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BS EN 16798-5-1:2017

$215.11

Energy performance of buildings. Ventilation for buildings – Calculation methods for energy requirements of ventilation and air conditioning systems (Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8). Method 1: Distribution and generation

Published By Publication Date Number of Pages
BSI 2017 80
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This European Standard covers the energy performance calculation of mechanical ventilation and air conditioning systems, including humidification and dehumidification. It takes into account the generation (air handling unit) and distribution (duct system) parts. It includes a simplified calculation of adiabatic cooling systems. It does not cover the emission part (calculation of the required volume flow rates and/or supply air conditions), which is covered in EN 16798-7. It does not include the calculation of heating/cooling generation. This method is focussed on large customized ventilation and air conditioning systems, typically used in commercial buildings, although the application is not restricted on the basis of building or space use type. A calculation method for ventilation systems with integrated heating/cooling generation, including domestic hot water generation, using a monthly or seasonal calculation interval or a bin method, is provided in a separate standard, EN 16798-5-2. This method does not include humidification and dehumidification or adiabatic cooling. Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in EN ISO 52000 1. NOTE 1 In CEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard might cover more than one module and one module might be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.

PDF Catalog

PDF Pages PDF Title
2 National foreword
11 1 Scope
13 2 Normative references
14 3 Terms and definitions
15 4 Symbols and subscripts
16 5 Brief description of the method
17 6 Calculation method
56 7 Quality control
8 Compliance check
57 Annex A (normative)Input and method selection data sheet — Template
A.1 General
58 A.2 References
A.3 Product description data
A.4 Product technical data
A.4.1 Duct tightness class
A.4.2 Air handling unit tightness class
59 A.4.3 Heat recovery leakage and outdoor air factors
A.4.4 Nominal heat recovery temperature efficiency and constants for the velocity dependence
60 A.4.5 Humidity recovery efficiency and constants for the calculation
A.4.6 Value for adiabatic cooling humidifier efficiency
A.4.7 Values for cooling and heating coil calculation
61 A.4.8 Air handling unit related values
A.4.9 Specific pump energy for humidification
62 A.5 System design data
A.5.1 Qualitative process design data choices
A.5.2 Fan motor heat recovery factors
A.5.3 Quantitative process design data choices
63 A.5.4 Limit values for the defrost control
A.5.5 Process control options
A.5.6 Heat recovery control options
64 Annex B (informative)Input and method selection data sheet — Default choices
B.1 General
B.2 References
65 B.3 Product description data
B.4 Product technical data
B.4.1 Duct tightness class
66 B.4.2 Air handling unit tightness class
B.4.3 Heat recovery leakage and outdoor air factors
B.4.4 Nominal heat recovery temperature efficiency and constants for the velocity dependence
67 B.4.5 Humidity recovery efficiency and constants for the calculation
B.4.6 Value for adiabatic cooling humidifier efficiency
B.4.7 Values for cooling and heating coil calculation
68 B.4.8 Air handling unit related default values
B.4.9 Specific pump energy for humidification
69 B.5 System design data
B.5.1 Qualitative process design data choices
B.5.2 Fan motor heat recovery factors
B.5.3 Quantitative process design data choices
70 B.5.4 Limit values for the defrost control
B.5.5 Control options
B.5.6 Heat recovery control options
72 Annex C (normative)Calculation method for ground preheating and -cooling
C.1 Calculation
C.1.1 Temperature difference
73 C.1.2 Moisture difference
74 C.1.3 Pressure losses of the heat exchanger
C.2 Data
75 Annex D (informative)Calculation method for rotary heat exchangers
D.1 Calculation
D.1.1 Heat recovery
D.1.2 Moisture recovery
D.1.2.1 Correction factor for the condensation potential
76 D.1.2.2 Correction factor for the mass flow relation other than 1
D.1.2.3 Correction factor for the air velocity
D.1.2.4 Correction factor for the rotation number
77 D.2 Data
BS EN 16798-5-1:2017
$215.11