Performance Data on Jet Compressors

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1 Bulletin F Supp. Performance Data on Jet Compressors Description Performance Table 1 - Thermal Data for Gases Symbols Used In Thermodynamic Formulas Page Chart A - Sizing Chart for Thermocompressors (Types,,,, 9) Discharge Flow Range: - Chart B - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: - psig Chart C - Capacity Ratios of 1 psig Operating Live Steam Discharge Pressure Range: - - psig Chart D - Capacity Ratios of 1 psig Operating Live Steam Discharge Pressure Range: psig Chart E - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: - 1 psig Chart F - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: psig Chart G - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: - psig Chart H - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: psig Chart I - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: psig Chart J - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: - psig Chart K - Capacity Ratios of psig Operating Live Steam Discharge Pressure Range: - psig Description Chart L - Capacity Ratios of psig and F Discharge Pressure Range: - 1 psig Chart M - Capacity Ratios of Steam Jet Compressors psig and F Discharge Presure Range: 9 - psig Chart N - Capacity Ratios of psig and F Discharge Pressure Range: 1 - psig Chart O - Capacity Ratios of psig and F Discharge Pressure Range: - psig Chart P - Capacity Ratios of psig and F Discharge Pressure Range: - psig Chart Q - Propane-Air Back Pressure Curves Heating Value Discharge Pressure Range: - 9 psig Chart R - Propane-Air Capacity Curves Heating Value For Type Gas Jet Compressors Discharge Capacity Range: - 1 Cubic Ft. x Per Hour Chart S - Butane-Air Back Pressure Curves Heating Value Discharge Pressure Range: - 9 psig Chart T - Butane-Air Capacity Curves Heating Value For Type Gas Jet Compressors Discharge Capacity Range: - 1 Cubic Ft. x Per Hour Chart U - Natural Gas-Air Back Pressure Curves Heating Value Discharge Pressure Range: 1-19 psig Chart V - Natural Gas-Air Capacity Curves Heating Value For Type Gas Jet Compressors Discharge Capacity Range: - Cubic Ft. x Per Hour Chart W - Air-Air Back Pressure Curves For Type Air Jet Compressors Back Pressure Range: - psig Chart X - Air-Air Capacity Curves For Type Air Jet Compressors Discharge Capacity Range: - Cubic Ft. x Per Hour Page Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com 1

2 Bulletin F Supp. PERFORMANCE To help you evaluate jet compressors in terms of your particular requirement the following performance criteria should be considered. Jet compressors can be divided into two categories based upon the type of performance. The first category is termed noncritical in performance. If the absolute pressure at the compressor discharge is less than 1. times the absolute pressure at the suction (for instance, suction pressure 1 psia - discharge pressure psia), the performance is noncritical. When performance is noncritical, a constant pressure can be maintained at the suction of a compressor, at varying capacities, by controlling motive flow. The second category is termed critical in performance. If the compression ratio (ratio of absolute discharge pressure to absolute suction pressure) is over 1. to 1 (for instance, psia is psia), the performance is critical. When performance is critical, control cannot be exerted by means of the motive fluid. In order to control the suction pressure of such a unit at varying process loads, it is necessary to maintain a constant load on the compressor by addition of a secondary suction fluid, or to vary the suction pressure at the compressor by introducing an artificial pressure drop in the suction line. Most jet compressors are operated at low compression ratios and are noncritical in performance. Should there be any question about control or performance, please check with S&K Engineers. SIZING CHARTS To find out whether or not a jet compressor will provide desired performance and the size required to meet requirements, refer to the charts on pages through for thermocompresors and to the charts on pages and for other gases. TABLE 1. THERMAL DATA FOR GASES (for use in ordinary calculations) Gas Formula Molecular Weight (Lb/Mol.) Specific Heat at Atmospheric Pressure & Temp. of C Ratio of Specific Heats at C & Low Pressure Helium He Argon Ar Hydrogen H Nitrogen N Oxygen O Air Carbon Monoxide CO.. 1. Nitric Oxide NO.. 1. Hydrogen Chloride HCI Hydrogen Sulfide H S.. 1. Carbon Dioxide CO Nitrous Oxide N O Sulfur Dioxide SO Water Vapor H O γ = Cp Cv Ammonia NH Acetylene C H Methane CH Natural Gas (sp. gr..) Methyl Chloride CH CI Ethylene C H Ethane C H Ethyl Chloride C H CI Propane C H Butane-n C H SYMBOLS USED BY S&K IN THERMODYNAMIC FORMULAS The symbols below are common to this and similar type problems. Check gas tables for thermodynamic properties. M1 = Molecular weight of primary gas Cps = Specific heat of secondary gas at a constant pressure Ms = Molecular weight of secondary gas Cp = Specific heat of mixed gas at a constant pressure M = Molecular weight of discharged gas t1 = Temperature of primary gas in degrees F γ1 = Cp1 Cv1 = Specific heat ratio of primary gas ts = Temperature of secondary gas in degrees F t = Temperature of discharge gas in degrees F γ = Cp = Specific heat ratio of mixed gas Cv P1 = Pressure of primary gas in psia Pr1 = Pressure ratio of secondary to primary gas pressure, Ps/P1 Ps = Pressure of secondary gas in psia Pr = Pressure ratio of secondary to discharge gas pressure, Ps/P P = Pressure of discharge gas in psia Rw = Weight ratio of secondary gas to primary gas Cp1 = Specific heat of primary gas at a constant pressure Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com

