Presentation on uses, types, importance and examples of sun shading devices. Presented by Students of Bachelors of Architecture at Kathmandu Engineering College in Building Science I class . Course Lecturer: Ar. Pranita Sharma Pandey
introduction to shading devices, types of shading devices deatiled explanation, uses of shading devices, solar radiation, configuration, design process of shading devices, shadow angle, building examples.
Natural ventilation and air movement could-be considered under the heading of 'structural controls’ as it does not rely on any form of energy supply or mechanical installation, but due to its importance for human comfort, it deserves a separate section.
Double skin façades. Almost a self-explanatory name for façade systems consisting of two layers, usually glass, wherein air flows through the intermediate cavity. This space (which can vary from 20 cm to a few meters) acts as insulation against extreme temperatures, winds, and sound, improving the building's thermal efficiency for both high and low temperatures.
Credit :
Danish Pathan
Imran Inamdar
Qais Patel
Simran Patel
Tehlil Tamboli
Afshan Saudagar
Ubed Ali Sayyed
Omkar Salkar
Taher Ajmerwala
Danish Sheikh
introduction to shading devices, types of shading devices deatiled explanation, uses of shading devices, solar radiation, configuration, design process of shading devices, shadow angle, building examples.
Natural ventilation and air movement could-be considered under the heading of 'structural controls’ as it does not rely on any form of energy supply or mechanical installation, but due to its importance for human comfort, it deserves a separate section.
Double skin façades. Almost a self-explanatory name for façade systems consisting of two layers, usually glass, wherein air flows through the intermediate cavity. This space (which can vary from 20 cm to a few meters) acts as insulation against extreme temperatures, winds, and sound, improving the building's thermal efficiency for both high and low temperatures.
Credit :
Danish Pathan
Imran Inamdar
Qais Patel
Simran Patel
Tehlil Tamboli
Afshan Saudagar
Ubed Ali Sayyed
Omkar Salkar
Taher Ajmerwala
Danish Sheikh
Shading devices are purpose built devices to protect from the sunlight, from natural light, or screening them from view. Shading devices can form part of the facade or can be mounted inside the building, they can be fixed or operable.
"warm and humid" climate and their designsAnubhav Arora
in this ppt you will know how and what should we design in the warm and humid climate area like Kerala, it is best example for warm and humid zone.
Hope it will be useful for you.
GREEN BUILDINGS
Uses less energy, water, natural resources
Generates less waste
Healthier for people living in it
Energy saved= 30-40% per day
Enhanced indoor air quality, light and ventilation
Potable water saving upto 20-30%
High productivity of occupants
Minimum generation of non-degradable waste
Lower operating costs and increase asset value
The ppt consists of types of climatic regions in india, 5 typesof climatic zones in india, their description , cold and cloudy zone, shimla, himachal pradesh, types of design features according to climatic zones, active and passive cooling and heating techniques in cold and cloudy region.
Shading devices are purpose built devices to protect from the sunlight, from natural light, or screening them from view. Shading devices can form part of the facade or can be mounted inside the building, they can be fixed or operable.
"warm and humid" climate and their designsAnubhav Arora
in this ppt you will know how and what should we design in the warm and humid climate area like Kerala, it is best example for warm and humid zone.
Hope it will be useful for you.
GREEN BUILDINGS
Uses less energy, water, natural resources
Generates less waste
Healthier for people living in it
Energy saved= 30-40% per day
Enhanced indoor air quality, light and ventilation
Potable water saving upto 20-30%
High productivity of occupants
Minimum generation of non-degradable waste
Lower operating costs and increase asset value
The ppt consists of types of climatic regions in india, 5 typesof climatic zones in india, their description , cold and cloudy zone, shimla, himachal pradesh, types of design features according to climatic zones, active and passive cooling and heating techniques in cold and cloudy region.
Nature Smart Daylight Solutions-Eview Global Pvt LtdMadan Barigali
We provide customized nature smart daylight solutions for every requirement to meet the desired lux level for daylighting. Made from the best material available and sourced worldwide.
High indoor temperature under the skylight, strong heat radiation, and the light irritates the eyes are common shortage of glass skylights,customers can increase the glass thermal insulation peformance and decrease glass SC to avoid the problem
Sustainability in Architecture, Interior Design, Landscape, buildingmahmood Albrifkany
Sustainability by openings, architecture, interior design: Future buildings should create healthier and more comfortable lives for their occupants
without having a negative impact on the climate.
