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Elope-Analysis 1. Energy consumption at IWZ Campus floor space electricity (all

93.123 sqm

buildings) gas (main

78.559 sqm

building) district heat

19.564

(old building)

sqm

active energy

load peak

5.600 MWh/a

60 kWh/(m²a)

1.664 kW

10.400 MWh/a

132 kWh/(m²a)

6.124 kW

1.379 MWh/a

70 kWh/(m²a)

Electricity consumers: light, multimedia, laboritaries, building equipment, mensa, decentral water heating Warmth consumers: heating

Picture 1: building standards


Picture 2: energiestardards as per energiepass (www.wikipedia.de)

- Heat Conspumtion o

main building: WSVO 1995

o

old building: achives EnEV 2009

-> in future less consumption needed for main building -> standard ZeroEnergy-House better Plus-Energy-House

The EEWärmeG from 2009 claims using of renewable energy for heating in newbuilt buildings At least: 15% trought solar energy or 30% throught biogas or 50% throught solid / fluid biomass or 50% throught geothermal or environment warmth

2. Central or decentral supply system

-

Basic question

-

Depends on architecture and use

-

We decided to have decentralised campus

central plus

-

-

only on main supply

decentral -

flexible -> different buildings

system

don’t depend on each other -

less maintenance

> easy renovation, selling…


-

can be used as experimental equipment for students

-

different systems possible

-

easier regulation: because smaller system

-

less losses through transportation

negative

-

no flexibility

-

More maintenance

-

when broke, hole

-

More controlling

building effected

-

inbetween solution: grouped supply ->nearby buildings can share systems -> redundancy

-

different systems for student work -> means more space in technical rooms ->gives insight in real situation

-

in transit time: only one system needs to run

-

these point for heating, cooling, climatization

-

water heating-> decentral ->because in university small hot water consumption

3. Different senarios to achieve energy covering -

block heat and power plant

-

to cover warmth in winter

-

produce electric energy

Picture 3: block heating station (360grad-mainz.de)


-

to use waste heat in summer there should be used a cooling machine with can be powered with hot water

-

two different options

-

adsorber and absorber

Picture 4: absorber cooling machine (source: berliner energieagentur)

Picture 5: adsorbercooling machine (source: berliner energieagentur)

-

use photovolataic panels to produce electric energy

Picture 6: net- coupled photovoltaic systems (www.kachelofen-dotzauer.de)


-

another possibility to produce warmth in winter or/and for cooling machines

-

heat pump

-

can be fed by air or ground soil ->bigger potential with soil feeding

Picture 7: heat pump (www.geoprodesign.com)

-

alternative wood pellet heating system

-

disadvantage: big storage space for pellets needed

Picture 8: wood pellet heating system (www.depi.de)


-

additional option: calorific value boiler

Picture 9: calorific value boiler (www.innenwerk.de)

Some possibilities to reduce consumption •

tight/ isolated building envelope

small transient value

in summer external sunblind

right using of natural ventilation

smart grid systems (http://en.wikipedia.org/wiki/Smart_grid)

good regulation of the systems

promote users awareness for right use

presents detectors for light

energy saving equipment

Energy analysis  

energy analysis

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