Msaada wa kimawazo (sola & bio gas)

mjumbe wa bwana · Apr 18, 2022

Wakuu naomba msaada wa kimawazo kwa wataalum wa sola na Bio gas.

Nahitaji ku pump maji ya kisima kwa kutumia moja ya power source mojawapo kati ya sola au bio gas ila hizi source ni DC ila Mimi nina water pump ya Ac.
Je ni sola ya ukubwa gani nitatumia ili niweze pump maji kwa masaa 4+ na garama yake ni kiasi fani?
Je ni bio gas ya ukubwa gani itanipa umeme wa kutumia masaa 4+ na garama zake zipoje ?
Naomba kuwasilisha

Mtanana · Apr 18, 2022

mjumbe wa bwana said:
Wakuu naomba msaada wa kimawazo kwa wataalum wa sola na Bio gas.

Nahitaji ku pump maji ya kisima kwa kutumia moja ya power source mojawapo kati ya sola au bio gas ila hizi source ni DC ila Mimi nina water pump ya Ac.
Je ni sola ya ukubwa gani nitatumia ili niweze pump maji kwa masaa 4+ na garama yake ni kiasi fani?
Je ni bio gas ya ukubwa gani itanipa umeme wa kutumia masaa 4+ na garama zake zipoje ?
Naomba kuwasilisha

Mimi Nina uzoefu si haba kwenye mambo ya sola .Ili ujue gharama zake soma matumizi ya umeme kwenye hiyo pump uliyonayo ili tuanzie hapo.( Kila pump imeandikwa kiwango cha matumizi ya umeme inayotumia na huwa katika vipimo vya Watt(W) au horse power(HP).

Mtanana · Apr 18, 2022

mjumbe wa bwana said:
Wakuu naomba msaada wa kimawazo kwa wataalum wa sola na Bio gas.

Nahitaji ku pump maji ya kisima kwa kutumia moja ya power source mojawapo kati ya sola au bio gas ila hizi source ni DC ila Mimi nina water pump ya Ac.
Je ni sola ya ukubwa gani nitatumia ili niweze pump maji kwa masaa 4+ na garama yake ni kiasi fani?
Je ni bio gas ya ukubwa gani itanipa umeme wa kutumia masaa 4+ na garama zake zipoje ?
Naomba kuwasilisha

Pia,Usisahau kusema urefu/kina cha kisima chako ni mita ngapi?

Dr Dre · Apr 18, 2022

Mtanana said:
Pia,Usisahau kusema urefu/kina cha kisima chako ni mita ngapi?

kisima kina matter vipi hapa mkuu .

Dr Dre · Apr 18, 2022

kupata hiyo AC power kwa ajili ya motor yako ni swala la kununua tu Inverter hivyo hilo sio swala gumu ,swala la kitaalam hapo ni calculations za kujua una load kiasi gani ili ujue utanunua Pannel za ukubwa gani , battery za ukubwa gani , inverter ya ukubwa gani (incase kama ukiamua kutumia solar) ,but choice ya solar au biogas ni swala la kujua wewe una resource zipi inhand na una bajeti kiasi gani.

mjumbe wa bwana · Apr 18, 2022

Mtanana said:
Mimi Nina uzoefu si haba kwenye mambo ya sola .Ili ujue gharama zake soma matumizi ya umeme kwenye hiyo pump uliyonayo ili tuanzie hapo.( Kila pump imeandikwa kiwango cha matumizi ya umeme inayotumia na huwa katika vipimo vya Watt(W) au horse power(HP).

Hio pump ni 1HP

mjumbe wa bwana · Apr 18, 2022

Mtanana said:
Pia,Usisahau kusema urefu/kina cha kisima chako ni mita ngapi?

Kisima ni mita 23 urefu wake

mjumbe wa bwana · Apr 18, 2022

Dr Dre said:
kupata hiyo AC power kwa ajili ya motor yako ni swala la kununua tu Inverter hivyo hilo sio swala gumu ,swala la kitaalam hapo ni calculations za kujua una load kiasi gani ili ujue utanunua Pannel za ukubwa gani , battery za ukubwa gani , inverter ya ukubwa gani (incase kama ukiamua kutumia solar) ,but choice ya solar au biogas ni swala la kujua wewe una resource zipi inhand na una bajeti kiasi gani.

Mmh hapo kwenye garama ndo nilitaka kupata ufafanuzi ili nijiangalie kama nitaweza au nikomae na TANESCO kama garama zitakuwa overweight kwangu.
Hapo nahitaji power ya kusukuma hio mashine 1HP kwa nasaa yaeiopungua 4

Mtanana · Apr 26, 2022

Dr Dre said:
kisima kina matter vipi hapa mkuu .

Kadri kina kinavyokuwa kirefu ndivyo nguvu kubwa hutumika kupandisha maji(ili yafike usawa wa ardhi au kwenye matanki) na hivyo kuhitaji Solar panels nyingi zitakazotoa hiyo nguvu inayotakiwa.

