Latifa Portfolio

Oxford Latifa Mohamed

Brookes

University

2018-2019

SBPD

Sustainable

Building

Performance

& Design (MSc)

Individual
Portfolio

Contents

Mealan; Versatile Food Hub

1.Building Simulation and design; Sem 2
Individual Project.

Overheating risk analysis; London

2.Building Simulation and design; Sem 1
Individual Project.

High Density Proposal; Milton Keynes

3.Urban Sustainability & Microclimate; Sem 2
Group Project.

Headington Hill Hall

4.Post Occupancy Evaluation; Sem 1
Group Project.

Mealan; Versatile Food Hub

Milan is famous for food.
The versatile food Hub is more than a street food Market but a learning,
fun and cultural place with accommodation for both staff and students,
because the Street food market will alternate between indoor and
utdoor during summer and winter season to an indoor cooking class.
The hub provides maximum flexibility interms of function, users and
spaces. Passivhaus and sustainability concepts have been considered in
the design.

Food Markets are places for experiencing the
diversity and culture of a place. Since the site
poses as a touristic destination incorporating a
food hub will suit better.

Food Market = IDENTITY Main building
Outdoor stalls

Market/Cooking class Courtyard subtraction to Fingerprint green
Outdoor stalls allow Cross ventilation facades
Accomodation and light

F

9 1812 15
513 2
14
7
19 20 1
6
10 17 8
3.000164
11 0.150 = 3

20 x

F

F

W

12

10 12 F
9 13
8 14 W 10
7 15
6 16
5 17
4 18
3 19
2 20
1
11
1 20 x 0.150 = 3.000 W

20 2 11 7
19 3
18 4
17 5
16 6
15 7
14 8
13 9
12 10
11
20 x 0.150 = 3.000

W 11

3 Ground Floor Plan
1:1000
F 20 x 0.150 = 3.000 8
20 x 0.150 = 3.000
20 9 2
19
18 1
17 2
16 3
15 4
14 5
13 6
12 7
11 8
9
10
10
9
8 11
7 12
6 13
5 14
4 15
3 16
2 17
1 18
19
4 20 23 x 0.152 = 3.5001
2
5 1 3
4
LEGEND 5
1. Street food market/ 6
Summer cooking class 7
2. WC 8
3. Lobby 9
4. Library 10
5. Stairs to basement storage, 11
preparation area, loading 12
6. Office 13
7. Staff accommodation 14
8. Reception 15
9. Storage 16
10. Courtyard 17
11. Outdoor stalls 18
12. Subpods composting system 19
20
21
22
23

6

23 x 0.152 = 3.500

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

Furniture configuration

Indoor winter Summer
market cooking class

NON SLIP Overheating frequency
PORCELAIN
TILES R 52.586 STONE 10.0% 9.2% 9.0% 8.8% 8.5% 8.2%
PAVEMENT 9.0%
W 8.0%
7.0%
6.0% 7.9%
5.0%
R 49,300 4.0%
3.0%
+0.15 2.0% 4.3%
R 65.738 1.0%
+0.30 0.0%

EXPOSED
CONCRETE
FLOOR

R 79,460

Base case Reduce Window u Fiberglass Insulating Add roof Night

F living room value to window DHW insulation Ventilation

windows 0.2 w/m2k frame Pipes

IMPROVEMENTS

Staff unit (Second floor)

0 5 10 15m

The unit chosen is considered to experience Improvements are done to reduce the overheating frequency to meet Passivhaus.
the worse condition due to its orientation Total emissions CO2 Equivalent 16.3 kg(m2a). (Primary Energy)
and floor level.

A EH I

0.300 2.300 STUDENT SHARED ROOF LEVEL
ACCOMODATION / RENTALS 9.50
5.200 1.150
WC SECOND
0.200 TOWER GARDENS 2.700 0.300 0.700 1.850 STORAGE, PREPARATION AND FLOOR
MARKET/ CULINARY LOADING/OFFLOADING BAY 6.30
FIRST FLOOR
CLASS 3.30

3.300 GROUND FLOOR
0.30
GROUND LEVEL
0.00

Section-01 15m

0 5 10

Detail 19mm Recycled Timber boards View showing urban farming incoperated on the roof
60mm Service void between Counter battens
100mm Exposed concrete floor, 90mm CLT
Concrete Insulation block Proclima membrane,Airtightness membrane
200mm Insulation 200mm Insulation between studs
Solitex plus, Breather membrane
Building model 25mm Battens
19mm Recycled Timber cladding
Air layer
50mm Steel column
100mm Metal frame
Steel beam
Steel hook
20mm Water pipe
Root barrier
Water retention layer
Composite substrate

