SGR Construction in Tanzania - UPDATES

SGR Construction in Tanzania - UPDATES

Quinn said:
That is politics, they fool u with maintenance cost simply because they can not undo what it has been done so they have to convince the stakeholders (including the people) with lies so they can buy into their mistakes which can not be fixed soon....It does not bring any sense telling the world that u opted an SGR which is an old version technology simply because of maintenance cost and ignoring their efficiency, attractiveness and effect to the environment...And ts stupidity when you talk about low maintenance cost but high operating cost because u will be importing a huge volume of diesel to run ur trains and hence more foreign money will be gone..but Tanzania SGR will be using Electricity that is produced within the country and hence the money will be circulating within the country...Think big, stop protecting thieves
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You hit the right point
 
Annael said:
Dah!! hata kama wewe ni mpenda kenya basi kuna kitu unatakiwa ujifunze. Hebu soma hapa kidogo:-


  • Electric Locomotive vs Diesel Locomotive The major advantage of the electric locomotive engine over diesel engine is that electric engine uses a rather simple and straightforward technology. The electric engine pulls power directly from the power grid and requires only a transformer and a regulator to bring down the power to acceptable levels. Diesel engines on the other hand uses diesel to produce energy, which is then transformed into electricity, and then again into kinetic energy, making them only around 40 percent efficient for the diesel consumed.
  • Electric Locomotive v/s Diesel Locomotive Technology Electric engines are lightweight, constituting only motors and wheel axles, and have almost no moving parts. Diesel engines on the other hand have a large number of moving parts such as pistons, valves, turbines, and chains. Electric engines are therefore easier to maintain whereas the moving parts of a diesel engine require constant maintenance.
  • Electric Locomotive v/s Diesel Locomotive Speed The simple nature of the electric engine makes them efficient and powerful. Electric engines do not produce much heat and noise, meaning that most of the energy produces converts into foreword motion. Diesel engines, on the other hand waste generate much heat and noise, diverting the energy away from forward motion.
  • Electric Locomotive v/s Diesel Locomotive Commercial Consideration A major commercial consideration for railways to prefer electric locomotive engines to diesel locomotive engines is cost and availability of diesel. Diesel is an expensive non-renewable fuel source whereas electricity is a cheaper and infinite source of energy.
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Umempa darasa la bure, mpe na darasa la tofauti ya continous welded track (Tz) na jointed track (Ke). Inshort central corridor in enda kuwa na upper hand in every sphere

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Quinn said:
That is politics, they fool u with maintenance cost simply because they can not undo what it has been done so they have to convince the stakeholders (including the people) with lies so they can buy into their mistakes which can not be fixed soon....It does not bring any sense telling the world that u opted an SGR which is an old version technology simply because of maintenance cost and ignoring their efficiency, attractiveness and effect to the environment...And ts stupidity when you talk about low maintenance cost but high operating cost because u will be importing a huge volume of diesel to run ur trains and hence more foreign money will be gone..but Tanzania SGR will be using Electricity that is produced within the country and hence the money will be circulating within the country...Think big, stop protecting thieves
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So Mchina kajenga, anaiendesha na ataikarabati. Wakenya kazi yao nn?
 
Hoshea said:
Hehee, budaboss umesoma lkn hizo differences and how electric ones outweigh diesel ones.
Kweli u mzalendo

Halafu hao waganda uliowarefer wametoa information sijui kuhusu advantages za diesel locomotive, hao wanafanya lobbying tu mkuu, ni kama wale walikuwa wanataka pipe ipite kwenu, kenya inawalipa hao, hence lazima wavutie kwenu. Sasa tatizo linakuja, Museveni anasikiliza maushauri nasaha toka kwa wa Tz. Kazi mnayo awamu hii
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joto la jiwe said:
Hiyo maintenance costs unayopigia kelele unamaanisha nini kama umekubali kwamba running/operating cost ni kubwa kwa diesel train?

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maintenance cost iliokua inaongelewa na wa Ugnda ilikua ni kuhuru reli yenyewe... Specifically Chinese standard rail vs American standard... ndo hadi wakasema down time ya kufanya repair ya reli kwa mwaka mzima itakua ni siku saba kwa mwaka....

Mimi sikatai kwamba kuna advantage ya kutumia electric compaired to Diesel... essecially ninanchosema ni kwamba 1)reli ya Kenya (bila hizo diesel trains) ni superior kuliko reli ya Tz...
2) Na hata ikija hapo kwa electric traction vs diesel... electric traction inashinda only if all the variables are the same... lakini pale variables zitaanza ku-vary, electric might not better after all... e.g kukiwa hakuna mizigo diesel haitumiki lakini in tz, hata kukiwa hakuna mizigo bado tanesco watadai bill yao... vile vile kwa reli ya Kenya, diesel price itakua inaflactuate kwahivyo cheap or expensive italingana na bei ya mafuta ama kama serikali itaamua oil ya SGR haito tozwa ushuru..etc...
 
