You need JavaScript to view this

Absorption heat cycles. An experimental and theoretical study

Abstract

A flow sheeting programme, SHPUMP, was developed for simulating different absorption heat cycles. The programme consists of ten different modules which allow the user to construct his own absorption cycle. The ten modules configurate evaporators, absorbers, generators, rectifiers, condensers, solution heat exchangers, pumps, valves, mixers and splitters. Seven basic and well established absorption cycles are available in the configuration data base of the programme. A new Carnot model is proposed heat cycles. Together with exergy analysis, general equations for the Carnot coefficient of performance and equations for thermodynamic efficiency, exergetic efficiency and exergy index, are derived, discussed and compared for both absorption heat pumps and absorption heat transformers. Utilizing SHPUMP, simulation results are presented for different configurations where absorption heat cycles are suggested to be incorporated in three different unit operations within both pulp and paper and oleochemical industries. One of the application studies reveled that an absorption heat transformer incorporated with an evaporation plant in a major pulp and paper industry, would save 18% of the total prime energy consumption in one of the evaporation plants. It was also concluded that installing an absorption heat pump in a paper drying plant would result in steam savings equivalent to 12  More>>
Authors:
Publication Date:
Sep 01, 1993
Product Type:
Thesis/Dissertation
Report Number:
LUTKDH-TKKA-1002-1-122-1993
Reference Number:
SCA: 420400; PA: AIX-25:010057; EDB-94:038827; ERA-19:010010; NTS-94:018191; SN: 94001151914
Resource Relation:
Other Information: TH: Diss. (TeknD).; PBD: Sep 1993
Subject:
42 ENGINEERING; THERMODYNAMICS; ABSORPTION HEAT; CARNOT CYCLE; EXPERIMENTAL DATA; HEAT EXCHANGERS; HEAT FLUX; HEAT PUMPS; HEAT RECOVERY; S CODES; VALVES; 420400; HEAT TRANSFER AND FLUID FLOW
OSTI ID:
10127073
Research Organizations:
Lund Univ. (Sweden). Dept. of Chemical Engineering
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1100-2778; Other: ON: DE94613610; TRN: SE9300313010057
Availability:
OSTI; NTIS; INIS
Submitting Site:
SWDN
Size:
138 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Abrahamsson, K. Absorption heat cycles. An experimental and theoretical study. Sweden: N. p., 1993. Web.
Abrahamsson, K. Absorption heat cycles. An experimental and theoretical study. Sweden.
Abrahamsson, K. 1993. "Absorption heat cycles. An experimental and theoretical study." Sweden.
@misc{etde_10127073,
title = {Absorption heat cycles. An experimental and theoretical study}
author = {Abrahamsson, K}
abstractNote = {A flow sheeting programme, SHPUMP, was developed for simulating different absorption heat cycles. The programme consists of ten different modules which allow the user to construct his own absorption cycle. The ten modules configurate evaporators, absorbers, generators, rectifiers, condensers, solution heat exchangers, pumps, valves, mixers and splitters. Seven basic and well established absorption cycles are available in the configuration data base of the programme. A new Carnot model is proposed heat cycles. Together with exergy analysis, general equations for the Carnot coefficient of performance and equations for thermodynamic efficiency, exergetic efficiency and exergy index, are derived, discussed and compared for both absorption heat pumps and absorption heat transformers. Utilizing SHPUMP, simulation results are presented for different configurations where absorption heat cycles are suggested to be incorporated in three different unit operations within both pulp and paper and oleochemical industries. One of the application studies reveled that an absorption heat transformer incorporated with an evaporation plant in a major pulp and paper industry, would save 18% of the total prime energy consumption in one of the evaporation plants. It was also concluded that installing an absorption heat pump in a paper drying plant would result in steam savings equivalent to 12 MW. An experimental absorption heat transformer unit operating with self-circulation has been modified and thoroughly tested. A reference heat transformer plant has been designed and installed in a major pulp and paper mill where it is directly incorporated with one of the evaporation plants. Preliminary plant operation data are presented. 72 refs, 63 figs, 33 tabs.}
place = {Sweden}
year = {1993}
month = {Sep}
}