This document specifies methods for testing and characterizing the performance of air-to-air heat\/energy exchangers when used as devices to transfer heat or heat and water vapor between two airstreams used in ventilation systems. It also specifies methods to characterize the performance of exchangers for use in calculation of the energy performance of buildings. This document is applicable to:<\/p>\n
fixed-plate exchangers (also known as recuperators),<\/p>\n<\/li>\n
rotary exchangers, including heat wheels and total energy wheels (also known as regenerators),<\/p>\n<\/li>\n
heat pipe exchangers using a heat transfer medium, excluding those using mechanical pumping.<\/p>\n<\/li>\n<\/ul>\n
This document does not provide a method for measuring the response of exchangers to the formation of frost.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Symbols and abbreviated terms <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5 Metrics 5.1 General <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.2 Effectiveness 5.3 Pressure drop 5.3.1 Measured pressure drop 5.3.2 Standardized pressure drop <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.4 Recovery efficiency ratio 5.5 Outside air correction factor <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 5.6 Exhaust air transfer ratio 5.7 Sensible energy transfer rate for the supply airstream 5.8 Humidity transfer rate for the supply airstream 5.9 Total energy transfer rate for the supply airstream 6 General test requirements 6.1 Test apparatus <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 6.2 Installation 6.3 Static pressures 6.4 Instrument calibration <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 7 Effectiveness tests 7.1 Test requirements 7.2 Stability limits when testing effectiveness <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 7.3 Data collection period 7.4 Data sampling rates 7.5 Temperature and humidity conditions: inlets to exchanger <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 7.6 Test temperature limits 8 Pressure drop tests 9 Leakage tests 9.1 General test requirements <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 9.2 Outside air correction factor 9.3 Exhaust air transfer ratio 10 Uncertainty limits 10.1 General 10.2 Uncertainty limits for effectiveness tests 10.3 Uncertainty limits for RER <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 10.4 Uncertainty limits for measured pressure drop tests 10.5 Uncertainty limits for leakage tests 11 Inequality limits 11.1 General 11.2 Inequality limits for thermal tests <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 11.3 Inequality limits for leakage tests 12 Reporting of test results 12.1 Pressure drop test results 12.2 Leakage test results 12.3 Thermal test results <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 12.4 Uncertainties <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Annex A (informative) Example of test data collection and calculation of metrics <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Annex B (informative) Best practices <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Annex C (informative) Expression of performance metrics for use in calculation of system performance <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | Annex D (informative) Inequality limits for use when condensate flow rate can be measured <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Annex E (informative) Expressions, used in other standards, related to effectiveness as defined in this document <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Methods of test and characterization of performance for energy recovery components<\/b><\/p>\n |