Building Systems And Components Affecting Energy Construction Essay


This essay has been submitted by a student. This is not an example of the work written by our professional essay writers.

Nearly all of greenhouse gas (GHG) emissions from the building sector can be attributed to energy use in buildings. An integrated approach provides the best opportunity to achieve significant GHG reductions from the buildings sector, because many different building elements interact with one another to influence overall energy consumption. However, certain key building elements can play a significant role in determining a building’s energy use and associated GHG emissions. [i] 

Regulation of solar impact through appropriate fenestration and shading devices. A common and highly effective approach is to specify glazing with low emissivity (low-e) coatings and high R-values to reduce solar heat gain/loss. Shading strategies, such as vertical fins on east and west fenestrations, overhangs on the south side, arcades, trees and deep window insets, are also effective components of passive solar design. [iii] 

Regardless of outside temperature, heat can be gained through windows by direct or indirect solar radiation. The ability to control this heat gain through windows is characterized in terms of the SHGC (Solar heat gain coefficient) of the window. SHGC is the ratio of solar heat gain that passes through fenestration to the total incident solar radiation that falls on the fenestration. Solar heat gains include directly transmitted solar heat and absorbed solar heat, which is re- radiated, conducted, on converted into the interior space. (Fig. 5.2)

The building and construction sector is one of the key sectors for sustainable development. The construction, use and demolition of buildings generate substantial social and economic benefits to society, but also cause significant environmental impacts from the use of energy, water and other natural resources. To achieve a sustainable community, these impacts have to be minimized. The percentage of the total energy used in non-industrial buildings varies from one country to another and is usually between 30% and 50%. The energy used by the built environment varies from 50% to 70%. [vi] Figure 1 show the energy used in the building sector in OECD countries. [vii] OECD-11

In India commercial buildings are a major source of high electricity consumption because of lack of awareness and careless usage of electricity by existing buildings not designed for air-conditioning purposes. The other major reason is illiteracy and poor buying power leading to almost zero penetration of energy efficient devices. Both commercial and residential establishments with installed air-conditioning systems in almost all the six climatic zones of the country lacks the usage of energy efficient devices and basic practices like building insulation. All this leads to a considerable overconsumption of electricity in a country, which is already suffering from a power deficit.

The topics discussed within this chapter from different recourses conclude that the amount of energy consumed in commercial buildings mainly depends on the fabric design of the building and its systems and how they are operated. The heating cooling & lighting systems consume more than half of the total energy consumed by the building; however controls such as programmable thermostats and building energy management systems can significantly reduce the energy use of these systems. It is important to address these critical areas including Envelope, HVAC & lighting systems to reduce the energy requirements of the building to achieve the required comfort conditions.

Writing Services

Essay Writing

Find out how the very best essay writing service can help you accomplish more and achieve higher marks today.

Assignment Writing Service

From complicated assignments to tricky tasks, our experts can tackle virtually any question thrown at them.

Dissertation Writing Service

A dissertation (also known as a thesis or research project) is probably the most important piece of work for any student! From full dissertations to individual chapters, we’re on hand to support you.

Coursework Writing Service

Our expert qualified writers can help you get your coursework right first time, every time.

Dissertation Proposal Service

The first step to completing a dissertation is to create a proposal that talks about what you wish to do. Our experts can design suitable methodologies - perfect to help you get started with a dissertation.

Report Writing

Reports for any audience. Perfectly structured, professionally written, and tailored to suit your exact requirements.

Essay Skeleton Answer Service

If you’re just looking for some help to get started on an essay, our outline service provides you with a perfect essay plan.

Marking & Proofreading Service

Not sure if your work is hitting the mark? Struggling to get feedback from your lecturer? Our premium marking service was created just for you - get the feedback you deserve now.

Exam Revision

Exams can be one of the most stressful experiences you’ll ever have! Revision is key, and we’re here to help. With custom created revision notes and exam answers, you’ll never feel underprepared again.