«интернаука» Научный журнал №28(157) Август 2020 г. Издается с ноября 2016 года Москва 2020 ббк 94 И73 Председатель редакционной коллегии: Еникеев Анатолий Анатольевич


Picture 1. Square coal briquette samples



Download 5,09 Mb.
Pdf ko'rish
bet75/90
Sana20.07.2022
Hajmi5,09 Mb.
#825233
1   ...   71   72   73   74   75   76   77   78   ...   90
Bog'liq
28(157)

 
Picture 1. Square coal briquette samples 
The aim of the research was to conduct the set of 
experiments to identify best ratio of compounds namely 
pure coal dust and biomass, to get eco-friendly bri-
quettes. During the experiment 3 diverse treatments 
with 4 repetitions, i.e. treatment 1 (80% pure coal: 20% 


Журнал «Интернаука» 
№ 28 (157), 2020 г. 
77 
biomass), treatment 2 (85% pure coal: 15% biomass), 
treatment 3 (90% pure coal: 10% biomass) conducted. 
As the factor of harm to the ecology was taken the ash 
content of the briquettes. As well as ash content, during 
the experiment other aspects of the coal briquette like 
ignition and burning time were measured too. 
The results show that the second ratio of com-
pounds has relatively better indicators of the harmless-
ness. Average ignition time for 4 experiments of the 2
nd
treatment was 22.32 seconds which is better to 2.5 
seconds than in treatment 3. 
Table 1.
The result of the briquette analysis on average ash content. 
Treatment 
number 
Ratio of compounds 
Average ignition 
time 
(seconds) 
Average length of 
burning 
(minutes) 
Average ash con-
tent 
(%) 
Coal dust portion 
(%) 
Biomass portion 
(%) 

80 
20 
18.3 
17.25 
32.7 

85 
15 
22.32 
19.54 
27.3 

90 
10 
24.8 
20.42 
37.5 
But the length of the burning time was relatively 
longer in treatment 3 than in treatment 2, furthermore 
samples of the treatment 1 have showed the least igni-
tion time equal to 18.3 seconds. Despite this factors, as 
the main index of eco-friendly fuel was taken ash con-
tent, the samples of the treatment 2 is considered as the 
best one, having ash content equal to 27.3%, which is 
5% lower than in treatment 1 and 10% lower than in 
treatment 3.
For the experiment on ash content samples of cubic 
form (2x2x2 sm) was taken. After drying period[3] (3-
10 days depending on room temperature and moisture 
degree, and process can be intensified by artificial dry-
ing methods) one sample from every treatment and the 
samples were placed above the grid and given the initial 
source of heat in order to identify ignition time. Sam-
ples’ ignition times varied from 15 to 25 seconds. In the 
second step of the experiment burning time of the bri-
quette samples were measured. Average burning length 
differed from 17 to 21 minutes. Last stage of the meas-
urement was to identify the ash content of the samples. 
It was accomplished by measuring the weight of the 
samples before and after burning coal briquettes. The 
less ash content the more eco-friendly briquettes are.

Download 5,09 Mb.

Do'stlaringiz bilan baham:
1   ...   71   72   73   74   75   76   77   78   ...   90




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©hozir.org 2024
ma'muriyatiga murojaat qiling

kiriting | ro'yxatdan o'tish
    Bosh sahifa
юртда тантана
Боғда битган
Бугун юртда
Эшитганлар жилманглар
Эшитмадим деманглар
битган бодомлар
Yangiariq tumani
qitish marakazi
Raqamli texnologiyalar
ilishida muhokamadan
tasdiqqa tavsiya
tavsiya etilgan
iqtisodiyot kafedrasi
steiermarkischen landesregierung
asarlaringizni yuboring
o'zingizning asarlaringizni
Iltimos faqat
faqat o'zingizning
steierm rkischen
landesregierung fachabteilung
rkischen landesregierung
hamshira loyihasi
loyihasi mavsum
faolyatining oqibatlari
asosiy adabiyotlar
fakulteti ahborot
ahborot havfsizligi
havfsizligi kafedrasi
fanidan bo’yicha
fakulteti iqtisodiyot
boshqaruv fakulteti
chiqarishda boshqaruv
ishlab chiqarishda
iqtisodiyot fakultet
multiservis tarmoqlari
fanidan asosiy
Uzbek fanidan
mavzulari potok
asosidagi multiservis
'aliyyil a'ziym
billahil 'aliyyil
illaa billahil
quvvata illaa
falah' deganida
Kompyuter savodxonligi
bo’yicha mustaqil
'alal falah'
Hayya 'alal
'alas soloh
Hayya 'alas
mavsum boyicha


yuklab olish