3 Bulletin F Supp. Chart A - Sizing Chart for Thermocompressors (Types,,,, 9) Chart B - Capacity Ratios of psig Operating Live Steam Dry and Saturated Steam Based on discharge velocity 1 - = 9 fpm = 1 fpm and up = 1 fpm Discharge Flow - lb per hr 1 1/ / 1 Suction Pressure psig Discharge Pressure - psig 1... Chart C - Capacity Ratios of 1 psig Operating Live Steam Chart D - Capacity Ratios of 1 psig Operating Live Steam 9 1 Suction Pressure - psig Suction Pressure psig Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com

4 Bulletin F Supp. Chart E - Capacity Ratios of psig Operating Live Steam Chart F - Capacity Ratios of psig Operating Live Steam Suction Pressure psig Suction Pressure psig Chart G - Capacity Ratios of psig Operating Live Steam Chart H - Capacity Ratios of psig Operating Live Steam Suction Pressure psig Suction Pressure psig Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com

5 Bulletin F Supp. Chart I - Capacity Ratios of psig Operating Live Steam Chart J - Capacity Ratios of psig Operating Live Steam Suction Pressure psig Suction Pressure psig Chart K - Capacity Ratios of psig Operating Live Steam Chart L - Capacity Ratios of psig and F. 9 Suction Pressure 1 psig Suction Pressure psig Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com

6 Bulletin F Supp. Chart M - Capacity Ratios of Steam Jet Compressors psig and F. Chart N - Capacity Ratios of psig and F Suction Pressure psig Suction Pressure psig Chart O - Capacity Ratios of psig and F. Chart P - Capacity Ratios of psig and F Suction Pressure psig Suction Pressure psig Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com

7 Bulletin F Supp. 9 1 Chart Q - Propane-Air Back Pressure Curves Air Temperature - F Suction Pressure - 1. psia Propane Heat Value - Btu Propane Pressure - psig - 1 F psig - F psig - 9 F psig - F Discharge Capacity - Cubic Feet X Per Hour Chart R - Propane-Air Capacity Curves For Type Gas Jet Compressors Air Temperature - F - WC Drop Across Check Valve psig - F Propane Pressure - psig - 1 F psig - 9 F psig - F Capacity Ratio Size Ratio / /. 1. 1/ Chart S - Butane-Air Back Pressure Curves Chart T - Butane-Air Capacity Curves For Type Gas Jet Compressors Air Temperature - F Suction Pressure - 1. psia Butane Heat Value - Btu psig - 1 F psig - 1 F psig - 1 F Butane Pressure - psig - 11 F Discharge Capacity - Cubic Feet X Per Hour Air F - WC Drop Across Check Valve psig - 1 F psig - 1 F psig - 1 F Butane Pressure - psig - 11 F Capacity Ratio Size Ratio / /. 1. 1/ Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com

8 Bulletin F Supp Chart U - Natural Gas-Air Back Pressure Curves Air Temperature - F WC Drop Across Check Valve Natural Gas Pressure - psig. psig at Btu 1 9 Discharge Capacity - Cubic Feet X Per Hour 1 Chart V - Natural Gas-Air Capacity Curves For Type Gas Jet Compressors Natural Gas - F - SP GR. HV - Btu - Air F - WC Drop Across Check Valve Natural Gas Pressure - psig 9 Capacity Ratio Size Ratio / /. 1. 1/ Chart W - Air-Air Back Pressure Curves For Type Air Jet Compressors Chart X - Air-Air Capacity Curves For Type Air Jet Compressors Air Temperature F Suction Pressure - 1. psia Air Temperature F Suction Pressure - 1. psia Back Pressure (psig) 1 psig Rw = W s = lb. Suction Air W 1 lb. Motive Air Discharge Capacity SCFH X Rw = W s = lb. Suction Air lb. Motive Air Schutte & Koerting Metropolitan Drive Trevose, PA 19 USA tel: (1) 9-9 fax: (1) sales@s-k.com 11 psig W Capacity Ratio Size Ratio / /. 1. 1/ ISO 91 Certified

Performance Data on Water Jet Exhausters and Compressors

Performance Data on Water Jet Exhausters and Compressors Performance Data on Jet Exhausters INTRODUCTION This supplemental data should be used in conjunction with S&K Bullletin P which describes the construction, operation, and application of Schutte & Koerting