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Table 2. MAN B&W 7S50MC-C alarm boundary values and optimum operating parameters of central coolingsystemCautionI - ALYMeasuring PointOptimum OperatingValuesCylinder Cooling Water Inlet 3.5 - 4.5ALARM VALUE UNIT SLD SHD2 Bar1.5 Bar LZ Cylinder Cooling Water Inlet 3.5 - 4.5 x Bar LI - AL57 º CCylinder Cooling Water Inlet 65 - 70I - AH 75 º CI - AH85 º CY Cylinder Cooling Water Outlet 78 - 8290 º C HZ 95 º C HI - AH Cylinder Cooling Water Outlet 1.0 - 1.5 2 BarI - AH30 º CM/E Preheating 35 - 50Z 25 º CI - AH Cooling Water T/C Outlet 75 - 80 85 º CI - AH LT Cooling Water 30 - 36 44 º CI - AH5.5 BarLT Cooling Water 2.0 - 4.5I - AL 1.0 BarI - AHI - ALYI - AHSea Water 1.9 - 2.5LTFW Air Cooler Inlet3.5 Bar1.0 Bar0.5 Bar L•Sea Water Cooling System 2.0 – 2.5 3.5 Bar•Central Cooling System 2.0 – 4.5 5.5 BarAL 1 BarI - AHILTFW Air Cooler Inlet•Sea Water Cooling System >10 - 32 40 º C•Central Cooling System >10 - 36 40 º CLTFW Air Cooler Outlet•Sea Water Cooling System >10 - 50 º C•Central Cooling System >10 - 63 º CA: ALARM Z: SHUT DOWN AL: LOW ALARMI: INDICATION Z: SLOW DOWN AH: HIGH ALARMH: HIGHL: LOWIf the working parameters in Figure 5 are out of optimal range, it can be observed that all the alarmsare active as given in Figure 7. Several alarm conditions can be seen related with the input data.The alarms enabled are colored in red as shown in Figure 7 and a warning symbol appears beneathit, denoting that the alarm is enabled. If none of the alarms are enabled (the entered values are parallel tothe ideal running values of the system), the trouble-free condition shown in Figure 8 will be monitored.As seen, the system has returned to the normal condition and this can be understood from the text of thealarm system written in black and from the symbols beneath the alarm.68
Figure 7. Failure mode selection screenApplication of expert diagnostic systemFigure 8. Trouble-free mode screenThe application executed in this study is for MAN B&W 7S50MC-C ship main engine central watercooling system. If the seawater pressure is entered below 1 bar which is maintained as the low pressurealarm level beforehand, the program alerts for the alarm as seen in Figure 9.69
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ESTONIAN MARITIME ACADEMYLATVIAN MA
Page 3 and 4:
CONTENTSRoberts GailītisASSESSMENT
Page 5 and 6:
1. The aim of research and methodol
Page 7 and 8:
Figure 2. Age structure of merchant
Page 9 and 10:
their maritime education, takes dec
Page 11 and 12:
Therefore it can be concluded that
Page 13 and 14:
MULTI ZONES HVAC SYSTEMS’ CONTROL
Page 15 and 16:
Figure 1. Multi-zone air-conditioni
Page 17 and 18: The control mechanism of the mathem
Page 19 and 20: Results and discussionThe temperatu
Page 21 and 22: PREDICTION OF EMISSIONS AND PERFORM
Page 23 and 24: In order to measure brake torque, t
Page 25 and 26: Predicted & Actual Values of SFC, g
Page 27 and 28: 8. Canakci, M., Ozsezen, A.N., Arca
Page 29 and 30: It is appropriate to systemize the
Page 31 and 32: Protestant ideology as an eventual
Page 33 and 34: thinking is innovative, responsible
Page 35 and 36: 17. Professoren-Protest gegen 10 Ja
Page 37 and 38: affected by competing ports [2]. Ne
Page 39 and 40: Tendencies of cargo flows volume an
Page 41 and 42: increase, inflation decreases, beca
Page 43 and 44: 4. Belova, J., Mickiene, R. Economi
Page 45 and 46: Description of researchIf volume co
Page 47 and 48: p p 1 10(11)C021Here, C1is a speed
Page 49 and 50: Figure 4. Dependence of pressure on
Page 51 and 52: EXPERIMENTAL INVESTIGATIONS OF IC D
Page 53 and 54: Figure 2. Prototype of variable geo
Page 55 and 56: 4. Experimental equipment and softw
Page 57 and 58: Figure 6. Dependence of main indice
Page 59 and 60: Figure 8. Dependence of main indice
Page 61 and 62: DEVELOPMENT AND APPLICATION OF SIMU
Page 63 and 64: program was developed regarding the
Page 65 and 66: F11: High sea water pressure alarmF
Page 67: In the main interface as given in F
Page 71 and 72: Figure 11. Causes of failure select
Page 73 and 74: 6. Xiaoyan, X., Min, H., Huayao, Z.
Page 75 and 76: Asia region is fastest developing n
Page 77 and 78: performance of design. Speed is the
Page 79 and 80: In summary, it can be said that wor
Page 81 and 82: ReferencesArticles1. Belova, J., Mi
Page 83 and 84: Grain cargo life cycleGrains are ca
Page 85 and 86: Maritime law is made and enforced b
Page 87 and 88: European and Asian countries, and e
Page 89 and 90: EVALUATION OF IMO SECOND GENERATION
Page 91 and 92: Sample vessel: a container shipA co
Page 93 and 94: Natural roll frequency in calm wate
Page 95 and 96: REQUIREMENTS FOR THE MANUSCRIPTSSUB
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