Hisobot daftari jizzax-20 1-laboratoriya ishi

O’ZBEKISTON RESPUBLIKASI OLIY VA O’RTA MAXSUS TA’LIM VAZIRLIGI
JIZZAX POLITEXNIKA INSTITUTI
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_________________ guruhi talabasi

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ning
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Issiqlik texnikasi va ichki yonuv dvigateli
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fanidan laboratoriya ishlarini

HISOBOT DAFTARI

Jizzax-20____

1-LABORATORIYa ISHI.


Ichki yonuv dvigatellarini sinashda ishlatiladigan jihozlar va asboblar

Laboratoriya ishini bajarish sanasi: _________________________

Sinash jarayoni davomida o’lchanadigan asosiy ko’rsatkichlar

№	Ko’rsatkichlarni nomlanishi	SHartli belgilanishi (yangicha)	Xisoblab to’iladigan kursatkichlar	SI o’lchov birligida
1	2	3	4	5
1.	Burovchi moment	Me (Ti q)		Nm
2.	Samarali quvvat	Ne (Re)		kVt
3.	Tirsakli valning aylanishlar chastotasi	n (n)		min^-1
4.	Yonilg’i sarfi (suyuq)	Gyo (V)		kg/soat
5.	Yonilg’i sarfi (gaz)	G g (Vg)		m^3/soat
6.	Havo sarfi	G x (Vair)		m^3/soat
7.	Atrof muhit bosimi	R (R)		k’a
8.	Atrof muhit harorati	To (To)		K
9.	Dvigatelga kirayotgan havoning harorati	Td (Td)		K
10.	Quruq termometrning harorati	Tq (Tq)		K
11.	Ho’l termometrning harorati	Tho’l (Tho’l)		K
12.	Ishlatilgan gazlarning harorati	Tig (Tig)		K
13.	Sovitish suyuqligining harorati	Tsov (Tsov)		K
14.	Dvigateldagi moyning harorati	Tm (Tm)		K
15.	CHiqarish kollektoridagi bosim	Rchiq (Rchiq)		k’a
16.	Dvigatel moyininbosimi	Rm (Rm)		M’a
17.	Yonilg’ining solishtirma sarfi (suyuq)	gyo (v)		kg/kVt×s
18.	Yonilg’ining solishtirma sarfi (gaz)	gg (vg)		m^3/kVt×s
19.	Kiritish kanalidagi siyraklanish	dRk (drk)		k’a
20.	O’t oldirishning yonilg’ini ‘urkashning ilgarilatish burchagi	q’ur (q)		grad.TVB
21.	Havoning ortiqlik koeffitsienti	a (a)		-
22.	O’rtacha samarali bosim	Re (re)		M’a
23.	To’ldirish koeffitsienti	hv (Fs)		-
24.	Ishlatilgan gazlarda uglerod oksidining miqdori	SO (SO)		mg/m^3

Ichki yonuv dvigatellarini sinashda yuklanish tormoz deb Dvigatel validan olingan va tashqi qarshilikdan (tormozlashdan) so’ndiriladigan effektiv quvvat (N_e),

Birinchi tezlik uchun
=
Ikkinchi tezlik uchun
=
Uchinchi tezlik uchun
=

To’rtinchi tezlik uchun

=

Suyuq yoqilg’ini sarfi

(6) ,

Dvigatelning aralashma tarkibi bo’yicha rostlash tavsifi

№	Tajriba davomiyligi ,sek	Tajriba davomida sarflangan havo, Gx, m^3	Tajriba davomida arflangan yonilg’i, Ge, gr	Valning aylanishlar Soni n, min^-1	Dvigatelning burovchi momenti, Mbr, Nm	Havoning zichligi, x, kg/m^3	Dvigatelning quvvati Ne, kVt	Havoning ortiklik koeffitsienti, 	Havoning soatiga sarfi Gx, kg/s	Yonilgining soatiga sarfi Ge, kg/soat	Yonilgining solishtirma sarfi, ge, gr/kVt*soat
1	33		150	2200		1,15
2	35
3	37
4	40
5	48
6	56
7	58.2

Yonilg’i sarfini hajmiy usulda o’lchash sxemasi chizilsin
Suyuq yonilg’i sarfini o’lchashning tarozili usulining sxemasi chizilsin
Suyuq (gazli) yonilg’ining solishtirma sarfi kg/kVt.s (m³/kVt.s)

Havoning ortiqchalik koeffitsienti:



Lo = 14,9 kg/kg benzin uchun;
Lo = 14,3 kg/kg dizel yonilg’isi uchun;
Lo = 9,53 m³/ m³ metan gazi uchun.
Dvigatelning to’ldirish koeffitsienti:

Xulosa______________________________________________

^{(Talabaning laboratoriya ishdan olgan bilim va ko’nikmalarini qisqacha izohi)}
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________
Laboratriya ishini nazariy qismini to’shirish ___________________
(ball)

Laboratoriya ishini tajriba qismini to’shirish __________________

(ball)

Talaba ___________ _________________________________________________

(imzo) (Talabaning familiyasi, ismi sharifi)

O’qituvchi _________ ________________________________________

(imzo) (O’qituvchining familiyasi, ismi sharifi)
2-LABORATORIYa ISHI
Ichki yonuv dvigatellarining rostlash tavsifi
Laboratoriya ishini bajarish sanasi: __________________________

Qayd qilingan va hisoblash natijasida aniqlangan ko’rsatgichlar jadval

№	Tajriba davomiyligi ,sek	Tajriba davomida sarflangan havo, Gx, m^3	Tajriba davomida arflangan yonilg’i, Ge, gr	Valning aylanishlar Soni n, min^-1	Dvigatelning burovchi momenti, Mbr, Nm	Havoning zichligi, x, kg/m^3	Dvigatelning quvvati Ne, kVt	Havoning ortiklik koeffitsienti, 	Havoning soatiga sarfi Gx, kg/s	Yonilgining soatiga sarfi Ge, kg/soat	Yonilgining solishtirma sarfi, ge, gr/kVt*soat
1
2
3
4
5
6
7

D vigatelning quvvati:

Havoning soatiga sarfi:

Havoning zichligi:

Yonilg’ining soatiga sarfi:

Havoning ortiqlik koeffitsienti:


S=0,855 benzindagi uglerodning miqdori;
=0,145 benzindagi vodorodning miqdori;
=0 benzinning tarkibida kislorod bo’lmaydi

Havoning ortiqlik koeffitsientining dvigatelning quvvati va yoqilg’ini solishtirma sarfiga nisbatan grafigini tuzing.

Yonilg’ining solishtirma sarfi:

Xulosa______________________________________________
^{(Talabaning laboratoriya ishdan olgan bilim va ko’nikmalarini qisqacha izohi)}
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
_____________________________________________________

Laboratriya ishini nazariy qismini to’shirish ___________________

(ball)

Laboratoriya ishini tajriba qismini to’shirish __________________

(ball)

Talaba ___________ _________________________________________________

(imzo) (Talabaning familiyasi, ismi sharifi)

O’qituvchi _________ ________________________________________

(imzo) (O’qituvchining familiyasi, ismi sharifi)