For this project, the place that I selected is the Study room, located at the back, right hand side of the ground floor of a double-storey house In the initial design, this room was used as a guest room, and didn’t design it as a study room. However, with the demand for more reading area later, my parents decided to turn it into a study room, which led to many subsequent problems Many facilities in the room are not suitable for study and cause some inconvenience for us to study there I wanted to take this opportunity to recreate this space to be more comfortable and suitable for study.
-During day time, due to the orientation of this room and the position of the windows, the sunlight can't get into this room well in the day. We need to turn on the room lights even in the day time, which is not eco friendly
-During night time,the lights in this room are not suitable for studying. Especially at the side study area, because the ceiling light located at our back, the shadow will be projected on our books and affect our study
-We bought a desktop study lamp to try to solve
Unfortunately, another problem arises. The desk lamp is too bright, me as I have astigmatism and nearsightedness.
-We shall change the ceiling box lights to downlights that are more focused and also to change the study lamp to LED types so that the brightness can be adjusted to our requirement.
-The shadow of the ceiling fan greatly affects my sight when I study, especially in the front study area. Besides that, the flickering shadow causes me to feel dizzy if I stay there for a long time at night.
-The reason for this problem installed in this room are wrong. We should install direct lights and install them away from the fan.
-Because this room is located at the right rear side of our house, the wind is blocked by the house at the rear and on the right, resulting in a very stuffy room. The room is very hot in the afternoon
-The air conditioner in this room shall be replaced because it is old, not so efficient and noisy Moreover, with the development of science and technology, the newly introduced air conditioners can save more electricity and be more eco friendly
1)Led
Led Surface Light = 18W
Quantity = 2
Duration Use = 12 hours
Daily Energy Consumed = 12hours x 31 days x (18W/1000) x 2 unit
Total = 13.392 kWh
Ceiling Fan = 91W
Quantity = 1
Duration Use = 12 hours
Daily Energy Consumed = 12hours x 31days x (91W/1000) x 1unit
Total = 33.852 kWh
Air Conditioner = 780W
Quantity = 1
Duration Use = 1 hours
Daily Energy Consumed = 1hours x 31days x (780W/1000) x 1unit
Total = 24.18 kWh
Desk Lamp = 10W
Quantity = 1
Duration Use = 5 hours
Daily Energy Consumed = 5 hours x 31days x (10W/1000) x 1unit
Total = 1.55 kWh
Desktop = 300W
Quantity = 1
Duration Use = 10 hours
Daily Energy Consumed = 10hours x 31days x (300W/1000) x 1unit
Total = 93 kWh
Printer = 40 W
Quantity = 1
Duration Use = 1 hours
Daily Energy Consumed = 1 hours x 31days x (40W/1000) x 1unit
Total = 1.24 kWh
Phone Charger= 4W
Quantity = 1
Duration Use = 3 hours
Daily Energy Consumed = 3hours x 31days x (4W/1000) x 1unit
Total = 0.372 kWh
Loudspeaker = 100W
Quantity = 1
Duration Use = 10 hours
Daily Energy Consumed = 10 hours x 31days x (100W/1000) x 1unit
Total = 31 kWh
Gaming Laptop = 300W
Quantity = 1
Duration Use = 12 hours
Daily Energy Consumed = 12 hours x 31days x (300W/1000) x 1unit Total = 111.6 kWh
Total = 13.392 kWh + 33.852 kWh + 72.54 kWh + 1.55 kWh + 93 kWh + 1.24 kWh + 0.372 kWh + 31 kWh + 111.6 kWh = 313.186 kWh
Lumen = 600lm Power consumption = 12W Cut-Out Size = 130mm Output voltage = 50-100V Price = RM20
Features : - 1.0kv surge protected - 20,000 HRS LIFE - 80% energy saving - Power Factor : 0.6 - No UV IR radiation - Sirim Certificate - 1Years Warranty
The reason that I selected this light is because it is low cost and easy to install. It can provide sufficient light for the study room.
