4"12-Z 1 - part - usaid
4"12-Z 1 - part - usaid
4"12-Z 1 - part - usaid
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5.2 Medium and Lon& Term Opportunities<br />
COMBUSTION IMPROVEMENT PROGRAM<br />
ThIS is a longer range energy conservatIon program requmng larger mvestments ofcapItal WhIch<br />
will accomplIsh larger fuel savmgs, improvements in efficIency and relIabIlity and lIfe extensIon<br />
of the bOIlers. It is beyond the scope of this audIt to provIde detaIls other than enumerate<br />
measures which could reduce mazut and gas co-firing by as much as 10-30% and possIbly<br />
achieve some reductIon of NO x , reduce S02 and <strong>part</strong>Iculate:<br />
• Improve burner desIgn and combustIon aIr flow configuration and temperature<br />
profiles.<br />
• Improve pulverized coal flow to minimize pulsatIon and excess oxygen vanatIons.<br />
• Repair boIler aIr leaks.<br />
• Develop new procedures for startup and shutdown cyclmg based on results of<br />
metallurgical testIng for creep and fatIgue lIfe.<br />
• Continue rehabilitation upgradmg of precIpItators (electrofilters).<br />
• Consider lIme or lImestone injection technology for reduction of S02, consIstent<br />
with fuel quality improvement program.<br />
• Upgrade mstrumentation for load control, fuel control, combustIon air and boiler<br />
pressure control.<br />
• Repair and/or replace (asbestos) msulatIOn on boilers.<br />
There are other studies which have been done or are being done, and It IS recommended that the<br />
results and recommendations be coordmated to prevent overlap or confllctmg tasks<br />
MEASURES FOR IMPROVEMENT OF RELIABILITY<br />
Additional equipment items WhICh were requested by the chIef engmeer and hIS specIalists WhICh<br />
are urgently needed for maintaimng reliability of the boilers and power plant are lIsted below:<br />
1.<br />
DESCRIPTION<br />
Infrared Temperature "Heat spy" used for locating<br />
sources of heat loss. Also useful for locatmg "hot<br />
spots" WhICh could lead to equipment faIlure, such as<br />
bearings, motor and generator wmdmgs, SWItchgear<br />
contacts, Iso-phase bus bar boltmg, etc.<br />
5906-01l02A/BURSHfYN/5/17/95 16<br />
$4,000<br />
COST