indhan

jalati hui praakrutik gas

idhann (Fuel) aise padaarth hain, jo aakseejan ke saath sanyog kar kaafi ooshma utpann karte hain. 'indhan' sanskrut ki indh‌ dhaatu se nikla hai jiska arth hai - 'jalaana'. thos indhanon mein kaashth (lakdi), peet, lignaait evam koyala pramukh hain. petrolium, mitti ka tel tatha gaisoleen drav idhann hain. kolagais, bhaap-angaar-gas, draveekrut petrolium gas aur praakrutik gas aadi gaiseeya indhanon mein pramukh hain.

aajkal parmaanu oorja bhi shakti ke srot ke roop mein upayog ki jaati hai, isliye vikhandaneeya padaarthon (fissile materials) ko bhi ab indhan maana jaata hai.

vaigyaanik aur sainik kaaryon ke liye upayog mein laae jaanevaale raaketon mein, elkohaal, amoniya evam haaidrojan jaise anek raasaayanik yaugik bhi indhan ke roop mein prayukt hote hain. in padaarthon se oorja ki praapti teevr gati se hoti hai. vidyut‌ oorja ka prayog bhi ooshma ki praapti ke liye kiya jaata hai isliye ise bhi kabhi-kabhi indhanon mein sammilit kar liya jaata hai.

prakaar

  • raasaayanik indhan :
naabhikeeya indhan (CANDU reactor ke liye)
  • paramaanaveeya ya naabhikeeya indhan :
srot ke aadhaar par

indhan mukhyat: teen prakaar ke hote hain -

indhan ke vaishishtya

ikaai indhan se jitni oorja praapt hoti hai use us indhan ka 'kailori maan' kaha jaata hai. pramukh indhanon ke kailori maan neeche diye gaye hain.

indhan MJ/kg kcal/kg
praakrutik gas 53,6 12 800
eseetaleen 48,55 11 600
propen
petrol
byooten
46,0 11 000
diesel 42,7 10 200
indhan tel 40,2 9 600
enthresaait 34,7 8 300
kok 32,6 7 800
koyala gas 29,3 7 000
alkohal 95º par 28,2 6 740
lignaait 20,0 4 800
peet 19,7 4 700
bitumin koyala 16,7 4 000

inhein bhi dekhein