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4757 - The Emporium concept: zero-energy solar energy dwellings or buildings that use energy and materials economically

Main sector: 
Energy
Action clusters: 
Citizen Focus, Sustainable Districts and Built Environment
Priority area: 
Sustainable Districts and Built Environment
City: 
Basic description: 

Wansdronk initiated the Key to Innovation 'Zeroenergy buildings with lowexergy storage'.

The building construction regards an energy producing climate system, that is composed of both lowexergy and zeroemission solar heat and infrared cool energy sources, and heat and cool thermosiphon circulations, and a prefabricated, collapsible, and above ground

heat and cool seasonal storage. The technical feasibility has been proved and confirmed.

A lowexergy system is an energy system that aims at the lowest exergy loss between on the one hand the requested energy, and on the other hand the produced, distributed, stored and delivered energy. For a thermal energy system this means that all temperatures within the system are as close as possible to that of the requested heating and cooling media.

Energy production (quantity) with a high exergy value (quality) requires a high effort of sustainable energy sources, so that low exergy systems using sustainable energy sources will be cheaper.

Exergy regards the quality of energy carriers/media, while energy regards the quantity or energy content. The energy content of natural gas is 35 MJ/m3 and has the same potential exergy value, given a 2,500 ˚C as temperature when burned and converted into other energy forms, like electricity. From this 2,500 ˚C source, the residual 1,000 ˚C heat can be used to bake stones, 500 ˚C to bake bread, 100 ˚C to boil water, and with the remaining residual 50 ˚C heat a whole building can be heated. This means that in case of direct consumption of natural gas for building heating 97% of the quality (50 ˚C against 2,500 ˚C) is lost through the chimney.

Focus area: 

Primary

Sustainable Districts and Built Environment

Additional

Business Models, Procurement and Funding

Expected contribution: 

Building concept

The Emporium building concept regards zeroenergy solar energy dwellings or buildings that use energy and materials economically. This construction can provide the living climate according to current standards for the occupants.

It regards a lowexergy system where temperatures of produced, distributed, stored and delivered energy for thermal purposes are as close as possible to that of the requested heating and cooling media.

A warm water storage container and collectors provide the space heating and hot water supply, and a cold water storage container and collectors deliver the space cooling and cooling source for the refrigerator. The water circulates without pumps; instead it uses thermosiphon, and therefore requires no highgrade energy such as electricity or fuel.

A lightweight construction supports the water storage containers. This mass of water also replaces the hot and cold accumulating capacity of the building mass. The building concept is suitable for freestanding, connected, or highrise homes or utility buildings in all climate zones.

The storage systems can also facilitate the storage needs of nearby district heating systems and load management of the electricity system.

 

Energy system

The building construction regards an energy producing climate system, that is composed of both lowexergy and zeroemission solar heat and infrared cool energy sources, and heat and cool thermosiphon circulations, and a prefabricated, collapsible, and above ground heat and cool seasonal storage. The technical feasibility has been proved and confirmed.

A lowexergy system is an energy system that aims at the lowest exergy loss between on the one hand the requested energy, and on the other hand the produced, distributed, stored and delivered energy. For a thermal energy system this means that all temperatures within the system are as close as possible to that of the requested heating and cooling media.

Energy production (quantity) with a high exergy value (quality) requires a high effort of sustainable energy sources, so that low exergy systems using sustainable energy sources will be cheaper.

Exergy regards the quality of energy carriers/media, while energy regards the quantity or energy content. The energy content of natural gas is 35 MJ/m3 and has the same potential exergy value, given a 2,500 ˚C as temperature when burned and converted into other energy forms, like electricity. From this 2,500 ˚C source, the residual 1,000 ˚C heat can be used to bake stones, 500 ˚C to bake bread, 100 ˚C to boil water, and with the remaining residual 50 ˚C heat a whole building can be heated. This means that in case of direct consumption of natural gas for building heating 97% of the quality (50 ˚C against 2,500 ˚C) is lost through the chimney.

Contribution to the EIP: 

Delivery

Savings expected

The dwelling concept will have zeroenergy consumption over the year. The savings can be set equal to the energy consumption of presently constructed new dwellings, consisting of gas for space heating and hot water and electricity for space cooling.

Energy supplied

The building concept uses evacuated tubes (semitransparent) facade elements, and 50 ˚C to 90 ˚C indoor and above ground heat storages, to produce the indoor climate heating and hot potable water energy. Only using the facades for heat and cool production keeps the

roofs available for solar electricity production.
 

Results expected in

2014 prototype preparation

2015 prototype realization

2016 and beyond prototype completion

 

Posted by

Renee Wansdronk (Renee Wansdronk)'s picture
Mr
Renee
Wansdronk
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