Understanding Urban Informal Economy (with focus on issues of street vendors ...Prabal Dahal
Did you know ?
The Nepal Labour Force Survey (NLFS) - 2017/18 has estimated around 62 percent people to be currently employed in the informal sector
This presentation introduces the concept of informal economy and presents data about informal economy in Nepal. A short reflection on the ways forward has been included from an urban planning perspective.
Counterfactual Planning: What if there had been no Greenbelt in Seoul?Prabal Dahal
This article uses a specific and long-established planning policy, Seoul’s greenbelt, to explore the concept of counterfactual planning. Suppose the greenbelt had never existed
Article by Chang-Hee Christine Bae & Myung-Jin Jun
2003
Geospatial Technology for Urban Planning
Article Review on:
BARCELONA UNDER THE 15 MINUTE CITY LENS:
MAPPING THE ACCESSIBILITY AND PROXIMITY
POTENTIAL BASED ON PEDESTRIAN TRAVEL TIMES
CARLES
FERRER ORTIZ, ORIOL MARQUET , LAIA MOJICA, GUILLEM VICH
PUBLISHED ON
SMART CITIES JOURNAL
This presentation explores the paper by CY Jim on sustainable urban greening strategies for compact cities in developing and developed countries and briefly reflects on the same for the context of Nepal.
PLANNING AND DESIGN OF ECOLOGICAL NETWORKS IN URBAN AREAS.pptxPrabal Dahal
Presentation on planning and design of ecological networks in urban areas (paper by Maria Ignatieva, Glenn H. Stewart and Colin Meurk; published on Landscape and Ecological Engineering Jan 2011)
Review of “Coping with Uncertainty in Planning” Karen S. Christensen (1985).pptxPrabal Dahal
This presentation unfolds the contents of "Coping with Uncertainty in Planning" by Karen Christensen. There is also a brief reflection on the paper.
Firstly, the author establishes that planning processes can be understood not as predetermined but, instead, as tools whose use must vary depending on circumstances
Secondly, the author describes variable planning problem conditions by setting out a matrix
Then, the author writes on contingent planning processes
Lastly, the author describes the implications of the matrix in the United States
Nature and Psychological Comfort: Biophilic ArchitecturePrabal Dahal
Bachelors' Level Directed Studies Research Presentation on how nature can bring about comfort to human beings done as a part of semester report for partial fulfillment of requirements of Bachelors of Architecture Degree at Kathmandu Engineering College, Tribhuvan University.
Presentation on Architect. Charles Correa by the third year first part students of Department of Architecture of Kathmandu Engineering College, Kalimati, Kathmandu, Nepal.
Contemporary Architecture class.
Course Tutor: Lec. Ar. Sweta Shrestha
Presented by Students of Bachelors of Architecture at Kathmandu Engineering College in Design Theory II class. Course Lecturer: Asso. Prof. Chand S Rana
This presentation explores the life, philosophy, and works of Architect Kenzo Tange.
Normative theory for Architecture students.
Presented in Design Theory I class by students of Bachelors of Architecture at Kathmandu Engineering College, 2070 batch. Course Lecturer: Ass. Prof. Chand S Rana
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
1. Presentation on Sun Shading
Devices
Presenters:
Binisha Gurung
Nishu Shrestha
Prabal Dahal
Rojina Nakarmi
Suchitra Bhatta
2. Introduction
Sun Shading Devices are any
mechanical equipment or textiles that
are used either internally or externally
or in between the internal and the
external building space.
The primary objective of creating a
comfortable internal environment, that
is, cool in the summer and warm in the
winter.
3. Need of Sun Shading Devices
To reduce the heat gains during summer,
reduce the cooling loads and therefore
minimize energy costs.
Sun Shading Devices improve internal
environment in order to provide greater
comfort for occupants.
Likewise, internal sun shading devices
like curtains help to beautify internal
space and create a sense of privacy.
Therefore, it is highly essential for the
architects and engineers to incorporate
these shading techniques.
4. Types of Sun Shading
Devices
On the basis of their position in a
building:-
Internal
External
Interpane
5. Internal Sun Shading Devices
Limit the glare resulting from solar
radiation.
Usually are adjustable and allow
occupants to regulate the amount of
direct light entering their space.