Rated power = 8W
Rated Voltage = 100-240 V , 50/60Hz
Rated Input = 5V/2A
Power Factor = 0.5
USB Output = 5V-1A
Price= RM30
Features:
- Rechargeable LED desk lamp with micro USB charging pin
- Simple touch switch mechanisms for changing level brightness
- 3 adjustable level brightness
- 3 different lights to choose from
- Strong and flexible gooseneck allow for different position and 360° angle adjustment
- Durable high quality LED rated for 36000 hours
- Long battery life
- Good quality product
- Value for money
Motor RPM = 640 - 1300
Wattage = 25W - 75W
Voltage = 220 - 240V~ 50Hz
Fan Width = 393.7mm
Fan Height =571.5mm Price = RM 598
Benefit
SWIRL360 DEGREES Motors swirl in a 360 degrees circular motion with 5 speed options to deliver perfect airflow
The main reason that I selected this fan is due to its small size, 360 degree swirl function and can avoid the shadow in the room. This fan will solve the shadow problem that we had previously with the large size fan.
Length= 4.44m Width = 3.78m
-Space area 4.44m x 3.78m = 16.7832m2 16.7832 x 700 = 11748.24 btu/hr
-Occupant 5x 50 = 2500btu/hr
-Heat from electrical equipment
Desktop = 300W, Printer = 40W, Phone Charger= 4W, Loudspeaker = 100W, Gaming Laptop = 300W, Led Panel Light = 12W x 6 = 72W, Desk Lamp = 8W, Ceiling fan = 75W
Total= 300W + 40W + 4W + 100W + 300W + 72W + 8W + 75W = 899W
899 W X 3.5 = 3146.5btu/hr
-Total Btu/hr = 11748.24 btu/hr + 2500btu/hr + 3146.5btu/hr = 17394.74 btu/hr
-Air Conditioner Sizing 17394.74 btu/hr / 9800 Btu/hr = 1.77 HP
-Conclusion: Based on this calculation I select a 2 HP air-conditioner for this study room.
Power Input = 1650W
Dimensions Height = 290mm(W) X 619mm(H)
Cooling Capacity = 5.15kW / 17,600Btu/h Voltage = 230V
Running Current = 7.3A Price = RM 2249
Benefit
-Powerful Mode en instant powerful cooling
-AEROWINGS delivers faster and further airflow across the room
-Eco-friendly R32 refrigerant provides greater energy and cost-effectiveness at low environmental impact
-2.0HPhigh cooling capacity offers fast and powerful cooling for large rooms
Led Panel Light =12 W
Quantity = 6
Duration Use = 12 hours
Daily Energy Consumed = 12 hours x 31days x (12W/1000) x 6unit
Total = 26.784 kWh
LED Rechargeable Desk Lamp = 8W
Quantity = 1
Duration Use = 5 hours
Daily Energy Consumed = 5 hours x 31days x (8W/1000) x 1unit
Total = 1.24 kWh
Ceiling Fan = 75W
Quantity = 1
Duration Use = 12 hours
Daily Energy Consumed = 12 hours x 31days x (75W/1000) x 1unit
Total = 27.9 kWh
Air Conditioner = 1650W
Quantity = 1
Duration Use = 1 hours
Daily Energy Consumed = 1 hours x 31days x (1650W/1000) x 1unit
Total = 51.15 kWh
Desktop = 300W
Quantity = 1
Duration Use = 10 hours
Daily Energy Consumed = 10hours x 31days x (300W/1000) x 1unit
Total = 93 kWh
Printer = 40 W
Quantity = 1
Duration Use = 1 hours
Daily Energy Consumed = 1 hours x 31days x (40W/1000) x 1unit
