Amatangelo, A.

Bagge, G.

Herbich, J. B.

Miller, R. E.

English

Lehigh University: Lehigh Preserve

Lehigh University
Lehigh Preserve
Fritz Laboratory Reports Civil and Environmental Engineering
1966
Gas removal system associated with dredge pump:
Phase C status report no. 11, May 1966
A. Amatangelo
G. Bagge
R. E. Miller
J. B. Herbich
Follow this and additional works at: http://preserve.lehigh.edu/engr-civil-environmental-fritz-lab-
reports
This Technical Report is brought to you for free and open access by the Civil and Environmental Engineering at Lehigh Preserve. It has been accepted
for inclusion in Fritz Laboratory Reports by an authorized administrator of Lehigh Preserve. For more information, please contact
preserve@lehigh.edu.
Recommended Citation
Amatangelo, A.; Bagge, G.; Miller, R. E.; and Herbich, J. B., " Gas removal system associated with dredge pump: Phase C status report
no. 11, May 1966" (1966). Fritz Laboratory Reports. Paper 217.
http://preserve.lehigh.edu/engr-civil-environmental-fritz-lab-reports/217
GAS REMOVAL SYSTEM ASSOCIATED
WITH DREDGE PUMP: PHASE C
Status' Report No. 11
Prepared by
Alfred Amatangelo
Gunnar Bagg~
Robert E. Miller
and
John B. Herbich
Prepared for
U. S. Army Engineers District, Philadelphia
Corps of Engineers
Philadelphia, Pennsylvania
June, 1966
Bethlehem, Pennsylvania
Fritz Engineering Laboratory Report No.310.14
CIVIL. ENGINEERING- DEPARTMENT
FRITZ ENGINEERING LABORATORY
HYDRAULIC,',AND SANITARY' ENGI~EERING DIVISION
. GA.S REMOVAL, SYSTEM, ASSOCIATED
WITH; DREDGE PUMP: PHASE·C
Status Report No. 11
Prepared by
, Alfred Amatangelo
GuntJ,ar'Bagge
Rober t", E. Mi ller
and
John.B. Herbich
.Prepared, for
U., S., ArmY,'Engi,neers' District, Phi lade Iphia
Corps of. Engineers
Philad~lphia, PenQ.s-ylvania
June,., 1966
Bethlehem, PentJ,sylvania
Frit~.Engineering Laborator~CReport·No.. 310.14
iPREFACE
The following status report summarizes the progress made under
Phase' C. of the project duri ng the period February 1, 1966 to' May 31, 1966,
. at the Hydraulic and ,Sanitary: Engineering. Division of the Fritz Engineering
Laboratory, under the terms of, contract No. DA-36-109-ClVENG-64-72 0 The
progress on the study_ was reported in ten statu.s- reports dated February_ 1964,
,April 1964, October 1964, December 1964, January 1965,. June 1965, August 1965,
October 1965" December 1965, and February 1966 0 (Fritz Engineering Labo-
(1)* (2) ,(3) (4)
ratory Report-No. 310.1 ,No. 310~2 ,.No.310.4 ,.No. 310.5 ,
31006 (5) ~ (6) 1 (7) (10) (11)No. ., No o 310 0 8 ,No., 3 0.9 ,. No. 310.10 ~ NOe 310011 ,
Noo 310. 13 (13) 0
Phase A and Phase B of the project were completed a~d sum-
marized in Frit~ Engineering Laboratory Report No. 310.3(8)(June 1964),
and No. 310.7(9)(February 1965) respectively.
Dr. John B o Herbich is the project director, Mr. A. Amatangelo is
the project supervisor and are assisted by Mr. Go Bagge and Mr. R. Miller,
Research. Assistants. Dr •. L., S •. Beedle is,Acting Head 0f the Department
of Civil Engi~eering.
* Numbers in, parenthesis refer to references on pages 6 and 7 I)
TABLE OF:' CONTENTS
P;reface
'. Tab Ie of' Contents
I Experimental Investigation
II Equipment Ordered
Figures
References
ii
1
2
3-5
6-7
ii
1.
I .. Experimental Investigation
1. ,A series of tests were conducted to determine if one dis-
charge valve setting could be used fo~ the entire test series (Reference
and letter dated- April 4, 1966)0 It was found that with one discharge
valve setting. and with the' maximum flow rate of 1,000 gpID, the flow, can
only be varied between 900 gpm an.d 1000 gpm ,with orifices if cavitation
is not allowed. Since this only represents narrow flow range~ it is
necessary, to regulate the flow with. a limited manipulation of the discbarge
valve. With less than one turn of the discharge ~alve the flow range
cou~d be varied from.385 gpm with a 2,~" orifice to 1000 gpm with a rounded
inlet.
2 0 From visual observations it appears that the optimum_position
for the gas removal equipment is as close to:the suctim elbow as possible.
It is recognized that interference with the prototype suction.line valve
will restrict the location•. As scaled from prototype drawings the' valve
(flange to· flange) will take 6~" of the suction. line measured from-the
...t..
elbow flange 0 ~\
3. It is thought that the' additional time required for tests
at speeds other than 1440 rpm.is not warranted. Instead, a few, data
