Steady-state parametric study of semi-open absorption heat pump water heater performance.
Number: 2672
Author(s) : KUMAR N., GLUESENKAMP K. R., YANG Z., ABU-HEIBA A., PATEL V. K., BHAGWAT R., SANADHYA S., RODE R., SCHMID M., MOGHADDAM S.
Summary
Water heating and dehumidification are major energy consumers in buildings. The novel semi-open absorption heat pump design utilizes the heat of absorption from the dehumidification of space for water heating. The architecture of the system consists of (1) a plate and frame membrane-based absorber, (2) a membrane-based desorber and condenser unit, (3) heat exchangers, (4) ionic liquid, and (5) a 189.3 L (50-gal) water tank. The membrane-based absorber enables heat and mass transfer between three streams: moist air, ionic liquid, and the heat transfer fluid. The heat of vapor absorption elevates the ionic liquid temperature and, in turn, heats the heat transfer fluid. In the desorber unit, the diluted ionic liquid after absorption is heated to above 150℃ and reconcentrated. The heat of condensation from the condensation of water vapor in the condenser is utilized for water heating. The dehumidification performance of the absorber directly affects the COP and heating capacity of the system. Understanding the absorber's performance at various operating conditions would allow one to optimize and design a better performing absorber. In this study, the absorber's water heating capacity and performance are evaluated for varying operating conditions. A maximum COP of 1.25 while water heating water from 18.6 to 60.2°C was achieved at a capacity of 1,010 Watts and an airflow rate of 47.19 L/s. Increasing the desorber oil mass flowrate had negligible effect on the COP. The average mass transfer resistance of the porous membrane absorber was 1.164 *107 m/s.
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Details
- Original title: Steady-state parametric study of semi-open absorption heat pump water heater performance.
- Record ID : 30028580
- Languages: English
- Source: 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
- Publication date: 2021/05
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Semi-open absorption water heater: experimental...
- Author(s) : GLUESENKAMP K. R., KUMAR N., ABU-HEIBA A., PATEL V., YANG Z., BHAGWAT R., SANADHYA S., SCHMID M., RODE R., ANABTAWI B., MOGHADDAM S.
- Date : 2021/08/31
- Languages : English
- Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
- Formats : PDF
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- Author(s) : GUO Y., YUAN W., LI Y., et al.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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- Author(s) : ZOTTER G., MOSER H., RIEBERER R.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
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- Author(s) : KÜHN A., ZIEGLER F.
- Date : 2008/11/19
- Languages : German
- Source: Deutsche Kälte-Klima-Tagung: 2008, Ulm.
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- Author(s) : OKAMOTO H., DANG C., HIHARA E.
- Date : 2012/07/16
- Languages : English
- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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