Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region

Tian You; Wei Wu; Baolong Wang; Wenxing Shi; Xianting Li

doi:10.1007/978-3-642-39581-9_44

Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region

Tian You, Wei Wu, Baolong Wang^*, Wenxing Shi, Xianting Li

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

17 Citations (Scopus)

Abstract

Ground-coupled heat pump (GCHP) has been widely used as an energy-saving and environment-friendly heating and cooling system. But for the buildings in cold regions, because the heat extracted from ground is much larger than the heat rejected into it, the ground cannot keep thermal balance and consequently the soil temperature will decrease year by year. With the decrease of the soil temperature, the ground-coupled heat pump system declines in performance or even stops running after a longtime operation. This paper aims at specifically revealing the phenomenon of soil temperature decrease in cold regions by an integrated dynamic simulation. 10 year's dynamic soil temperatures of GCHP used for just heating and for both heating and cooling in four typical cities are simulated and compared. The results show that the office building using GCHP just for heating has a severer soil temperature decrease: the temperature drop is respectively 11.7 °C in Harbin, 9.6 °C in Shenyang, 9.0 °C in Beijing, 5.8 °C in Zhengzhou. For the system with both heating and cooling, the soil temperature drop is 8.2 °C and 3.4 °C in Harbin and Shenyang, while the soil temperature rise is 0.02 °C and 5.5 °C in Beijing and Zhengzhou. The results of simulation are valuable for the design and operation of GCHP system applied in cold region.

Original language	English
Title of host publication	Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning
Subtitle of host publication	HVAC&R Component and Energy System
Editors	Angui Li, Yingxin Zhu, Yuguo Li
Chapter	44
Pages	439-448
Volume	2
ISBN (Electronic)	9783642395819
DOIs	https://doi.org/10.1007/978-3-642-39581-9_44
Publication status	Published - Oct 2013
Externally published	Yes
Event	8th International Symposium on Heating, Ventilation, and Air Conditioning (ISHVAC2013) - Xi'an, China Duration: 19 Oct 2013 → 21 Oct 2013

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	262
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	8th International Symposium on Heating, Ventilation, and Air Conditioning (ISHVAC2013)
Place	China
City	Xi'an
Period	19/10/13 → 21/10/13

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Dynamic soil temperature
Ground-coupled heat pump
Simulation
Thermal imbalance

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10.1007/978-3-642-39581-9_44

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Cite this

You, T., Wu, W., Wang, B., Shi, W., & Li, X. (2013). Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region. In A. Li, Y. Zhu, & Y. Li (Eds.), Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC&R Component and Energy System (Vol. 2, pp. 439-448). (Lecture Notes in Electrical Engineering; Vol. 262). https://doi.org/10.1007/978-3-642-39581-9_44

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title = "Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region",

abstract = "Ground-coupled heat pump (GCHP) has been widely used as an energy-saving and environment-friendly heating and cooling system. But for the buildings in cold regions, because the heat extracted from ground is much larger than the heat rejected into it, the ground cannot keep thermal balance and consequently the soil temperature will decrease year by year. With the decrease of the soil temperature, the ground-coupled heat pump system declines in performance or even stops running after a longtime operation. This paper aims at specifically revealing the phenomenon of soil temperature decrease in cold regions by an integrated dynamic simulation. 10 year's dynamic soil temperatures of GCHP used for just heating and for both heating and cooling in four typical cities are simulated and compared. The results show that the office building using GCHP just for heating has a severer soil temperature decrease: the temperature drop is respectively 11.7 °C in Harbin, 9.6 °C in Shenyang, 9.0 °C in Beijing, 5.8 °C in Zhengzhou. For the system with both heating and cooling, the soil temperature drop is 8.2 °C and 3.4 °C in Harbin and Shenyang, while the soil temperature rise is 0.02 °C and 5.5 °C in Beijing and Zhengzhou. The results of simulation are valuable for the design and operation of GCHP system applied in cold region.",

keywords = "Dynamic soil temperature, Ground-coupled heat pump, Simulation, Thermal imbalance",

author = "Tian You and Wei Wu and Baolong Wang and Wenxing Shi and Xianting Li",

year = "2013",

month = oct,

doi = "10.1007/978-3-642-39581-9_44",

language = "English",

isbn = "9783642395802",

volume = "2",

series = "Lecture Notes in Electrical Engineering",

pages = "439--448",

editor = "Angui Li and Yingxin Zhu and Yuguo Li",

booktitle = "Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning",

note = "8th International Symposium on Heating, Ventilation, and Air Conditioning (ISHVAC2013) ; Conference date: 19-10-2013 Through 21-10-2013",

