Cooling with Compact Absorption Chillers
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1 Cooling with Compact Absorption Chillers Roland Hellmer Vattenfall Europe Wärme AG Business Affairs, Berlin
2 Decentralize compact absorption and business opportunities 170 MW in total
3 Overall technical concept for based cooling
4 Compact absorption chiller and modular structure
5 Capacity range of the compact 50kW- absorption chiller
6 Innovative elements of the compact absorption chiller Low temperature operation possible minimum 60 C High temperature spread in (designed for 90/74 C) High pressure design PN10(16) Compact unit, low-weight design High efficiency (COP 0,8) Dry re-cooling concept (up to 45 C re-cooling temp.) Cold water temperatures between 5 C and 50 C possible Integrated vacuum system Control design for total cooling asset (incl. re-cooler) Minimum auxiliary energy demand
7 specific price in per kw Cost characteristics of the compact absorption chiller investment costs in comparison traditional absorption chiller prototype chiller compression chiller cooling capacity / kw source:
8 Indoor climate and customer perception 60 % of interviewed persons made already bad experience on ordinary air conditioning Inconvenient air conditioning with extreme difference of indoor temperature to ambient air temperature Drafty / dry / bad air Air conditioning causes health problems Our approach Cooling, but no air conditioning Cold water supply ~16 C
9 Fan coil technology for retrofit in existing buildings
10 Fan coil realization at Vattenfall
11 DC Compact: Compact absorption machines in pilot applications for warm District Cooling Subject of the project European wide roll out of different technical concepts by using compact absorption chillers ( kw) for based cooling. Development of individual business concepts for cooling. Utilities show in pilot applications the benefits of the compact absorption chiller and create their own business cases for cooling. National technical consultants are coached on the finding in pilots in Germany and Sweden to support the utilities in the technical setup of the pilot installations during the roll out phase Pilots (examples): Cooling in existing buildings (up to 300 kw) Hybrid cooling in data centers 20 C distr. heat return temperature in winter Technical setup Project setup Coaches Coaches Knowledge transfer AGFW (project partner), supported organized by by AGFW BS Nova Apparatebau GmbH Vattenfall Europe Wärme AG AGFW, supported by BS Nova Apparatebau GmbH Vattenfall Europe Wärme AG Knowledge transfer organized by AGFW National technical consultants National* technical consultants Technical implementation Technical support support Project partners: AIT (AT) *): minimum 1 per country with pilots Hamreco (SWE) utilities AIT Midroc (AT)(FIN,SWE) coaches Hamreco Politecnico (SWE) (IT) scientific bodies RMN Ing. (GER, NL) Midroc (SWE) RMN Ing. (GER, NL) up to 10 pilots up to 15 utilities with pilot installations District heating customers in AUT FIN GER A2A (IT) IT Göteborg Energi (SE) NL Halmstads Energi och Miljö (SE) SWE Vattenfall (GER, SE) Nuon (NL) Co-financed by European Commission Network of Eco-Innovativion Financiers
12 DC Compact: Dissemination of information beyond DC compact AUT DK Selected investors 10 pilots DHC+ dissemination channels: Performance assessment scheme Project website Networking conference Funding opportunity workshop Web matching platform entrepreneurs other SWE EU-wide investors & entrepreneurs PL IT FIN GER
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