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Statements

Subject Item
n2:RIV%2F49777513%3A23220%2F10%3A43899167%21RIV12-MSM-23220___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
At present with continuously increasing number of installations of renewable sources in residential sector and with purchase price lowering, the most efficient utilization of such produced energy will be required. In this paper I present one of possible solutions based on increasing of efficiency of photovoltaic (PV) cell by cooling its surface by heat pump. Assumption of increasing efficiency comes from specific characteristics of PV cell materials. For optimal operation of photovoltaic module we need to calculate the amount of thermal energy converted by solar cell from incoming solar light. This amount has to be di-verted off the surface of PV cell by heat pump. However, this heat serves only as a additional source for heat pump. Output power of heat pump can be projected on calculation of thermal energy demand for considered building. For this calculation I used the most common method for heat transmission through external walls of the building. For visualization of annual heat demand and for rough estimation of thermal energy produced by PV module I performed these calculations with average temperature and solar irradiance on m2. I obtained this data from a meteorological station located in Plzeň ? Borská pole. The main problem of heat pump cooperation with PV mod-ule is in different time distribution of heat demand and maximal production of electricity. Maximal solar irradiance on surface of PV module occurs during the longest days in summer months, while thermal losses of heated building are very small in this period. Surplus thermal energy could be used for heating of domestic water. Also thermal energy storage comes into question. At present with continuously increasing number of installations of renewable sources in residential sector and with purchase price lowering, the most efficient utilization of such produced energy will be required. In this paper I present one of possible solutions based on increasing of efficiency of photovoltaic (PV) cell by cooling its surface by heat pump. Assumption of increasing efficiency comes from specific characteristics of PV cell materials. For optimal operation of photovoltaic module we need to calculate the amount of thermal energy converted by solar cell from incoming solar light. This amount has to be di-verted off the surface of PV cell by heat pump. However, this heat serves only as a additional source for heat pump. Output power of heat pump can be projected on calculation of thermal energy demand for considered building. For this calculation I used the most common method for heat transmission through external walls of the building. For visualization of annual heat demand and for rough estimation of thermal energy produced by PV module I performed these calculations with average temperature and solar irradiance on m2. I obtained this data from a meteorological station located in Plzeň ? Borská pole. The main problem of heat pump cooperation with PV mod-ule is in different time distribution of heat demand and maximal production of electricity. Maximal solar irradiance on surface of PV module occurs during the longest days in summer months, while thermal losses of heated building are very small in this period. Surplus thermal energy could be used for heating of domestic water. Also thermal energy storage comes into question. At present with continuously increasing number of installations of renewable sources in residential sector and with purchase price lowering, the most efficient utilization of such produced energy will be required. In this paper I present one of possible solutions based on increasing of efficiency of photovoltaic (PV) cell by cooling its surface by heat pump. Assumption of increasing efficiency comes from specific characteristics of PV cell materials. For optimal operation of photovoltaic module we need to calculate the amount of thermal energy converted by solar cell from incoming solar light. This amount has to be di-verted off the surface of PV cell by heat pump. However, this heat serves only as a additional source for heat pump. Output power of heat pump can be projected on calculation of thermal energy demand for considered building. For this calculation I used the most common method for heat transmission through external walls of the building. For visualization of annual heat demand and for rough estimation of thermal energy produced by PV module I performed these calculations with average temperature and solar irradiance on m2. I obtained this data from a meteorological station located in Plzeň ? Borská pole. The main problem of heat pump cooperation with PV mod-ule is in different time distribution of heat demand and maximal production of electricity. Maximal solar irradiance on surface of PV module occurs during the longest days in summer months, while thermal losses of heated building are very small in this period. Surplus thermal energy could be used for heating of domestic water. Also thermal energy storage comes into question.
dcterms:title
Využití tepelného čerpadla pro chlazení fotovoltaického panelu Utilization of heat pump for cooling of photovoltaic module Využití tepelného čerpadla pro chlazení fotovoltaického panelu
skos:prefLabel
Využití tepelného čerpadla pro chlazení fotovoltaického panelu Utilization of heat pump for cooling of photovoltaic module Využití tepelného čerpadla pro chlazení fotovoltaického panelu
skos:notation
RIV/49777513:23220/10:43899167!RIV12-MSM-23220___
n3:aktivita
n14:P
n3:aktivity
P(1M06059)
n3:dodaniDat
n10:2012
n3:domaciTvurceVysledku
n18:1925709
n3:druhVysledku
n8:D
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
297864
n3:idVysledku
RIV/49777513:23220/10:43899167
n3:jazykVysledku
n6:cze
n3:klicovaSlova
Photovoltaic cell, photovoltaic module, heat pump, building heating
n3:klicoveSlovo
n4:building%20heating n4:photovoltaic%20module n4:Photovoltaic%20cell n4:heat%20pump
n3:kontrolniKodProRIV
[35AD984BF47B]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Brno
n3:nazevZdroje
Proceedings of the 11th International Scientific Conference Electric Power Engineering 2010
n3:obor
n15:JA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n12:1M06059
n3:rokUplatneniVysledku
n10:2010
n3:tvurceVysledku
Polívka, Jiří
n3:typAkce
n5:CST
n3:wos
000284981100063
n3:zahajeniAkce
2010-05-04+02:00
s:numberOfPages
4
n20:hasPublisher
Technická univerzita
n16:isbn
978-80-214-4094-4
n19:organizacniJednotka
23220