Total = 1.24 kWh
Phone Charger= 4W
Quantity = 1
Duration Use = 3 hours
Daily Energy Consumed = 3hours x 31days x (4W/1000) x 1unit
Total = 0.372 kWh
Loudspeaker = 100W
Quantity = 1
Duration Use = 10 hours
Daily Energy Consumed = 10 hours x 31days x (100W/1000) x 1unit
Total = 31 kWh
Gaming Laptop = 300W
Quantity = 1
Duration Use = 12 hours
Daily Energy Consumed = 12 hours x 31days x (300W/1000) x 1unit Total = 111.6 kWh
Total = 26.784 kWh + 1.24 kWh + 27.9 kWh + 51.15 kWh + 93 kWh + 1.24 kWh + 0.372 kWh + 31 kWh + 111.6 kWh = 344.286 kWh
Source
A-1
A-2
B-1
C-1
Top Lamp (Bukit Tinggi) Sdn. Bhd. No.66, 66-1, Lorong Batu Nilam 21A, Bandar Bukit Tinggi, 41200 Klang, Selangor
Top Lamp (Bukit Tinggi) Sdn. Bhd. No.66, 66-1, Lorong Batu Nilam 21A, Bandar Bukit Tinggi, 41200 Klang, Selangor
Alpha Home Appliances Sdn. Bhd. 6, Jalan Sungai Kayu Ara 32/37, Berjaya Park, Section 32, 40460 Shah Alam, Selangor
HLK (Chain-Store) Sdn. Bhd. (Bandar Botanik) 77, Jalan Mahogani 5, Bandar Botanik, 41200 Klang, Selangor
Figure 1.1 Selected Placed
The chosen site for this assignment 2a is the same room as assignment 1, is a study room, located at the back, right hand side of the ground floor of a double-storey house
7 00 A M 12 00 P M 5 00P M
Figure 1.2 Temperature measured in 3 different period of the day
Foo Shiau Jie 0349482
Figure 2.1 Compass direction of Wall A
Figure 2.2 Perspective view of Wall A
Figure 2.3 The red highlighted wall indicate as Wall A
Heat transfer rate calculation of WALL A
Assuming the indoor temperate is 72 °F (Based on the air conditioner temperature).
Time 7 a.m. 12 p.m. 5p.m.
Temperature
External = 82 °F Internal = 72 °F ΔT = 82 °F - 72 °F = 10 °F
External = 82 °F Internal = 72 °F ΔT = 82 °F - 72 °F = 10 °F
External = 78 °F Internal = 72 °F ΔT = 78 °F - 72 °F = 6 °F
Heat Transfer Rate Of Wall
q = A * T R q =128 52 ft² *10°F 1.18 R q=1089.15 BTU/hr
q = A * T R q =128 52 ft² *10°F 1.18 R q=1089.15 BTU/hr
q = A * T R q =128 52 ft² *6°F 1.18 R q=653.49 BTU/hr
Heat Transfer Rate Of Door
q = A * T R q = 19.8 ft² *10°F 1.7 R q = 116.47 BTU/hr
q = A * T R q = 19 8 ft² *10°F 1.7 R q = 116 47 BTU/hr
q = A * T R q = 19 8 ft² *6°F 1.7 R q = 69 88 BTU/hr
Total Heat Transfer Rete 1089.15 + 116.47 =1205 62 BTU/hr 1089.15 + 116.47 =1205 62 BTU/hr 653.49 + 69.88 =723 37 BTU/hr
Figure 2.6 Compass direction of Wall B
Figure 2.7 Perspective view of Wall B
Figure 2 8 The yellow highlighted wall indicate as Wall B
Figure 2.9 Isometric of Wall B
Figure 2.10 Elevation of Wall B
Material Brick Wall Window 1 Window 2
Area
= 3m (H) x 4 64m (W) = 13.92 m² = 149 83 ft
= 1 46m(H) x 0 55m(W) = 0.8 m² = 8 6 ft²
ue 0.91
= 1 46m(H) x 0 55m(W) = 0.8 m² = 8 6 ft² Re
2. Heat transfer rate calculation
2.2 Heat transfer rate calculation of WALL B
Assuming the indoor temperate is 72 °F (Based on the air conditioner temperature).
