Heat source dimensioning: Difference between revisions

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{{Article table
{{Article table
|commercial_product1=InstalSystem 5
|commercial_product1=InstalSystem 5
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|category1          =InstalSystem 5#Typowe problemy
|category1          =InstalSystem 5#Tips&Tricks
|category_name1    =FUNCTION AND TOOL
|category_name1    =TIP&TRICK
|c2                =
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|version1          =2020-04-05
|version1          =2022-12-14
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==Problem description==
==Problem description==
We suggest that heat source dimensioning should always be consulted with the flat station producer. In case of particular data,  one of the following solutions should be adopted.
The way in which the heat source is dimensioned depends on the type of designed installation and on the ''<IS_TS id=strs_enumidISFOZCDaneOgolneStrataCieplaCalcKindForNewPom/>'' specified in the ''<IS_TS id=rsDanogi/>'' window. <br/>[[File:HS dimensioning Method of calculating Ф.png|900 px|left|thumb|1. <IS_TS id=strs_enumidISFOZCDaneOgolneStrataCieplaCalcKindForNewPom/> selection.]]<br clear="all"/>
 
==Solution==
==Solution==
* If the heat source lacks a buffer tank - heat source dimensioning should adopt the ''<IS_TS id=sMocCalkowitaZr/>'' value.<br/>[[File:InstalSoft_-_InstalSystem_5_-_Flat_stations_-_Total_output_general_results.png|900 px|left|thumb|1. Total output.]]<br clear="all"/>
===Heating installations without <IS_TS id=StacjeMieszkaniowe/>===
* If the heat source includes a buffer tank - the indicated ''<IS_TS id=sMocCalkowitaZr/>'' value is the peak power that the buffer tank is supposed to deliver to the installation. We suggest that the heat source be dimensioned towards standard heat load of a building (or in case there are no norm calculations, towards total heat load of rooms) including not utilized heat loss of pipe-runs and losses of radiant systems to outside of source feed area.<br/>[[File:InstalSoft_-_InstalSystem_5_-_Flat_stations_-_Design_heat_load_of_building.png|900 px|left|thumb|2. Standard heat load of building.]]<br clear="all"/><br/>[[File:InstalSoft_-_InstalSystem_5_-_Flat_stations_-_Total_rooms_heat_value.png|900 px|left|thumb|3. Total rooms heat value.]]<br clear="all"/><br/>[[File:InstalSoft_-_InstalSystem_5_-_Flat_stations_-_general_results_heating.png|900 px|left|thumb|4. Heat loss of pipe-runs, losses of radiant systems.]]<br clear="all"/>
In order to dimension the source in certain cases, the following values should be taken into account:
* ''<IS_TS id=sOblStrataCieplaSumBud/>'' in the case when selected ''<IS_TS id=strs_enumidISFOZCDaneOgolneStrataCieplaCalcKindForNewPom/>'': ''<IS_TS id=rsOZCPomieszczenieStrataCieplaCalcKindWgNormSC/>'':<br clear="all"/>[[File:HS dimensioning Design heat load hs.png|900 px|left|thumb|2. <IS_TS id=sOblStrataCieplaSumBud/> for the installations without <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>or ''<IS_TS id=strLacznaMocPomieszczenHeating/>'' in the case when selected ''<IS_TS id=strs_enumidISFOZCDaneOgolneStrataCieplaCalcKindForNewPom/>'': ''<IS_TS id=rsOZCPomieszczenieStrataCieplaCalcKindWgWskaznika/>'' or ''<IS_TS id=rsOZCPomieszczenieStrataCieplaCalcKindNarzucona/>'':<br clear="all"/>[[File:HS dimensioning Spec. total rooms heat loss ΦH.png|900 px|left|thumb|<br/>3. <IS_TS id=strLacznaMocPomieszczenHeating/> for the installations without <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>
* ''<IS_TS id=sSumaWydajnosciZDzialekNieuwzglednione/>'';
* ''<IS_TS id=sSumaStratyOPNaZwenatrz/>''.<br clear="all"/>[[File:HS dimensioning Not utilized hl Losses of rad syst.png|900 px|left|thumb|4. <IS_TS id=sSumaWydajnosciZDzialekNieuwzglednione/> and <IS_TS id=sSumaStratyOPNaZwenatrz/> for the installations without <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>
 
