Daylighting – the art and science of bringing natural light into buildings – has always been an essential aspect of sustainable building design. Beyond the apparent energy savings from reduced artificial lighting, good daylighting improves occupant comfort, health, and productivity, which makes it a valuable tool for achieving green building Read more…
Building energy simulations are critical for designing energy-efficient and high-performance buildings. With a reliable tool like Integrated Environmental Solutions’ Virtual Environment (IES VE), building professionals can gain a detailed understanding of a building’s energy performance and identify opportunities for improvement. This article offers a step-by-step guide to conducting an energy Read more…
Light plays a significant role in our well-being and overall health. Proper lighting can enhance our mood, boost productivity, and improve sleep quality. In the built environment, incorporating effective lighting strategies is essential for occupant comfort and well-being. This blog article will discuss the importance of circadian lighting design, glare Read more…
Introduction: Lighting plays a crucial role in building design, not only in terms of aesthetics but also in terms of energy efficiency and sustainability. Efficient lighting design strategies can significantly reduce energy consumption, lower operating costs, and create a comfortable and productive environment for building occupants. In this article, we Read more…
Introduction: Luminous efficacy is an important parameter used to measure the efficiency of lighting systems. It refers to the amount of visible light produced by a light source per unit of electrical power consumed. A higher luminous efficacy indicates a more energy-efficient lighting system, as it produces more light with Read more…
Daylight analysis is an important aspect of sustainable building design. It helps in maximizing the use of natural light and reducing the dependency on artificial lighting. In addition, it is also important for meeting the credit compliance of Leadership in Energy and Environmental Design (LEED) V4 for new commercial buildings. Read more…
A 7,200 m2four story office building in Delhi is trying to achieve ECBC levelcompliance. Building is oriented along east west axis. It has a rectangular layout (60 m x 30 m). Totalbuilt up area is distributed evenly across all floors above grade. VLT of glazing in all orientations is 0.39.Windows Read more…
Daylight simulation can also be conducted manually for projects that adopt the prescriptive compliance approach. The following example demonstrates how to calculate the daylight extent factor (DEF) for a building located in Delhi and how to use this factor to determine the area that complies with the Uniform Daylight Illuminance Read more…
Daylight is merely the visible part of the radiant energy that enters through windows. Furthermore, the bulk of the daylight energy that enters a space is converted into thermal energy after just a few reflections. Many office buildings in moderate climates now have air conditioning largely due to the high Read more…
What is VLT of glass? VLT stands for Visible light transmission. It is the amount of visible light that can pass through an optical or sun lens. It can also be called visible light transmittance or VLT%. This is measured as a percentage which indicates the darkness of a lens Read more…