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Passive Solar House Design Features

Solar powered air conditioning

Music playing Narrator Over 50 percent of the greenhouse gas emissions you produce in your home are generated by heating, air conditioning and hot water. In other words keeping your home warm in winter, cool in summer with nice hot water on tap is emitting 2.5 to 5 tonnes of greenhouse gas emissions each year. It also contributes a hefty amount to your electricity bill, between 50 to 60 percent. CSIRO has invented a new solar air conditioning system for Australian homes. This technology solution will reduce Australia's emissions, reduce your energy.

Bills and reduce our demand for electricity and gas. If every home in Australia installed our solar cooling technology it would be the equivalent of saving 15 mega tonnes of CO2 or taking 3.5 million cars off the road. CSIRO's solar air conditioning is an innovative three in one technology that provides hot water, cooling and heating. It uses only a fraction of the electricity of current systems and halves greenhouse gas emissions. The process begins with a typical solar hot water system. Water is heated by solar panels and stored in the hot water tank.

This solar hot water can then be used throughout the home, reducing the need for gas or electricity. A portion of the hot water is diverted into CSIRO's new solar air conditioning unit, which is divided into two compartments. The hot water enters a heat exchanger in the first compartment of the unit. Similar to a car radiator the heat exchanger uses the hot water to heat outside air that has been drawn into the first compartment through the vent. At the same time outside air is also being drawn into the second compartment into a desiccant wheel.

The desiccant wheel is the most critical part of the system. It is used to dry out the air before it goes into the house. Slowly turning the desiccant material in the wheel continuously absorbs moisture in the second compartment and then the absorbent material dries out in the first compartment. The desiccant material is dried out using the hot dry air generated by the heat exchanger. This air is then exhausted outside the home. The dry air from the desiccant wheel flows through an indirect evaporative cooler which creates a stream of cool dry air.

Stanford Start.Home Building Materials

We took the idea of sustainability beyond just energy and water into our materials. And we used reclaimed redwood and Douglas Fir that came off of houses from 40 to 50 years ago all over the South Bay. The wood was remilled up at Jasper Ridge where the house is going to finally rest, and brought down to us at the university and installed throughout the home. So it gives us a really beautiful finish as well as the advantage of not having used any brand new trees. All of our structure and walls were built.

Out of a structural insulated panel system which comes as prefabricated wall sections with four to eight inches of foam sheathed in two pieces of plywood. That made it really easy for us to build the house quickly and get a very airtight house and a high insulation value across the whole structure. Continuing that theme, we used windows that give you the same energy efficiency as standard double pane windows in the glass, but also use a frame that doesn't have vinyl. So you don't have the toxic byproducts of typical windows that are on the market.

Another cool product that we use is a phase change material that we installed in the ceiling below the drywall. And what this does is it melts as the house warms up during the day to absorb a lot of heat right around 72 degrees Fahrenheit, where you're most comfortable, without actually changing the interior temperature of the room. So it stores all that heat during the day and then when it starts to cool down at night, rereleases it by freezing back into a solid gel, therefore allowing the house to stay warm later into the.

Minnesota Miles visits the Solar House

Hi! I'm Minnesota Miles, and welcome to the University of Minnesota's Solar House. The Solar House is equipped with solar panels across the roof. They provide energy to all aspects of the house like the oven, electricity and water heating. The other awesome thing about the house is that it's set up like any other suburban home. You've got the deck, the grass and all you're missing is the white picket fence! One important aspect of the design of the Solar House is its icon shape. Icon, meaning iconic as in if you were to ask a child what a house looked like,.

He or she would draw something that looks similar to this.unless the child were an Eskimo. Students from colleges across the University contributed to the project. Architecture students helped design the overall look and feel of the house. Institute of Technology students brought their expertise in engineering systems to make it a fully functional house. College of Continuing Education students in Construction Management are working handson with the building and construction. Now the students will take the Solar House to Washington, D.C. to compete in the Solar Decathlon against twenty other colleges.

