Page 59 - ECLECTIC MARCH-2022 INSIDE PAGES_p2.indd
P. 59
otherwise necessary rectification to be done before Dynamic viscosity � � �
the internal leakage passage propagates through � � �
steam cutting.
d) Temperature readings should be taken quarterly to Thermal Conductivity � � � � �
get a pattern of the valve performance. � � � � �
Kinematic Viscosity �
8. CONCLUSION Thermal Diffusivity � �
The standardization of check points has been done based on Thermal expansion coefficient � �
observations at BBGS for last 3 years. Gradual improvement
cadnrabine voablsveersv(eFdiginurneu2m) absewr oefhraevneewbeedndarabilne vtoalsvteasnd(Fairgd-i2ze) as �
wtehehacvheecbkeepnoianbtsleovtoerstthanedyaeradrisz.e the check points over the FSiplmecTifiecmhpeeartature �
years.
Cp = 1.045356 * 103 – 3.161783 * 10–1 T + 7.083814 *
10–4T2 – 2.705209 * 10–7 T3
TG Aux. HED Vv Renewal History UDSyEnRamINicTEviRscFoAsCitEy & SAMPLE CALCULATION:
Number of Valves 25 Sμam= p2l.e28a7n9a7l3ys*is10f–o6r+ t6h.e25s9t7e9am3 * T10ra–8pT2–53B.1031139-#516 *u1si0n–g11 the
proposed MS. ExTc2e+l 82.10510338b*as1e0d–15Tto3 ol was carried out.
20 FTohlelormwainlgCsoanrdeuthcetivsictryeenshots of the user’s page:
15
10 k = –4.937787 * 10–4 + 1.018087 * 10–4T – 4.627937 *
10–8T2 + 1.250603 * 10–11T3
5
0 Unit‐1 Unit‐2 Unit‐3 Total Kinematic Viscosity - P
11 8 4 23 U
18‐19 1 7 5 13
19‐20 2 2 1 5 Thermal Diffusivity D -
20‐21 U * Cp
Thermal expansion coefficient E 1
FigFuigre-33: Tf
Conventional thermography of valve bonnet temperature Film Temperature Tf Tamb Tsur f ace
mCeoasnuvreenmteionnt abletihnegrmthoegeraaspiehsytoafnvdalsviembpolensntewttaeymcpanerabteuuresed 2
asmaeapsruerleimmineanrty bscerienegnintghefoer aisnideisctataionnd ofsimpopslseibstle wisasyues USER INTERFACE & SAMPLE
wmincoiavtafkhenispntigtboghesaesftioiuborvsnleeavldvaaiesflavtssesu.ereaUsrtehpsnawereteiwtlihpoamrfleitlnhiipsmaerroiytnphvaoaesrsclyvermeedseso.cnsmrtUienoesegdnefeiffneloogcrftfiovifpnorerdroiatcphdnaooedtscrioeoiscdnuiogoshnt CALCULATION
efmficoidenetl afoprprtohaocrhoeudgahs ipnevreosutirgoabtisoenrvafttieonr .that preliminary
Sample analysis for the steam Trap 25B013-#1 using the
screening for decision making for valve renewal is the proposed MS. Excel 2013 based tool was carried out.
most effective and c9o. st FeUffiTcUieRntEaSpTpUroDaYched as per our Followings are the screenshots of the user’s page:
sTohopibhssiestrsivtcuaadtteiyodn.cteacnhnifquurtehserlikbee analyzed through modern
flow simulation considering Fig-4.1
kinetic energy losses in S.F.E.E or other techniques like
iancFcouuUrsrtTeicdU. eRmEissiSonTUfoDr Ymore accurate results of the losses
This study can further be analyzed through modern
sophisticated techniques like flow simulation considering
kinetic energy losses in S.F.E.E or other techniques like
acoustic emission for more accurate results of the losses
incurred.