Overheating analysis risk; London

BASE CASE.
HVAC template: Radiator heating, Boiler HW,
Natural Ventilation
Construction template: Best practice, Medium
weight
Infiltration rate: Reference
Glazing template: Best practice
Glazing type: Tripple Low Emissivity (e5=.1) Clr 3mm/
13mmArg
Glazing % opening area: 5

According to CIBSE TM52 in Design Builder, the building has an
overheating risk, for both current and 2080 weather data.

Current weather

2080 weather

There's an increase of 2.2ºC, Operative temperature.

Weaknesses resulting to overheating risks;
1.Large, unshaded south windows increases solar gains
2.Small window opening area, hence poor ventilation
3.Energy inefficient Lighting fixtures increases severe internal gains
4.Medium weight hence moderate heat loss

IMPROVED CASE.
HVAC template: Radiator heating, Boiler
HW, Natural Ventilation
Construction template: Best practice,
Medium weight
Infiltration rate: 1.5M3/M2.h @50pa
Glazing template: Best practice
Lighting template: LED
Glazing type: Tripple Low Emissivity
(e5=.1) Clr 3mm/13mmArg
Glazing % opening area: 50

Improvements;
1.Exterior Louvres added on South and West windows to prevent from evening
sun and Summer sun.
2.East and South windows size reduced and internal blinds with high reflective
slats added to prevent from morning sun
3.Lighting control tab is checked to minimise internal gains

High density Proposal; Milton Keynes

Milton Keynes development has been heavily influenced by the
Garden City movement developed in 1898 by Sir Ebenezer
Howard, a British urban planner.

The project is a mixed-used facility with strategies on minimising
Urban heat island. EnviMet Software is used for simulations.

Conceptual Development

Mass extrusion from site boundary Height gradient with respect to sun exposure,

wind direction and urban geometry

Courtyard subtraction allow light, ventilation Entrances linking pedestrian and vehicular paths

Introduce ampitheatre to prevent Stepped to reduce building density and

strong winds at the entrance increase light, ventilation

Bridges to link the spaces Green roofs to prevent urban heat island

Option 1 Improved option

Wind speed (Daytime)

Increased number of openings on NE end to
reduce air pressure on single entrance.
Improved design introduces another opening
for wind to escape.
A more open ground plane improved the
general wind circulation on the ground as
narrow pathways in the previous design
causes wind stagnation zones.

Option 1 Improved option

Air temperature (Daytime)

With improved wind circulation in the
improved option, it minimises the ground
air temperature significantly through
cooling.
The overall temperature is observed to
have dropped by 0.4ºC within the site.

S-01
S-02

S-01

Waterbody breeze system for daytime summer cooling,
night time warming and humidity rise during winter. (Urban
heat island strategies)

S-02

Post Occupancy Evaluation; Headington Hill Hall

Headington Hill Hall is a four storey Academic Institution building housing the
School of Law, The Confucius Institute, Publishing team and Students records
team. It was originally a home, then a military hospital, a rehabilitation centre and
lastlty leased to Oxford Brookes University. Due to the changes in use It is
appropriate to conduct Post Occupancy Evaluation.

Methodology

Energy Audit

Benchmark for Annual Gas and Electricity consumption (per m2)

Headington Hill Hall performs better than CIBSE TM48 20008 and ECON.19 Type 1 typical
Office, However electricity is consumed less on LED lights and office electrical appliances.

Benchmark for Annual Gas and Electricity CO2 emission (per m2)

Heading ton Hill Hall has less CO2 emissions.

Thermal Images Wall thermal
performance is
Two layered single good.
glazing performs
far better than
single glazing.

Occupancy Feedback

Recommendations
Low cost

Sustainable Efficient Clear Service all
commuting temperature
Incentives process Maintanenace windows

Instructions

Change BMS schedule; 5:30am – 6:30pm (save £550), Only
zones being used on weekends should have heaters ON

Recommendations
Medium cost

Add outdoor Add TRV Remove excess
lighting controls to doors
rooms without
High cost

Replace mezzanine Replace all single glazing
glazing with low g-value with double glazing