points for other, speeds will be- obtained and a check_made to see if they
fit existing dimensionless plots of head versus capacity.
4 0 It was observed during the testing that a certain amou~t
of hysteresis occurred near the air: flow which caused the head to drop
off. In future tests this phenomenon will be" investigated.
5~ Three plots (Figure 1, 2,.3) of test data are included.
It can. be noted from'.Figure 2 that the flow. begins to· falloff when the
air volume reaches· four to five percent of water, flow o
* ·:See Reference (9), Figure 4, page 30
II. Equipment. Ordered
2.
1. It was decided not· to- scale the height of the prototype
accumulator. The' accumulator will be 21 inches- from pipe centerlin.e
instead of 9-3/4 inches. ,This will.allow us to, investigate- 0ther
positions for the- accumulator and still keep level-trol. operation.
2. The fol10wing equipment was o~dered:
a. Vacuum, Pump, 2 horsepower, single stage reciprocating
t.ype
b. Level ~~ol"Fisher:Type 2500-249
c •. Dia.phragm.. Actuator ,- Fisher Type 667
I1>IM x 10
2
16
14
12
10
,8
6
4
Figure 1
Dimensionless Head, I1>IM x 102
versus
Dimensionless Discharge, QDIM x 10
3
w
8 10 12 14 16 18 20 22 Q
nIM x 10
3
Q'WA~ ~~
i!.22."Io.o.k
900
800
700
600
SOD
400
'1.?\.\ V'~
Figure 2
Water Discharge, ~ gpm
versus
Percent Air, Air%
(% .~~ water discharge) +'
o 1 2 3 4 5 6 7 8 Air %
~ater (gpm)
900
800
700
600
500
400
Figure 3
Water Discharge, Qw gpm
versus
Air Volume SCFM
Standard Conditions, 70°F and 25 psia
VI
l> 1 2 3 4 5 6 7 8 -9 10
-".-:..
Air Volume SCFM
REFERENCES
(1) Herbich, J. B.
GA.S REMOVAL, SYSTEMS ASS0C!A TED WITH DREDGE PUMPS,
Lehigh. University,.Fritz. Engineering Laboratory
.·Report No. 310.1, February, 1964.
(2) Vesilind, p •. A. and Herbich,. J •. B.
GAS REMOVAL SYSTEMS ASSOCIATED WITH, DREDGE PUMPS,
Lehigh University, Fritz. Engineering, Laboratory
Report No. 310~2'IApril,. 1964.
(3) Uerbich, J. B.
GAS REMOVAL . SYSTEMS ASS0CIATED WITH,. DREDGE PUMPS:
PHASE B ,.' Lehigh Universi ty,. Fritz Engineering
:Laboratory' Report No. 310.4, 0ctober, 1964.
(4) ,Shindala"A., Herbich"J.B.,IAmatange1o,;A."and Bagge, G.
,GAS REMOVAL S.YSTEM PHASE B: ,PART' I,. FORMULATION OF
TEST PROGRAM, Lehigh University"Fritz, Engineering
Laboratory,' Report No. 310 ~ 5 ,. December" 1964.
(5) Shindala"A., Herbich"J.,B.,JAmatange10,JA., and Bagge, G.
GAS REMOVAL, SYSTEM PHASE B: .PART . I, FORMULATION OF ".:TEST
PROGRAM, Lehigh University ,. Fritz.. Enginee·ring Labo-
'ratoryReport.No. 310.6, January, 1965.
(6) ; S1lindala" A. and Herbich, J., B.
GAS, REMOVAL. SYSTEM, ASSOCIATED WITH DREDGE PUMP:
PHASE B, Lehigh Unive.rsity" Fritz- EngiQ,eering
'Laboratory-Report No. 310,.8, J~ne, .1965
_(7) Amatangelo,:A., and Herbich"J. B •
. ,GAS REMOVAL 'SYSTEM "ASSOCIATED WITH·" DREDGE PUMP:
PHASE B, Lehigh. University,. Fritz..:Engi t1eering Labo-
ratory'Report No. 310~9'iAugust, 1965.
(8) He.rbich, J,.B., and Isaacs, W. P.
GAS REMOVAL: S"tSTEMSPART .I: LITERATURE SURVEY AND
FORMULATION 0F TEST PROGRAM. Lehigh- University, .
Fritz Engineering:LaboratoryReportNo. 310.3,. J~ne,
1964.
(9) Shindala,:A .. and Herbich" J. B.
GAS REMOVAL SYSTE~, l?A.RT· II" FORMUlATION OF·· TEST PROGRAM,
DE'V'ELOIMENT OF FACILI'TY LAYOUT; Leh'igh Uni,versity, ,Fritz
. Engineering Laboratory,·Report,Noo. 310.7, Fe'Qruary,.1965.
6.
(10) : Amatangelo,: A•. and Herbich, J.B.
GAS REMOVAL SYSTEM ASSOCIATED WITH DREDGE pUMP:
PHASE B, Lehigh UniversitY"Fritz-Engineering
Laboratory~ReportNo. 310.10, October,< 1965.
(11). Amatangel0, ,A. and Herbich.J. B.
GAS REMOVAL SYSTEM ASSOCIATED WITH DREDGE PUMP:
PHASE-B, Lehigh University"Fritz Engineering
. Laboratory' Report No. 310.11,. December,. 1965.
(12) ijerbich, J .. B. and Vallentine, H•. R•
. EFFECT OF 'IMPELLER DESIGN CHANGES ON. CHARACTERISTICS
OF A MODEL DREpGE PUMP~ Lehigh Unive~sity, Fritz
'. Engineering LabQratory,'Report No. 277,: September, 1961.
(13) Amatangelo,. A., Miller,. R. E., and Herbich, J. B.
GAS REMOVAL SYSTEMASSOC~~ED WITH DREDGE PUMP:
PHASE.C, Lehigh. University"Fritz, Engineering
:Laboratory' Report· No. 310 •.13, February, 1966.
7.


Gas removal system associated with dredge pump: Phase C status report no. 11,  May 1966

https://preserve.lehigh.edu/cgi/viewcontent.cgi?article=1216&context=engr-civil-environmental-fritz-lab-reports

Gas removal system associated with dredge pump: Phase C status report no. 11, May 1966

Abstract

Similar works

Full text

Available Versions

Lehigh University: Lehigh Preserve