APPENDIX
Kroger [4] gives the equations to calculate the thermo
physical properties of dry air from 220K TO 380K at
standard atmospheric pressure. These equations are
listed below:
Density of air p Pa Figure 4.1:
287.085 T
59
the internal leakage passage propagates through � � �
steam cutting.
d) Temperature readings should be taken quarterly to Thermal Conductivity � � � � �
get a pattern of the valve performance. � � � � �
Kinematic Viscosity �
8. CONCLUSION Thermal Diffusivity � �
The standardization of check points has been done based on Thermal expansion coefficient � �
observations at BBGS for last 3 years. Gradual improvement
cadnrabine voablsveersv(eFdiginurneu2m) absewr oefhraevneewbeedndarabilne vtoalsvteasnd(Fairgd-i2ze) as �
wtehehacvheecbkeepnoianbtsleovtoerstthanedyaeradrisz.e the check points over the FSiplmecTifiecmhpeeartature �
years.
Cp = 1.045356 * 103 – 3.161783 * 10–1 T + 7.083814 *
10–4T2 – 2.705209 * 10–7 T3
TG Aux. HED Vv Renewal History UDSyEnRamINicTEviRscFoAsCitEy & SAMPLE CALCULATION:
Number of Valves 25 Sμam= p2l.e28a7n9a7l3ys*is10f–o6r+ t6h.e25s9t7e9am3 * T10ra–8pT2–53B.1031139-#516 *u1si0n–g11 the
proposed MS. ExTc2e+l 82.10510338b*as1e0d–15Tto3 ol was carried out.
20 FTohlelormwainlgCsoanrdeuthcetivsictryeenshots of the user’s page:
15
10 k = –4.937787 * 10–4 + 1.018087 * 10–4T – 4.627937 *
10–8T2 + 1.250603 * 10–11T3
5
0 Unit‐1 Unit‐2 Unit‐3 Total Kinematic Viscosity - P
11 8 4 23 U
18‐19 1 7 5 13
19‐20 2 2 1 5 Thermal Diffusivity D -
20‐21 U * Cp
Thermal expansion coefficient E 1
FigFuigre-33: Tf
Conventional thermography of valve bonnet temperature Film Temperature Tf Tamb Tsur f ace
mCeoasnuvreenmteionnt abletihnegrmthoegeraaspiehsytoafnvdalsviembpolensntewttaeymcpanerabteuuresed 2
asmaeapsruerleimmineanrty bscerienegnintghefoer aisnideisctataionnd ofsimpopslseibstle wisasyues USER INTERFACE & SAMPLE
wmincoiavtafkhenispntigtboghesaesftioiuborvsnleeavldvaaiesflavtssesu.ereaUsrtehpsnawereteiwtlihpoamrfleitlnhiipsmaerroiytnphvaoaesrsclyvermeedseso.cnsmrtUienoesegdnefeiffneloogcrftfiovifpnorerdroiatcphdnaooedtscrioeoiscdnuiogoshnt CALCULATION
efmficoidenetl afoprprtohaocrhoeudgahs ipnevreosutirgoabtisoenrvafttieonr .that preliminary
Sample analysis for the steam Trap 25B013-#1 using the
screening for decision making for valve renewal is the proposed MS. Excel 2013 based tool was carried out.
most effective and c9o. st FeUffiTcUieRntEaSpTpUroDaYched as per our Followings are the screenshots of the user’s page:
sTohopibhssiestrsivtcuaadtteiyodn.cteacnhnifquurtehserlikbee analyzed through modern
flow simulation considering Fig-4.1
kinetic energy losses in S.F.E.E or other techniques like
iancFcouuUrsrtTeicdU. eRmEissiSonTUfoDr Ymore accurate results of the losses
This study can further be analyzed through modern
sophisticated techniques like flow simulation considering
kinetic energy losses in S.F.E.E or other techniques like
acoustic emission for more accurate results of the losses
incurred.
APPENDIX
Kroger [4] gives the equations to calculate the thermo
physical properties of dry air from 220K TO 380K at
standard atmospheric pressure. These equations are
listed below:
Density of air p Pa Figure 4.1:
287.085 T
59