Day in the Life Solar Design Engineer

My name is Stefania, and I am a solar design engineer. and I work in a solar company called Luminalt here in San Francisco. And we install solar, thermal, and photovoltaic systems both for residential and commercial applications. Luminalt is a womanowned company. It is focused on building a sustainable community. Energy is a major problem nowadays. The main sources we are exploiting are damaging for our health. I wanted to focus on renewable energy because they seemed to be a good solution. I went to college in Italy. I took classes in.

And mechanical engineering and electrical engineering, both in the field of energy. So my role at Luminalt is providing customers with a designed solar system. So basically after your site visit, in which we have the possibility to talk with the customer and understand his needs, we analyzed their location, then there is a permitting phase in which we actually design the system to be built. So, usually, we use Google Sketch, for smaller residential systems, but when we go larger scale like commercial systems, I like to use AutoCAD, so I can be really precise.

And see how many panels I can fit, and what they will look like. Because I really believe that we live in a city and we won to see beauty around us like it really affect our I will present a witty try to a find the right balance between functionality and index that text you can see the country's which is running down and is going straight at to the inverter the this is more company it's a growing company but at this stage you have the possibility to work weaknesses person who will.

Continue so actually they're different schemes in which me you're developing in engineering part you have to be detail oriented and be very careful how you say it is a wire now you select anger yet hatch analytical skills but does he have to add set up newman's night means you have to deal with the client and really understudy meets understand what he wants i jus engineering because I thing keep key to the possible need to really batch the practical things the technique I ask things and we have a feeling that you can find solutions to problems.

Parsons NS Stevens Solar Decathlon 2011 Architecture Audiovisual Presentation

Welcome to Empowerhouse Architecture Empowerhouse unites a group of students from Parsons, Milano and Stevens to design a new model of affordable, healthy, site netzero housing for Habitat for Humanity. The Empowerhouse team worked in partnership with the D.C. Department of Housing and Community Development and Habitat for Humanity of Washington D.C., a volunteerled organization that works to build affordable energy and resourceefficient homes for people in need. The relationship with Habitat influenced every element of the design from the ease of construction to the creation of community through building form.

Better building practices provide not only for long term sustainability but also for immediate savings for the homeowner. Following the competition, Empowerhouse will be a safe, energyefficient home for a family in Deanwood, a historic neighborhood of DC. The family chosen to live in the house after the competition will become community leaders in healthy living and environmental stewardship. Designed according to stringent passive house standards Empowerhouse is built to conserve energy and reduce the site primary energy demand for heating and cooling, domestic hot water and household electrical by 80.

On the roof a carefully scaled photovoltaic array complimented by a green roof module system brings the house to site netzero standard with renewable solar energy. As an urban infill on a north south axis Empowerhouse is a compact mass with an optimized building envelope The west wall wraps the house to become floor, roof and porch as it extends beyond the front and rear of the house. In order to enhance the experience of the porch, the home informs three faces the front porch opens to the street, the private back porch looks toward the garden and a light.

Loft faces the sky The large front porch integrates Empowerhouse in the neighborhood and serves as a place where the family can interact with their neighbors and community. The unique sky oriented loft brings natural light into the center of the home and is a multifunctional space with builtin amenities. The bookcase and desk provide a space for a parent or child to work during the day. At night, a bed folds down as a place for the parent to sleep. Through the entry area, the house opens up into a generous kitchen and living space that.

Is well lit with large southfacing windows. This is a central space for social and family interaction. From here, parents can overlook the family's vegetable garden and watch their children play on the back porch. Passive house windows are placed in consideration of views and performance, optimized by architectural features such as the overhang over the south porch for shading in the summer and the window trim detail, which helps distribute an even ambient light. Supplementary light, provided by low cost high efficiency light sources, is optimized by occupancy and daylight sensors.

