monthly Energy

Description

Small Dryer in Plant B

Size Specifier

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Power Heat Flow Monthly

Input (kW) COP kW Hours kWh

100.0 3.20 320.00 732 234,240- -- -- -- -- -

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Refrigeration

Monthly

Description

Molding Machine Chillers

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Area Conductance Thigh Tlow Heat Flow Monthly

m2

W/m2C C C kW Hours kWh GJ

100 0.900 20 5 1.35 732 988 3.6- - -

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Monthly Energy

Conduction

Description

Warehouse Roof