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You, T, Wu, W, Wang, B, Shi, W & Li, X 2013, Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region. in A Li, Y Zhu & Y Li (eds), Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC&R Component and Energy System. vol. 2, Lecture Notes in Electrical Engineering, vol. 262, pp. 439-448, 8th International Symposium on Heating, Ventilation, and Air Conditioning (ISHVAC2013), Xi'an, China, 19/10/13. https://doi.org/10.1007/978-3-642-39581-9_44

Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region. / You, Tian; Wu, Wei; Wang, Baolong et al.
Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC&R Component and Energy System. ed. / Angui Li; Yingxin Zhu; Yuguo Li. Vol. 2 2013. p. 439-448 (Lecture Notes in Electrical Engineering; Vol. 262).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region

AU - You, Tian

AU - Wu, Wei

AU - Wang, Baolong

AU - Shi, Wenxing

AU - Li, Xianting

PY - 2013/10

Y1 - 2013/10

N2 - Ground-coupled heat pump (GCHP) has been widely used as an energy-saving and environment-friendly heating and cooling system. But for the buildings in cold regions, because the heat extracted from ground is much larger than the heat rejected into it, the ground cannot keep thermal balance and consequently the soil temperature will decrease year by year. With the decrease of the soil temperature, the ground-coupled heat pump system declines in performance or even stops running after a longtime operation. This paper aims at specifically revealing the phenomenon of soil temperature decrease in cold regions by an integrated dynamic simulation. 10 year's dynamic soil temperatures of GCHP used for just heating and for both heating and cooling in four typical cities are simulated and compared. The results show that the office building using GCHP just for heating has a severer soil temperature decrease: the temperature drop is respectively 11.7 °C in Harbin, 9.6 °C in Shenyang, 9.0 °C in Beijing, 5.8 °C in Zhengzhou. For the system with both heating and cooling, the soil temperature drop is 8.2 °C and 3.4 °C in Harbin and Shenyang, while the soil temperature rise is 0.02 °C and 5.5 °C in Beijing and Zhengzhou. The results of simulation are valuable for the design and operation of GCHP system applied in cold region.

AB - Ground-coupled heat pump (GCHP) has been widely used as an energy-saving and environment-friendly heating and cooling system. But for the buildings in cold regions, because the heat extracted from ground is much larger than the heat rejected into it, the ground cannot keep thermal balance and consequently the soil temperature will decrease year by year. With the decrease of the soil temperature, the ground-coupled heat pump system declines in performance or even stops running after a longtime operation. This paper aims at specifically revealing the phenomenon of soil temperature decrease in cold regions by an integrated dynamic simulation. 10 year's dynamic soil temperatures of GCHP used for just heating and for both heating and cooling in four typical cities are simulated and compared. The results show that the office building using GCHP just for heating has a severer soil temperature decrease: the temperature drop is respectively 11.7 °C in Harbin, 9.6 °C in Shenyang, 9.0 °C in Beijing, 5.8 °C in Zhengzhou. For the system with both heating and cooling, the soil temperature drop is 8.2 °C and 3.4 °C in Harbin and Shenyang, while the soil temperature rise is 0.02 °C and 5.5 °C in Beijing and Zhengzhou. The results of simulation are valuable for the design and operation of GCHP system applied in cold region.

KW - Dynamic soil temperature

KW - Ground-coupled heat pump

KW - Simulation

KW - Thermal imbalance

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DO - 10.1007/978-3-642-39581-9_44

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SN - 9783642395802

VL - 2

T3 - Lecture Notes in Electrical Engineering

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BT - Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning

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ER -

You T, Wu W, Wang B, Shi W, Li X. Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region. In Li A, Zhu Y, Li Y, editors, Proceedings of the 8th International Symposium on Heating, Ventilation and Air Conditioning: HVAC&R Component and Energy System. Vol. 2. 2013. p. 439-448. (Lecture Notes in Electrical Engineering). doi: 10.1007/978-3-642-39581-9_44

Dynamic Soil Temperature of Ground-Coupled Heat Pump System in Cold Region

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