LBN 003-01 PDF

Regulations Regarding Latvian Building Code LBN Average monthly .. the difference is m s-1, but difference with LBN value is and. lbn 01 pdf to jpg. Quote. Postby Just» Tue Aug 28, am. Looking for lbn 01 pdf to jpg. Will be grateful for any help! Top. Regulations regarding the Latvian Building Code LBN “Construction Climatology”. Issued pursuant to. Section 2, Paragraph four of the Construction Law.

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Q apk,n,kopa,zs – total energy required for the heating of all building zones zswhen using a combination of definite systems Wh.

Generation of a test reference year for Alūksne, Latvia

Unused transmission and ventilation heat flow is generated at time periods or intervals for example, at nightwhen cooling is not needed, but it can be necessary at other time periods or intervals for example, during the day. As concerns windows on the east and west side for barriers at the north end, the shading correction shall not be required. Latvia State Standard Solar heat gains in a building zone for a definite month or season shall be calculated by using the following formula:. The following formula shall be used for determining the set-point temperature for cooling in one zone calculation:.

The time constant t of a building or building zone characterises the internal thermal inertia of a conditioned zone in the heating and cooling period respectively. Q apk,n – energy required for heating, taking into consideration “holiday” periods Wh.

The actual duration of the heating season shall be determined according to the number of hours in the season, when the relevant system was running for example, pumps, fans. Running time part f iek. For buildings in operation a measured and calculated energy rating shall be validated in accordance with Chapter 6 of this Regulation.

Procedure for Calculating Internal Heat Gains.

The dynamic method models thermal resistance, thermal capacity and internal and solar heat gains in the building or building zones. Q apk,n,kopa,z – total energy required for the heating of the building zone zwhen using a combination of definite systems Whwhich shall be determined in accordance with Paragraph of this Regulation. TRY selection process should include the most recent meteorological observations and should be periodically renewed to reflect the long-term climate change.

When assessing internal heat sources, it shall be taken into consideration that not all the energy used for lighting is an internal heat source for example, if lighting is located outside the building or the heat is partially released. Heat flow from other lighting elements shall be calculated taking into consideration the function of the building, utilisation of lighting and purpose of the calculation.


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The reduction factor for cooling with unoccupied periods a samz,dz shall be calculated by using the following formula:.

Lb required for heating and cooling calculated for a year Q kop,apr shall be calculated by using the 4 th formula and individually calculating the energy required for heating and cooling that has been lbj by using the 5 th and 6 th formula:. When using the dynamic method, thermal resistance, thermal capacity output and heat gains from solar and internal thermal resources in the building or building zone shall be taken into consideration.

In this case, calculations shall be carried out individually for each zone according to the procedure for one zone calculation. Energy required for heating and cooling shall be the main data of the energy balance of technical building systems. Losses of a system can become internal thermal energy gains of a building, if they are recoverable.

Individual buildings for example, schools substantially reduce the energy required for heating or cooling during the “holiday” heating or cooling period.

If an assessment period is not the full number of years, the annual energy consumption shall be obtained by using the extrapolation method.

Generation of a Test Reference Year for Alūksne, Latvia

The consumed amount of delivered energy shall be determined in one of the following manners:. If there is a common accounting of thermal energy for the heating and domestic hot water systems in a building, then, on the basis of data regarding the energy and hot water consumption in the period when heating is not used, the following calculation simplification shall be admissible for existing buildings – the energy consumption in the water supply system for heating and circulation of hot water for a year period shall be calculated by using linear extrapolation.

The total auxiliary energy required for ventilation systems shall be determined according to the Standard LVS EN Specification of Boundaries and Zones of a Building.

Q dz,n,N – energy required for cooling in a continuous cooling period, assuming that the set-point temperature is controlled on all days of the month Wh 00-301. The value of an individual air flow k supply temperature T 2,pieg,k shall be accepted in the following way:. General Requirements for the Assessment Period.


lbn 01 pdf to jpg – PDF Files

For buildings to be designed energy consumption in a domestic hot water system shall be assessed in accordance lgn Section 5. A apr – calculation area m 2which shall be determined in accordance with Sub-chapter 5. Q dz,ieg – total heat gains for cooling Whwhich shall be determined in accordance with Paragraph 84 of this Regulation.

Only energy delivered by solar energy installations and auxiliary energy, which is required for heat delivery to a building from an energy source, shall be taken into consideration in the energy balance. Proceedings of the Latvia University of Agriculture.

The dynamic effect shall be taken into consideration in calculations when introducing the gain utilisation factor for heating and the loss utilisation factor for cooling. When surveying a building, the actual internal temperature of the building shall be assessed, since lhn practice it often differs from the designed temperature, and it substantially affects the consumption indicators of the energy used for cooling and heating.

When using the steady-state method, dynamic effects, which shall be calculated by using correlation factors, shall be taken into consideration. T 2,k – temperature for the element k in the adjacent space, environment or zone o Cwhich shall be determined in accordance with Paragraph 87 of this Regulation.

Energy required for additional heat humidification shall not be included in the calculation. A coefficient that comprises characteristics of collecting areas and an area of collecting surfaces including effects from shading shall be the actual collecting area of solar heat. Classification of building constructions. A calculation area shall not include spaces in which it is not intended to maintain the internal temperature for example, non-heated cellars, attics, garages.

Q dz,ve – total heat losses for cooling through ventilation Whwhich shall be determined 003-001 accordance with Sub-chapter 5. Useful lnn per person m 2. Heat gains from solar heat sources elements of building constructions and unconditioned spaces irradiated by the sun generate from solar irradiation existing at the location of a building, as well as orientation of collecting surfaces and areas, constant shading, solar irradiation transmittance and absorption, and thermal heat transfer.

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