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Optimum Mathematical Model for Calculating Intermediate Pressure in Two stage LiBr Refrigerating Cycle(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
1999年04期
Page:
353-356
Research Field:
Publishing date:

Info

Title:
Optimum Mathematical Model for Calculating Intermediate Pressure in Two stage LiBr Refrigerating Cycle
Author(s):
HeJiapeng WangDongfang WangKejin ①
Department of City Building,Nanjing Architectural and Civil Engineering Institute, Nanjing 210009)
Keywords:
absorpt ion ref rigerat ing cycle opt imization mathemat ical model intermediate pressure heat rat io weig hted factor
PACS:
TB616
DOI:
-
Abstract:
T hrough the analysis of t radit ional thermodynamic calculat ion method and it s inadequacy, a new method through calculat ing intermediate pressure of two-stag e LiBr ref rigerat ion cycle to determine thermody namic cycle is advanced. And a calculat ion model of intermed-i ate pressure, p m = p 0 ·p k + $p , is introduced. T he influence of heat source temperature, cooling water temperature and cool media water temperature on Δp is separately analy zed throug h computer simulated calculation. T he w eighted coef ficients that have effect of the factors on Δp are determined throug h an opt imum method, and an opt imum model for calculat ing intermediate pressure in tw o-state LiBr refrigerating cycle is proposed. The calculat ion method of opt imum intermediate pressure is proposed. As a result, the thermodynamic calculation of tw ostag e LiBr refrig erat ing cycle may be simplified and opt imized. Then, this cycle could derive the highest heat ratio.

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Memo

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Last Update: 2013-03-29