21 st Century Brewery by Ziemann

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1 ZIEMANN HOLVRIEKA 21 st Century Brewery by Ziemann ZIEMANN HOLVRIEKA GmbH Technology, Research and Development Ludwigsburg / Germany

2 Basic aims of the 21 st Century Brewery If possible, without primary energy Natural sources of energy Energy from waste water Conversion of heat into cold Reduction of peak loads Use of natural cold 2

3 Federal Environment Agency New brew-house equipment 3

4 General three steps to success 3. Cross-linking of further machines and equipment 1. New machine and plant technology in the brewhouse Installation of cascade brewhouse Colibri by Ziemann Lotus by Ziemann Shark Installation of vapour condenser Energy recovery Reduction of the evaporation rate Adjustment of heat transfer surfaces 2. Optimization of periphery and supply technology New heating boiler (old boiler 1 T-Level at C for all processes) Recirculation of heat Minimization of waste heat due to insulation Replacement of old control technology of the boiler Already implemented: Heating boiler Microgasturbine Exhaust heat exchanger Absorption cooling machine Ice storage Ice Age Propane refrigeration machine Still pending: Fresnel lens Low-temperature storage Use of biogas 4

5 Former brewhouse 5

6 New brewhouse 7

refrigeration system Glycol circuit Advantages of CFCs Non-combustible, nontoxic *CFC chlorofluorocarbons Absorption refrigeration

7 Adjustment of supply technology Example: refrigeration system BEFORE CFC*-containing refrigerant 3 Compression refrigeration systems European regulation (until 2025) AFTER Natural refrigerating agent: propane gas Cooling tower Ice storage Compression refrigeration system Glycol circuit Advantages of CFCs Non-combustible, nontoxic *CFC chlorofluorocarbons Absorption refrigeration system Natural refrigerants naturally occurring in nature (carbon dioxide, ammonia, propane combustible, toxic additional monitoring required) 8

8 3. Cross-linking of further machines and equipment 1. New machine and plant technology in the brewhouse Installation of cascade brewhouse Colibri by Ziemann Lotus by Ziemann Shark Installation of vapour condenser Energy recovery Reduction of the evaporation rate Adjustment of heat transfer surfaces 2. Optimization of periphery and supply technology New heating boiler (old boiler 1 T-Level at C for all processes) Recirculation of heat Minimization of waste heat due to insulation Replacement of old control technology of the boiler Already implemented: Heating boiler Microgasturbine Exhaust heat exchanger Absorption cooling machine Ice storage Ice Age Propane refrigeration machine Still pending: Fresnel lens Low-temperature storage Use of biogas 8

High pressure hot water system 140 C Low pressure hot water system

9 Before cross-linking Natural gas Biogas Exhaust gas Hot water losses boiler C High-temperature heat Brewery processes High pressure hot water system 140 C Low pressure hot water system 95 C Current Cold production Fermentation cellar, wort cooling Room cooling 9

Own current (OC) 21 st Century Brewery After cross-linking High-temperature heat (Fresnel) Brewery processes Natural gas Biogas anaerobic Heating boiler (with waste gas heat exchanger) Peak load

10 Own current (OC) 21 st Century Brewery After cross-linking High-temperature heat (Fresnel) Brewery processes Natural gas Biogas anaerobic Heating boiler (with waste gas heat exchanger) Peak load Microgas turbine Base load HD ND High pressure hot water system C / 120 C Low pressure hot water system 95 C Absorption refrigerating machine Ice storage Fermentation cellar, wort cooling -5 C Current External current (EC) Ice Age Room cooling 11

11 Heat management 12

12 Heating boiler BEFORE AFTER 12

Microgas turbine (MGT) Savings potential Characteristics External current demand reduced Up to 100 by % of 500.

