Laboratory investigation on the use of thermally enhanced phase change material to improve the performance of borehole heat exchangers for ground source heat pumps

2019 ◽  
Vol 43 (9) ◽  
pp. 4148-4156 ◽  
Author(s):  
Yi Lyne ◽  
Halime Paksoy ◽  
Mohammed Farid
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Laboratory Investigation ◽  
Heat Exchangers ◽  
Heat Pumps ◽  
Ground Source Heat Pumps ◽  
Ground Source ◽  
Change Material ◽  
Borehole Heat Exchangers

scholarly journals Efficient storage and recovery of waste heat by phase change material embedded within additively manufactured grid heat exchangers

2021 ◽  
Vol 181 ◽  
pp. 121846
Author(s):  
Maryam Roza Yazdani ◽  
Alpo Laitinen ◽  
Valtteri Helaakoski ◽  
Lorant Katona Farnas ◽  
Kirsi Kukko ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Heat Exchangers ◽  
Waste Heat ◽  
Efficient Storage ◽  
Change Material

scholarly journals Ground-Source Heat Pumps with Horizontal Heat Exchangers for Space Cooling in the Hot Tropical Climate of Thailand

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1274 ◽  
Author(s):  
Arif Widiatmojo ◽  
Sasimook Chokchai ◽  
Isao Takashima ◽  
Yohei Uchida ◽  
Kasumi Yasukawa ◽  
...  
Keyword(s):  
Economic Growth ◽  
Heat Pump ◽  
Heat Exchangers ◽  
Life Cycle Cost ◽  
Heat Pumps ◽  
Ground Source Heat Pump ◽  
Ground Source Heat Pumps ◽  
Air Source Heat Pump ◽  
Ground Source ◽  
Space Cooling

The cooling of spaces in tropical regions, such as Southeast Asia, consumes a lot of energy. Additionally, rapid population and economic growth are resulting in an increasing demand for space cooling. The ground-source heat pump has been proven a reliable, cost-effective, safe, and environmentally-friendly alternative for cooling and heating spaces in various countries. In tropical countries, the presumption that the ground-source heat pump may not provide better thermal performance than the normal air-source heat pump arises because the difference between ground and atmospheric temperatures is essentially low. This paper reports the potential use of a ground-source heat pump with horizontal heat exchangers in a tropical country—Thailand. Daily operational data of two ground-source heat pumps and an air-source heat pump during a two-month operation are analyzed and compared. Life cycle cost analysis and CO2 emission estimation are adopted to evaluate the economic value of ground-source heat pump investment and potential CO2 reduction through the use of ground-source heat pumps, in comparison with the case for air-source heat pumps. It was found that the ground-source heat pumps consume 17.1% and 18.4% less electricity than the air-source heat pump during this period. Local production of heat pumps and heat exchangers, as well as rapid regional economic growth, can be positive factors for future ground-source heat pump application, not only in Thailand but also southeast Asian countries.

scholarly journals Field evaluation of microencapsulated phase change material slurry in ground source heat pump systems

Energy ◽  
2017 ◽  
Vol 122 ◽  
pp. 691-700 ◽  
Author(s):  
Minsuk Kong ◽  
Jorge L. Alvarado ◽  
Curt Thies ◽  
Sean Morefield ◽  
Charles P. Marsh
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Heat Pump ◽  
Field Evaluation ◽  
Ground Source Heat Pump ◽  
Microencapsulated Phase Change Material ◽  
Ground Source ◽  
Change Material
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