Building Integrated Photovoltaics(BIPV)
As the world’s demand and focus on renewable and non-polluting energy, together with energy efficiency, are ever-increasing, zero energy and zero-emission buildings are rapidly drawing attention. A zero-energy or zero-emission building harvests energy from its surroundings and from the Sun. Building integrated photovoltaic (BIPV) systems, where solar cells are integrated within the climate envelopes of buildings, utilize solar radiation to produce electricity. BIPVs offer an aesthetic, economical and technical solution to integrate solar cells harvesting solar radiation to produce electricity within the climate envelopes of buildings.
The BIPV systems replace parts of the conventional building materials and components in the climate envelope of buildings, such as the roofs and facades. BIPV systems are generally considered as a functional part of the building structure, or they are architecturally integrated into the building’s design. Hence, the BIPV system serves as a building envelope material and power generator simultaneously.
Building integration of photovoltaic (PV) cells may be carried out on sloped roofs, flat roofs, facades, and solar shading systems. PV cells may be mounted above or onto the existing or traditional roofing or wall systems. Thus, BIPV may provide savings in materials and labor, in addition to reducing the electricity costs.
Aspects to be considered and evaluated related to the integration of the PV cells into the outer building envelope skin:
➡️ To ensure an air gap underneath the solar cells in order to provide an airflow reducing the temperature of the solar cells, as an elevated temperature decreases the efficiency of solar cells.
➡️ The inclination of BIPV, both with respect to existing and new buildings, as the solar cells necessarily need to follow the roof inclination (or the wall for that matter) to be integrated solutions (exceptions may e.g., be different architectural integrations).
➡️ Geographical position and orientation towards the sun and area coverage.
➡️ Heat and moisture transport in the building envelope.
BIPV products:-
➡️BIPV foil products:
● Lightweight and flexible
● Made from thin-film cells
● Low efficiency
➡️BIPV tile products:
●A good option for retrofitting of roofs
●Aesthetically pleasing
● The module has an integrated panel of poly or monocrystalline cells
➡️BIPV module products:
●Similar to conventional PV modules
●They are made with weather skin solutions
➡️Solar cell glazing products:
● Variety of options for windows or tiled facades and roofs
●The modules transmit daylight.
● Different colors and transparencies make them aesthetically pleasing.
● Serve as water and sun protection
Advantages and Disadvantages
➡️Advantages
■Cost-effective
■ Reduced energy bills
■Generate income
■Environment-friendly
■Low operating and maintenance costs
■ Silent, producing no noise at all
■Solar energy is productively used
➡️Disadvantages
■High making cost
■Influenced by weather
■Low efficiency compared to efficiency levels of other renewable energy sources
Submitted by - Chaitanya Kumar





Comments

Post a Comment

Popular posts from this blog

Tackling the storm

Image
CYCLONE RESISTANT BUILDING CONSTRUCTION Cyclones have been an inescapable situation in India, especially in the eastern states of Odisha, West Bengal, and Andhra Pradesh. This calls for the construction of cyclone-resistant buildings in cyclone-prone areas to avoid loss of life and property. Low-lying coast areas, river floodplains, and sea-shore areas are highly vulnerable to cyclones. Certain settlement pattern even causes "funnel effect" which results in greater damage. While it's a common belief that heavier buildings are safer, in reality, a well built and engineered house provides better safety. Minimum standards for the design, construction, and performance of buildings to withstand extreme climate-related natural hazard events depending upon their locations should be set. We know cyclones are beyond human control but measures can be taken to reduce the loss of lives like evacuating people to safe areas, quick recovery of important fa...
Read more

Central Vista Project: Transforming the Political Face of India, the Civil Way

Image
    Source: Wikipedia     Central Vista Redevelopment Project  refers to the ongoing  redevelopment  to revamp the Central Vista, India's central administrative area located near  Raisina  Hill, New Delhi . The area houses India's government and parliamentary offices and has  been  described as the "power corridor" of the country. The project seeks to improve infrastructure for the Government of India, including retrofitting and refurbishing some heritage buildings to make them functional and safe.        Source: The Hindu   The Central Vista Redevelopment Project was launched in 2019 .   The project includes converting North and South Blocks into public museums while creating an ensemble of new secretariat buildings to house all ministries, relocating the Vice President and the Prime Minister's offices  and residences near the North and South Blocks, and revamping the 3 km (1.9 mi) long  Rajpath  between  Rashtrapati...
Read more

Demolition of Building Structures

Image
Demolition of a building is the process of dismantling or destroying a structure after its life of serviceability by pre-planned and controlled methods. It is the science and engineering in safely and efficiently tearing down buildings and other artificial structures . The tallest planned demolition of a building was the 47-storey Singer Building in New York City , built-in 1908 and torn down in 1967–1968 to be replaced by One Liberty Plaza Building Demolition methods: There are two types of demolition methods used for buildings and structures, Non-explosive demolition and Explosive demolition. In the non-explosive method, demolition of a structure is done with some equipment, without the use of any explosive. In contrast, in the explosive method, demolition is done with the help of bombs and explosives. Building Demolition Process: Different steps are involved in the process of demolition of building structures. They are: 1. Surveying 2. Removal of hazardous materials 3...
Read more