Time 7 a.m. 12 p.m. 5p.m.
Temperature
External = 77 °F Internal = 72 °F ΔT = 77 °F - 72 °F = 5 °F
External = 82.4 °F Internal = 72 °F ΔT = 82.4 °F - 72 °F = 10.4 °F
External = 87.26 °F Internal = 72 °F ΔT = 87.26 °F - 72 °F = 15.26 °F
Heat Transfer Rate Of Wall
q = A * T R q =149 83 ft² *5°F 1.18 R q=634 87 BTU/hr
q = A * T R q =149 83 ft² *10 4°F 1.18 R q=1320 53 BTU/hr
q = A * T R q =149 83 ft² *15 26°F 1.18 R q=1937 63 BTU/hr
Heat Transfer Rate
Of Window 1
q = A * T R q =8 6 ft² *5°F 0.364 q = 118 13 BTU/hr
q = A * T R q =8 6 ft² *10 4°F 0.364 q = 245 71 BTU/hr
q = A * T R q =8 6 ft² *15 26°F 0.364 q = 360 54 BTU/hr
Heat Transfer Rate Of Window 2
q = A * T R q =8 6 ft² *5°F 0.364 q = 118 13 BTU/hr
q = A * T R q =8 6 ft² *10 4°F 0.364 q = 245 71 BTU/hr
Total Heat Transfer Rete
634.87 + 118.13 +118 13 = 871.13 BTU/hr
1320.53 + 245.71 +245 71 = 1811.95 BTU/hr
q = A * T R q =8 6 ft² *15 26°F 0.364 q = 360 54 BTU/hr
1937.63 + 360.54 +360 54 =2658.71 BTU/hr
Figure
Figure
Figure 2.13 The green highlighted wall indicate as Wall C
Figure 2.14 Isometric of Wall C
Figure 2.15 Elevation of Wall C
Material Brick Wall Window
Area
= 3m (H) x 3.98m (W) = 11.94 m² = 128 52 ft²
= 1.46m (H) x 1.76m (W) = 2.57 m² = 27 66 ft²
2. Heat transfer rate calculation
2.3 Heat transfer rate calculation of WALL C
Assuming the indoor temperate is 72 °F (Based on the air conditioner temperature).
Time 7 a.m. 12 p.m. 5p.m.
Temperature
External = 77 °F Internal = 72 °F ΔT = 77 °F - 72 °F = 5 °F
External = 82 4 °F Internal = 72 °F ΔT = 82.4 °F - 72 °F = 10.4 °F
External = 87 26 °F Internal = 72 °F ΔT = 87.26 °F - 72 °F = 15.26 °F
Heat Transfer Rate Of Wall
q = A * T R q =128.52 ft² *5°F 1.18 R q=544 58 BTU/hr
q = A * T R q =128.52 ft² *10.4°F 1.18 R q=1132 72 BTU/hr
q = A * T R q =128.52 ft² *15.26°F 1.18 R q=1662 05 BTU/hr
Heat Transfer Rate Of Window
q = A * T R q =27 66 ft² *5°F 0.364 q = 379 95 BTU/hr
q = A * T R q =27 66 ft² *10 4°F 0.364 q = 790 28 BTU/hr
q = A * T R q =27 66 ft² *15 26°F 0.364 q = 1159 6 BTU/hr
Total Heat Transfer Rete 544.58 + 379.95 =924 53 BTU/hr 1132.72 + 790.28 =1923 BTU/hr 1662.05+1159.6 =2821 65 BTU/hr
Figure 2.16 Compass direction of Wall D
Figure 2.17 Perspective view of Wall D
Figure 2.18 The blue highlighted wall indicate as Wall D
Material Brick Wall Area
= 3m (H) x 4.64m (W) = 13 92 m² = 149.83 ft
Heat Resistant
Brick R value 150mm= 5 9" R = (5.9” / 4”) x 0.8 = 1 18 R
Assuming the indoor temperate is 72 °F (Based on the air conditioner temperature)
Time 7 a.m. 12 p.m. 5p.m.
