2 Benedetto Nastasi Smart Heat sharing for high, medium and low ...€¦ · 3rdInternational...
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3rd International Conference on Smart Energy Systems and 4th Generation District HeatingCopenhagen, 12-13 September 2017
Smart Heat sharing for high, medium and low temperature Power‐To‐Heat solutions
Benedetto NastasiGianluigi Lo Basso
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Outline
• Background• Research Questions• Energy System Model• Power‐to‐Heat (P2H)• Methodology• Energy Scenarios with 30% ‐ 40% ‐ 50% of RES• Conclusions
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Background
• Age of buildings entails energy efficiency issues • Low Heating temperature or change production Energy retrofitting accounting for the constraints• 25% is the maximum integrable RES share today• RES intermittency, e.g. PV peak, overcomes 25% Smart Heating involving RES eletricity excessPower‐to‐HP to meet Heating demand effectively
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Research Questions
What Heating Technology could be involved in energy efficiency improvement but considering thedifferent temperature levels of energy needs?Heat Pumps technologies and Refurbishment What reduction in Primary Energy and RES excesscould be achieved by P2H strategy in Cities?Potential for District Heating & District Generation
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
Energy System Model
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Energy System Model
! Warning about the temperature of supplied heat !
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Energy System ModelB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Research Question 1
What Heating Technology could be involved in energy efficiency improvement but considering thedifferent temperature levels of energy needs?
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Conventional Heating supply
• High Temperature Heating (ca. 85°C) Traditional Boiler Fuel to Heat• Medium Temperature Heating (ca. 65°C) Condensing Boiler Fuel to Heat• Low Temperature Heating (ca. 45°C) Electric Heat Pump Electricity to Heat
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Transition Heating supply
• High Temperature Heating (ca. 85°C) Traditional Boiler• Medium Temperature Heating (ca. 65°C) Condensing Boiler• Low Temperature Heating (ca. 45°C) Electric Heat Pump
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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• High Temperature Heating (ca. 85°C) Traditional Boiler Cogeneration plant• Medium Temperature Heating (ca. 65°C) Condensing Boiler Gas Heat Pump• Low Temperature Heating (ca. 45°C) Electric Heat Pump RES‐based Heat Pump
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
Transition Heating supply
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Transition Heating supply
• High Temperature Heating (ca. 85°C) Cogeneration plant Fuel to Heat and Electricity• Medium Temperature Heating (ca. 65°C)Gas Heat Pump Fuel to Heat• Low Temperature Heating (ca. 45°C) RES‐based Heat Pump Electricity to Heat
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Future Heating supply
• High Temperature Heating (ca. 85°C) Cogeneration plant CO2 Heat Pump• Medium Temperature Heating (ca. 65°C)Gas Heat Pump 2‐stage Heat Pump• Low Temperature Heating (ca. 45°C) RES‐based Heat Pump Thermal RES
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Future Heating supply
• High Temperature Heating (ca. 85°C) CO2 Heat Pump Electricity to Heat• Medium Temperature Heating (ca. 65°C) 2‐stage Heat Pump Electricity to Heat• Low Temperature Heating (ca. 45°C) Thermal RES RES to Heat
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Energy System ModelB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Urban tissue and Heating
HT (City Center) MT (60’s Housing) LT (New areas)
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Interaction Heat and Electricity
• High RES EXCESS but I need a cold heat sink Traditional Boiler CO2 Heat Pump• Intermittent DHW but I expect low COP Condensing Boiler 2‐stage Heat Pump• Radiant floor heating but I need large flows Electric Heat Pump RES‐based Heat Pump
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Power‐to‐Gas (P2G) H2NG
Electrolyser efficiency
Electricity Node
RES fraction
Mixing section
Primary Energy
H2
, , · 1 ,
,
,
, , ,
, , , , , ,
,
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Power‐to‐Gas (P2G)
https://doi.org/10.1016/j.energy.2016.03.097
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Power‐to‐Gas (P2G)
https://doi.org/10.1016/j.ijhydene.2017.07.149
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Power‐to‐Heat (P2H)
HPx
Grid
RES
CHP
Electricity
Heating
E
H
, , , , , (1)
, , , , (3)
,
, ,(2)!
Electricity Node
Heat Node
Objective Function
Share of RES
BOIx
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
Fuel, , ,
, (4)
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Methodology
• Power‐To‐Heat Ratio as Cities KPI Ratio between Electricity and Heating demand• Share of heating demand quality from database TABULA/episcope project with climate data• Normalized heating demand to check progressHT/MT/LT share to assess readiness for RES• P2H adption by RES excess for substituting supply
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Reference Urban Energy Systems
• RomeHT 70% MT 20% LT 10%• BerlinHT 40% MT 50% LT 10%• CopenaghenHT 20% MT 40% LT 40%Source: TABULA/episcope project
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Research Question 2
What reduction in Primary Energy and RES excesscould be achieved by P2H strategy in Cities?How much Renewable is the delivered Heat?
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Reference Energy scenariosB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
RM BER KPH
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Reference Energy scenariosB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
RM BER KPH
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Energy scenarios at increasing RESB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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P2H scenarios at increasing RESB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Energy scenarios at increasing RESB. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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Conclusions
• Temperature levels are a key technological driver • Grid efficiency affects Heating efficiency Electrification entails enhancing Grid Power• P2H has high potential if combined with retrofit• High RES situation can be firmed by HP feeding Smart Heating to share RES excess as benefitDistrict Heating as a temporary cold heat sink
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017
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For any suggestion or further information please contact:
researchgate.net/profile/Benedetto_Nastasi/
Thank you for your attention!
B. Nastasi, G. Lo Basso Smart Heat sharing for high, medium and low temperature Power-To-Heat solutions
3rd International Conference on Smart Energy Systems and 4th Generation District Heating, Copenhagen, 12-13 September 2017