Solar Thermal Polygeneration System for Cooling, Fresh Water, and Domestic Hot Water Supply: Experimental Analysis

2015 ◽  
pp. 781-791 ◽  
Author(s):  
Gowtham Mohan ◽  
Uday Kumar N. T. ◽  
Manoj Kumar P. ◽  
Andrew Martin
Keyword(s):  
Water Supply ◽  
Fresh Water ◽  
Experimental Analysis ◽  
Hot Water ◽  
Solar Thermal ◽  
Domestic Hot Water ◽  
Hot Water Supply ◽  
Polygeneration System

Simulation Study of a Novel Solar Thermal Seasonal Heat Storage System Based on Stable Supercooled PCM for Space Heating and Domestic Hot Water Supply of Single Family Houses

2019 ◽  
Vol 887 ◽  
pp. 650-658
Author(s):  
Christoph Moser ◽  
Gerald Englmair ◽  
Hermann Schranzhofer ◽  
Andreas Heinz
Keyword(s):  
Water Supply ◽  
Latent Heat ◽  
Heat Supply ◽  
Heat Storage ◽  
Hot Water ◽  
Solar Thermal ◽  
Space Heating ◽  
Single Family ◽  
Domestic Hot Water ◽  
Hot Water Supply

A TRNSYS model of a novel PCM heat storage, utilizing stable supercooling of Sodium Acetate Trihydrate (SAT), is presented. To achieve high solar fractions in heat supply of single family houses, the necessary integration of big water volumes is challenging. To evaluate its functionality, a system model of a solar thermal combisystem for space heating and domestic hot water supply for dynamic system simulation was built. The key component is a PCM volume for long term heat storage. While conventional heat storage concepts with SAT release the latent heat a few degrees below the melting temperature, with the concept of stable supercooling latent heat can be stored for long periods of time at ambient temperature. This allows the design of a partly loss-free storage. Solar fractions were evaluated for simulation runs with two building variations. Annual specific space heating demands of 15 and 30 kWh/(m2a) and a domestic hot water demand of a typical single family house were considered. A sensitivity analysis on solar fractions of domestic heat supply was performed by variation of the collector field and the PCM volume. While the increase of the PCM volume from 4.5 m3 to 9 m3 shows moderate effects in all simulation runs, an increase of the collector area has substantial effects on the share of solar heat on the total energy demand of the building.

scholarly journals Software for Obtaining the Solar Coverage of a Solar Thermal Energy Installation for Domestic Hot Water Supply by Applying the f-Chart Method

Proceedings ◽  
2018 ◽  
Vol 2 (23) ◽  
pp. 1449
Author(s):  
Sofía Sánchez Álvarez ◽  
Mª Pilar Castro García
Keyword(s):  
Water Supply ◽  
Thermal Energy ◽  
Energy Supply ◽  
Hot Water ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Domestic Hot Water ◽  
Energy Installation ◽  
Hot Water Supply

This project presents the design of a simple software for the determination of solar coverage (f-Chart method) in domestic hot water installations. This program allows to determine in a fast and simple way, the fulfillment of the minimum needs of solar thermal energy supply according to the Technical Building Code.

Architecture Design of Building Integrated Solar Collector

2014 ◽  
Vol 889-890 ◽  
pp. 1333-1336
Author(s):  
Yu Fu ◽  
Kai Chen ◽  
Fei Ying Fu ◽  
Xin Bin Wang
Keyword(s):  
Water Supply ◽  
Solar Collector ◽  
Residential Buildings ◽  
Radiation Energy ◽  
Hot Water ◽  
Space Heating ◽  
Solar Collectors ◽  
Domestic Hot Water ◽  
Heating And Cooling ◽  
Hot Water Supply

Solar thermal collector converts solar radiation energy into useful thermal energy and transfers to a transport fluid flowing through the system. The collected energy can be used either direct to space or water heating equipment, or to a thermal storage for later use. Along with fast development, not only domestic hot water supply is needed, but also space heating and cooling are required. Also, limited roof space is another key barrier that should be considered. Furthermore, most of the building integration with solar collectors are mounted on the roof top by flat or tilt angle at present. It is considered to be a failure of low level architectural quality because the collector is used only for application and seems as an independent technical element of the building. With the consideration of the above, novel type of solar collector has been proposed to realize the utilization and offset the barriers. This novel solar collectors is especially suitable to supply domestic hot water, and combines with ASHP for multi-function, space heating and cooling as well as domestic hot water supply. Additionally, it is well integrated with high-rise residential buildings, which is good for aesthetic.

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