Hoshea said:
Hehee, budaboss umesoma lkn hizo differences and how electric ones outweigh diesel ones.
Kweli u mzalendo

Halafu hao waganda uliowarefer wametoa information sijui kuhusu advantages za diesel locomotive, hao wanafanya lobbying tu mkuu, ni kama wale walikuwa wanataka pipe ipite kwenu, kenya inawalipa hao, hence lazima wavutie kwenu. Sasa tatizo linakuja, Museveni anasikiliza maushauri nasaha toka kwa wa Tz. Kazi mnayo awamu hii
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joto la jiwe said:
Hiyo maintenance costs unayopigia kelele unamaanisha nini kama umekubali kwamba running/operating cost ni kubwa kwa diesel train?

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maintenance cost iliokua inaongelewa na wa Ugnda ilikua ni kuhusu reli yenyewe... (haikuwa ina include locomotive.) Specifically Chinese standard rail vs American standard... ndo hadi wakasema down time ya kufanya repair ya reli kwa mwaka mzima itakua ni siku saba kwa mwaka....

Mimi sikatai kwamba kuna advantage ya kutumia electric compaired to Diesel... essecially ninanchosema ni kwamba 1)reli ya Kenya (bila hizo diesel trains) ni superior kuliko reli ya Tz...
2) Na hata ikija hapo kwa electric traction vs diesel... electric traction inashinda only if all the variables are the same... lakini pale variables zitaanza ku-vary, electric might not better after all... e.g kukiwa hakuna mizigo diesel haitumiki lakini in tz, hata kukiwa hakuna mizigo bado tanesco watadai bill yao... vile vile kwa reli ya Kenya, diesel price itakua inaflactuate kwahivyo cheap or expensive italingana na bei ya mafuta ama kama serikali itaamua oil ya SGR haito tozwa ushuru..etc...
 
Kafrican said:
We unaongelea future ya mbali sana.... maximum performance ya reli zetu itakua ni kati ya year 40 -70 from now ambapo oil bado itakua king..... Na hio future hio unayoongelea ikifika, hata nyaya za stima zitakua ni alloy tofauti, kutakua pia na transformers tofauti ambazo itabidi hata nyinyi mfanye upgrage ya line nzima kana kwamba mnaanza upya....



Anyway, kuhusu hio ratio ya 1:2....



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This is the problem which freight electrification faces. While electrification would represent a lessening in fuel expenses, especially as the price of oil is expected to rise another 20-30% over the long-term, this is a fairly minor savings for the railroads. Take, for example, Union Pacific, the largest freight railroad in the United States. Fuel expenses in 2011 came to 3.5 billion dollars, about one quarter of total expenses. At 6.5 gallons to the mile (a back calculation from 480-ton miles to the gallon and typical 3100 ton train) and $3.25 per gallon for a typical train vs 80 kilowatts per train mile (2 Class 92 locomotives) and 12 cents per kilowatt (LA Metro's cost of electricity), the cost would be halved, from $21.125 per train-mile to $9.6 per train-mile, resulting in a total annual savings of $2 billion, trending upwards as the price of oil rises faster than the price of electricity. However, this is actually less than the $2.243 billion which Union Pacific charged in freight surcharges. So long as the freight railroads are permitted to charge fuel surcharges, they have no economic incentive to electrify.

Reason & Rail: Why Freight Will Never Electrify
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Kenya Rail is another KQ!
 
Tony254 said:
Sasa mnatuambia mambo ya mataluma ya zege na sisi tuko nazo tayari kutoka Mombasa hadi Nairobi. Sasa hakuna kitu mpya umetufunza hapo kama Wakenya, labda uposti kwenye forum za kitanzania pengine watajifunza jambo jipya.
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Angalia smoothness! Wacha kulinganisha almasi na upuuzi!
 
Kafrican said:
maintenance cost iliokua inaongelewa na wa Ugnda ilikua ni kuhusu reli yenyewe... (haikuwa ina include locomotive.) Specifically Chinese standard rail vs American standard... ndo hadi wakasema down time ya kufanya repair ya reli kwa mwaka mzima itakua ni siku saba kwa mwaka....

Mimi sikatai kwamba kuna advantage ya kutumia electric compaired to Diesel... essecially ninanchosema ni kwamba 1)reli ya Kenya (bila hizo diesel trains) ni superior kuliko reli ya Tz...
2) Na hata ikija hapo kwa electric traction vs diesel... electric traction inashinda only if all the variables are the same... lakini pale variables zitaanza ku-vary, electric might not better after all... e.g kukiwa hakuna mizigo diesel haitumiki lakini in tz, hata kukiwa hakuna mizigo bado tanesco watadai bill yao... vile vile kwa reli ya Kenya, diesel price itakua inaflactuate kwahivyo cheap or expensive italingana na bei ya mafuta ama kama serikali itaamua oil ya SGR haito tozwa ushuru..etc...
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Kaka acha kupiga ramli, sasa huna reference zaidi ya huyo Mganda?, Mbona serikali yenyewe ya Uganda ilichagua kujenga electric kutoka na gharama za uendeshaji kuwa chini kuliko diesel, ina maana hawakuliona hilo?. Unapotakiwa kutoa credible reference sidhani kama reference ya hear say inakubalika, hivi vitu vya maintainance cost ni vitu vya kitaalamu ambavyo vinakuwa available for public consumption, Kama umeshindwa kutoa original source yake, basi nyamaza hoja yako sio kweli na haina mashiko.

