Document n98onaVw6kypoypqZBzNJ4JLR

r Lnih i ir r o EXHIBIT SH-342 SHELL OIL COMPANY ENGINEERING STANDARDS DESIGN STANDARD 5-1 INSULATION AUGUST 1959 ABS-061217 SHELL OIL COMPANY ENGINEERING STANDARDS INSULATION DESIGN STANDARD 5-1 AUGUST 1959 PAGE I OF I INDEX DESIGN STANDARD 5-1.1 GENERAL 5-1.1.1 Scope 5-1.2 HOT SERVICE 5-1.2.1 5-1.2.2 5-1.2.3 5-1.2.h 5-1.2.5 Insulation Requirements Insulation Thicknesses Personnel Protection Insulation Steam Trap Insulation Steam Tracing Insulation 5-1.3 COLD SERVICE 5-1.3-1 Insulation Requirements 5.1.3-2 Insulation Thicknesses CHARTS APPENDED CHART NO. I - Hot Service - Recommended Insulation Thicknesses CHART NO. 2 - Cold Service - Recommended Insulation Thicknesses CVJ OJ CVJ PAGE NO. 1 1 1 2 3 ABS-061218 SHELL OIL COMPANY ENGINEERING STANDARDS 5-1.1 GENERAL DESIGN l_N SU_LA rj Os STANDARD 5 - AUGUST I 9s 9 PAGE I OF 0 5. I . I . I SCOPE This standard covers the Engineering design of insulation systems for piping, vessels, exchangers, tanks, pumps, compressors, and turbines in hot ami coll services. It is intended to provide a basic guide for consideration of recurring in sulation design problems and to inform engineers of preferred design procedures. 5-1.2 HOT SERVICE 5-1.2.! INSULATION REQUIREMENTS . | Hot service piping and equipment shall be insulated to conserve energy, maintain process stability, protect personnel, or for a combination of these reasons. In general, hot service insulation shall be applied on piping ccerating above 150F and on equipment operating above 170F. In addition, any hot surfaces of large area such as vessels and exchangers which operate below 170F shall be considered to determine the need for insulation for process stability. .2 Valves, flanges and fittings, except -unions, in steam and boiler feed water services shall be insulated. Valves, flanges and flanged fittings in other services shall not be insulated except where required for personnel protec tion, unless specified by Shell. Welded and screwed fittings, except unions in insulated lines shall be insulated. 5-1.2.2 INSULATION THICKNESSES I Insulation thicknesses for hot service piping, vessels, exchangers, pumps, compressors, and turbines shall be in accord with appended chart No. 1. The recommended thicknesses are based upon personnel protection requirements The need for additional thickness for energy conservation or process stabil ity shall he considered. 2 Insulation thickness for hot service tanks 12 feet OD or less shall be 1 ^inch and shall be 1 inches for tanks over 12 feet OD. The density of the insulation for tanks over 12 feet OD shall be dependent upon economic fac tors and specified by Shell for each installation. .3 Insulation thicknesses recommended in appended Chart No. 1 are based on an insulating material having approximate thermal conductivity values of O.LL at 200F and 0.58 at 600F. Materials with other conductivity values may he substituted provided there is a corresponding adjustment in insulation thicknesses. ABS-061219 INSULATION DESIGN STANDARD 5-1 AUGUST 1959 PAGE 2 OF 3 SHELL OIL COMPANY ENGINEERING STANDARDS 5-1.2.3 PERSONNEL PROTECTION INSULATION .| Insulation thicknesses for personnel protection shall be such that the ex ternal surface termperature of the insulation shall be a maximum of 150? for piping and 170F for other equipment. The effect of weatherproof cover ings shall not be considered in establishing the insulation thicknesses. 2 Insulation for personnel protection shall generally be applied to hot sur faces which can be inadvertently contacted by personnel in normal perfor mance of their duties. Such hot surfaces shall be insulated to a height 7 feet above normal walking or standing surfaces. 3 Unless specified by Shell internally insulated equipment such as cat cracker vessels and lines, reformer and desulphurizer reactors, etc., shall not be insulated for personnel protection by the insulation contractor even though their surface temperatures exceed 170F. Personnel protection for these hot surfaces shall be applied, when required by Shell. 4 Personnel protection on equipment from which it is desirable to dissipate heat, such as steam condensate knockout drums and exchangers with cooling water on one side, shall be expanded metal guards instead of insulation. 5-1.2.4 STEAM TRAP INSULATION Steam traps and their outlet piping shall not be insulated except for personnel protection or where the outlet piping is arranged so that a liquid head of condensate can collect. Inlet piping to traps shall be insulated. 