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Improving Steam System Performance


Quiz Questions

1.________________ is a water chilling process in which cooling of a solution is accomplished by the evaporation of a fluid (usually water), which is then absorbed by a different solution (usually lithium bromide), then evaporated under heat and pressure.
Adsorption process
Absorption chilling
2. Air vent is a device that allows the release of non-condensable gases from a steam system.
True
False
3.________________ is a measure of the concentration of carbonate, bicarbonate, and hydroxyl ion in water, usually expressed in equivalent ppm (parts per million) of calcium carbonate.
Biomass
Alkalinity
4.________________ is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit; equal to 252 calories.
Boiler
British thermal unit
5.Chlorination is the simultaneous production of electrical or mechanical work and thermal energy from a process, thus reducing the amount of heat or energy lost from the process.
True
False
6.What does CHP stand for?
Combined Heat and Power
Combined Heat and Power
Combined Heat and Power
None of the above
7.Combustion efficiency is the measure that represents the amount of fuel energy extracted from flue gases.
True
False
8.______________ is a device that uses steam to strip feedwater of oxygen and carbon dioxide.
Condensate
Deaerator
9.What does HVAC stand for?
Heating, Ventilation and Air Conditioning
Heating, Variety and Air Conditioning
Heavy, Ventilation and Air Conditioning
None of the above
10._______________ is the temperature to which a vapor must be cooled, in order for saturation or condensation to occur.
Evaporation point
Dew point
11._____________ in a combustion process is that amount of air present in excess of the theoretically required air for complete combustion.
Duty Air
Excess air
12.What does LCC stand for?
Life Cycle Cost
Life Cycle Criteria
Light Cycle Cost
None of the above
13.Greenhouse gas emissions are those gases, such as water vapor, carbon dioxide, tropospheric ozone, methane, and low-level ozone that are transparent to solar radiation, but opaque to long wave radiation, and which are believed to contribute to climate change.
True
False
14.What does HRSG stand for?
Heat Recovery Steam Generator
Heat Recovery Standard Generator
Heat Radiant Steam Generator
None of the above
15.______________ is the change in heat content that occurs with a change in phase and without change in temperature.
Heat Exchanger
Latent heat
16.______________ is a general term applied to a relatively loose accumulation of material that has settled to the bottom of a boiler.
Stripper
Sludge
17._______________ is the amount of heat that flows through a specified area and thickness of a material over a specified period of time when there is a temperature difference of one degree between the surfaces of the material.
Relative humidity
Thermal conductivity
18.Reboiler is a regulating flow rate by closing a valve in the system.
True
False
19._______________ is a device that converts the enthalpy of steam into mechanical work.
Thermal system
Turbine
20.What does VFD stand for?
Variable Frequency Drive
Variable Frequency Development
Variety Frequency Drive
None of the above