Basi Nenda · Apr 26, 2022

kuna jamaa humu alikua anatangaza water pump anauza yani ipo complete ni kufunga tu inavuta maji kwa solar panels zake yenyewe

Kobello · Apr 26, 2022

mjumbe wa bwana said:
Mmh hapo kwenye garama ndo nilitaka kupata ufafanuzi ili nijiangalie kama nitaweza au nikomae na TANESCO kama garama zitakuwa overweight kwangu.
Hapo nahitaji power ya kusukuma hio mashine 1HP kwa nasaa yaeiopungua 4

Tumia generator ya mafuta at least 2kva/au chukua 3kva kabisa.
Solar panels hapo utahitaji minimum 12 za 100W.

Mtanana · Apr 26, 2022

mjumbe wa bwana said:
Hio pump ni 1HP

1HP= 746W.Hivyo ili kupata panels za kutosha 746W. Utahitaji panel kadhaa( kutegemeana na ukubwa wa hizo panel).Mfano kama panel ni ya 100w.Basi 746/100= 7.4~ Panel 8 Panels.Au kama ukubwa wa panels zako ni 150 basi 746/150=5.Hivyo utahitaji panel 5 za 150w.kila moja.
Kwa sasa bei ya solar panel sokoni ni kati ya Tsh 1000 na Tsh 1500 kwa kila Watt moja.

Mtanana · Apr 26, 2022

mjumbe wa bwana said:
Hio pump ni 1HP

Lakini ili pump yako ifanye kazi muda wote kuanzia asubuhi mpaka jioni( zingatia muda jua linapotoka na kuzama) inabidi uchukue Mara mbili ya idadi unayopata hapo juu.Yaani kama ni za 100W.zitakuwa 12 au kama ni za 150W. zitakuwa 10.

Kobello · Apr 26, 2022

Mtanana said:
1HP= 746W.Hivyo ili kupata panels za kutosha 746W. Utahitaji panel kadhaa( kutegemeana na ukubwa wa hizo panel).Mfano kama panel ni ya 100w.Basi 746/100= 7.4~ Panel 8 Panels.Au kama ukubwa wa panels zako ni 150 basi 746/150=5.Hivyo utahitaji panel 5 za 150w.kila moja.
Kwa sasa bei ya solar panel sokoni ni kati ya Tsh 1000 na Tsh 1500 kwa kila Watt moja.

Unahitaji twice to three times total wattage kuanzisha motor ya 1HP for at least two seconds.
750W hazitoshi ku-kickstart motor ya 1HP, hapo pia hujajumlisha loss kwenye wiring, motor yenyewe na inverter (like 10% - 20%) kwa hiyo at least awe na 2000W mkononi daily at any time iwepo kwenye batterry.

Chenchele · Apr 27, 2022

Tumia solar inverter VFD Ambayo it a vary speed ya pump depending on sun intensity from 300w to 1200w hence not necessarily Kua na masolar mengi and no battery at all.

Chenchele · Apr 27, 2022

Kobello said:
Unahitaji twice to three times total wattage kuanzisha motor ya 1HP for at least two seconds.
750W hazitoshi ku-kickstart motor ya 1HP, hapo pia hujajumlisha loss kwenye wiring, motor yenyewe na inverter (like 10% - 20%) kwa hiyo at least awe na 2000W mkononi daily at any time iwepo kwenye batterry.

Solar VFD inaweza kurun even from 300watts which also varies flowrate depending on solar irradiance. I have played with this systems for 5 years now. Just V/f speed control technique.

Ok9 · Apr 27, 2022

Sola ni gharama Sana kwwnye installation hapo si Chin ya 2m bado uhakika wa jua.
Kwan umeme una cost ngap?

Kobello · Apr 27, 2022

Chenchele said:
Solar VFD inaweza kurun even from 300watts which also varies flowrate depending on solar irradiance. I have played with this systems for 5 years now. Just V/f speed control technique.

What about starting.
Running is not a problem, what will be the starting current and how are you going to start a 1hp motor with 300W.
Please explain to me.

Smart911 · Apr 27, 2022

Natumae mleta mada ulipata muongozo...

Chenchele · Apr 28, 2022

Kobello said:
What about starting.
Running is not a problem, what will be the starting current and how are you going to start a 1hp motor with 300W.
Please explain to me.

VFD prior to controlling speed of induction motor it can also be used to provide soft starting at lower and safe current.

Power = torque X speed
When an IM starts at rated power, it attempt to draw very high current to provide enough torque to overcome inertia(eqn above)

When you provide lower power than rated say 300w to the motor (say at rated voltage 230/400AC and 50Hz), the motor won't start.

A VFD(variable frequency drive) acts as a soft-starter by providing a reduced voltage (not 230) and frequency (not 50Hz) to the motor (V/f ratio control: 230/50 = constant to any set values ). By this way, reducing voltage a current is also reduced so does the output speed and torque.

It's a common technique in induction motor starting & speed control.

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