Natural Gas
Minnesota
Boiler Seminar Schedule

About the instructors

Dunwoody College Custom Training instructors have extensive technical skills and classroom expertise. Your boiler system instructors have a wide range of industry experience and bring to the series enthusiasm and in-depth boiler knowledge. For six Thursday sessions, you can expect both practical instruction and interactive curriculum that you can put into practice back at your operations.

 

Session 1
Thurs., Oct. 2: Heat Exchange Efficiency

  • How commercial building heating/cooling systems work
  • Boiler design: steam versus hot water heating
    • Water side/fire side heat exchange, fuel types, operating characteristics
  • Distribution system requirements and operation
  • Commercial building performance and comfort factors
  • Assessing efficiency: the efficiency equation—heat in versus heat out
  • Strategies to reduce fuel consumption: efficient boiler characteristics
  • Distribution efficiencies: control of heated space
  • Operating overview: water level, draft, stack temperature, routine maintenance impact
  • CenterPoint Energy heating rebate programs

Session 2
Thurs., Oct. 9: Heat Generation and Effective Distribution

  • Moving Btu: CFM, ΔP, ΔT, GPM, HVAC system dynamics
  • Psychometrics and comfort: understanding sensible and latent heat
  • Vendor discussion and demonstration: steam systems
    • Condensate return systems, boiler feed, ΔP to assess condensate return problems
    • Steam trap operation:
      • Application and operating characteristics of float, thermostatic, F&T, 
        inverted bucket, impulse, TLV traps
      • Testing performance; ΔT, ultrasonic, IR, test ports; assess operation
      • Maintenance and diagnostics routines
    • Venting non-condensables, vacuum breaks
    • Using the steam table to improve heat exchange

Session 3
Thurs., Oct. 16: Hydronic Heating and Load Control

  • Hydronic systems:
    • Getting the air out: vents, air eliminators, purging
    • Effective distribution method, modifications, maintenance
  • Maintaining coils, control valves, air dampers, and unitary equipment
  • Standard versus high efficiency boiler design
  • Condensing boilers – 94 percent efficient and above
  • System components: burner, exchanger, distribution
  • Multiple boilers: staging, rotation, backup
  • Boiler controls: on/off, modulating, reset, operating limits
  • Flame safety, microprocessors modules, safety interlocks
  • Load control components: temperature, pressure, on-off, timed, proportional, DDC

Session 4
Thurs., Oct. 23: Combustion/Operating Efficiency, Performance Maintenance

  • Burner design, requirements for proper combustion
  • 3 Ts of combustion: time, temperature, turbulence
  • Combustion science; CO, CO₂, NO2, hydrocarbons, temperatures, percentage measure
  • Assessing and adjusting combustion: O2 trim and stack economizers
  • Reading the meter and calculating efficiency
  • Operating measures to reduce fuel use
  • Increase heating efficiency:
    • Vent dampers
    • Stack economizers
    • Insulation, preheats, boiler staging, tune-ups
    • Commercial building energy/enthalpy recovery equipment
  • Combustion analysis: Use of stack analyzers, burner adjustment
  • Fire side and water side cleaning and inspection
  • Maintenance requirements: safety valves, water columns, level control components
  • Seasonal lay-up: wet or dry procedures, storage requirements, re-start

Session 5
Thurs., Oct. 30: Boiler Water Treatment

  • Water science; destructive corrosives, negative elements
  • Softening: ion exchange basics, RO, filters
  • Feed water pumps and de-aerators
  • Treatment: deposit control, chelate treatment, phosphate treatment, sludge conditioners, silca contamination, corrosion inhibitors, oxygen scavengers
  • Conductivity control: skimmers and bottom blow down
  • Vendor discussion and demonstration: water treatment
    • Water treatment presentation
    • Demonstration: water sample analysis and water treatment procedure

Session 6
Thurs., Nov.  6: Site Visit: Routine Care and Maintenance

  • Boiler logs: requirements and opportunities for efficiency improvement
  • Trending performance measures
  • Boiler site visit:
    • Identify system components
    • Specific device operating characteristics, idiosyncrasies
    • Track a system flow, monitor performance
  • Vendor discussion and demonstration: burner adjustment
    • Stack analysis, burner tuning, confirmation, re-check

Register now.

space is limited.

 

Earn 3 CEU credits