TY - GEN
T1 - Generation of high-temperature steam from unused thermal energy by a novel adsorption heat pump
AU - Nakaso, Koichi
AU - Eshima, Shotaro
AU - Fukai, Jun
N1 - Funding Information:
This work is partly supported by the NEDO project under Research and Development Program for Innovative Energy Efficiency Technology, JSPS KAKENHI No.25420923 and No.16K06972.
Publisher Copyright:
© 2016 Author(s).
PY - 2017/1/3
Y1 - 2017/1/3
N2 - For the effective utilization of unused thermal energy, the novel adsorption heat pump system for generating high-temperature steam is proposed. This system adopts a direct heat exchange method to the adsorption heat pump to increase heat transfer rate between adsorbent and heat transfer fluid. The heat pump system consists of two processes: steam generation process and regeneration process. In the steam generation process, water is directly introduced to the adsorbent. In the regeneration process, dry gas is introduced to the adsorbent. In this study, the performance of the system is numerically evaluated. The efficiency of the heat pump system is calculated by the ratio of enthalpy of product steam to input energy. To calculate the enthalpy of steam, mass of steam generated is estimated based on the progress of the regeneration process. Input energy of the heat pump system consists of the blower power to introduce dry gas and the thermal energy to heat dry gas. The effect of the operating condition on the performance of the steam generation process is studied. It is found there is the appropriate regeneration time to maximize the efficiency of the heat pump system.
AB - For the effective utilization of unused thermal energy, the novel adsorption heat pump system for generating high-temperature steam is proposed. This system adopts a direct heat exchange method to the adsorption heat pump to increase heat transfer rate between adsorbent and heat transfer fluid. The heat pump system consists of two processes: steam generation process and regeneration process. In the steam generation process, water is directly introduced to the adsorbent. In the regeneration process, dry gas is introduced to the adsorbent. In this study, the performance of the system is numerically evaluated. The efficiency of the heat pump system is calculated by the ratio of enthalpy of product steam to input energy. To calculate the enthalpy of steam, mass of steam generated is estimated based on the progress of the regeneration process. Input energy of the heat pump system consists of the blower power to introduce dry gas and the thermal energy to heat dry gas. The effect of the operating condition on the performance of the steam generation process is studied. It is found there is the appropriate regeneration time to maximize the efficiency of the heat pump system.
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U2 - 10.1063/1.4968252
DO - 10.1063/1.4968252
M3 - Conference contribution
AN - SCOPUS:85010928072
T3 - AIP Conference Proceedings
BT - International Conference on Engineering, Science and Nanotechnology 2016, ICESNANO 2016
A2 - Kristiawan, Budi
A2 - Wijayanta, Agung Tri
A2 - Danardono, Dominicus
A2 - Santoso, Budi
A2 - Anwar, Miftahul
A2 - Triyono, null
A2 - Hadi, Syamsul
A2 - Triyono, Joko
A2 - Surojo, Eko
A2 - Ariawan, Dody
A2 - Ubaidillah, null
A2 - Suyitno, null
A2 - Muhayat, Nurul
PB - American Institute of Physics Inc.
T2 - 1st International Conference on Engineering, Science and Nanotechnology 2016, ICESNANO 2016
Y2 - 3 August 2016 through 5 August 2016
ER -