Most commonly these shading
devices take the form of horizontal or
vertical blinds attached above
windows.
Internal shading devices should be
made or designed to be durable.
6. Curtains: It is the most commonly used shading
device, mostly used on residential buildings. It is
cheaper in comparison and can be found in various
varieties, colours and texture. A curtain also acts as a
decorative item.
7. Venetian blind: Venetian blinds are basic slatted
blinds made of metal or plastic, wood or bamboo can
also be used. Suspended by a strip of cloth called
tapes, all slats in unison can be rotated through nearly
180 degrees. Slat width can be between 16 and
120 mm, with 25 mm being a common width
8. Vertical Louvre blinds: Suitable for many
applications in commercial and public buildings where
the control of heat, light and glare are of concern. It
can be used in larger windows and doors too.
9. Roller blinds: Roller blinds are usually stiffened
polyester, mounted on a metal pole and operated with
a side chain or spring mechanism. Roller Blinds are a
practical blind for everyday use, Block Outs, Sun
Screens and Translucent with a metal or plastic chain
available, that operates the blind through an
aluminum tube to roll up and down.
10. Pleated Blinds: Pleated blinds are shades made
from a pleated fabric (which helps to add texture to a
room) that pull up to sit flat at the top of a window to
hide from sight when open.
11. Blackout binds: Blackout blinds stop light from
passing through thanks to special treatments and
extra tight woven fabrics to help control the light levels
in a room. It is designed to block the external lights to
enter the room.
12. External Sun Shading
Devices
Considered better than internal
Horizontal, Vertical or inclined
projections
Vegetation and other buildings
13. Horizontal Devices: to shade a window during
hot summer months, but to allow sunlight to shine
through a window in the winter, to help warm a
building.
14. Vertical Devices: Primarily useful for east and
west exposures to improve the insulation value of
glass in winter months by acting as a windbreak.
Slanted Vertical Fin Vertical Fins
15. The egg-crate: A combination of vertical and
horizontal shading elements commonly used in hot
climate regions because of their high shading
efficiencies. The horizontal elements control ground
glare from reflected solar rays. The device works well
on walls
17. Designing a Shading Device
Select Shading Type
Identify Design Dimensions
Identify Category
18. Select Shading Type
Orientation Suggested Shading Type
North fixed or adjustable shading placed horizontally above window
East and West adjustable vertical screens outside window
NE and NW adjustable shading
SE and SW planting
Climatic zones Requirements
Hot and dry Complete one year round shading
Warm and humid Complete year round shading , but design should be made such that ventilation is not
affected
Temperature Complete year round shading but only during major sunshine hours
Cold and cloudy No shading
Cold and sunny Shading during summer months only
Composite Shading during summer months only
20. Our device should be such that:
i. It reduces glare.
ii. It reduces cooling load.
iii. It allows us to see the view that we
like to watch.
iv. For doing presentations, complete
shut off of lights is possible.
v. There is limited reduction daylight.
21. Identify Design Dimension
Shading type: Horizontal Overhang
Shading category: fixed
Design dimensions: Relationship between the overhang
Depth (L) and the opening height (H).
L=H L=3H/4 L=H/2 L=H/3 L=H/4
Shading type: Vertical Overhang
Shading category: fixed
Design Dimensions: Relationship between the overhang
Depth (L) and the opening width (d).
L=d L=3d/4 L=d/2
25. Importance and Advantages of
Sun Shading Devices
Maintain a comfortable indoor temperature.
Shading is a simple method to block the sun before it
can get into the building.
Shading minimizes the incident solar radiation and cool
the building effectively and hence dramatically affect
building energy performance.
Reduce building peak heat gain and cooling
requirements and improve the natural lighting quality of
building interiors.
Peak electricity demand is also reduced by exterior
shading devices, resulting in lower peak demand
charges from utilities and reduced mechanical
equipment costs.
Likewise, trees when used as shading devices can
beautify landscape and provide oxygen. Internal
Shading devices also help to create a sense of privacy.
26. Disadvantages of Sun Shading
Devices
Difficulties can be experienced in handling the internal
shading devices like curtains and blinds.
In the use of shading devices like light shelves,
problems with low angle winter sunlight penetration can
give rise to glare.
If the building is highly stylized (e.g. Neoclassical or
glass cube), it may be impossible to reconcile external
shading with the original style. Shading always blocks a
part of the view. As a minimum, it blocks the portion of
the sky where the sun travels.
