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ME444 ENGINEERING PIPING SYSTEM DESIGN

ME444 ENGINEERING PIPING SYSTEM DESIGN. CHAPTER 11: STEAM PIPING SYSTEM (1). CONTENTS. INTRODUCTION STEAM PIPING SYSTEM STEAM PIPE SIZING. 1. INTRODUCTION TO STEAM. Steam is widely used as heat transmission fluid (via its latent heat).

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ME444 ENGINEERING PIPING SYSTEM DESIGN

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  1. ME444 ENGINEERING PIPING SYSTEM DESIGN CHAPTER 11: STEAM PIPING SYSTEM (1)

  2. CONTENTS • INTRODUCTION • STEAM PIPING SYSTEM • STEAM PIPE SIZING

  3. 1. INTRODUCTION TO STEAM • Steam is widely used as heat transmission fluid (via its latent heat). • Heat from steam is cheaper than heat from electricity. (about half price for heavy oil fuel)

  4. SATURATION TEMPERATURE Where T in Degree Celcius P in bars (a)

  5. ENERGY IN STEAM AT 0 BARG

  6. STEAM TABLE AT 0 BAR STEAM EXPAND 1600 TIMES THE VOLUME OF LIQUID

  7. HEAT TRANSMISSION FLUIDS

  8. HEAT TRANSMISSION FLUIDS

  9. STEAM USERS

  10. APPLICATIONS OF STEAM … Vacuum packing… … Thinning organic compound, morass for example …

  11. JACKET VESSEL

  12. STEAM COIL

  13. STEAM INJECTION

  14. AIR HEATER

  15. HOT WATER CLEANING

  16. CONDENSATE

  17. STEAM GENERATION

  18. FIRE TUBE BOILER

  19. BOILER EXPLOSION

  20. BOILER EXPLOSION

  21. FLASH STEAM CAN STEAM BE FORMED FROM WATER WITHOUT ADDING HEAT?

  22. CONTROL VALVES 2. STEAM PIPING SYSTEM

  23. BASIC STEAM CIRCUIT

  24. PIPES

  25. STEAM HEADER/ MANIFOLD

  26. MAIN PIPE INSTALLATION

  27. TRAPPING CONDENSATE

  28. REDUCERS

  29. GENERAL INSTALLATION TAP FROM TOP OF PIPE

  30. AIRVENT

  31. VALVES

  32. VALVES

  33. CHECK VALVES

  34. PRESSURE GUAGES VALVE BOURDON TUBE RING TYPE SYPHON (FILLED WITH WATER TO SEPARATE STEAM FROM THE TUBE)

  35. TEMPERATURE GUAGES SIGHT GLASS

  36. VACUUM BREAKERS

  37. VACUUM HAZARD - IMPLODING

  38. LEVEL GUAGE GLASSES

  39. EXPANSION JOINTS

  40. EXPANSION JOINTS

  41. STEAM TRAPS

  42. CONTROL VALVES 3. STEAM PIPING SIZING

  43. PIPE MATERIAL • SCHEDULE 40 STEEL PIPES RANGE FROM 15mm TO 600mm ARE SUFFICIENT FOR MOST STEAM PIPES. • LARGE PIPES OR PIPES IN HIGH PRESSURE SYSTEM MAY BE SCH80. • MATERIAL’S STRENGTH DECREASE WITH INCREASING TEMPERATURE. • FOLLOW ASME B31.1 SERIES FOR POWER PIPING.

  44. HEAT vs STEAM RATE

  45. PIPE SIZE

  46. PIPE SIZING

  47. STEAM PRESSURE DROP CHART

  48. PIPE SIZING METHODS PIPE SIZING BASED ON VELOCITY • NORMAL VELOCITY 25 - 40 m/s • LOWER VELOCITY FOR LONG PIPE PIPE SIZING BASED ON PRESSURE DROP HIGHER STEAM PRESSURE = SMALLER PIPE

  49. PIPE SIZING BASE ON VELOCITY

  50. PIPE SIZING BASE ON VELOCITY

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