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Performance and exergy analyses of a solar assisted heat pump with seasonal heat storage and grey water heat recovery unit
ID
Poredoš, Primož
(
Avtor
),
ID
Vidrih, Boris
(
Avtor
),
ID
Poredoš, Alojz
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(6,80 MB)
MD5: A983A23526C663AA3A2FAB20EFB3D319
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/1099-4300/23/1/47
Galerija slik
Izvleček
The main research objective of this paper was to compare exergy performance of three different heat pump (HP)-based systems and one natural gas (NG)-based system for the production of heating and cooling energy in a single-house dwelling. The study considered systems based on: 1. A NG and auxiliary cooling unit; 2. Solely HP, 3. HP with additional seasonal heat storage (SHS) and a solar thermal collector (STC); 4. HP with SHS, a STC and a grey water (GW) recovery unit. The assessment of exergy efficiencies for each case was based on the transient systems simulation program TRNSYS, which was used for the simulation of energy use for space heating and cooling of the building, sanitary hot water production, and the thermal response of the seasonal heat storage and solar thermal system. The results show that an enormous waste of exergy is observed by the system based on an NG boiler (with annual overall exergy efficiency of 0.11) in comparison to the most efficient systems, based on HP water–water with a seasonal heat storage and solar thermal collector with the efficiency of 0.47. The same system with an added GW unit exhibits lower water temperatures, resulting in the exergy efficiency of 0.43. The other three systems, based on air–, water–, and ground–water HPs, showsignificantly lower annual source water temperatures (10.9, 11.0, 11.0, respectively) compared to systems with SHS and SHS + GW, with temperatures of 28.8 and 19.3 K, respectively.
Jezik:
Angleški jezik
Ključne besede:
exergy efficiency
,
grey water heat recovery unit
,
seasonal heat storage
,
solar-assisted heat pump
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2021
Št. strani:
17 str.
Številčenje:
Vol. 23, iss. 1, art. 47
PID:
20.500.12556/RUL-124125
UDK:
621.577:519.6(045)
ISSN pri članku:
1099-4300
DOI:
10.3390/e23010047
COBISS.SI-ID:
45184771
Datum objave v RUL:
04.01.2021
Število ogledov:
1042
Število prenosov:
281
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Entropy
Skrajšan naslov:
Entropy
Založnik:
MDPI
ISSN:
1099-4300
COBISS.SI-ID:
515806233
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:
01.01.2021
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
eksergijski izkoristek
,
naprava za rekuperacijo toplote sive vode
,
sezonski hranilnik toplote
,
solarna toplotna črpalka
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0223
Naslov:
Prenos toplote in snovi
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