A review of solar assisted heat pump technology for drying applications
L Zou, Y Liu, M Yu, J Yu - Energy, 2023 - Elsevier
The solar-assisted heat pump (SAHP) systems are increasingly gaining attention for their
potential feasibility in various fields due to their energy saving benefits. However, the …
potential feasibility in various fields due to their energy saving benefits. However, the …
Optimal high-pressure correlation for transcritical CO2 cycle in direct expansion solar assisted heat pumps
Heat demand may be met sustainably by a solar-assisted heat pump that CO 2 as a
refrigerant. This is made possible by the employment of an ecologically benign refrigerant …
refrigerant. This is made possible by the employment of an ecologically benign refrigerant …
Comparative study of geothermal and conventional air conditioner: A case of study for office applications
The high cost of electricity has done that the air condition sector search for alternatives to
produce cold efficiently. It is a necessity, especially in Brazil, where 17% of the total …
produce cold efficiently. It is a necessity, especially in Brazil, where 17% of the total …
Control strategy calibration of a direct-expansion solar-assisted heat pump
P Yin, X Kong, Y Li, J Li - Solar Energy, 2024 - Elsevier
As known, the performance of a direct-expansion solar-assisted heat pump (DX-SAHP) is
affected by environmental and operational parameters significantly, and the variable …
affected by environmental and operational parameters significantly, and the variable …
[HTML][HTML] Expanded Total Equivalent Warming Impact analysis on experimental standalone fresh-food refrigerator
The stand-alone refrigerators for fresh food storage represent a large part of supermarket
refrigeration equipment. In these devices, the usage of refrigerants with low Global Warming …
refrigeration equipment. In these devices, the usage of refrigerants with low Global Warming …
Research on refrigerant charge determination under different compressor speed and its effects on the performance of transcritical CO2 air-conditioning heat pump …
Z Jiang, Y Tian, K Li, Z Zhao, N Liu, H Zhang - Energy, 2024 - Elsevier
CO 2 is assumed to be one of the most potential refrigerant alternatives for electric vehicles
for its excellent properties. However, the charge determination of CO 2 in current studies …
for its excellent properties. However, the charge determination of CO 2 in current studies …
[HTML][HTML] Environmental impact assessment of an air-to-water heat pump through the expanded total equivalent warming impact index based on experimental data
Abstract The Total Equivalent Warming Impact (TEWI) index is conventionally used to
evaluate emissions from heating, ventilation, air conditioning and refrigeration (HVAC&R) …
evaluate emissions from heating, ventilation, air conditioning and refrigeration (HVAC&R) …
Solar irradiation and refrigerant charge effects on performance of direct expansion solar assisted heat pumps using CO2 transcritical cycle
Given the severe water crisis faced by the world in recent decades, and considering that in
Brazil, until the year 2021, hydroelectric plants were responsible for more than half of the …
Brazil, until the year 2021, hydroelectric plants were responsible for more than half of the …
Mass flow characteristics of CO2 operating in a transcritical cycle flowing through a needle expansion valve in a direct-expansion solar assisted heat pump
SN Rabelo, TF Paulino, CPM Soares… - Journal of Building …, 2023 - Elsevier
An expansion device is one of the key components of heat pump systems. Although in the
literature there are several studies that analyze the effect of opening the expansion valve on …
literature there are several studies that analyze the effect of opening the expansion valve on …
Dynamic modeling of an R290 direct-expansion solar-assisted heat pump: Performance analysis for efficient hot water production under different conditions
Given the growing need for sustainable energy solutions, this research addresses the
challenge of improving the efficiency and environmental performance of residential water …
challenge of improving the efficiency and environmental performance of residential water …