External = 82 °F Internal = 72 °F
Temperature
ΔT = 82 °F - 72 °F = 10 °F
External = 82 °F Internal = 72 °F
ΔT = 82 °F - 72 °F = 10 °F
External = 78 °F Internal = 72 °F
ΔT = 78 °F - 72 °F = 6 °F
Heat Transfer Rate Of Wall
q = A * T R q =149.83 ft² *10°F 1 18 R q=1269.74 BTU/hr
q = A * T R q =149.83 ft² *10°F 1 18 R q=1269.74 BTU/hr
q = A * T R q =149.83 ft² *6°F 1 18 R q=761.85 BTU/hr
According to the data collected and calculated, it clearly shows wall C has the highest value of heat transfer rate which is 2821.65 BTU/hr at 5p.m. I believe that wall C has the most value heat transfer rate is because of the direction of the sun path that this walls are facing, and also wall c actually has a large windows therefore it transfer more heat into the interior space.
Figure 4.1 Selected Placed Plan View
Based on the critical wall identified and calculated from assignment 2A, it shows that wall C (which is green highlighted wall indicate in plan view) has the highest value of heat transfer rate. In order to reduce the heat transfer, I need to design an insulation panel which can be placed on the window to reduce the afternoon sunlight through the window.
After having some research and finding to reduce the insulation panel, I get the Inspiration on design according folding furniture and origami. I think this kind of folding furniture is very easy to store, and the nice origami can provide special light and shadow effects as well as aesthetic effects Besides that, I also get inspiration in Shoji which is is a door, window or room divider used in traditional Japanese architecture, consisting of translucent (or transparent) sheets on a lattice frame. I am confident that this design can reduce the heat and allow some light to pass through like shoji.
Figure 5.4 Design idea drawing
This design is simple and low cost, It can served the intended purpose of reducing the heat and allow the light to past thru. Furthermore, the origami structure can make the product more durable and can provide special light and shadow effects as well as aesthetic effects. Besides that , this design have very small footprint and easy to operate and convenient for storage
Figure
Figure
Figure
Figure 6.9 Completed view
Figure 6 9 Perspective View with Product
Figure 6.9 Temperature without Product
Figure 6.9 Temperature with Product
The Temperature was 5 8 lower after applied this product This proves that this product can effectively insulate heat
Rm20 Rm20 Rm25 Rm20 Rm5 Rm15 Rm18 Rm45 Rm40 Rm30 Rm30 Rm25 Rm30 Rm35 Rm25 Rm30 Rm15 Rm25 Rm100 Rm30 Rm30 Rm15 Rm20 Rm10 Rm658 Rm27
At the end of the project, the evaluation of the design value was surprisingly good Throughout the process of making the product I am very happy with the outcome I am very glad to see many different kinds of design and learn more about different materials for heat insulation. Besides that, I get a deeper understanding of heat ransperate for this assignment, I will apply it in my future design. Therefore, the overall product that I experience making the product is at a lost cost of Rm4.50. The result at the design value increased to RM27.42. Which will benefit me to sell at the market In conclusion, I also think that there is still a lot that I can improve after this presentation, especially my presentation skills and I will try to be more confident and organised in my next presentation.
Figure 1.1 Chosen Site
Tamarind Square Tree House is the selected site, located in the IT city of Cyberjaya, Malaysia, which is designed as a Cyberjaya community center
The tree-houses in Tamarind Square are the striking feature of the retail centre - structures that are like pinnacles, wrapped by creepers, and connected by a series of stairs - ideal for children to explore and students to hang out. These tree-houses will be used as small shops, reading rooms, yoga zones, meeting rooms and other activities.
