Comparative Analysis of System Performance and Thermal Comfort for an Integrated System with PVT and GSHP Considering Two Load Systems: Convective Heating and Radiant Floor Heating

The zero-energy building (ZEB) concept has a high potential for securing energy savings in the building sector. To achieve ZEB, various active systems, including renewable systems such as photovoltaic, solar heating, and geothermal systems, have been developed. However, the existing systems are cost...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2020-10, Vol.13 (20), p.5524
Main Authors: Bae, Sangmu, Nam, Yujin, Choi, Joon-Ho
Format: Article
Language:English
Subjects:
Comparative analysis
convective heating
Cost control
Energy conservation
Energy consumption
Energy efficiency
Floors
Green buildings
ground-source heat pump
Heat
Heating
Heating systems
HVAC
Indoor air quality
Metabolism
Payback periods
photovoltaic-thermal module
Photovoltaics
Predicted Mean Vote index
radiant floor heating
Radiant heating
Radiation
Simulation
Solar heating
Subsidies
Temperature
tri-generation system
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The zero-energy building (ZEB) concept has a high potential for securing energy savings in the building sector. To achieve ZEB, various active systems, including renewable systems such as photovoltaic, solar heating, and geothermal systems, have been developed. However, the existing systems are costly or not optimized. To overcome these issues, the authors previously developed an integrated tri-generation system. In this research, the previously developed system was comprehensively analyzed considering the indoor thermal comfort and energy efficiency to develop a design and operation method for the integrated system. Two different heating systems (convective heating and radiant floor heating) were employed in the tri-generation system, and their system performance, predicted mean vote (PMV), and predicted percentage of dissatisfied (PPD) were compared using simulations. The results showed that the heating coefficient of power of the radiant floor heating system was 18.8% higher than that of the convective heating system. Moreover, the radiant floor heating system (Case 4) met the PMV and PPD standards during all the heating periods. Overall, radiant floor heating was found to be more efficient than convective heating. The results confirm that radiant floor heating is more suitable than convective heating considering the indoor thermal comfort of occupants.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13205524