Supporting district heating and cooling networks with a bifunctional solar assisted absorption chiller

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Standard

Supporting district heating and cooling networks with a bifunctional solar assisted absorption chiller. / Arabkoohsar, A.; Andresen, G. B.

I: Energy Conversion and Management, Bind 148, 15.09.2017, s. 184-196.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

APA

CBE

MLA

Vancouver

Author

Arabkoohsar, A. ; Andresen, G. B. / Supporting district heating and cooling networks with a bifunctional solar assisted absorption chiller. I: Energy Conversion and Management. 2017 ; Bind 148. s. 184-196.

Bibtex

@article{9a81508a93234f8589f1f0a3b15b04ba,
title = "Supporting district heating and cooling networks with a bifunctional solar assisted absorption chiller",
abstract = "Supplying the heating demand of the absorption chillers connected to district heating systems is challenging during summertime when there is not enough demand to take advantage of the high temperature discharge water of the chillers. In this work, a new configuration of a bifunctional solar assisted absorption chiller is proposed by which the heating demand of the chiller is efficiently supplied. This innovative system takes advantage of an evacuated tube solar thermal system and has no cooling tower. The proposed system is designed and simulated for a case study in Denmark, i.e. the Aarhus University Hospital. The effect of applying the proposed system to the performance of the hospital cooling systems and the local district heating network is assessed over an entire year. The results show that the proposed system could make a 30% contribution to the heat preparation process of the absorption chiller during the summer and a 17% contribution seen over the entire year. Aside from this, the system can contribute a large amount of heat production for district heating purposes during the cold months. As such, the effect of replacing the conventional system with the proposed configuration on the CO2 emission of the case study is evaluated. Finally, the two economic criteria of net present value and internal rate of return are used to assess the effectiveness of the project economically, finding it very feasible and economical with a payback period of less than two years. (C) 2017 Elsevier Ltd. All rights reserved.",
keywords = "Absorption chiller, Solar energy, Bifunctional cooling system, District heating, District cooling, LIBR/H2O, SYSTEM",
author = "A. Arabkoohsar and Andresen, {G. B.}",
year = "2017",
month = sep,
day = "15",
doi = "10.1016/j.enconman.2017.06.004",
language = "English",
volume = "148",
pages = "184--196",
journal = "Energy Conversion and Management",
issn = "0196-8904",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Supporting district heating and cooling networks with a bifunctional solar assisted absorption chiller

AU - Arabkoohsar, A.

AU - Andresen, G. B.

PY - 2017/9/15

Y1 - 2017/9/15

N2 - Supplying the heating demand of the absorption chillers connected to district heating systems is challenging during summertime when there is not enough demand to take advantage of the high temperature discharge water of the chillers. In this work, a new configuration of a bifunctional solar assisted absorption chiller is proposed by which the heating demand of the chiller is efficiently supplied. This innovative system takes advantage of an evacuated tube solar thermal system and has no cooling tower. The proposed system is designed and simulated for a case study in Denmark, i.e. the Aarhus University Hospital. The effect of applying the proposed system to the performance of the hospital cooling systems and the local district heating network is assessed over an entire year. The results show that the proposed system could make a 30% contribution to the heat preparation process of the absorption chiller during the summer and a 17% contribution seen over the entire year. Aside from this, the system can contribute a large amount of heat production for district heating purposes during the cold months. As such, the effect of replacing the conventional system with the proposed configuration on the CO2 emission of the case study is evaluated. Finally, the two economic criteria of net present value and internal rate of return are used to assess the effectiveness of the project economically, finding it very feasible and economical with a payback period of less than two years. (C) 2017 Elsevier Ltd. All rights reserved.

AB - Supplying the heating demand of the absorption chillers connected to district heating systems is challenging during summertime when there is not enough demand to take advantage of the high temperature discharge water of the chillers. In this work, a new configuration of a bifunctional solar assisted absorption chiller is proposed by which the heating demand of the chiller is efficiently supplied. This innovative system takes advantage of an evacuated tube solar thermal system and has no cooling tower. The proposed system is designed and simulated for a case study in Denmark, i.e. the Aarhus University Hospital. The effect of applying the proposed system to the performance of the hospital cooling systems and the local district heating network is assessed over an entire year. The results show that the proposed system could make a 30% contribution to the heat preparation process of the absorption chiller during the summer and a 17% contribution seen over the entire year. Aside from this, the system can contribute a large amount of heat production for district heating purposes during the cold months. As such, the effect of replacing the conventional system with the proposed configuration on the CO2 emission of the case study is evaluated. Finally, the two economic criteria of net present value and internal rate of return are used to assess the effectiveness of the project economically, finding it very feasible and economical with a payback period of less than two years. (C) 2017 Elsevier Ltd. All rights reserved.

KW - Absorption chiller

KW - Solar energy

KW - Bifunctional cooling system

KW - District heating

KW - District cooling

KW - LIBR/H2O

KW - SYSTEM

U2 - 10.1016/j.enconman.2017.06.004

DO - 10.1016/j.enconman.2017.06.004

M3 - Journal article

VL - 148

SP - 184

EP - 196

JO - Energy Conversion and Management

JF - Energy Conversion and Management

SN - 0196-8904

ER -