Aqua energy

ENERGY EFFICIENCY - aqua energy Module number: P32079 Name: ZIXUAN CHEN Student number: 14081889 FEB-2015 to MAY-2015

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HIS REPORT AND SUBSEQUENT DESIGN PROCESS SEEKS TO ANSWER THE QUESTION: "HOW TO APPLY AQUA ENERGY IN

HIGH DENSITY CITY REGARDING ICKNIELD PORT LOOP DESIGN

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PROPOSAL?"

3.5% Freshwater

People in the world don’t have access to safe water. This is roughly one in ten of the world’s population.

96.5% Saltwater (Oceans, sea)

2.5 billion people don’t have access to adequate sanitation, one in three of the world’s population.

800 PEOPLE PER HECTARE

Over 500,000 children die every year from diarrhea caused by unsafe water and poor sanitation. That’s over 1,400 children a day.

In order to meet the high density city with 800 people per hectare, calculation of how much space this was required, I first worked out the number of dwellings by dividing these figures by 2.3 which is the average number of people per household in the UK (ONS, 2013:1). This area popu¬lation for

BIRMINGHAM CITY CENTRE

the 800 people per hectare model would have been 6,950 people and 3,000 dwellings required roughly in 8.83 hectares. The size of the model and the assumed density/ population impact upon not only the environmental quality/densification issue but also the land uses proposed.

Birmingham

West-Birmingham

Icknield Port Loop

Jewellery Quarter Station

Icknield Station

Snow Hill Station

Moor Street Station

New Street Station

In order to efficient employ the site that the existing buildings (factories) within the site would be removed to other site.

Removing the existing waste building in from the site, also could improves the environment and more easy the organise the block scale and location.

According to the routes around the site, there will be arranged wide arterials along the big blocks as well as one-way street added transit to remaining arterials.

The road networks would divided the block sites and guarantee to satisfied the traffic flow around each blocks. There also will design a new train station in the north-eastern to connect to city centre.

Due to the existing site feature, there is the loop canal surround the site and to meet the water requirement in the high density area that the canal is good for planning.

To use the water more efficiency that there would be created a new canal to connect the site in the middle. The new canal not only contributes to the energy efficiency but also releases the traffic pressure in the site with sailing.

To satisfy the energy efficiency theme in the site that all the essential design principles is dominated natural energy required.

South-west Prevailing Wind

Cold Current

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South Prevailing Wind

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Natural context

Urban framework

Block scale

Road network

Water resource

Initial model

To deliver energy efficiency development in high density city – creating a water system to promote the value of "loop" river.

• Urban framework layout adjusts the Icknield Port Loop site context (geographical, climate, solar access, energy efficiency, etc) • Satisfied the high density population with land used in water recycles system.

• Limiting the height of block to maximize solar access and passive ventilation.

• Open spaces combat heat island phenomenon as well as promote water retention in the city.

• Providing more pedestrian and cycle lanes, even water routes to encourage people give up

The road network layout is more direct for people driving; also minimize the road scale to persuade people give up driving within walkable distance. Cycling lands are all around the site to encourage people riding instead driving. Canal sailing provides more option for people to choose. New canal not only could enhance whole water recycle system, but also provide a leisure place for people have different activities, such as rowing, fishing and jogging, etc. Road network and water way network both could as transit pattern in the urban framework. In road network, people take less time to go through the blocks achieve the destination. In water routes, people could enjoy the journey on the boats. All the building height and thick have tested to meet the solar gain and the passive ventilation.

RESIDENTIAL

LOCAL FACILITIES

EDUCATION

EMPLOYMENT

PRIME RETAIL

Table: Initial Areas Tested – Spatial Capacity

20th, January

22nd, December

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Creating more open space in high density city is very helpful for people having outdoor activity as well as improve environment quality.

Cause of the courtyard space too small to allow the sufficient sunlight access. Therefore, stepping the block height to allow more sunlight accept.

In order to reduce the overshadowing reflect on the building facade at the back. The tower roof designed to inclined plane benefit to stormwater collecting.

Rain garden alleviates the flooding problem from stormwater.

Filtering the water for urban canal (loop). Adjusting the micro-climate in the city and freshing the air access into the city.

The embankment along with the loop is designed to filtration system and landscape.

To adjust the micro-climate in the high density reisdential area , there are inserting the pond in the block. It also could be a retention pond in city water system.

Design the new canal throughout western to eastern of the site to improve the water reuse system in a high density city. And create a energy efficiency of aqua feature city.

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Meadow

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Soil Layer

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Filter Layer Pump

Overshadowing

Due to the height of the tower, the overshadowing reflect on the building facade at the back.

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Retention Pond

Minimise overshadowing

In order to reduce the overshadowing reflect on the building facade at the back. The tower roof designed to inclined down toward courtyard in the block.

Overflow to canal

Water recycle system concept applies in the city to alleviate the water shortage with high density population. Green roof harvesting layer on the building optimise the stormwater reuse.

Green roof 3

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Filtration step 1

Maximise solar access

Wetland could filtrate the prevailing wind from southern to go through the urban. It can also maintain the biological diversity in the city.

dry basins naturalised swales bench pedestrian path

Rain garden is as retention to suplying daily water, such as toilet watr, irrigation in raining day. As general, it is a recreation area for people interaction and activity.

Stepping roof design can contribute to stormwater filtration along the green roof as well as maximise the solar access.

vehicle lane tree pits cycle lane

hydrophilic region

Greenroof

Underground Retention

The path along the loop canal is a part of the water recycle system as the filtration system to ensure the wasted water drained have essential filtration.

The new canal is created to improve the water reuse system efficiency and revived both sides along the canal with landscape.

The water harvesting through the green roof or the permeable meadow in the park to lead the water into recycle system. Also, it can enhance the canal journey, such as people travel on the boat to visist

The artificial pond is created in residential blocks would be alleviated the micro heat island phenomenon as well as integrate into the water recycle system.

The water recycle system connects into the loop canal and new canal to improve the water value in the site. The whole recycle system not only designs for potable water, irrigation, adjusting micro climate, but also water transportation, ecology fish farm and recreation water park.

Tree Pits

Tree

Open Space

Car Cycle Lane Lane

Green Roof

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Open Space

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Green Roof

A-A’ Section - Water recycle system

City centre - new canal

Rain garden

Fish Farm

Water Transportation

Canal path

Street perspective