Railway yoyote inapimwa kwa vigezo vifuatavyo ili kupima ubora wake (Superiority)
1)Safety
2)Speed
3)Modernity
4)Capacity(axle size)
5)Electric Vs Diesel
6)Running costs

Katika maeneo yote hayo onyesha ni wapi Kenya inaweza kujilinganisha na Tanzania?


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joto la jiwe said:
Kaka acha kupiga ramli, sasa huna reference zaidi ya huyo Mganda?, Mbona serikali yenyewe ya Uganda ilichagua kujenga electric kutoka na gharama za uendeshaji kuwa chini kuliko diesel, ina maana hawakuliona hilo?. Unapotakiwa kutoa credible reference sidhani kama reference ya hear say inakubalika, hivi vitu vya maintainance cost ni vitu vya kitaalamu ambavyo vinakuwa available for public consumption, Kama umeshindwa kutoa original source yake, basi nyamaza hoja yako sio kweli na haina mashiko.

Railway yoyote inapimwa kwa vigezo vifuatavyo ili kupima ubora wake (Superiority)
1)Safety
2)Speed
3)Modernity
4)Capacity(axle size)
5)Electric Vs Diesel
6)Running costs

Katika maeneo yote hayo onyesha ni wapi Kenya inaweza kujilinganisha na Tanzania?


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Nieleweshe kwenye namba 3)
Modernity ni kigezo?
 
hydrogen said:
Nieleweshe kwenye namba 3)
Modernity ni kigezo?
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Train ya Tanzania itakuwa ya kisasa sana kiasi kwamba control center itakayo kuwa DSM itakuwa na uwezo wa kufuatilia uendeshaji wa dereva wa train yoyote ile popote train ilipo kujua kama anaendesha kufuatana na maelekezo yanayotolewa na signals na vibao vilivyowekwa, dereva ataonywa kama hafuati maelekezo kama akiendelea kufanya makosa, control center watamchagulia maximum speed ambayo hatoweza kuivuka hadi mwisho wa Safari yake, au wanaweza kuisimamisha hiyo train hapo ilipo isiendelee na Safari, watayafanya haya hata kama train inakaribia Kigali wao wakiwa DSM, hiyo ndio maana ya new modern.

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joto la jiwe said:
Train ya Tanzania itakuwa ya kisasa sana kiasi kwamba control center itakayo kuwa DSM itakuwa na uwezo wa kufuatilia uendeshaji wa dereva wa train yoyote ile popote train ilipo kujua kama anaendesha kufuatana na maelekezo yanayotolewa na signals na vibao vilivyowekwa, dereva ataonywa kama hafuati maelekezo kama akiendelea kufanya makosa, control center watamchagulia maximum speed ambayo hatoweza kuivuka hadi mwisho wa Safari yake, au wanaweza kuisimamisha hiyo train hapo ilipo isiendelee na Safari, watayafanya haya hata kama train inakaribia Kigali wao wakiwa DSM, hiyo ndio maana ya new modern.

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Mchina aliwaahidi sensors for Mombasa-Nairobi ila cha ajabu ng'ombe na wildlife wanagongwa kila siku.

 
Kafrican said:
maintenance cost iliokua inaongelewa na wa Ugnda ilikua ni kuhuru reli yenyewe... Specifically Chinese standard rail vs American standard... ndo hadi wakasema down time ya kufanya repair ya reli kwa mwaka mzima itakua ni siku saba kwa mwaka....

Mimi sikatai kwamba kuna advantage ya kutumia electric compaired to Diesel... essecially ninanchosema ni kwamba 1)reli ya Kenya (bila hizo diesel trains) ni superior kuliko reli ya Tz...
2) Na hata ikija hapo kwa electric traction vs diesel... electric traction inashinda only if all the variables are the same... lakini pale variables zitaanza ku-vary, electric might not better after all... e.g kukiwa hakuna mizigo diesel haitumiki lakini in tz, hata kukiwa hakuna mizigo bado tanesco watadai bill yao... vile vile kwa reli ya Kenya, diesel price itakua inaflactuate kwahivyo cheap or expensive italingana na bei ya mafuta ama kama serikali itaamua oil ya SGR haito tozwa ushuru..etc...
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Kwani iyo reli kusipokua na mzigo siabiria wapo. ..na tangu lini gharama za umeme zikawa juu kama disel?diesel ni gharama zaidi

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