Slide 1

NET ZERO HOUSE Etienne Hentzen Mark Horgan Mark Lewis Grant MacGregor Darren Tannock

Slide 2

RECAP Geometry finalised Natural / artificial lighting analysis Heating load Electrical demand (incl. car) Wind turbine selection Solar panel selection

Slide 3

GANTT CHART

Slide 4

VENTILATION SYSTEM Ventilation requirement For comfort Perceived indoor air quality : Category C 30% dissatisfied / 2,5 decipol 0% smoker 1 olf/occupant Occupancy in space= 0,022 occupants/(m floor) Pollution load causing by the building = 0,05 olf/(mfloor) Ventilation effectiveness = 1 Ventilation requirement For comfort

Slide 5

VENTILATION SYSTEM Ventilation requirement From the building regulation 2010 Minimum dwelling ventilation rate = 0,3x floor area In our case : 0,3x180= 54 l/s= 194,4 m^3/h We use this value to design our ventilation system Use of a heat and recovery system Supply ventilation rates

Slide 6

VENTILATION SYSTEM Extract ventilation rates Use of a cooker hood suitable for the heat recovery unit

Slide 7

VENTILATION SYSTEM

Slide 8

HR unit: Ubbink HR G400 Data Control: Manually with a 3-way switch Automatically with a remote control

Slide 9

HOME ENERGY MANAGEMENT GEO Ensemble Energy Monitor. Easy management of home electricity consumption as well as controlling home appliances. (image source:http://www.greenenergyoptions.co.uk/wp- content/uploads/2013/01/06-Ensemble-Front-Back.png)

Slide 10

HOME ENERGY MANAGEMENT Smart plugs enable user to control appliances with the touch of a button. Energy consumption displayed in real-time. Consumption information shown in terms of cost, energy units (kWh) and CO2 produced. (image source:http://ecx.images- amazon.com/images/I/310TkxPAb8L._SS270_.jpg) (image source:http://www.greenenergyoptions.co.uk/wp- content/uploads/2012/09/02_Solo_I_PV.png)

Slide 11

WATER USAGE Standard water use was calculated using South Staffs Water factsheet. This value of 160l per day per person is much greater than values specified in the Code for Sustainable Homes. Standard Water Use Litres per use Use for 1 person per day Use for 4 people per Day Use for 4 people per weekLitres Per Week Hot Water Litres Per Week Shower4514281260 Toilet65201408400 Teeth628563360 Hand/Face2416112224 Washing Machine85003255 Dishwasher4214281176 Food Prep151214210 Car Wash35000.517.50 Gardening500000.31500 Miscellaneous250 Total4493.53125 Daily Average Per Person160.5111.6

Slide 12

ECONOMIC WATER USE Using Restricted taps and low flow taps results in a saving of 50.6%. Using Rainwater Harvesting results in a total saving of 65.8% water. This means the water usage is lowered to less than 80l per person per day, scoring maximum points according to the code for sustainable homes. Low Water UseLitres per use Use for 1 person per day Use for 4 people per Day Use for 4 people per weekLitres Per Week Hot Water Litres Per Week Mains Water Use per week Shower (restricted Nozzle)31.51428882 Toilet Full Flush4285622400 Toilet Half Flush23128416800 Teeth (aerated tap)1.82856100.8 Hand/Face (aerated tap)0.641611267.2 Bosch WAQ28461GB40003120 0 Zanussi ZDT12002FA14.31428400.4 Food Prep (aerated tap)4.5121463 Car Wash35000.517.500 Gardening500000.315000 Miscellaneous250 Total2217.91633.41538.4 Daily Average Per Person79.258.354.9

Slide 13

RAINWATER HARVESTING The system specified is the F-Line Diver 7500 from Rewatec Using the system we save 65.8% on mains water. The capture area is specified as the roof space, so 180m2 at 80% collection. MonthRainfall (mm)In (L)Out (L)Left in Tank (L) January60864031185522 February40576031182642 March40576031182642 April2028803118-238 May2028803118-238 June2028803118-238 July2028803118-238 August40576031182642 September30432031181202 October50720031184082 November40576031182642 December30432031181202 Total410590403741621624

Slide 14

RAINWATER HARVESTING

Slide 15

ACTIVE-OX CHLORIDE DIOXIDE DOSING SYSTEM Kills Legionella and other harmful biological agents Allows for reduction of water storage temperature to only 50C, instead of