Experimental investigation on the performance of an adsorption system using Maxsorb III + ethanol pair

Thu Kyaw, Nami TAKEDA, Takahiko Miyazaki, Bidyut Baran Saha, Shigeru KOYAMA, Tomohiro MARUYAMA, Shinnosuke MAEDA, Toru KAWAMATA

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The performance of an adsorption system using Maxsorb III + ethanol pair is investigated for practical heat pump applications. An adsorption system using a single bed with a single evaporator/condenser is employed and the performance of the system is assessed for various regeneration temperatures (80 °C, 70 °C and 60 °C). The impact of the adsorption time on the performance of the selected pair is further evaluated. The potential application of the present adsorbent + adsorbate pair is the automobile air-conditioning system where the exhaust waste heat will be recovered to operate the adsorption system. Thus, antifreeze fluid is employed as the heat transfer medium for the adsorber and the evaporator/condenser heat exchanger. A mathematical model is developed to estimate the uptake amount from the experimental data. The sensible heat change (thermal mass), the superheating of the refrigerant in the adsorber, the adsorber heat leak and the heat rejection to the heat transfer medium are accounted for. The uptake amount is further verified using the classical p–T–q diagram. For operation using 30 °C adsorber coolant inlet and 15 °C chilled water inlet, the cooling capacity of the present system ranges from 15 to 35 W for the adsorption times of 600 s and 300 s, respectively. It is observed that the regeneration temperature significantly influences the net uptake of the system. The maximum net uptake is recorded to be about 0.995 kg/kg for the regeneration temperature of 80 °C. The system is further assessed using the ratio of the cooling capacity to the adsorption heat.

Translated title of the contributionExperimental investigation on the performance of an adsorption system using Maxsorb III + ethanol pair
Original languageFrench
JournalInternational Journal of Refrigeration
DOIs
Publication statusAccepted/In press - Jan 1 2018

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Ethanol
Adsorption
Evaporators
Heat transfer
Cooling
Condensers (liquefiers)
Ventilation exhausts
Waste heat
Refrigerants
Adsorbates
Air conditioning
Coolants
Temperature
Adsorbents
Automobiles
Hot Temperature
Pumps
Mathematical models
Fluids
Water

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

Cite this

Étude expérimentale sur la performance d'un système à adsorption utilisant une paire Maxsorb III/éthanol. / Kyaw, Thu; TAKEDA, Nami; Miyazaki, Takahiko; Saha, Bidyut Baran; KOYAMA, Shigeru; MARUYAMA, Tomohiro; MAEDA, Shinnosuke; KAWAMATA, Toru.

In: International Journal of Refrigeration, 01.01.2018.

Research output: Contribution to journalArticle

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