This European Standard covers energy performance calculation of water based storage sub-systems used for heating, for domestic hot water or for combination of these. This standard does not cover sizing or inspection of such storage systems. 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 may cover more than one module and one module may 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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4 Symbols and abbreviations 4.1 Symbols 4.2 Subscripts 5 Description of the methods 5.1 Output of the method 5.2 Extension of the method <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.3 Technologies covered and schematisation of the hot water storage system <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Principles for hot water storage systems <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 6 Calculation of storage systems 6.1 Output data <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 6.2 Calculation time steps 6.3 Input data 6.3.1 Source of data 6.3.2 Product data 6.3.2.1 Product description data (qualitative) 6.3.2.2 Product technical data <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 6.3.3 System design data 6.3.4 Control 6.3.5 Operating conditions <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 6.3.6 Constants and physical data <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 6.4 Calculation procedure 6.4.1 Applicable time-step 6.4.2 Operating conditions calculation 6.4.3 Energy calculation (storage modelled with multi volumes \u2013 Method A) 6.4.3.1 General 6.4.3.2 Step 0 Initialization <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 6.4.3.3 Step 1 6.4.3.4 Step 2 Volume to be withdrawn from the storage (domestic hot water service) <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 6.4.3.5 Step 3 – Temperature of the storage after volume withdrawn for domestic hot water service 6.4.3.6 Step 4 \u2013 Volume (Energy withdrawn) for heating service 6.4.3.7 Step 5 \u2013 Temperature of the storage unit after delivery of energy for heating service <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 6.4.3.8 Step 6 \u2013 Energy input into the storage unit 6.4.3.9 Step 7 \u2013 Re-arrange the temperatures in the storage after energy input <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 6.4.3.10 Step 8 Thermal losses and final temperature 6.4.3.11 Heat exchanger <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 6.4.4 Simplified calculation procedure (storage modelled with a single volume \u2013 Method B) 6.4.4.1 Step 1 Verification of the requirements for DHW and heating service <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 6.4.4.2 Step 2 energy balance and final temperature (without back-up) 6.4.4.3 Step 3 Energy from back up 6.4.4.4 Temperature of the heat exchanger <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 6.4.5 Thermal losses 6.4.6 Calculation of the auxiliary energy 6.4.7 Recoverable, recovered thermal losses <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 7 Quality control 8 Compliance check <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Annex\u00a0A (informative)Template for input data and choices A.1 Model information A.2 Product description data A.2.1 Storage type A.2.2 Type of energy use (services) A.2.3 Storage fuel <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | A.2.4 CE marking A.2.5 Dimension A.2.6 Energy input\/output <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | A.2.7 Multiple energy input\/output A.2.8 Stand-by thermal losses <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | A.2.9 Factors for energy recovery <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | A.3 Design data A.3.1 Localization A.3.2 Hydraulic connection A.3.3 Storage control type A.3.3.1 Type of control <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | A.3.3.2 Adaptation of thermal losses for monthly or annual step time A.4 Operative conditions for method A \u2013 hourly calculation time step <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | A.5 Operative conditions for Method B – bin, monthly or annual calculation time step <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Annex\u00a0B (informative)Default Input data B.1 Model information B.2 Product description data B.2.1 Storage type B.2.2 Type of energy use (services) B.2.3 Storage fuel B.2.4 CE marking B.2.5 Dimension B.2.6 Energy input\/output <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | B.2.7 Multiple energy input\/output B.2.8 Stand-by thermal losses <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | B.2.9 Factors for energy recovery B.3 Design data B.3.1 Localization B.3.2 Hydraulic connection B.3.3 Storage control type B.3.3.1 Type of control B.3.3.2 Adaptation of thermal losses for monthly or annual step time B.4 Operative conditions for method A \u2013 hourly calculation time step <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | B.5 Operative conditions for Method B – bin, monthly or annual calculation time step <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Annex\u00a0C (normative)Selection of methods C.1 Method A – Model based on a representation of stratified temperature in the storage C.1.1 Applicability of the stratified model C.1.2 Selection of the number of volumes to model the storage unit C.2 Method B – Model based on a representation of an homogenous temperature in the storage ` <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Annex\u00a0D (informative)Alternative presentation for Method A D.1 Step 2 – Direct withdrawal of a heat quantity (volume to withdraw) D.1.1 General <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | D.1.2 Additional D.2 Step 3 – Temperature of the storage after volume withdrawal <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | D.3 Step 6 – indirect heat input and output <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | D.4 Rearrange temperatures in the storage to a natural state <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | D.5 Heat exchanger – additional D.5.1 General D.5.2 Indirect heat input in the storage, using a solar collector loop. <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | D.5.3 Indirect heat output from the storage to the space heating service. <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Energy performance of buildings. Method for calculation of system energy requirements and system efficiencies – Space heating and DHW storage systems (not cooling), Module M3-7, M8-7<\/b><\/p>\n |