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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The boundary of an energy rating for energy carriers gas, electricity, thermal energy and water shall be a meter, while for liquid and solid energy resources – the boundary of the storage system.

A calculated energy rating for a group of buildings may be carried out, if all of the following conditions are in force:. Mobile sun shading reduction coefficient f l,int depending on the month and orientation of the glazed surface.

Generation of a Test Reference Year for Alūksne, Latvia : Rural Sustainability Research

The gross calorific values of fuel shall be determined in accordance with Clause 2 of Ln 1 to this Regulation. Q iek – sum of internal heat gains in the calculation period Whwhich shall be determined in accordance with Sub-chapter 5. Procedure of the Validation of a Building Calculation Model. In order to adjust energy 003-10 according to lgn conditions, the values of the heating period duration and the average external temperature specified in Table 7 of LBN “Construction Climatology” shall be used.

Provisions for an Operating Mode of Internal Spaces. Q apk,n,i – energy required for heating in the definite zone in the calculation period i per hour or month Whwhich shall be determined in accordance with Sub-chapter 5.

If changes have been made to a building in the assessment period, which affect the energy performance thereof for more than 10 per cent, the previously obtained data may not be used for the assessment of the energy performance of the building. Building boundaries comprise all the building elements separating conditioned 003-001 from the outdoor environment air, ground or water and adjacent buildings or separate unconditioned spaces.

The 00-301 system energy for heating, cooling and ventilation systems shall be calculated according to the following combinations:.

Generation of a test reference year for Alūksne, Latvia

Proceedings of the Latvia University of Agriculture. The values indicated in Table 3 of this Annex are validated for barriers on the south side. System losses within the system boundaries shall be calculated in detail, while lvn the system boundaries they shall be calculated by using conversion coefficients. Losses and auxiliary 0003-01 comprise energy generation, transport, control, distribution, storage and emission. If a building is partitioned into several zones and the heat flow between the zones is not taken into consideration calculation with uncoupled zonesthen, when performing calculations, none of the heat transmission types for example, air movement shall be taken into consideration.


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.

The results of lbm study may be used in building energy simulations and heating-cooling load calculations for selected region.

Solar heat gains in a building zone for a definite month or season shall be calculated by using the following formula:. Gross calorific values of fuel shall be determined by using the net calorific coefficients of fuel, multiplying them by the conversion coefficients, which are specified in Table 1 of this Annex. Adjustments of Unoccupied Heating Periods.

F h – shading correction coefficient for the influence of the horizon in accordance with Table 1 of Annex 6 to this Regulation. For months containing “holiday” periods the energy required for heating and cooling shall be calculated separately for a continuous period and “holiday” period, and the results shall be interpolated linearly according to the ratio between “holiday” and occupied period time parts by using the following formulas:.

Heat flow from the circulation of water in domestic hot water supply systems shall be determined by using the following formula:. Thermal energy gains include internal heat gains and solar heat gains.

Required energy shall be calculated on the basis of the thermal energy balance of building zones. Active solar, wind and water energy shall not be part of the energy balance of a building. If the surface temperature of a heat source is close to the internal temperature of spaces, the actual transferred heat amount shall depend on the temperature difference of the heat source and external air temperature. Generation of a typical meteorological year for Hong Kong.

An effective solar heat collecting area of the nontransparent part of building envelopes shall be calculated by using the following formula:. In order to assess the energy saving obtained from planned energy performance improvement measures, the same building calculation model that has been used when assessing the calculated energy performance shall be used. If there are unoccupied heating periods and the provisions referred to in Sub-chapter 5.


Rural Sustainability Research Volume: Combined measures must be calculated taking into consideration the correlation thereof. As a result of calculations of several zones with thermal influence between the zones or without itthe total energy required for heating and cooling for combining operation of definite heating, cooling and ventilation systems in different zones shall be the required energy sum in the zones zsfor which a combination of different systems is used:.

A s,k – surface k with a definite orientation and slope angle effective collecting area in the relevant zone m 2which shall be determined in accordance with Paragraphs glazing and nontransparent building elements of this Regulation.

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T 1,dz – cooling temperature set for the building or building zone o Cwhich shall be determined in accordance with Sub-chapter 5.

The actual efficiency of planned energy performance improvement measures shall depend on the actual utilisation of a building. When identifying necessary energy performance improvement measures, one or several scenarios of the building energy performance improvement shall be prepared, in which definite and mutually coordinated energy performance measures shall be specified. In general, characteristics depend on the climate, time and position for example, from the sun position, ratio between the direct and dissipated irradiation.

Q dz,ve – total heat losses for cooling through ventilation Whwhich shall be determined in accordance with Sub-chapter 5. Hot water consumption data for buildings for obn an individual meter has been installed shall be obtained from the difference between two readings at the beginning and at the end of the assessment period.

Generation of a test reference year for Alūksne, Latvia [2015]

If a building is partitioned into several parts, energy required for the heating and cooling of the building shall be calculated separately for each zone. If necessary, initial data shall be adjusted, in order for a comparison of the energy performance results bln be acceptable. The average temperature of a ventilated zone shall be assessed when the exhaust fan is switched on.