Project Releated to Energy

We are Five members of Second Semester Students Energy Engineering dept from Hamdard university.We completed this model in May 2011.

This house is more comfortable and good than others simple house. In this model we use solar panel, solar geyser, wind catcher, roof garden and all things which are related with the sun as direct source of energy.

We were appeared in Pro-com energetic 2011 which held in our university and stand at First position between NED, UIT, Sir Syed Universities.

Energy Efficient House

Energy efficient house is such type of a house which consumes lesser energy than other ordinary houses and it uses energy resources which are readily available and are cheap. In energy efficient houses instead of using expensive energy which is coming from burning of fuels we use cheap sources of energy such as solar energy and wind energy by simply installing solar panels and wind turbines. The house is well insulated and colored white in order to keep the heat out. The energy efficient house is environmental friendly too.

Model Features

 South and east was of the house are thicker than the rest of the house.  Eastern side has windows to have an eastern sun while southern side has no windows. Northern side has big and wide windows to have more indirect light. Though southern side has windows opening to the pool, but they are more shaded and act like verandahs.

The roof of the house is mainly divided into tow parts, flat slab and sloping slab. Flat is for the roof garden (which also work as a natural insulation), and for the wind turbines, while sloping roof is for the solar panels and for solar geysers ,which is at the south side which also helps the solar panels to get the better angle.

Courtyard plays an important role of bringing the light and air in and also ventilate. Apart from that this model house also has wind catchers and those wind catchers have 4 openings, from 2 sides it catches air and from the other 2 side creates a tunnel effect and ventilate the hot air from the room. These wind catchers have nano wind turbines in the walls. Either the air comes or ventilates from the catchers, its pressure will move the turbines and create energy.

Inner side of the house has clear store windows which are opening to the north side for an indirect light and also work as ventilating the hot air.

Also organic garden is grown at the southern side of the house to have more sun and close to kitchen where people can grow their own vegetables using food wastage as natural fertilizers.

 Materials Used and Economics:

·      12 Solar Panels of 100 watts = Rs 360000 (Rs 300 per watt)

·      5 small Wind turbines of 400 watts = Rs 250000

·      Insulation tiles, white wash of roof, special glass reflecting windows, roof garden, white paint = Rs 140000

       Total Costing = Rs 700000

This cost would be recovered in 10 years time. After 10 years it will produce energy free of cost. 

Calculations:

Power Calculations:

·        Total energy required by a 400 yard house of single family is = 20 KWh

·        Amount of sun light and wind available per day is = 8 hours

·        Power needed is = 20KWh/8h =2.5 KW

·        Keeping in view the transmission and other losses we need a system of power approximately 3.2 KW.

·        12 solar panels of 100 watts           = 1.2 KW

·        5 small wind turbines of 400 watts = 2    KW

·        Total Power = 3.2 KW

Cost per Unit (KW h) of Energy efficient house:

Cost of solar panels and wind turbines = Rs 610000

KW h used in a Energy Efficient house per day = 20 KWH  

Average age of solar panels and wind turbines = 20 years

Cost per unit = Total cost of the system / Kw h produced in 20 years

                     = 610000 / 20*365*20 = 610000 / 146000

                     = Rs 4.2 per unit 

Energy Consumption in a Normal KESC house of 400 yards and its cost

Domestic use Electrical Items	Rated Wattage	Quantity	Total K.Wattage KW	No. of hours used daily H	Units Used KW h per day	Cost Per KW.h	Cost Per Year Rs
Fans	80 W	8	0.64	14	8.96	10	32704
Air Conditioners	1000 W	1	1	2	2	10	7300
Dessert Coolers
Lights:
Energy Savers	18 W	10	0.18	10	1.8	10	6570
Tube Lights	40 W	3	0.12	6	0.72	10	2628
Filament bulbs
Fancy Lights
Search Lights
others
TV(s)	120 W	1	0.12	6	0.72	10	2628
Computer	140 W	1	0.14	3	0.42	10	1533
Fridge	308 W	1	0.308	16	4.928	10	18000
Deep Freezer
Washing Machine	400 W	1	0.4	1	0.4	10	1460
Electric water heater
Water Motor	750 W	1	0.75	3	2.25	10	8212
Other Electrical Equipment Micro wave oven, Iron	1OOO W	2	2	1	2	10	7300
TOTAL					25 units per day		RS 90000 Per year

Energy Consumption in a ENERGY EFFICIENT HOUSE of 400 yards and its Cost

Domestic use Electrical Items	Rated Wattage	Quantity	Total K.Wattage KW	No. of hours used daily H	Units Used KW h per day	Cost Per KW.h	Cost Per Year Rs
Fans	80 W	8	0.64	10	6.4	4.5	10512
Air Conditioners
Dessert Coolers
Lights:
Energy Savers	18 W	10	0.18	8	1.44	4.5	2366
Tube Lights	40 W	3	0.12	4	0.48	4.5	789
Filament bulbs
Fancy Lights
Search Lights
others
TV(s)	120 W	1	0.12	6	0.72	4.5	1183
Computer	140 W	1	0.14	3	0.42	4.5	690
Fridge	308 W	1	0.308	14	4.312	4.5	7083
Deep Freezer
Washing Machine	400 W	1	0.4	1	0.4	4.5	657
Electric water heater
Water Motor	750 W	1	0.75	3	2.25	4.5	3696
Other Electrical Equipment Micro wave oven, Iron	1OOO W	2	2	1	2	4.5	3285
TOTAL					20 Units per day		RS 31000 Per year

Comparison Between a normal house and a Energy Efficient House

	Normal House	Energy Efficient House
Cost Per KWH (Unit)	RS 10	RS 4.5
Annual Cost of energy	RS 90000	RS 31000
Units Consumed Per day	25 KWH	20 KWH

Savings And Benifits:

·       Up to 55% cost reduction of electricity.

·       Annual Saving up to Rs 60000.

·       Monthly saving up to Rs 5000

·       Daily saving up to Rs 165

·       Free of cost electricity after 8 years.

Solution of Energy Crisis in Pakistan:

Energy Efficient house is the need of the hour in Pakistan Especially in the current scenario where the short fall of electricity in Pakistan is about 5000 megawatts.

Energy crisis can be resolved if we convert our houses to energy efficient house.

Environment Friendly:

The house is absolutely environmental friendly because no smoke or other harmful gases are produces in the power generation.