5-1.2.5 STEAM TRACING INSULATION 1 Piping or equipment which is steam traced shall be covered with oversized insulation to include the Tracer Lines. Insulation thicknesses shall be selected from appended Chart No. 1 with the thickness for pipe insulation based on the size used. 2 Steam traced systems shall be completely insulated including equipment, valves, flanges fittings and tracer line loops. 5-1.3 COLD SERVICE 5-1.3.I INSULATION REQUIREMENTS Cold service equipment and piping shall be completely insulated to conserve energy, maintain process stability, protect personnel, prevent moisture con densation, or for a combination of these reasons. In general, cold service insulation shall be applied on equipment and piping operating at 50F, or less which are part of a refrigeration system or contain fluids which are cooled by a refrigeration system. ABS-061220 SHELL 01L COMPANY ENGINEERING STANDARDS INSULATION DESIGN STANDARD 5-I AUGUST 1959 PAGE 3 OF 3 5-1.3.2 INSULATION THICKNESSES . | Insulation thicknesses for cold service equipment shall be in accord with appended Chart No. 2. The recommended thicknesses, which are based upon, prevention of moisture condensation, will in general be adequate for energ conservation, process stability, and personnel protection requirements. When additional thicknesses are necessary, the required insulation tnicknesses shall be calculated. Insulation thicknesses recommended in appended Chart No. 2 are based on ar. insulating material having approximate thermal conductivity values of 0.3 at 0F and 0.39 at 70F. Materials with other conductivity values may be substituted provided there is a corresponding adjustment in insulation thicknesses. ABS-061221 SHELL 01L COMPANY ENGINEERING STANDARDS DES I GN I NSULATI ON STANDARD 5-I AUGUST 1959 CHART NO. I HOT SERVICE - RECOMMENDED INSULATION THICKNESSES FOR COMBINATION OF ENERGY CONSERVATION, PERSONNEL PROTECTION, AND PROCESS STABILITY VESSELS, EXCHANGERS, PUMPS, COMPRESSORS, AND TURBINES FOR INSULATION SURFACE TEMPERATURES OF 170F. INSULATION THICKNESS, INCHES MAXIMUM TEMPERATURE. F 1 1ft 600 800 2 216 950 1100 3 1200 PIPE SIZE INCHES 1 Down ift 2 3 4 6 8 10 12 14 16 18 20 22 24 1 650 550 550 500 500 430 PIPING FOR INSULATION SURFACE TEMPERATURES OF 150F. INSIDE UNIT AREAS INSULATION THICKNESS, INCHES m 2 2ft 3 3ft MAXIMUM TEMPERATURE, F. 850 1100 1200 750 900 1200 1200 750 900 1150 1200 700 850 1150 1200 1200 650 800 1000 1150 1200 600 800 900 1050 1200 600 750 900 1050 1200 600 750 900 1000 1150 600 750 850 1000 1100 550 700 800 950 1050 550 700 800 900 1050 550 700 800 900 1000 550 650 800 900 1000 550 650 800 900 1000 550 650 750 850 950 4 1200 1200 1200 1150 1150 1150 1100 1100 1100 4ft 1200 1200 1200 1200 1200 1200 OUTSIDE UNIT AREAS Thicknesses shall be selected on individual basis for each refinery depending upon economic factors, personnel protection, and process stability. NOTES 1. The above tables are based on 80F. ambient still air and on an insulating material having approximate thermal conductivity valves of 0.44 at 200F. and 0.58 at 600^. 2. The above tables do not include the insulating effect of final coverings which can be expected to further reduce insulation surface temperatures. ABS-061222 SHELL OIL COMPANY ENGINEERING STANOARDS INSULATION DESIGN STANDARD 5-1 AUGUST 1959 CHART NO. 2 COLD SERVICE - RECOMMENDED INSULATION THICKNESSES FOR COMBINATION OF ENERGY CONSERVATION, PROCESS STABILITY, PERSONNEL PROTECTION, AND CONDENSATION PREVENTION IRON PIPE SIZE INCHES 1 Down \Vi 2 3 4 6 8 10 12 14 16 18 20 24 30 Vessel OD Inches 36 42 48 54 60 66 72 78 84 96 108 120 144 Over 144 To Flat PIPING, VESSELS, EXCHANGERS, PUMPS, AND COMPRESSORS INSULATION THICKNESS, INCHES 1 m2 7Vi 3 3H 4 4tt 5 MINIMUM TEMPERATURE, F 50 25 -10 -25 -70 50 30 15 -15 -45 50 30 15 -15 -45 -90 50 30 15 -10 -35 -60 50 30 20 0 -30 -55 50 45 25 0 -25 -45 -70 45 25 0 -15 -35 -60 45 30 10 -10 25 -50 45 30 15 -5 -25 -45 -65 45 30 15 0 -25 -40 -55 45 30 20 0 -25 35 -55 45 30 20 0 -25 35 -50 50 30 20 0 -25 -35 -45 -65 50 30 20 0 -25 -35 -45 -65 50 30 20 5 -10 -25 -40 -60 50 30 20 10 50 SO 25 10 50 30 25 10 50 35 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 10 50 40 25 15 -5 -25 -40 -5 -20 -35 -5 -20 -35 -5 -20 35 -5 -20 -30 -5 -15 -30 0 -15 -10 0 -IS -30 0 -15 -30 0 -15 -30 0 -15 -30 0 -15 -30 0 -15 30 0 -10 -25 -55 -55 -50 -50 -50 -50 -50 -45 -45 -45 -45 -45 -45 -40 5tt 6 -65 65 -65 -60 -75 -60 -75 -60 -75 -55 -65 NOTES 1. The above tables ate based on 90F. ambient still air, 80% relative humidity, and on an insulating material hoving approximate thermal conductivity values of 0.35 at 0F. ond 0.39 at 70 F. 2. The above tables are based on the prevention of moisture condensation. 3. The above tables do not include the insulating effect of final covering. ABS-061223 ft