Gimba Da Turanci Na Kafin Yadda Ake Sana | Abubuwa da Fa'idodi

Fluidization yana ake amfani da shi wajen kare kayan kwalba da zuba a kowace muhimmanci, don samun karyarwa. fluidized bed za a iya bayyana cewa ita ce kofin kaya da ke tafi wasu kamar kasa. Ana yi a matsayin yanayin da ake kare zuba a kan kofin kaya da ke tsakiyar hanyoyi, idan ake kara zuba daga faduwar zuwa kofin kaya da ke tsakiyar hanyoyi a tsari mai gaba.

Idan ake sanya tsari na zuba, kofin kaya ya fi haɗa da juyin kasa da ke kusa, wanda ya fi ƙarin karfi kamar hanyoyi a kan kasa mai gaba, kuma wannan masu aiki ake canza da sunan fluidized bed combustion.

Tsari na zuba, wanda ke kare fluidization, an samun shi a kan abubuwan da suka fiye, kamar:

1. Girman kaya.

2. Yawan zuba da kaya.

Saboda haka, ana duba waɗannan abubuwa a lokacin da ake yi aikin tsari na zuba don samun karyarwa da ake bukata. A fluidized bed combustion, ake kare kasa ta hanyar kasa mai karfi, wanda ya ba da kyau a kan girman kasa. Yawancin advantage of fluidized bed combustion system shine da ake iya amfani da kaya da ke sauran kaya, kaya da ke sauran kaya, kaya da ke sauran kaya, kaya da ke sauran kaya, kaya da ke sauran kaya, da sauransu.

A fluidized furnace take da kofin kasa da ake kara da wurin za a iya magance zuba. Kaya, kaya, da kaya da ke sauran kaya suna kare a kan kofin kasa, kuma ake kara zuba daga faduwar zuwa kofin kasa, a kan kofin kasa.

Idan ake sanya tsari na zuba, za a iya samun rike da ake kara zuba a kan kofin kasa, kuma wannan tsari na zuba shine minimum fluidizing velocity.

Idan ake sanya tsari na zuba, kofin kasa ya fi haɗa da juyin kasa da ke kusa, wanda ya fi ƙarin karfi kamar hanyoyi a kan kasa mai gaba. Wannan masu aiki ake canza da sunan fluidized bed combustion. Tubonin ya ba da cikakken bayanin fluidized bed combustion a nan:

Tubonin ya ba da cikakken bayanin fluidized bed combustion a nan. Evaporator tubes of boiler suna kare a kan fluidized bed, kuma tubonin, wadanda suke da adadin kaya, suke samun ƙarin karfi. Saboda haka, ƙarin aikinsu ya ci, kuma ake samun karyarwa da ƙarin karfi.

Types of Fluidized Bed Combustion

Fluidized bed combustion (FBC) ana iya ƙunshi 2 variants, kamar:

1. Vertical type FBC: Wadannan ana iya amfani da su a cikin plant da ke kusa, kuma suke iya samun kaya da 6 tonnes per hour baya. Tsarin na tsari ya ci ƙarin aikin steam boiler, kuma suke da kyau a cikin plant da ke sauran kaya.

2. Horizontal type FBC: Wadannan suke ƙunshi 10 times in capacity when compared to vertical type fluidized bed combustion. Suke iya samun kaya da 60 tonnes per hour, kuma suke kare a kan tubonin. Ƙarin aikin horizontal type Fluidized boilers, kuma ƙarin karfin, ya ba su da kyau a cikin coal fired thermal power generating station.

Advantages and Dis-advantages of Fluidized Bed Combustion

FBC ana iya amfani da shi a cikin power stations daban-daban a duniya, saboda abubuwan da suke da su. Wasu daga cikinsu shine:

1. Ƙarin karfi.

2. Akwai aikin karya, don samun cement.

3. Kadan da ake kara da erection period.

4. Fully automated and thus ensures safe operation, even at extreme temperatures.

5. Efficient operation at temperatures down to 150oC (i.e. well below the ash fusion temperature).

6. Reduced coal crushing etc. (pulverised coal is not a necessity here).

7. The system can respond rapidly to changes in load demand, due to quick establishment of thermal equilibrium between air and fuel particles in the bed.

8. The operation of fluidized bed furnace at lower temperature helps in reducing air pollution. The low temperature operation also reduces the formation of nitrogen oxides. By adding either dolomite (a calcium-magnesium carbonate) or lime stone (calcium carbonate) to the furnace the discharge of sulphur oxides to the atmosphere can also be reduced if desired.

In view of all these advantages of fluidized bed combustion above, where fluidized bed combustion emerges as the best alternative available today, still the major drawback of this system is that the fan power has to be maintained at a considerably high value, since the air has to be supplied continuously at a very high pressure for supporting the bed. This in turn increases the operating cost of the auxiliary units of the plant. But it is more than compensated by the high values of efficiency that FBC provides.

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