The effects of ground heat exchanger parameters changes on geothermal heat pump performance–A review

Y Noorollahi, R Saeidi, M Mohammadi, A Amiri… - Applied Thermal …, 2018‏ - Elsevier
Ground source heat pumps are known as a high-efficiency renewable energy heating and
cooling system. The ground heat exchanger (GHE) plays an important role to achieve a …

Numerical simulation of a novel spiral type ground heat exchanger for enhancing heat transfer performance of geothermal heat pump

R Saeidi, Y Noorollahi, V Esfahanian - Energy conversion and …, 2018‏ - Elsevier
The spiral type one is more prominent of which the vertical type ground heat exchange
(GHE) is the most common in ground source heat pumps (GSHP) and on the purpose of this …

Progress and challenges of helical-shaped geothermal heat exchangers

S Rashidi, N Bakhshi, R Rafee - Environmental Science and Pollution …, 2021‏ - Springer
Among various types of renewable energy, geothermal energy is recognized as an effective
method for supplying thermal energy. Ground heat exchangers, as the main part of a …

Economic and environmental analysis of ground source heat pump system according to operation methods

S Bae, Y Nam - Geothermics, 2022‏ - Elsevier
A ground source heat pump (GSHP) system can achieve high energy performance than
conventional air source heat pump system by using annual stable underground …

Economic and environmental assessment of ground source heat pump system: The case of Turkey

A Kapıcıoğlu, H Esen - Sustainable Energy Technologies and Assessments, 2022‏ - Elsevier
The use of renewable energy sources increases day by day. Although ground source heat
pump systems are used to meet buildings' heating and cooling demands worldwide, high …

Analysis of thermal performance and economy of ground source heat pump system: a case study of the large building

J Han, M Cui, J Chen, W Lv - Geothermics, 2021‏ - Elsevier
The ground source heat pump (GSHP) system is a widely used energy-saving system. In the
study presented in this paper, the thermal performance of a GSHP system in the large …

Clean power production by simultaneous reduction of NOx and SOx contaminants using Mazut Nano-Emulsion and wet flue gas desulfurization

S Kouravand, AM Kermani - Journal of Cleaner Production, 2018‏ - Elsevier
Combustion of Mazut in power plant generates sulfur oxides (SOx) and nitrogen oxides
(NOx) that need to be controlled in accordance with the European standard. Most of the …

Worldwide development of wind energy and co2 emission reduction

H Yousefi, A Abbaspour, HR Seraj - Environmental Energy and Economic …, 2019‏ - eeer.ir
One of the most considerable issues in the global society is reducing CO2 emissions of
industrial activities and its consequences. Therefore, exploitation of clean energy sources is …

Numerical investigation on free cooling performance of ground-source heat pump in a solar greenhouse

Z Hou, Y Hu, X Liu, J Wang, M Yang, J Fan - Thermal Science, 2023‏ - doiserbia.nb.rs
This paper presents the numerical study of a ground source heat pump with borehole free
cooling in a solar greenhouse. The system is mainly composed of a solar greenhouse with a …

Thermal characteristics in a spiral-tube buried in sand/bentonite/graphite under cooling and heating modes

HF Li, MQ Chen, B Liang, BA Fu - Experimental Heat Transfer, 2020‏ - Taylor & Francis
Thermal characteristics in a vertical spiral-tube ground heat exchanger were addressed. The
influences of backfill materials (sand/bentonite/graphite blend) and operation modes were …