13 Microgas turbine (MGT) Savings potential Characteristics External current demand reduced Up to 100 by % of biogas are kwh possible electrical per year Power peak is reduced by Heating 100 kwmedium temperatures > 100 C Savings of 143 tons of CO2 per year 75 % of the current consumption is covered by own current Exhaust gas temperatures up to 400 C 50 % of the heat supply are covered Current-regulated (max. 100 kw electrical / 210 kw thermal ) No water-cooled motor (cf. CHP) required due to turbine technology 13

14 Quelle: brauer-bund.de 21 st Century Brewery Solar energy Flat plate collectors Vacuum tube collectors Non-concentrating systems (< 100 C) Fresnel collectors Concentrating system (well above 100 C)

15 Fresnel reflector collectors Solar thermal systems 16

16 Objective: water temperature of 180 C What to do in the event of insufficient lighting conditions Savings potential at a gross collector surface of 550 m² Annual output ~128 MWh thermal Reduction of primary energy kwh of natural gas per year Savings of kg of CO2 per year regulation of the flow in the absorber pipe too intensive solar radiation turning away the collectors 17

Waste water of brewery Savings potential

surcharges due to individual regulations

classes of process water Domestic quality

17 Waste water of brewery Savings potential Elimination of heavy contamination surcharges due to individual regulations with the wastewater treatment plants Municipal waste water < 900 mg/l CSB Water switch Water energy Biogas 2 classes of process water Domestic quality High organic load (biogas) Generation of biogas > 900 mg/l CSB 18

18 Cooling management 19

source waste heat microgas turbine 90 C up to 95 C Refrigerating agent

19 Absorption refrigeration system Heat sink Cooling tower / room heating 25 C up to 40 C Cold generation process cooling -5 C up to 15 C Heat source waste heat microgas turbine 90 C up to 95 C Refrigerating agent Solvent Water Lithium bromide Fermentation and storage tanks / wort cooler 20

Savings potential Extended exhaust gas heat recovery of the micro gas turbine of approx. 200.

900 kg of CO2 per year Absorption refrigeration system Make: TRANE Thermax Dimensions (l x w x h)

20 Savings potential Extended exhaust gas heat recovery of the micro gas turbine of approx kwh per year Thereof conversion of heat into cold ~ 70 % Savings of kg of CO2 per year Absorption refrigeration system Make: TRANE Thermax Dimensions (l x w x h) = 2,85 x 1,57 x 2,31 m Operating weight = kg EER* = 0,5 *EER = Energy Efficiency Ratio Source: Karmeliten Brauerei 20

de Principle Latent heat accumulator Phase transition of water ice = charge of the storage Phase transition of ice water =

21 Ice storage tank Calmac Construction Water-filled PE vessel Spirally wound PE pipes in the counterflow principle Heat transfer medium glycol water Savings potential Reduction of peak load by kw Principle Latent heat accumulator Phase transition of water ice = charge of the storage Phase transition of ice water = discharge of the storage Covering the cooling peak loads with the ice storage system Source: Karmeliten Brauerei Charge temperature -5 C Discharge temperature 2 C 22

22 Ice Age Cooling energy consumers brewery Source: Ziemann 22

23 Savings potential % savings of the artificially generated cold by the production of natural cold in the winter months 23

24 Total savings potential Reduction of the CO2 emissions approx. 280 tons per year This corresponds to approx. 1.4 million kwh of natural gas or 470 thousand kwh of electrical energy = ~ 60 % of natural gas trees compensate 280 t CO2 slr-foto.de 25

Dr. Verena Blomenhofer ZIEMANN HOLVRIEKA GmbH, Ludwigsburg Verena.

25 Dr. Verena Blomenhofer ZIEMANN HOLVRIEKA GmbH, Ludwigsburg Phone: +49(0) ZIEMANN HOLVRIEKA

Refrigeration Cycles MOHAMMAD FAISAL HAIDER. Bangladesh University of Engineering and Technology

Refrigeration Cycles MOHAMMAD FAISAL HAIDER LECTURER Department of Mechanical Engineering Department of Mechanical Engineering Bangladesh University of Engineering and Technology Objectives Introduce the