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An improved method for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere; Usovrsena metoda za prognoziranje na vremenski zavisna izmena na toplina pomegu voden tek i atmosferata

Abstract

In this work an improvement of the methodology for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere at additional discharge of condenser heated water from thermal power plant, published at the XXI Yugoslav Conference of ETAN, is performed. In comparison with the already published methodology this work comprises the following improvements: The dispersive member along the river flow is taken into account, so that the basic second order partial differential equation is to be solved. With this improvement the mentioned methodology becomes applicable for analysis of rivers with high and low velocities. The assumption for stationarity is dropped out for at least three consequent days, in a manner that the conditions for equality of temperature and derivative at the beginning and at the end of the day is replaced with assumption that the river flow reaches minimal and maximal ambient temperature at sunrise and sunset. It is possible to conclude that the main characteristics of the developed methodology is the minimal number of hydro meteorological data are needed, that is only two temperature measurements of the water and two measurements of the wind velocity for the whole day - night time period. This conclusion is  More>>
Authors:
Bosevski, T; [1]  Kusakatov, V [2] 
  1. elektrotehnicki fakultet, Skopje (Yugoslavia)
  2. Matematicki fakultet, Skopje (Yugoslavia)
Publication Date:
Jul 01, 1978
Product Type:
Conference
Report Number:
INIS-RS-0922
Resource Relation:
Conference: 22. Conference - ETAN Society for Electronics, Telecommunications, Computers, Automation, and Nuclear Engineering, 22. Konferencija za ETAN, Zadar (Yugoslavia), 12-16 Jun 1978; Other Information: 4 refs., 2 figs
Subject:
42 ENGINEERING; FLOW RATE; HEAT TRANSFER; PARTIAL DIFFERENTIAL EQUATIONS; RIVERS; SURFACE AIR; TEMPERATURE MEASUREMENT; TIME DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS
OSTI ID:
20888710
Country of Origin:
Serbia
Language:
English
Other Identifying Numbers:
TRN: RS07RA529053245
Availability:
Available from INIS in electronic form; Also available from the Institute of Nuclear Sciences VINCA
Submitting Site:
INIS
Size:
11 pages
Announcement Date:
Aug 10, 2007

Citation Formats

Bosevski, T, and Kusakatov, V. An improved method for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere; Usovrsena metoda za prognoziranje na vremenski zavisna izmena na toplina pomegu voden tek i atmosferata. Serbia: N. p., 1978. Web.
Bosevski, T, & Kusakatov, V. An improved method for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere; Usovrsena metoda za prognoziranje na vremenski zavisna izmena na toplina pomegu voden tek i atmosferata. Serbia.
Bosevski, T, and Kusakatov, V. 1978. "An improved method for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere; Usovrsena metoda za prognoziranje na vremenski zavisna izmena na toplina pomegu voden tek i atmosferata." Serbia.
@misc{etde_20888710,
title = {An improved method for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere; Usovrsena metoda za prognoziranje na vremenski zavisna izmena na toplina pomegu voden tek i atmosferata}
author = {Bosevski, T, and Kusakatov, V}
abstractNote = {In this work an improvement of the methodology for analysis of time dependent one-dimensional heat exchange between a river flow and atmosphere at additional discharge of condenser heated water from thermal power plant, published at the XXI Yugoslav Conference of ETAN, is performed. In comparison with the already published methodology this work comprises the following improvements: The dispersive member along the river flow is taken into account, so that the basic second order partial differential equation is to be solved. With this improvement the mentioned methodology becomes applicable for analysis of rivers with high and low velocities. The assumption for stationarity is dropped out for at least three consequent days, in a manner that the conditions for equality of temperature and derivative at the beginning and at the end of the day is replaced with assumption that the river flow reaches minimal and maximal ambient temperature at sunrise and sunset. It is possible to conclude that the main characteristics of the developed methodology is the minimal number of hydro meteorological data are needed, that is only two temperature measurements of the water and two measurements of the wind velocity for the whole day - night time period. This conclusion is especially important when statistical analyses of data for longer past period of time are made, i.e. when it is not possible to obtain additional information. (author)}
place = {Serbia}
year = {1978}
month = {Jul}
}