Head Deficits in Piping Essay

EXPERIMENT one particular – MIND LOSSES IN PIPES

Advantages:

In this test, the aim is usually to find the losses of water flow in a pipe system. You will find two types of losses. Initially the major loss which is caused by the the frictional effect of pipe. Second one is the minor loss which is caused by the turning points(corners) of pipes.

Device:

• • • • • • 90° mitter bend 90° elbow fold 90° large radius flex Sudden enlargement in water line diameter Abrupt contraction in pipe diameter A pump to supply water

Theoritical Concerns:

To determine the minimal losses in a water movement, some reduction coefficients are used. These rapport are detemined by trials. Km is definitely the coefficient that we have used. ℎ = ∗ ∗

hm gives the small loss head in metres.

PROCEDURE:

When the system is by stagnant location pump is usually run. Then this heights of manometers are measured. From then on to determine the launch, the time is definitely measured although a 10 lt of box is filling. Taking reading rapidly is very important, otherwise the levels of manometer may change in time. The measurement stage of manometer is showed in Figure 2 .

1

RESULTS:

Minimal loss comparison between theoretical and application values In the experiment minor loss among 5 and 6 can be 6mm. If we calculate the theoretical value: 22. your five = zero. 76 up to 29. 6 ℎ ℎ = 0. 15 0. 54.99 ℎ sama dengan 0. 15 ∗ sama dengan 0. 00257 2 ∗ 9. seventy eight =

sama dengan 2 . 5

The trial and error and the theoretical value would not fit. It can be an error of apparatus and wrong readings.

Minor damage at anxiete is 40-12=28 mm.

2

h1 h2 h3 h4 h5 h6 h7 h8 h9 h10 total reduction volume(lt) time(sec) Discharge(m3/s) G= bw h1-h2 h2-h3 h3-h4 h4-h5 h5-h6 h6-h7 h7-h8 h8-h9 h9-h10

1(mm) 2(mm) 3(mm) cross-section(mm) V1(m/s) v2(m/s) V3(m/s) 430. 00 460. 00 463. 00 twenty two. 50 zero. 58 0. 75 zero. 78 379. 00 385. 00 378. 00 twenty-two. 50 zero. 58 zero. 75 zero. 78 364. 00 365. 00 355. 00 22. 50 zero. 58 0. 75 zero. 78 340. 00 332. 00 315. 00 twenty-two. 50 zero. 58 0. 75 zero. 78 339. 00 331. 00 314. 00 twenty-two. 50 0. 58 0. 75 zero. 78 345. 00 340. 00 325. 00 29. 60 zero. 34 zero. 44 0. 45 345. 00 338. 00 325. 00 twenty nine. 60 0. 34 zero. 44 0. 45 320. 00 305. 00 285. 00 twenty two. 50 0. 58 0. 75 0. 78 319. 00 305. 00 285. 00 twenty two. 50 zero. 58 0. 75 zero. 78 307. 00 288. 00 266. 00 22. 50 zero. 58 0. 75 0. 78 123. 00 172. 00 197. 00 10. 00 twelve. 00 twelve. 00 initial measurement 2nd measurement 3rd measurement 43. 28 33. 35 thirty-two. 43 Q^2(lt^2/sec)= 0. 0533857681 0. 0899100675 0. 0950837065 0. 00023 0. 000300 0. 000308 9. 81 Km1 installment payments on your 96 0. 87 1 . 39 0. 06 0. 00 0. 06 zero. 70 Km2 2 . fifty nine 0. 69 1 . 16 0. goal 0. 21 years old 0. 00 0. fifty nine Km3 2 . 77 zero. 75 1 . 30 0. 03 0. 00 0. 00 zero. 62 Kavg 2 . seventy seven 0. 77 1 . twenty-eight 0. apr 0. '07 0. 02 0. 63 250, 00 200, 00 Loss(mm) a hundred and fifty, 00 95, 00 55, 00 zero, 00 zero, 04 zero, 05 zero, 06 zero, 07 Q^2(lt^2/sec) 0, '08 0, 2009 0, 15

Total loss increases with increasing discharge

Total Damage vs . Q^2

3

TOTAL HEAD(mm) 1 . 0000 447. 21 488. 99 1 ) 5000 447. 21 488. 99 1 ) 5001 396. 21 413. 99 2 . 0000 396. 21 413. 99 2 . 5000 396. 21 413. 99 installment payments on your 5001 381. 21 393. 99 a few. 0000 381. 21 393. 99 3. 5000 381. 21 393. 99 three or more. 5001 357. 21 fish hunter 360. 99 5. 0000 357. 21 360. 99 4. 5000 357. 21 fish hunter 360. 99 some. 5001 356. 21 359. 99 your five. 0000 356. 21 359. 99 a few. 5000 356. 21 359. 99 five. 5000 three hundred and fifty. 75 349. 68 six. 0000 350. 75 349. 68 6. 5000 350. 75 349. 68 six. 5000 350. 75 347. 68 six. 0000 three hundred and fifty. 75 347. 68 six. 5000 350. 75 347. 68 several. 5001 337. 21 333. 99 almost eight. 0000 337. 21 333. 99 almost 8. 5000 337. 21 333. 99 almost 8. 5001 336. 21 333. 99 9. 0000 336. 21 333. 99 9. 5000 336. 21 333. 99 9. 5001 324. 21 316. 99 15. 0000 324. 21 316. 99

five-hundred, 00

493. 65 493. 65 408. 65 408ps. 65 408ps. 65 385. 65 385. 65 385. 65 345. 65 345. 65 345. 65 344. 65 344. 65 344. 65 335. 23 335. 23 335. 23 335. 23 335. 23 335. 23 315. 65 315. 65 315. 65 315. 65 315. 65 315. 65 296. 65 296. 65

Initial Measurement

435.00, 00 Head(mm)

400, 00

350, 00

300, 00

250, 00 1 2 3 EG 4 HG 5 six 7 almost 8 9 12

500, 00 450, 00 Head(mm) 4 hundred, 00 350, 00 three hundred, 00 two hundred fifty, 00 one particular EG two HG

Second Measurement

three or more

4

a few

6

six

8

being unfaithful

10

browsing points

four

HYDRAULIC head(mm) 1 . 0000 430. 00 460. 00 1 . 5000 430. 00 460. 00 1 . 5001 379. 00 385. 00 2 . 0000 379. 00 385. 00 2 . 5000 379. 00 385. 00 2 . 5001 364. 00 365. 00 3. 0000 364. 00 365. 00 3. 5000 364. 00 365. 00 3. 5001 340. 00 332. 00 4. 0000 340. 00 332. 00 4. 5000...

piper first chronology Dissertation