The Effect Of Daylight And Control On Artificial Light And Air Conditioning Systems

Energy use by buildings would be reduced by a Factor 10 or more below that of conventional buildings. The purpose of factor 10 is a long-term

According to the U.S. Department of Energy and the U.S. Energy Information Administration, 15% of electricity generated in the U.S. is consumed by electrical lighting in buildings. This could be reduced mightily with the addition of more natural light in any buildings, one of the first example will be in this humongous school building. “In a 1991 study, the Alberta Department of Education found that students read faster in classrooms lit using natural light,” said an article by Bristolite. And of course, the cost goes down to zero. Natural light is free of charge while still providing a light source. In Wyoming, that light source will be limited somewhat during the winter months. Artificial light is also bad for the circadian rhythm. In a study from the American Medical Association, that “There is no question that lighting suppresses the circadian rhythm. It was suggested that women who work overnight under artificial light can lead to higher risk of breast cancer(LED Inside). Anita Nalk of netdoctor says that “Too much artificial light can also impact our ability to sleep well, think clearly and the regulation of blood pressure and glucose

LEED, also known as Leadership in Energy and Environmental Design, “is a rating system devised by the United States Green Building Council (USGBC) to evaluate the environmental performance of a building and encourage market transformation towards sustainable design”. The building has a LEED-EB Certification. People installed high-efficiency lighting systems. The purpose was to improve its controls to reduce the building’s energy consumption. Overall the building uses less water and energy which helps them save money.

CH₂ heating and cooling system is designed to have a temperature of 21-23°C. It works with a combination of ceiling panels and chilled beams which can be found above the windows. These beams create cool air at around 18°C. Heat is absorbed in the concrete ceilings and through the natural ventilation of the building will be removed. As approximately 70% of the ceiling is curved in shape, there is expected to be a 14% decrease in cooling energy usage by the natural ventilation process. Figure 1 show’s how the cooling of the offices is expected to work.

After this evaluation, skylights and renewable energy, consisting of photovoltaic (PV), solar hot water, solar ventilation preheating, and ground source heat pumps were designed to enhance and push towards net zero. Thirty-seven percent of total savings are estimated to be from PV and 13% from ground source heat pumps.

Moreover, the paper addresses what are the most common considerations in projects regarding daylight implementation and how certain factors differ from one company to company or professionals to professionals within the building industry.

In general there were little complaints of daylighting. Occupants were generally comfortable in their respective spaces. Occupants were satisfied with the amount of natural lighting. Offices are mainly located on the eastern side of Weill. Glare from the sun rising is blocked by the Biotechnology building. Internal shading is utilized by occupants whenever glare became a problem. However, there are no obstructions on the western side of Weill, where the sun sets. Lab occupants complained of glare. Glare seemed to be more of an issue on the western side than the eastern side of Weill. However, like office occupants, lab occupants utilized their internal shades to manage this daylighting issue.

The challenge in providing daylight by effective use of windows is to allow adequate amounts of daylight as deep into the space as possible, with a distribution within the space that is visually comfortable and does not create glare. A designer can control window area, location type, glazing properties, shading systems, ceiling parameters, and interior design features to achieve these goals.To achieve these goals We have chosen case 2 (reducing the size of windows ) , we got the lux 500 which is the most suitable value for a classroom .

In this letter, I present a proposal to implement the Energy Efficient Lighting Program for the Domain College Park apartment complexes. The problem is that the building uses incandescent light bulbs that are not energy efficient. As a result, your employees are constantly purchasing and replacing these bulbs, while your tenants are interested as to why their energy bills are expensive.

Energy simulation software tools are an important support used for building designers to design energy efficient buildings. Energy simulation basically means using a calculation to mathematically model the interplay of thermal processes within a building. There are a wide range of mathematical models used for this purpose, all of which vary significantly in both ease of implementation and application. These models have been translated into computer software’s for excellence and efficiency in building design. The paper attempts to review the available Energy simulation softwares and select an appropriate one for simulating the various building design options for an ongoing research, “Design of Earth Sheltered Buildings”.

Changing the way energy in buildings is monitored, controlled and consumed can bring down CO2 emissions and reduce costs (Faucheux & Nicolaï, 2011) .

Humans today are using much more electricity than we need to in our houses and this is impacting our world more then we realise. Although electricity is a huge advantage to humans it has the complete opposite effects on our environment. By using more electricity, we are using more of the earth’s resources and if we keep going down this road then we are going to run out. The solution for this mass overuse of energy is to build houses which are more energy efficient. Features like LED lightbulbs, insulating and even positioning your house in the correct position for natural airflow instead of using air conditioning are all ways we can help improve this problem.

Every minute of every day, data is being collected regarding energy consumption at the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), head-quarters in Atlanta. This data can be accessed by researchers from around the world, allowing them to monitor the performance of the building’s systems and extract data for further study.

In a modern building daylight can provide most of our lighting needs for the vast majority of the working day. It is therefore unnecessary to spend too much time in designing artificial lighting systems.

The energy analysis for the Architecture Annex was run with the settings of a 24/7 school or university building. The location was set to Urbana, IL, and the HVAC system was set to the default type. The analysis showed that most energy would be used on fuel,