AI SearchEconomic effects of pressure conditions in a looped water distribution system (Record no. 33196)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03417nas a2200433 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818094557.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 271098s1982 th r 000| 0eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10221840 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.EV-82-16 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Somjai Vatanavanichkul |
| 245 10 - TITLE STATEMENT | |
| Title | Economic effects of pressure conditions in a looped water distribution system |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1982 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 100 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. EV-82-16 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science, School of Environment, Resources and Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Asian Institute of Technology, 1982 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The study deals with the comparison between the costs of different pumping station arrangements and minimum service pressure variations of water distribution systems. The shortest path concept for flows in combination with a linear optimization model was used to determine the minimum cost of the alternatives in comparison. The model was applied to flat plain and hilly topography networks. A sensitivity analysis was carried out to determine the effects of cost functions of two different countries, a systematic variation of pumping station investment cost and of the determination of the hydraulic gradient by Prandtl-Colebrook or Hazen-William formula. The results indicated that the optimal designs is very sensitive to the relationship of piping and pumping costs. Total system costs increase almost linearly with the increase of the minimum service pressure as for the increasing service may be compensated by an increased pressure at the supply source. The optimal solutions were not very sensitive to changing the investment cost of pumping station and different determinations of hydraulic gradients. The Linear Optimization Technique was compared in one case with the Hardy Cross Technique. The first technique gave a more economical system than the second. Moreover, the Linear Optimization method can cover all design criteria simultaneously while the Hardy Cross demands for checking several criteria after the design calculations. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water-supply engineering |
| General subdivision | Costs |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Water |
| General subdivision | Distribution |
| -- | Computer programs |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Orth, H.M, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lohani, B.N. |
| Relator term | Co-Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kanchit Malaivongs, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of the Netherlands, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. EV-82-16 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B21194">http://203.159.5.9/ait-thesis/detail.php?q=B21194</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10221840 |
| b | mnait |
| c | x |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240902 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | x |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120655575 |
| CREATED | CREATED : 2014-05-02 |
| RECORD Id | RECORD # : i12756891 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160084447 |
| CREATED | CREATED : 2016-04-05 |
| RECORD Id | RECORD # : i1296881x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050121073943 |
| CREATED | CREATED : 2023-07-04 |
| RECORD Id | RECORD # : i13442284 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.EV-82-16 | 30050120655575 | 18/08/2026 | 3 | 18/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.EV-82-16 | 30050160084447 | 18/08/2026 | 18/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.EV-82-16 | 30050121073943 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication |