Regular Article

A novel hybrid adsorption heat pump water heater

  1. Lihua Dong1,*,
  2. Yuko Suzuki1,
  3. Noriyuki Kobayashi2,*

Article first published online: 22 SEP 2009

DOI: 10.1002/cjce.20203

Issue

The Canadian Journal of Chemical Engineering

The Canadian Journal of Chemical Engineering

Volume 87, Issue 5, pages 741–747, October 2009

Additional Information

How to Cite

Dong, L., Suzuki, Y. and Kobayashi, N. (2009), A novel hybrid adsorption heat pump water heater. Can. J. Chem. Eng., 87: 741–747. doi: 10.1002/cjce.20203

Author Information

  1. 1

    Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan

  2. 2

    Eco Topia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan

*Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.

Publication History

  1. Issue published online: 22 SEP 2009
  2. Article first published online: 22 SEP 2009
  3. Manuscript Accepted: 1 MAY 2009
  4. Manuscript Revised: 12 MAR 2009
  5. Manuscript Received: 8 OCT 2008

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Keywords:

  • hybrid water heater;
  • adsorption heat pump;
  • gas boiler;
  • zeolite

Abstract

A hybrid adsorption heat pump water heater has been studied for domestic use. It is a water heater with dual heat sources, and it combines the performances of adsorption heat pumps and conventional gas boilers. Moreover, functional adsorbent material-zeolite (FAM-Z02, Mitsubishi Chemicals) and water are a new adsorption pair for adsorption heat pumps. This article describes the operation, design, and performance analysis of one such water-heating device. The experimental results showed that the hybrid water heater in the whole year has a stable COP even at low ambient temperature. The hybrid water heater can thus achieve high energy efficiency.

Un chauffe-eau hybride avec pompe à chaleur à adsorption destiné à un usage domestique a été étudié. Il s'agit d'un chauffe-eau possédant deux sources de chaleur et recourant aux principes des pompes à chaleur à adsorption et des chaudières à gaz classiques. De plus, un matériau adsorbant fonctionnel à zéolites (FAM-Z02, Mitsubishi Chemicals) et l'eau constituent un nouveau jumelage pour pompes à chaleur à adsorption. L'article décrit et analyse le fonctionnement, la conception et le rendement d'un de ces chauffe-eau. Les résultats de l'essai ont démontré que le chauffe-eau hybride offre un rendement (COP) stable tout au long de l'année, et ce, même si la température ambiante est basse. Le chauffe-eau hybride offre donc un rendement énergétique élevé.

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