our rules of working are : different knowledgetogether on the same boat have fun

TEAM : “THE ONE DIRECTION‘‘

RULES OF WORKING

Our rules of working are :

Different knowledge

Together on the same boat

Have fun

CONTENT

1. Introduction of Patras2. Examples of architecture3. Introduction about the villa4. Problems5. Solutions6. Simulations7. Houses in Patras8. Conclusions

INTRODUCTION OF PATRAS

-The third largest urban area of Greece, in northern Peloponnese-Is built in the foothills of Mount Panachaikon- Urban geography : division into upper and lower sections

INTRODUCTION OF PATRAS

CLIMATEMediterranean; Mild, wet winters and hot, dry summersSpring and autumn : pleasant transitional seasons

EXAMPLES OF ARCHITECTURE First Building

Current Condition : GoodSuggestions for renovation : •Replacement of the openings (but keeping the same style)•Probably replace the roof •Put insulation for the thermal bridges•Repair the barriers•Put some shelters above the windows •Repaint the facade

EXAMPLES OF ARCHITECTURE Second building

Current condition : Very badSuggestions for renovation : •Remove the damaged materiels of the walls•Put a new surface• Internal insulation•Replace all the openings (keeping the same style)•Build a new roof•Repair the barriers•Probably put solar pannels on the top of the building for energy saving

EXAMPLES OF ARCHITECTURE

EXAMPLES OF ARCHITECTURE

Third building :

Current condition :Very badSuggestions for the renovation :•Repair mostly the side walls of the building•Repair the openings by putting double glazing on the same frame•Reconstruction of the roof•Possible internal insulation

PROJECT OF THE VILLA

BASIC IDEAS

Keep it simple Keep it cheap, efficient Renewable as much as possible Use original components

INTRODUCTION ABOUT THE VILLA

Plan of DesignBuilder

PROBLEMS

insulation Uninsulated walls Uninsulated roof Wooden doors One glassing windows Uninsulated basement

PROBLEMS

heating / cooling system Bad Insulation of the pipes Circulation pump in a bad shape Heat boiler is damaged and too expensive Lack of space for Fan Coils

PROBLEMS

heating / cooling system

PROBLEMS

domestic water system 100l Electric boiler

PROBLEMS

ventilation Uncontrolled supply and exhaust air amount

SOLUTIONS

insulation1. Roof insulation Options:

Insulation to the whole ground; Insulation between the beams on the roof; Insulation around the ground and the room;

Which materials are possible? Glass wool

Strawbale

Wood fibre

SOLUTIONS

Reasons for the strawbale Easy to find Low Cost of straw: 3 €/m2

High performance: λ= 0.045 W/m*K High humidity resistance Very good fire resistance

SOLUTIONS

Windows insulation options

SOLUTIONS

Reasons for the secondary glazing Want to use original components -> no

change in exterior appearance High thermal insulation Very good U-value= 1,7 [W/m2*K] Cost per window: 150 €

SOLUTIONS

Doors options Replace the door with a new one with the

same style Improve the original door with self-stick

foam to the frame of the doors Decision : second option because it’s

cheaper and easier to install

SOLUTIONS

Basement Options Mineral wool Wood fiber

Reasons for the mineral wool: It’s cheap material Good insulation properties Thermal conductivity only 0,035-0.05 W/m2*K Resistance against mold Good noise insulation

SOLUTIONS

Walls Thin material to preserve the original room

size Should be breathable and compatible with

the original wall material Avoid any cold bridging

SOLUTIONS

Advantages of wood viber The thermal capacity is more higher than of

mineral wool Protect much better against summer heat It supports uniform interior climate It’s easy to install on the wall It’s ecological material It’s cheap

SOLUTIONS

calculation for insulation’s cost

SOLUTIONS

heating/cooling system

insulation for the pipes Material: mineral wool Thickness: 3cm Cost: 15€/m2

SOLUTIONS

circulation pump Type: Wilo-Stratos 30/1-12 Power: 200W Energy and money saved:

Qbefore=1620kWh/a

Qafter=432kWh/a

Saved: 178 €/a

SOLUTIONS

heating with a heat pump Energy and money saved:Diesel –Boiler :

2230 Liter/a DieselCost = 3100€/a

Heat pump:PHP=6300 kWh/a

Cost=900€/a

Saved: 2200€/a

SOLUTIONS

New Fan Coils Wall Fan Coils in the rooms (except hall)

SOLUTIONS

heating / cooling system

Size: 1 m² Coll. Efficiency:

60%Heat: 1020

kWh/a

SOLUTIONS

ventilation Air vents in a top of the windows

ELECTRICAL SYSTEMS OF THE VILLA

System is very old and has been built in small steps No clear plan for protection No documentation

System is running when it is not needed Lighting, computers, heating and cooling

systems

CURRENT ELECTRICAL POWER USAGE About 12 computers approximately 500

W each Six lights for the hallways, one light per

office and lights in other rooms 12 – 40 W each

Heat pump, appliances and other electrical systems

All evaluated individually and total energy usage calculated annually ~ 36 000 kWh

SOLUTIONS FOR FOUND ISSUES

The main goal is to cut down unneeded power usage Lower energy use

The total used electrical energy is , where P is the power of the system and t is the time it’s used P’ < P t’ < t

Villa needs better electrical appliances and smart control for the systems of the house

THE LIGHTING

We chose LED lamps for the villa : Easy to install Efficiency Lifespan Low consumption

THE LIGHTING

Approximately 12m² Original fixtures Fit LEDS 700 lumens per

lamp 7 watt per lamp

Approximately 16 m² One flat LED panel 1500-2400 lumens Possibly work lights Maximum : 20W per

office

Hallway Offices

THE LIGHTING

One big office Approximately 20m² Two hanging

decorative LED fixtures : 2000 lumens (close

to center) 1000 lumens

(towards the corner) Possibly work lights

(maximum 20W)

Staircases Indirect LED lighting : on

the corners of the ceilingBathroom : Discrete bathroom LEDS 500 lumens 300 lumens (3)

Attic Two lamps 500 lumens (2)

CONTROL

The idea for the control of the house is to only run systems when they are actually needed Heat/cool and light the offices only when

they are in use Install a main computer and necessary

sensors Plug in office hours and monitor office

use with possibly RFIDs Doable very cheaply!!

CONCLUSION FOR THE ELECTRICAL SYSTEM

System is NOT SAFE! Protection might not work could cause a fire

Peak power can be cut down by installing better lighting Good for the working atmosphere Pretty cheap

Time of use can be cut down by better control of the relevant systems

SIMULATIONS

without Intervention

[kWh/a]

with Intervention[kWh/a]

Heating 14000 11000

Cooling 31000 29000

Lighting 6000 3000

Equipment 23000 23000

Water System 900 900

Total End Uses 74900 66900

Energy save 8000

economies 1200 €/a

INNOVATIONS

Pellet boiler for heating Cooling machine with absorbtion process PV park for electricity

Or possibly install pv roof tiles to the south side Vacuum insulated panels for wall insulation

THANK YOU FOR YOUR ATTENTION!