Ricardo Balboa - Properties Of Natural Gas

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Ricardo Balboa - Properties Of Natural Gas

  1. 1. PROPERTIES OF NATURAL GAS
  2. 2. Main Service Riser Service Valve Regulator Typical meter set assembly (MSA)
  3. 3. PHYSICAL PROPERTIES OF NATURAL GAS ODORLESS NON-TOXIC LIGHTER THAN AIR
  4. 4. SPECIFIC GRAVITY AIR 1% NATURAL GAS .6% PROPANE 1.5%
  5. 5. METHANE 96.3% CARBON DIOXIDE 1.5% ETHANE 1.1% NITROGEN .6% TRACE GASES .5% 1 Carbon & 4 Hydrogen CH4 PROPERTIES OF NATURAL GAS
  6. 6. COMBUSTION TRIANGLE OXYGEN IGNITION FUEL 1100 DEGREES HEAT 1 CF FUEL (4.5% - 15%) 10 CF AIR
  7. 7. GAS-AIR MIXTURES -NATURAL GAS- % WILL IT BURN? WHY/WHY NOT? Less then 4.5% 4.5 – 15 % More then 15% NO TOO LEAN TOO MUCH AIR not enough gas YES NO PROPER MIXTURE TOO RICH Not enough air TOO MUCH GAS
  8. 8. LUMINOUS BUNSEN
  9. 9. LUMINOUS
  10. 10. BUNSEN PRODUCTS OF COMBUSTION CO2 CARBON DIOXIDE - H20 WATER VAPOR
  11. 11. INCOMPLETE COMBUSTION AT A BUNSEN / LUMINOUS FLAME
  12. 12. POOR FLAME CHARACTERISTICS
  13. 13. CARBON MONOXIDE INCOMPLETE COMBUSTION 1. IS ODORLESS 2. IS COLORLESS 3. HAS NO TASTE 4. IS TOXIC
  14. 14. ALDEHYDES INCOMPLETE COMBUSTION 1. HAVE A SHARP ODOR 2. IRRITATE NOSE 3. ARE ACCOMPANIED BY CARBON MONOXIDE 4. ARE TOXIC
  15. 15. SYMPTOMS OF CO POISONING <ul><li>Initial symptoms of CO poisoning resemble those of the flu. </li></ul><ul><li>A. Headache </li></ul><ul><li>B. Increased perspiration </li></ul><ul><li>C. Dizziness </li></ul><ul><li>D. Nausea </li></ul><ul><li>E. Ringing in the ears </li></ul><ul><li>F. Weakness (in legs) </li></ul><ul><li>G. Vomiting </li></ul><ul><li>H. Mental confusion </li></ul>
  16. 16. <ul><li>SINCE CARBON MONOXIDE REPLACES OXYGEN IN THE BLOOD , </li></ul><ul><li>(800 PPM PLUS) PROLONGED EXPOSURE TO CARBON MONOXIDE CAN LEAD TO DEATH OR ASPHYXIATION </li></ul>Effects of CO @ High Concentrations
  17. 17. Effects of CO at Different Concentrations Permissible exposure level. No apparent toxic symptoms 3,200 ppm 1,500 ppm 400 ppm 35 ppm 100 ppm 200 ppm No poisoning symptoms for long time period. Allowable for several hours . Should not be exposed to this level. Possible mild frontal headache in 2 to 3 hours. Frontal headache and nausea after 1 to 2 hours. Life threatening after 3 hours. Headache, dizziness and nausea in 45 minutes; collapse, and possible death in 2 hours. Headache, dizziness and nausea, collapse in 20 minutes; unconsciousness and possible death in 2 hours. Headache and dizziness in 5 to 10 minutes; unconsciousness and possible death in 10 to 15 minutes . Headache and dizziness in 1 to 2 minutes; unconsciousness and possible death in 10 to 15 minutes . Immediate effect; unconsciousness and danger of death in 1 to 3 minutes. 800 ppm Information from Boiler and Machinery Engineering Bulletin, Federal Register, Vol 45 and Industrial Toxicology, 3rd. Edition. 6,400 ppm 12,800 ppm
  18. 18. SMOTHERING CHAMBER
  19. 19. BOOM BOX
  20. 20. APPLIANCE CONNECTION
  21. 22. RANGE
  22. 23. COMBINATION OVEN & BROILER
  23. 24. WATER HEATER
  24. 25. NOT VENTING
  25. 26. PLUGGED SAFETY
  26. 27. TANKLESS WATER HEATER
  27. 28. GAS DRYER
  28. 29. DRYER MOISTURE EXAUST
  29. 30. WALL FURNACE
  30. 31. WALL FURNACE
  31. 32. RUPTURED FIREBOX
  32. 33. VENTED ROOM HEATER
  33. 34. UNVENTED ROOM HEATER
  34. 35. UNVENTED ROOM HEATER
  35. 36. FORCED AIR UNIT
  36. 37. A B C D E F G H I J K L M N O P Q R S T U V W TDR THERMOSTAT FAN MOTOR GAS VALVE HI LIMIT VENT SWITCH 24 V 120 V GROUND HEATER FAN SWITCH
  37. 38. FLOOR FURNACE
  38. 39. FLOOR FURNACE
  39. 40. CRACKED FIREBOX
  40. 41. GRAVITY HEATER
  41. 42. GAS LOGS
  42. 43. POOL HEATER
  43. 44. QUESTIONS?

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