GAS HEAT PUMPS WORKSHOP 01 st & 02 nd December 2011 Saint-Denis/Paris. Dr. Belal Dawoud. Viessmann Werke Allendorf GmbH Viessmann Strasse, 1

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1 Vorlage Viessmann Gas Driven Sorption Heat Pumps GAS HEAT PUMPS WORKSHOP 01 st & 02 nd December 2011 Saint-Denis/Paris Dr. Belal Dawoud Manager R&D Thermally Driven Heat Pumps Viessmann Werke Allendorf GmbH Viessmann Strasse, Allendorf/Eder

2 Viessmann Gas Driven Sorption Heat Motivation Pumps Traditional gas heating systems has reached the maximum efficiency with the condensing boiler technology In addition gas condensing boilers are not considered as regenerative The market is slowly approaching saturation for both gas utilities and heating appliance manufacturers Sorption heat pumps increases the gas utilization efficiency of condensing boilers by acquiring environmental heat Sorption heat pumps are regenerative Accordingly, Viessmannconsiders them as the logical successor technology of condensing boilers Viessmann Thermally Driven Sorption Heat Pumps Vorlage

3 Vorlage Viessmann Gas-Fired Adsorption Heat Pump VITOSORP 200F Zeolite Compakt Heating Appliance Features at a glance Status of lab and field test units Unique features of Viessmann technology Status, advantages and perspectives

4 Viessmann Gas-FiredZeoliteCompact Heating Appliance Features at a glance Hybrid Heating Appliance: Heating Power Modulation: 1,6 to 10 kw (1 to 7) Booster capacity for DHW: 15 kw SGUE Heating (VDI ): 135 % (Hi 35/28 C) SGUE Heating (VDI ): 125 %(Hi 55/45 C) Ambient Heat Source: 2013 GHS From 2014 also Solar Working pair completely environment friendly Installation,maintenance and service analog to condensing boiler compact units Gas-Fired Adsorption Heat Pump in the dimensions of Viessmanncompact heating appliances Dimensions: BxHxT: 600x595x1875 mm Weight : <170 kg (separable in two parts) Viessmann Thermally Driven Sorption Heat Pumps Vorlage

5 Vorlage Viessmann Gas-Fired Adsorption Heat Pump Status of Lab and Field test units 1 Lab unit in operation at E.ON Ruhrgas 1 Lab unit being prepared for DBI 5 Field test units running since October Field test units for installation in autumn 2011

6 Unique Features of Viessmann Zeolite Compact Appliance Heat Pump Module with a falling film evaporator Viessmann Patented Process Desorption / Compression Phase Adsorption / Suction Phase 1,0 kwh 1,0 kwh Viessmann Thermally Driven Sorption Heat Pumps Vorlage Condenser 0,4 kwh Evaporator 0,4 kwh Sprinkling pump off Sprinkling pump on

7 Vorlage Unique Features of Viessmann Zeolite Compact Appliance Zeolite coating of the adsorber heat exchanger Zeolite is a ceramic (very low heat conductivity) High zeolite surface area is necessary for the mass transfer process Viessmann Patented Process

8 Vorlage Unique Features of Viessmann Zeolite Compact Appliance Hydraulic concept Viessmann patented Process Heizungsvorlauf Sorberpumpe Heizungspumpe Abgas Vitodens 200 Wärmezelle Sorber Nachschalt - Heizungsrücklauf Wärmetauscher Kondensat Solepumpe

9 Viessmann Gas-Fired Adsorption Heat Pump Status, advantages and perspectives Status: Serial production development started Market launch: with GHS Advantages: Gas savings of 20 to 25% compared with condensing boilers Ambient heat source: 1/3 of that required for a vapor compression HP of same capacity Depths of the required GHS (48 m for new houses and 62 m for modernized houses) No need for heating puffer tanks Quite operation, In-house installation possible Zeolite heat pump module is maintenance free Maintenance work analog to condensing boilers Perspectives: Solar as an environmental heat source (2014) Natural und Active Cooling (2015) Next Generation Zeolite with SHGUE >140% (2016) Viessmann Thermally Driven Sorption Heat Pumps Vorlage

10 Vorlage Viessmann Gas-Fired Absorption Heat Pump VITOSORP 300W Working principle Features at a glance Status, advantages and perspectives

11 Vorlage Viessmann Gas-Fired Absorption Heat Pump Working Principle

12 Viessmann Gas-Fired Absorption Heat Pump Features at a glance Wall mounted hybrid appliance: Gas-fired absorption heat pump and a condensing boiler Seasonal heating GUE > 1.4 (55/45 C) Seasonal heating GUE > 1.3 (65/50 C) High modulation range (1.6 to 14 kw) Dimensions: BxHxT: 600x595x900 mm Weight : <90 kg Low noise Installation & Maintenance comparable to condensing boilers Viessmann Thermally Driven Sorption Heat Pumps Vorlage

13 Viessmann Gas-Fired Absorption Heat Pump Status, advantages and perspectives Status: Predevelopment phase One field test has been successfully carried out (1x air-sourced with active cooling and 2x ground heat sourced with natural and active cooling Next field test October 2012 Market launch: (with GHS) Advantages: Gas savings of 30 to 40% compared with condensing boilers Ambient heat source: 2/5 of that required for a vapor compression HP of same capacity Depths of the required GHS (62 m for new houses and 81 m for modernized houses) No need for heating puffer tanks Quite operation, In-house installation possible Heat pump is maintenance free Maintenance workanalog to condensing boilers Perspectives: Air as a heat source (2016) Natural und Active Cooling (2016) Viessmann Thermally Driven Sorption Heat Pumps Vorlage

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