===Heating installations with <IS_TS id=StacjeMieszkaniowe/>===
For such type of installations there are two variants for the heat source dimensioning in the ''heating period'':
* if the heat source lacks a buffer tank - heat source dimensioning should adopt the ''<IS_TS id=sMocCalkowitaZr/>'' value; <br/>[[File:HS dimensioning Total output.png|900 px|left|thumb|5. <IS_TS id=sMocCalkowitaZr/> for the installations with <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>
* if the heat source includes a buffer tank - the indicated ''<IS_TS id=sMocCalkowitaZr/>'' value is the peak power that the buffer tank is supposed to deliver to the installation. For dimensioning the heat source the following values should be taken into account:
** ''<IS_TS id=sOblStrataCieplaSumBud/>'' – in the case when thermal calculations of a building based on ''<IS_TS id=rsOZCPomieszczenieStrataCieplaCalcKindWgNormSC/>'';<br/>[[File:HS dimensioning Design heat load.png|900 px|left|thumb|6. <IS_TS id=sOblStrataCieplaSumBud/> for the installations with <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>
** the total value of: ''<IS_TS id=strLacznaMocPomieszczenHeating/>'', ''<IS_TS id=sSumaWydajnosciZDzialekNieuwzglednione/>'' and ''<IS_TS id=sSumaStratyOPNaZwenatrz/>'' - in the case when thermal calculations of a building based on ''<IS_TS id=rsOZCPomieszczenieStrataCieplaCalcKindWgWskaznika/>'' or ''<IS_TS id=rsOZCPomieszczenieStrataCieplaCalcKindNarzucona/>''.<br/>[[File:HS dimensioning Spec. total rooms heat loss ΦH fs.png|900 px|left|thumb|7. <IS_TS id=strLacznaMocPomieszczenHeating/> for the installations with <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>[[File:HS dimensioning Not utilized hl Losses of rad syst fs.png|900 px|left|thumb|8. <IS_TS id=sSumaWydajnosciZDzialekNieuwzglednione/> and <IS_TS id=sSumaStratyOPNaZwenatrz/> for the installations with <IS_TS id=StacjeMieszkaniowe/>.]]<br clear="all"/>
 
===<IS_TS id=SumaMocyCWUStacjiWTrybieCWU/>===
In summer period, when the flat stations are operating in DHW heating mode, the heating capacity ordered from the heat source can be reduced. The value of ''<IS_TS id=SumaMocyCWUStacjiWTrybieCWU/>'' can be found in the ''<IS_TS id=strWynikiOgolneOgrzewania/>''.<br/>[[File:HS dimensioning Total output summer fs.png|900 px|left|thumb|9. <IS_TS id=SumaMocyCWUStacjiWTrybieCWU/>.]]<br clear="all"/>
 
