A novel approach to enhance heat and mass transfer in adsorption heat pumps using the zeolite-water pair

Tatlier M., Tantekin-Ersolmaz B., ERDEM-SENATALAR A.

MICROPOROUS AND MESOPOROUS MATERIALS, cilt.27, sa.1, ss.1-10, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 1
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s1387-1811(98)00174-7
  • Dergi Adı: MICROPOROUS AND MESOPOROUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-10
  • Anahtar Kelimeler: adsorption, coatings, heat pumps, mathematical model, thin films, zeolite 4A, SOLID ADSORPTION, CYCLES
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

A mathematical model is developed for a novel arrangement proposed in order to cope with the drawbacks originating from the inefficient heat and mass transfer in adsorption heat pumps. The zeolite, used as the adsorbent, is envisioned to be synthesized on the surfaces of heat exchanger tubes as continuous coatings, which was also achieved experimentally. Simplifications regarding the boundary conditions are made by using the scaling method and a finite difference scheme is employed for the solution of the resulting differential equations to determine the variation of the temperature of the adsorbent as well as the concentration of the adsorbate within the adsorber. The typical restrictions of adsorption heat pumps are observed to be removed to a great extent and the duration of a single cycle is shortened significantly. (C) 1999 Elsevier Science B.V. All rights reserved.