BS EN 15316-3-3:2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Heating systems in buildings. Method for calculation of system energy requirements and system efficiencies Domestic hot water systems, generation
Hardcopy , PDF
07-07-2017
English
29-08-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, units and indices
5 Energy output of the domestic hot water generation
sub-system
5.1 General
5.2 Domestic hot water systems with a single
heat generator
5.3 Domestic hot water systems with multiple
heat generators
5.3.1 General
5.3.2 Domestic hot water systems with different
types of heat generators in a series
configuration
5.3.3 Domestic hot water systems with multiple
heat generators in a parallel configuration
6 Indirectly heated hot water storage vessel
7 Primary circulation pipes
7.1 General
7.2 Thermal losses by a simple estimation method
7.3 Thermal losses by a detailed calculation method
8 Direct heated domestic hot water generation devices
8.1 General
8.2 Heat generation systems in single-family dwellings
8.3 Heat generation systems others than for
single-family dwellings
8.3.1 Oil and gas fired boilers
8.3.2 Direct gas fired domestic storage water heater
8.3.3 Direct electrical heated domestic storage
water heaters
8.3.4 Alternative generators
9 Auxiliary energy
9.1 Total auxiliary energy consumption
9.2 Auxiliary energy consumption for primary circulation
pumps
9.3 Auxiliary energy consumption for direct heated domestic
hot water generation devices
10 Recoverable heat losses, recovered heat losses and
unrecoverable heat losses
Annex A (informative) - Calculation of thermal loss from a
gas or oil fired boiler in systems other
than for single family dwellings
A.1 Calculation of total boiler thermal loss
A.2 Calculation of heat loss during boiler operation
A.3 Calculation of stand-by heat loss
A.3.1 General
A.3.2 Average boiler temperature during a
stand-by period
A.3.3 Load factor of a boiler
A.3.4 Auxiliary energy consumption for a boiler
A.3.5 Nominal output efficiency of a boiler
Annex B (informative) - Thermal loss from a gas fired domestic
storage water heater
Annex C (informative) - Thermal loss from an electrical heated
domestic storage water heater
(with continuous power on)
Annex D (informative) - Thermal loss from an electrical heated
domestic storage water heater (with
timed power on)
Bibliography
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