===The difference between the <IS_TS id=IloscCieplaNiesionaPrzezDzialkeLong/> on the first section from the heat source and <IS_TS id=sMocCalkowitaZr/> of the heat source===
There is a difference between the values of ''<IS_TS id=IloscCieplaNiesionaPrzezDzialkeLong/>'' on the first section from the heat source and ''<IS_TS id=sMocCalkowitaZr/>'' of the heat source based on the results of the heating system calculations. The reason is in the different methods of calculation.
''<IS_TS id=IloscCieplaNiesionaPrzezDzialkeLong/>'' of the first section is calculated from required output of the heating system and it is summarized sequentially by pipe sections.<br/>[[File:Differens output first section.png|900 px|left|thumb|10. <IS_TS id=<IS_TS id=IloscCieplaNiesionaPrzezDzialkeLong/> on the first section from the heat source.]]<br clear="all"/>
'''''ATTENTION! The value of the <IS_TS id=IloscCieplaNiesionaPrzezDzialkeLong/> is for information only.'''''<br clear="all"/>
<br/>''<IS_TS id=sMocCalkowitaZr/>'' of the heat source includes:
* for ''<IS_TS id=ScopeInstalacjeKonwekcyjneShort/>'' heating systems - ''<IS_TS id=strSumaWydajnosciZGrzejnikow/>'' and ''<IS_TS id=sSumaWydajnosciZDzialekNieuwzglednione/>'';<br/>[[File:Differens total output convectional.png|900 px|left|thumb|11. <IS_TS id=sMocCalkowitaZr/> for <IS_TS id=ScopeInstalacjeKonwekcyjneShort/> heating systems.]]<br clear="all"/>
* for ''<IS_TS id=NazwaZakladkiOP/>'' heating systems - ''<IS_TS id=strSumaWydajnosciZOP/>'', ''<IS_TS id=sSumaWydajnosciZDzialekNieuwzglednione/>'' and ''<IS_TS id=sSumaStratyOPNaZwenatrz/>''.<br/>[[File:Differens total output radiant s.png|900 px|left|thumb|12. <IS_TS id=sMocCalkowitaZr/> for <IS_TS id=NazwaZakladkiOP/> heating systems.]]<br clear="all"/>
 
 
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[[Category:InstalSystem 5]]
[[Category:InstalSystem 5]]
[[Category:TYPICAL PROBLEM]]
[[Category:TIP&TRICK]]


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<br class="iwlinks"/>[[zh-cn:采用户用换热机组系统的热源能力的确定|采用户用换热机组系统的热源能力的确定]]
<br class="iwlinks"/>[[pl:Wymiarowanie źródła ciepła|Wymiarowanie źródła ciepła]][[zh-cn:采用户用换热机组系统的热源能力的确定|采用户用换热机组系统的热源能力的确定]]

Latest revision as of 23:03, 12 June 2026

Product InstalSystem 5
Type of article TIP&TRICK
Source for translation 2022-12-14


Problem description

The way in which the heat source is dimensioned depends on the type of designed installation and on the specified in the window.

1. selection.


Solution

Heating installations without

In order to dimension the source in certain cases, the following values should be taken into account:

  • in the case when selected : :
    2. for the installations without .

    or in the case when selected : or :

    3. for the installations without .

  • ;
  • .
    4. and for the installations without .

Heating installations with

For such type of installations there are two variants for the heat source dimensioning in the heating period:

  • if the heat source lacks a buffer tank - heat source dimensioning should adopt the value;
    5. for the installations with .

  • if the heat source includes a buffer tank - the indicated value is the peak power that the buffer tank is supposed to deliver to the installation. For dimensioning the heat source the following values should be taken into account:
    • – in the case when thermal calculations of a building based on ;
      6. for the installations with .

    • the total value of: , and - in the case when thermal calculations of a building based on or .
      7. for the installations with .

      8. and for the installations with .

In summer period, when the flat stations are operating in DHW heating mode, the heating capacity ordered from the heat source can be reduced. The value of can be found in the .

9. .


The difference between the on the first section from the heat source and of the heat source

There is a difference between the values of on the first section from the heat source and of the heat source based on the results of the heating system calculations. The reason is in the different methods of calculation.

of the first section is calculated from required output of the heating system and it is summarized sequentially by pipe sections.

10. on the first section from the heat source.


ATTENTION! The value of the is for information only.

of the heat source includes:

  • for heating systems - and ;
    11. for heating systems.

  • for heating systems - , and .
    12. for heating systems.


If you have any comments on this article, please send us a short message at info@instalsoft.com