LPG by MSA - T.R. EGE UNIVERSITY Chemical Engineering...

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T.R. EGE UNIVERSITY Chemical Engineering Department CHEMICAL ENGINEERING DESIGN PROJECT REPORT III Prepared by; 05078901 Ürün ARDA 05068091 M.Serkan ACARSER 05068076 Müge MET İ N 05068052 Ali KÜÇÜK 05078875 S ı la Ezgi GÜNGÖR Submitted to: Prof.Dr.Firuz BALKAN Res.Assist. Nilay G İ ZL İ Sezai ERDEM Tu ğ ba GÜRMEN May 2009 Bornova- İ ZM İ R Date: 25.05.2009
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i SUMMARY In this report we try to explain how to product LPG and how to choose the tank to storage it. We use butane and propane as substances. For our calculations we use for Linde Method. We derive four steps of calculation; from the T-S diagram 1-A, A-B, B-2.
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ii INTRODUCTION Liquefied Petroleum Gas which means LPG has vary large area of usage. Lack of other energy resources and global warming has increased the importance and need of LPG. The most appropriate gases for propane and butane because of their odorless and inert characteristics. Although they are easy to liquefy which is very important. Turkey has a lot of connection of usage and distribution of LPG which shows us we should pay more attention on this subject.
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iii TABLE OF CONTENTS S u m m a r y i I n t r o d u c t i o n i i 1 . 0 R e s u l t s 1 2.0 Property Table 4 3 . 0 D i s c u s s i o n 5 4 . 0 N o m e n c l a t u r e 7 5 . 0 A p p e n d i x 8 6 . 0 R e f e r e n c e s 1 3
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1 1.0 RESULTS Table 1 Antoine Constants Species A B C Propane [C 3 H 8 ] 6,80398 803,81 246,99 n-Butane [C 4 H 10 ] 6,80896 935,86 238,73 Pseudo Mixing 6,80565 848,16514 244,21549 Table 2 Heat Capacity Values Species A B C Propane [C 3 H 8 ] 1,213 0,028785 -8,82E-06 n-Butane [C 4 H 10 ] 1,936 0,036915 -1,14E-05 Pseudo Mixing 1,45585 0,03152 -9,69E-06 Table 3 Conversion of “Table 7” values into SI Units H 1,prop [kJ/kmol] -66887,53 H 1,n-but [kJ/kmol] 46712,47 H 1,mix [kJ/kmol] -28729,684 Critical Property Values Species Tc [K] Pc [bar] Propane [C 3 H 8 ] 369,8 42,48 n-Butane [C 4 H 10 ] 425,1 37,96 Pseudo Mixing 388,3751 40,96175 Table 4
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2 Tablo 5 Iteration steps for calculation T A T ass. [K] τ Cp [kJ/(kmol*K)] T calc. [K] T 416 1,3878 94,8184 416,8572 0,8572 416,1 1,3882 94,8275 416,8440 0,7440 416,2 1,3885 94,8365 416,8309 0,6309 416,3 1,3888 94,8456 416,8178 0,5178 416,4 1,3892 94,8546 416,8047 0,4047 416,5 1,3895 94,8637 416,7916 0,2916 416,6 1,3898 94,8727 416,7785 0,1785 416,7 1,3902 94,8818 416,7654 0,0654 416,8 1,3905 94,8908 416,7523 -0,0477 416,9 1,3908 94,8998 416,7392 -0,1608 417 1,3912 94,9089 416,7261 -0,2739 Table 6 For easy calculation, in “Table 8” values are converted to “SI Unit” system H v [kJ/kmol] H l [kJ/kmol] V v [m 3 /kg] V l [m 3 /kg] P sat [bar] Propane [C 3 H 8 ] -6,838E+04 -8,302E+04 0,04612 0,00204 9,93464 n-Butane [C 4 H 10 ] 4,628E+04 2,555E+04 0,15429 0,00175 2,55657 Pseudo Mixing -2,985E+04 -4,654E+04 0,08939 0,00193 7,45561
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3 Table 7 Calculated values for LPG System Ws [kW] 1706,05 H A [kJ/kmol] -17627,07 Q [kJ/kmol] -28823,47 H 2 =H B [kJ/kmol] -46450,54 T B [ o C] -160,23 H 1 [kJ/kmol] -28729,683 T A [K] 416,7 V total [m 3 ] 2465,556 x v 0,00536 P 2 [bar] ~7,5 R(inner radius) [m] 8,38 t(wall thickness) [in] 1,525
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4 2.0 PROPERTY TABLE
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This note was uploaded on 02/24/2010 for the course CHEMENG che 220 taught by Professor Ferhanatalay during the Spring '09 term at Ege Üniversitesi.

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LPG by MSA - T.R. EGE UNIVERSITY Chemical Engineering...

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