Periodic Reporting for period 2 - DEW-COOL-4-CDC (Low Energy Dew Point Cooling for Computing Data Centres)
Berichtszeitraum: 2019-01-01 bis 2022-10-31
Several alternative cooling modes, e.g. adsorption/absorption, ejector, and evaporative types, have certain level of energy saving potential but exhibit some inherent problems that have restricted their wide applications in CDCs. By bringing together the distinguished EU and Chinese experts in dew point cooling R&D and manufacturing, CDC cooling system design, CDCs operation and management, and CDCs policy making and standardization, this international staff exchange programme will develop the design theory, computerised tool and technology prototypes for a novel CDC dew point cooling system.
The overall aim of the proposed staff-exchange-based research & innovation programme is to develop the design theory, computerised tool and technology prototypes for a novel dew point cooling system, by bringing together the key people in both cooling and CDC sectors who have the right and complementary skills/expertise. Such a system, comprising a few critical and highly innovative components (i.e. dew point air cooler, adsorbent sorption/regeneration cycle, micro-channels loop heat pipe based CDC heat recovery system, paraffin/expanded-graphite based heat storage/exchanger, and internet-based intelligent monitoring and control system), is expected to achieve 60% to 90% of electrical energy saving and have a comparable initial cost ccompared to traditional CDC air conditioning systems, thus removing the above outstanding problems remaining with the existing CDC cooling systems.
WP1. Development of the CDC dew point cooling system design framework and database (100% DONE). Investigation of the CDC space layout and load profile, investigation of the general profile of the CDC dew point cooling system and database development are the three fulfilled parts.
WP2. Development, optimisation and characterisation of a CDC dew point air cooler (100% DONE). A second level computer numerical simulation and optimisation.
WP3. Development, optimisation and characterisation of a novel adsorbent sorption/regeneration cycle (100% DONE). Selection and characterisation of the adsorbent material and bed structure, computer numerical simulation and optimisation of the sorption/regeneration cycle are the main part have been done so far.
WP4. Development, optimisation and characterisation of the MCLHP based CDC waste heat recovery system (100% DONE). Computer numerical simulation / optimisation of the MCLHP have been completed.
WP5. Development and characterisation of the heat storage/ exchanger (100% DONE). Computer numerical simulation and optimisation for the system has been finished.
WP6. Development, characterisation of an internet-based intelligent system (100% DONE). Control theory & approach and associated computer set-up has been done.
WP7. Development of the CDC cooling design theory and associated computerised tool. (100% DONE). Cooling design theory has been completly developed.The associated computerised tool has been successfully developed.
WP8. Case studies – 4 projects. (100% DONE) 4 Data center has been fully investigated and related case study has been carried out. The design, installation, and operation process of the DPC system are reviewed and validated.