QUIZ: Finding Hidden Energy Waste with Data Loggers: 8 Cost-Saving Opportunities

1) While compressed air has many other uses, it is an inefficient way to deliver energy in a facility because*
- A. less than 10 percent of the input energy does useful work.
- B. it is a drag on indoor air quality.
- C. 70 percent of the input energy is converted to heat at the compressor itself.
- D. A & C
2) With data loggers, you have the ability to*
- A. evaluate air compressor efficiency.
- B. reduce peak demand charges.
- C. justify, or not, the costs of more complex metering needed.
- D. all of the above
3) The correct way to control air compressors is to*
- A. operate all machines at constant output and monitor reaction.
- B. base-load all except one machine designated to be the swing machine and max out or idle all others.
- C. idle all machines and monitor reaction.
- D. put half of the machines on idle and the other half at max and monitor reaction.
4) Increasing compressed air pressure by just 10 psig will increase operating costs by*
- A. 20%
- B. 15%
- C. 5-8%
- D. 4%
5) Most industrial compressed air systems should be operated at less than*
- A. 40 psig
- B. 60 psig
- C. 75 psig
- D. 100 psig
6) Peak usage charges can be mitigated with data loggers. What is the most useful interval of recorded data to log?*
- A. one minute
- B. fifteen minutes
- C. half an hour
- D. one hour
7) The main energy consumer when facilities operate chillers to provide temperature-appropriate water for manufacturing processes and space cooling is*
- A. evaporators.
- B. cooling towers.
- C. condensers.
- D. refrigeration compressors.
8) It is commonly thought that equipment not actually in use should be turned off from an energy-use perspective. When might this not be the case?*
- A. Restart issues may cause excess use of energy and make the machine better at idle.
- B. Specific machines need to remain in ready mode.
- C. Never. If it is not in use, it does not need to be using energy.
- D. A & B
9) What are the most common sources of waste heat?*
- A. hot exhaust
- B. cooling towers
- C. boiler flue gas
- D. all of the above
10) Data loggers ____________*
- A. can save companies significant energy costs.
- B. are an excellent initial alternative to expensive metering costs.
- C. are as accurate an alternative as detailed metering.
- D. A & B
11) BONUS Question: What topics are you interested in reading about in future issues of the BOC Bulletin? Check your top 3 picks.
- Practical alternative energy sources
- Projects BOC graduates are doing in their buildings
- Technical updates in lighting
- Technical updates in HVAC systems
- Technical updates in building controls
- Technical updates for water conservation
- Industry trends in facilities management
12) BONUS Question: What do you consider to be the most helpful resources for information about building operation and maintenance technologies and practices? (e.g., websites, magazines, associations, vendors, etc.) List your two favorite resources.
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QUIZ: Finding Hidden Energy Waste with Data Loggers: 8 Cost-Saving Opportunities

QUIZ: Finding Hidden Energy Waste with Data Loggers: 8 Cost-Saving Opportunities

Your Information