Performance test for scale-up characteristics of adsorption steam generators

Koichi Nakaso, Jun Fukai, Tsuguhiko Nakagawa, Kasumi Ito, Yoshio Abe, Yoshiaki Kawakami, Masayuki Tanino, Yoshinori Itaya, Nobusuke Kobayashi, Kenji Marumo, Toshiyuki Aoyama, Tatsuya Masui

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The performance of steam generators to generate high-temperature steam using waste heat from industrial processes was investigated. Two types of steam generators were constructed. One is a bench-scale cylindrical generator having similar structure to the laboratory-scale reactor used in the authors’ previous research. The other is a scaled-up generator whose flow passage area is extended to store a large amount of adsorbent for further scale-up on practical application. Temperature measurements in the bench-scale generator in the atmospheric steam generation process showed that a high-temperature region is formed above the water level due to adsorption of water vapor, while a low-temperature region below saturation temperature is formed below the water level. The mass of steam generate d per unit mass of adsorbent increased with increasing energy supplied from the regeneration air and approached an asymptotic value depending on the temperature of the regeneration air. The mass of steam generated per unit mass of adsorbent increased with decreasing heat capacity of the generator.

Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalKagaku Kogaku Ronbunshu
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 1 2018
Externally publishedYes

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Steam
Steam generators
Adsorption
Adsorbents
Water levels
Temperature
Waste heat
Air
Temperature measurement
Water vapor
Specific heat

Keywords

  • Adsorption heat pump
  • High-temperature steam
  • Low-grade waste heat
  • Scale-up
  • Zeolite

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Performance test for scale-up characteristics of adsorption steam generators. / Nakaso, Koichi; Fukai, Jun; Nakagawa, Tsuguhiko; Ito, Kasumi; Abe, Yoshio; Kawakami, Yoshiaki; Tanino, Masayuki; Itaya, Yoshinori; Kobayashi, Nobusuke; Marumo, Kenji; Aoyama, Toshiyuki; Masui, Tatsuya.

In: Kagaku Kogaku Ronbunshu, Vol. 44, No. 1, 01.01.2018, p. 71-77.

Research output: Contribution to journalArticle

Nakaso, K, Fukai, J, Nakagawa, T, Ito, K, Abe, Y, Kawakami, Y, Tanino, M, Itaya, Y, Kobayashi, N, Marumo, K, Aoyama, T & Masui, T 2018, 'Performance test for scale-up characteristics of adsorption steam generators', Kagaku Kogaku Ronbunshu, vol. 44, no. 1, pp. 71-77. https://doi.org/10.1252/kakoronbunshu.44.71
Nakaso, Koichi ; Fukai, Jun ; Nakagawa, Tsuguhiko ; Ito, Kasumi ; Abe, Yoshio ; Kawakami, Yoshiaki ; Tanino, Masayuki ; Itaya, Yoshinori ; Kobayashi, Nobusuke ; Marumo, Kenji ; Aoyama, Toshiyuki ; Masui, Tatsuya. / Performance test for scale-up characteristics of adsorption steam generators. In: Kagaku Kogaku Ronbunshu. 2018 ; Vol. 44, No. 1. pp. 71-77.
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