This page contains a Flash digital edition of a book.
annual delivered energy consumption, including heating, cooling, DHW preparation, mechanical ventilation, lighting and auxiliary energy needed for the building operation.

A simplified multi-zone calculation, loaded as a typical day for each month in one hour stages, is used. Climate data are specified for 4 climate zones according to the national standards which are used as input data for building physics calculation.

Zone operation profiles include occupation, lighting, indoor environment requirements and auxiliary energy. Zone operation profiles are standardized for typical zones such as offices, schools, dwellings, etc.

Building energy systems such as heating, cooling, hot tap water preparation and ventilation are included as zone assigned systems, while energy sources (e.g. boilers, co-generation unit, solar collectors etc.) are assigned in the model to the energy delivery systems.

The result of energy performance calculation for assessed building is the annual delivered energy consumption calculated over gross floor area (kWh/m2a) and classified according to the levels to the energy classes.

Notional Building Principle

The basic principle of the national EP requirement assessment is a comparison of the assessed building with a notional building. The notional building is theoretical with the same geometry, purposes and regime of usage as the assessed building.

The thermal characteristics of the components (building envelope, energy source, distribution system, etc.) are set to a reference value defined by the national standards and regulations.

The delivered energy to the assessed building must be lower or equal to the delivered energy to the notional building.

Requirements for new buildings and existing buildings

The implementing regulation of the Act sets the minimum requirements for the energy performance of new buildings and existing buildings under major renovation that must be complied with.

Major renovation means alteration to a completed building, which involves more than 25% of the overall surface area of the building shell, or a change of the technical equipment of the building that causes energy effects whose overall impact on initial energy consumption is higher than 25% of the overall energy consumption of the building.

The requirements for existing renovated buildings are the same as for new buildings. The compliance with the requirements for the energy performance of a building is demonstrated by comparing the energy performance of the assessed building with the notional building which complies with conditioning comparative parameters comprising:

The thermal/technical properties of building structures (maximum U- values, air tightness of the building envelope, etc.);

Development of required U-values in the Czech Republic.

EPBD Buildings Platform > P127_EN_Czech _Republic-June2008

Page 58

2 Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148  |  Page 149  |  Page 150  |  Page 151  |  Page 152  |  Page 153  |  Page 154  |  Page 155  |  Page 156  |  Page 157  |  Page 158  |  Page 159  |  Page 160  |  Page 161  |  Page 162  |  Page 163  |  Page 164  |  Page 165  |  Page 166  |  Page 167  |  Page 168  |  Page 169  |  Page 170  |  Page 171  |  Page 172  |  Page 173  |  Page 174  |  Page 175  |  Page 176  |  Page 177  |  Page 178  |  Page 179  |  Page 180  |  Page 181  |  Page 182  |  Page 183  |  Page 184  |  Page 185  |  Page 186  |  Page 187  |  Page 188  |  Page 189  |  Page 190  |  Page 191  |  Page 192  |  Page 193  |  Page 194  |  Page 195  |  Page 196  |  Page 197  |  Page 198  |  Page 199  |  Page 200  |  Page 201  |  Page 202  |  Page 203  |  Page 204  |  Page 205  |  Page 206  |  Page 207  |  Page 208  |  Page 209  |  Page 210  |  Page 211  |  Page 212  |  Page 213  |  Page 214  |  Page 215  |  Page 216  |  Page 217  |  Page 218  |  Page 219  |  Page 220
Produced with Yudu - www.yudu.com