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London, England, BedZED Housing Project


General Information:

It is the largest mixed-use zero-carbon residential project in Great Britain. This project, which brought together sustainable building standards when it was built between 2000 and 2002, was established in the old unused industrial area covering approximately 2500 m2 , including 82 affordable residences and workspaces / offices in a mixture of different styles of buildings such as BedZED apartments, duplexes and town houses. .

The BedZED project was designed by architect Bill Donster to support a zero-carbon, environmentally friendly and sustainable life approach . (one)

BedZED Konut Projesi

"Street in BedZED" by hotzeplotz from London, United Kingdom - street in BedZED. Licensed under CC BY-SA 2.0 via Commons -

Project Principles:

* Zero Energy: The project will only use renewable energy resources obtained from the existing area. Within the project, a cogeneration (CHP - combined heat and power) facility , developed with 777 m2 of solar panels , wood waste fuels for district heating and electricity generation, was established. Although the required technology is used successfully, there are problems in technical applications due to the inability to use the gasifier system.

* High Quality: Apartments have been designed to high standards in order to attract the attention of experts on these issues in the city.

* Energy efficiency: The orientation of the houses is positioned in an east-west direction, that is to take advantage of the solar energy facing the south facade, with three layers of glass and high thermal insulation, it is aimed to reduce energy demand and then minimize energy loss. (2nd)

* Water efficiency: A large amount of rainwater falling within the site is collected and reused. Water equipment is selected from efficient faucets and recycled water is planned to be reused as much as possible. A "living machine" has been installed for recycling waste water, but it has not been put into practice yet.

* Selection of low environmental impact materials: Construction materials are procured from renewable and recyclable sources from companies located within 56 km of the construction site, reducing transportation costs and contributing to less vehicle gasoline and carbon emissions, and also to the development of the local economy. A multi-dimensional win-win strategy has been created.

* Waste recycling: Garbage collection facilities are designed to support recycling. In addition, different waste baskets for different waste have been allocated in the kitchens to separate waste from the first hand. (2) (Watch in the video on the right)

BedZED Konut Projesi

* Transportation: The concept of low energy consumption, which is the BedZED project concept, reduced the use of cars, restricted the parking areas and narrowed the street spacing, mainly for public transportation, bicycle use, walking activities. In addition, public transportation and transportation have been encouraged by the project location and its proximity to the stops where regular train and bus services take place. At the same time, space was reserved for electric cars for common use and electric charging points were determined. (2nd)

Housing Project Performance:

According to observations made in 2003, the BedZED project achieved the following achievements compared to the Great Britain standard houses:

* 88% reduction in surface heating requirement

* 57% reduction in hot water consumption

* Electricity usage per capita is determined as 3 kWh / day , this value is 25% less than the average of Great Britain, 11% of this amount should be provided by solar panels and the remaining part should be provided by cogeneration (CHP - combined heat and power). There is a delay in the use of the facility due to the economic problems experienced by the company.

* 50-67% reduction in overall water consumption

* There was a 65% reduction in distance from the number of miles per vehicle made by house owners. (2nd)

Problems Experienced in the Housing Project

The BedZED project has generally yielded positive results until 2010. Homeowners and neighbors are greatly satisfied with the project. Despite this, some important failures also stand out. These:

* Since the operation of biomass sawdust-sourced boiler (biomass gasifier) ​​cannot be used any more, the backup power source of this system is operated with gas boilers. The chip-based CHP system can be operated intermittently (not working at night) and creates reliability problems due to technical problems.

* "Living machine" can not treat enough clean water for recycling waste water. The high cost of the facility also made this system unsustainable.

* "Sunspaces" are insufficient for passive heating.

* Despite best efforts, the ecological footprint of residents has been reduced to just 1.7 planets. The targeted ecological footprint is 1.0 planetary value. Great Britain average is 3.0 planets. (2nd)

Note: For more detailed reviews, you can view the BedZED Report information report.

BedZED Konut Projesi

Chimneys are not for ornamental purposes, they are designed to take fresh air from one side by changing direction according to the wind, and to provide passive ventilation without using energy by throwing the polluted air out on the other hand. In addition, small-sized solar panels are used on the south facade and the green roof on the north facade, and every free space is evaluated with conscious practices.

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