Study on the dynamic characteristics of the double-effect absorption refrigerator driven by waste steam

Kiyoshi Saito, Sunao Kawai, Noriyuki Nishiyama

Research output: Contribution to journalArticle

Abstract

In this work, we consider the absorption refrigerator driven by waste steam from fuel cells. The absorption refrigerator we consider does not use steam as a heat source from a boiler which can supply constant heat, but uses waste steam from fuel cells. Therefore the steam flow rate or pressure changes greatly as disturbance. In this work we aim to clarify the effect of the change in steam flow rate or pressure on the performance of the absorption refrigerator driven by waste steam. In this research, first a high precision dynamic simulation model is constructed to enable examination of the dynamic characteristics. In order to simplify the model, the delay in factors which can be ignored is considered as the lumped parameter system model. It was verified that the simulation model matched the results of experimental data to a high degree. With this simulation model, a detailed dynamic characteristics were clarified.

Original languageEnglish
Pages (from-to)1397-1404
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume63
Issue number608
Publication statusPublished - 1997 Apr
Externally publishedYes

Fingerprint

Refrigerators
refrigerators
steam
dynamic characteristics
Steam
steam flow
fuel cells
lumped parameter systems
flow velocity
Fuel cells
Flow rate
simulation
boilers
heat sources
disturbances
examination
Boilers
heat
Computer simulation

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "In this work, we consider the absorption refrigerator driven by waste steam from fuel cells. The absorption refrigerator we consider does not use steam as a heat source from a boiler which can supply constant heat, but uses waste steam from fuel cells. Therefore the steam flow rate or pressure changes greatly as disturbance. In this work we aim to clarify the effect of the change in steam flow rate or pressure on the performance of the absorption refrigerator driven by waste steam. In this research, first a high precision dynamic simulation model is constructed to enable examination of the dynamic characteristics. In order to simplify the model, the delay in factors which can be ignored is considered as the lumped parameter system model. It was verified that the simulation model matched the results of experimental data to a high degree. With this simulation model, a detailed dynamic characteristics were clarified.",
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