Page 104 - PARVEEN, S

rainfall for summer and monsoon season with
318 KABIR, M.H. (Dept. of Computer
Science and Telecommunication Engineering,
Noakhali Science and Technology University,
Noakhali). A New DC Model for Transmission
Loss Allocations in Power Systems. Bang.J. Sci.
Ind. Res., 2007, 42 (3), 257-268.
Under open access environment in the era of
deregulated power industry, transmission loss
allocation to various transactions is one of the
important issues to be solved exactly. Because of
the non-linear nature of power low and power loss,
it is very difficult to segregate and to allocate
losses among the participants properly. This paper
presents a New DC method (NDC) where an
efficient loss allocation algorithm has been
applied. Considering the impact of every line flow
in a network, the loss allocations to the loads have
been computed at first and finally the total loss has
been allocated to the generators. The effectiveness
of this procedure has been studied for the 6-bus
and IEEE 118-bus model power systems. Several
numerical analyses implicate that the proposed loss
allocation procedure including the DC load flow
model is reasonably acceptable.
627. 41 : ENGINEERING: FLOOD
319 BALA, S.K. & AHMED, S.M.U.
(Institute of Water and Flood Management, BUET,
Dhaka). Rainfall Features of North East Region-
The Greater Sylhet Area of Bangladesh. IWFM
Res. Bull., 2004, 5, 50-59.
The upper North East region of Bangladesh comes
under heavy rainfall, which leads to formation of
flash flood in the lower area of the region during
pre-monsoon period. To understand the extent of
flash flood in the region, spatial distribution of
heavy rainfall as well as estimating average rainfall
over the area was studied through primary as well
as secondary rainfall data analysis. The primary
rainfall data, received from 11 auto rain gauges
scattered over the North East region, were also
analyzed to see the rainfall features. The seasonal
setting of hourly and daily rainfall was analyzed by
plotting all available primary data. The regional
difference of rainfall setting has been clarified by
plotting total hourly rainfall data and total of
97
various rainfall intensities for each station.
Statistical analysis of secondary rainfall data
collected from 45 rain stations of BWDB and
scattered over the Greater Sylhet Region, was
carried out to see rainfall distribution pattern and
was ascertained through construction of isohyets
maps. It has been found that a large regional
difference exists for both rainfall intensity and
duration.
320 BALA, S.K. & SALEH, A.F.M.
(Institute of Water and Flood Management
(IWFM), Bangladesh University of Engineering &
Technology (BUET), Dhaka). AN
EXPERIMENTAL STUDY ON DYNAMICS OF
WATER INTAKE RATE IN FURROW
IRRIGATED POTATO FIELD CONSIDERING
INITIAL SOIL MOISTURE CONTENT. IWFM
Res. Bull., 2001-2002, 3 , 26-38.
Water intake parameters in a furrow irrigated
potato field of Bangladesh Agricultural Research
Institute, Joydebpur have been evaluated with
furrow length and spacing of 30 m and 60 cm
respectively. Advance of wetting front and water
intake curves methods were used to determine the
water intake parameters K 1 and α, where influence
of initial soil moisture content (ISMC) at field
condition had been incorporated. Two average
ISMCs - 75% of field capacity (FC) and 81% of
FC were taken into consideration. Average values
of water intake parameters were determined from
both the methods and were taken as recommended
ones. For ISMC of 75% of FC, average water
intake parameters - K 1 and α varied from 2.12 to
2.77 and 0.59 to 0.72 respectively, while for ISMC
of 81% of FC, they varied from 1.93 to 2.09 and
0.61 to 0.83 respectively. The results found in field
study may be used in designing furrow irrigated
crops with the similar furrow spacing and soil
condition and may pave the way for economic
management of irrigation water.
321 CHOWDHURY, J.U. & HOSSAIN,
M.A. (Institute of Water and Flood Management,
BUET, Dhaka). Estimation of Available Water
from the Jamuna by Developing Disaggregation
model of Dry Season Dependable Flow. IWFM
Res. Bull., 2003, 4, 13-22.