The site selection in my final project is located on the fourth floor of Tree House in Tamarind Square. There are two laboratory sections which can provide the opportunity for visitors to step out, participate and create their own experience versus just being passive viewers We have provided several workshops where visitors can experience and observe the cells for themselves like a scientist
Laboratory 1
Laboratory 2
Figure 1.2 Perspective view of laboratory 1
Figure 1.3 Perspective view of laboratory 2
Selected light in Laboratory 1
LED pendant lamp
Figure 2.1 Perspective view of LED pendant lamp
2. Building Services design justification BLD62304 BUILDING SCIENCE AND SERVICES Foo Shiau Jie 0349482
Lighting Luminous Calculation for Laboratory 1
Area (ft²) 29.8 m²
Total lumens needed =Area（m²) x Light Level =29.8 x 500 =14900 lm
Led Ceiling pendant lamp =5600 lm
Total number of LED pendant lamp needed
=Total Lumens needed/Lumens of downlight =14900 lm / 5600 lm =2 66 =3 units of light bulb
Selected light in Laboratory 2
Round LED down light
Figure 2.2 Perspective view of Senco LED pendant lamp
Area (ft²) of the space to be light 80 m²
Total lumens needed
=Area（m =80 x 50 =40000 lm
LED down light =1680 lm
Total number of LED down light needed
=Total Lumens needed/Lumens of downlight =40000 lm / 1680 lm =23.8 =24 units of light bulb
Air Conditioning Calculation for Laboratory 1
Space area 29.8 m² 29.8 x 700 = 20860btu/hr
Occupant 10x 500 = 5000btu/hr
Heat from electrical equipment
Microscope = 40W x 10 = 400W , Tablet = 20W x 10 = 200W, LED pendant lamp= 60W x 8 = 480W, Total = 400W + 200W + 480W = 1080 W 1080 W X 3.5 = 3780btu/hr
Total Btu/hr
= 20860btu/hr + 5000btu/hr + 3780btu/hr = 29640 btu/hr
Conditioner Need
Air-Conditioner Rated Capacity (Btu/hr) of Daikin Ceiling Cassette Wifi Control 3hp FCC-A Series R32 is 30000 Btu/hr 29640 btu/hr / 30000 Btu/hr =0 988 units =1units
Conclusion
Based on this calculation one 3 HP AC with the selected model is needed for Energy Transformation Room to achieve comfort level
Conditioning Calculation for Laboratory 2
Space area 80 m² 80 x 700 = 56000btu/hr
Occupant 15x 500 = 7500btu/hr
Heat from electrical equipment
LED down light= 24W x 24 = 576W 576W X 3.5 = 2016btu/hr
Total Btu/hr = 56000btu/hr + 7500btu/hr + 2016btu/hr = 65516 btu/hr
Conclusion
Air-Conditioner Rated Capacity (Btu/hr) of Daikin Ceiling Cassette Wifi Control 3hp FCC-A Series R32 is 30000 Btu/hr 65516 btu/hr / 30000 Btu/hr = 2.18 unit =2units
Based on this calculation Two 3 HP AC with the selected model is needed for Energy Transformation Room to achieve comfort level
Appliance
kw Qt Time Daily Energy Consumed
Daikin Ceiling Cassette Wifi Control 3hp 2.71 3 8
Senco LED down light 0.024 24 8
LED pendant lamp 0.06 3 8
= 8 hours x 31days x 2.71 x 3unit = 2016 24 kWh
= 8 hours x 31days x 0.024 x 24unit = 142.848 kWh
= 8 hours x 31days x 0.06 x 3unit = 44.64 kWh
Microscope 0.04 10 8
= 8 hours x 31days x 0.04 x 10unit = 99.2 kWh Tablet 0.02 10 8
= 8 hours x 31days x 0.02 x 10unit = 49.6 kWh
Total 2352.528 kWh
Total Bill RM1235.43