New Zealands Solar Decathlon 2011 Architecture Audiovisual Presentation

Our entry to this year's Solar Decathlon is really inspired by the traditional Kiwi bach it's basically a holiday home that we have here in New Zealand. The way we've articulated that was really focussing on the outdoors and the environment So we had this really strong northsouth access that was all about the environment, the landscape the climate in the EastWest access is the living crossing across there, and what this allowed us to do was to create an energised space where the two intersect and that would be our dining space and that would be combined with much of the enviornment as we could so it was kind of responsive to the outdoors.

And would really create a nice heart to our home I think a key to our design is using a lot of natural materils in terms of our exterior woods. for the canopy we've used Western Red Cedar, obviously a very beautiful timber, for our canopy support we have Gluam beams and posts. One of our key strategies was to reduce energy consumption and make the most of passive design strategoies with the large canopy above which houses all our solar panels it also provides shading to the large South glazing.

All our glazing is triplpe glazed to, of course, reduce heat loss. All our window frames are Cedar as well and it being timber it meant that we weren't having any thermal bridging that you can sometimes get with Aluminium frames. We've also got roller blings conceled in that cavity to cover those windows, mostly for privacy but also proividing additional shading. and then the large skylight has three indpendently adjustable shading systems as well, automated into our building management system We've actually used sheep's wool insulation for insulating our entire house. So we've got at least 25 cm of recycled wool insultation, walls, roof and floor.

We've used about 50mm of concrete in the floor of the house, this is really just to provide a bit of thermal mass It's actually a special, new concrete, it's fibre reinforced so it doesn't crack like regular concrete We regulated our usage of all electricity in the house to four sixty watt bulbs, so about 240 watts. So we managed to achieve that by using LED lighting, so we've got about 32 bulbs in the house, all of which only total 180 watts So, we've managed to achieve quite a nice atmosphere in the house with minimum energy use.

Team Floridas Solar Decathlon 2011 Tutorial Walkthrough

Flex House is a grid connected balanced energy prototype designed for Florida's hot, humid climate. The main body will be prefabricated and shipped in one piece. The modular design allows for easy transport and deployment on any site. Elongated on its east west axis to facilitate shading, the design incorporates an umbrella structure covered with local, insect and weather resistant cypress louvers that cut down on direct heat gain in Florida's hot southern climate while allowing indirect light to penetrate and provide daylighting. Photovoltaic panels provide all of Flex House's energy needs.

Corrugated metal siding follows vernacular tradition and lends durability to the design. The modern appeal of the open floor plan and multifunction design elements combined with energy efficiency means that Flex House is ideal for a young, active, environmentally conscious couple with a moderate household income. The design incorporates a number of energy efficient features in a compact space. Energy Star appliances throughout conserve energy, Lowflow fixtures save on water, a small refrigerator cuts down on food waste, and hot water is provided by a highly efficient solar thermal system. Intelligent design and furnishings that perform double duty allows for multiple uses of space.

And maximizes the limited square footage. The kitchen island is actually a table that can function as a work surface or adjust to be used for more formal dining. Telescoping glass doors along the north face allow for natural light, while reflective surfaces reflect light deeper into the house and enhance daylighting. LED and compact fluorescents minimize energy consumption when natural lighting isn't available. Multiple settings allow for mood adjustments ensuring occupant comfort. The telescoping doors also open to a large exterior deck, allowing for cross ventilation during Florida's cooler months, and effectively merging the interior and exterior spaces.

A high efficiency HVAC system picks up where passive cooling leaves off. The liquid desiccant system dehumidifies incoming air to reduce the cooling load while also functioning as a design amenity, adding to the modern feel of the home. A userfriendly touch screen controls the building management system which monitors and controls all of Flex Houses mechanical and electrical systems. Doors separate the bedroom, bath and office into a private suite. The office area includes a convenient work space and loft area which can accommodate an overnight guest, or serve as storage.

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