Some shading methods are extremely specific to
compass orientation (azimuth). For example, fixed
horizontal shading may leak sunlight into the building
during the morning or afternoon unless it is used on a
face that is oriented almost exactly due south.
27. National Case Studies
Trees used as Sun Shading Device for the East
face of a commercial building in Durbarmarg.
We can also see Vertical Blinds used in the internal
space.
28. In the same building, on the top, a restaurant is using a space
created by interesting sun shading devices.
29. In Lainchaur, Malla Hotel, Horizontal sun shading device is used
in the north facade of the building. The windows are also having
panes that reduce glare in the internal environment.
30. In Jyoti Bhawan, Kantipath, Jamal, vertical external sun shading
devices have been used on the East Facade.
31. On the way to Jyatha from
Jamal, a hotel is using
eggcrate device on the
western facade.
32. On the Eastern facade (receiving maximum amount of Sunlight
throughout the day) of Suraj Arcade, Kathmandu Durbar Square area,
Vertical Sun shading devices have been used.
33. Horizontal in North Face (receiving les
sunlight) of a commercial building in
Makhan Tole.
Eggcrate type device in Jamal. East facade.
34. Formal National Case Study I
Name of the building: Janak Nath Memorial
School, previously Kanya School.
Location: Lainchour
Date Established: 2043 B.S.
Type of Building: Public School
Use: Students, teachers, staffs and
administrative people use this building
generally from 10 am to 4 pm on weekdays.
Type of Shading Device: External Shading
Device
Type of External: Egg Crate
Position of Device: East Facade
35. Effectiveness: The Eggcrate system has been used
not only around the window openings, but also on
walls. The shading device has therefore been
converted into design element as well. The length of
projections are 1 feet and have provided very good
shade. Therefore, this can be considered good use of
shading device.
36. The internal view of a
classroom in third floor.
Students feel comfortable
both in summer and
winter as per the
information provided by a
staff member of the
school
Windows themselves
have been placed at a
height likely to prevent
students from outside
distractions. Eggcrate
patterns visible on the
interior space as well.
37. Formal National Case Study II
Name of the building: Kathmandu Durbar
Square Cafe, previously shops and
storage.
Location: Basantapur
Type of Building: Public
Use: Staffs and customers use the place
throughout the whole day 7 am to 9 pm.
Type of Shading Device: External
Shading Device and Internal Shading
Device
Type of External: Eggcrate
Type of Internal: Stickers
Position of Device: South Facade
38. Effectiveness: On the ground floor, there are glass panes
windows where stickers have been used. Stickers are serving
the purpose of preventing excessive glare from entering the
internal space as well as giving a sense of privacy. On the first
floor, external eggcrate shades have been used. The windows
are small probably because the building was built when
traditional Newari building style was popular in the area. Addition
of shades seems useless. However, the first floor, if used for
storage could have required shades.
39. Internal shades, stickers used behind the
cash counter. Serving both as shading and
privacy creating device.
40. Space of the first floor. Little or no
use of sun shading device in today's
context
41. Secondary National Case
Study
Name of the building: Mahendra Bhawan
School Administrative block when used by
Kathmandu Academy
Type of Building: Educational Institution
Use: Students, teachers, staffs and
administrative people use this building
generally from 7 am to 4 pm on weekdays.
Type of Shading Device: Internal
Type of Internal: Pleated Blinds
Position of Device: Eastern Windows of 1st
floor, Southern Windows of ground and 1st
floor, Northern Window of Ground floor.
44. Preventing glare and creating a sense of
privacy in the north window of computer
room
45. Blinds on the first floor in a winter morning. In summer, the
desks nearby the windows are generally left vacant due to
heat.
46. International Case Studies
Formal International Case Study I:
Name of the Building: National Library,
Singapore
Location: Victoria Street, Singapore
Date: 2004
Associated Names: Kenneth Yeang
(architect/planner), T.R. Hamzah &
Yeang (architect/planner)
Building Types: educational
Building Usage: library
47. Hot humid climate
Widest shading device (1.8m)
Made of light metallic material similar to wings
of aircraft
Oriented away from east-west solar exposure
(to cut down solar penetration)
Sunshading devices on the west side
Blinds used at building façade
(Adjusts automatically through day light
sensors depending on the light intensity)
Motion sensors and energy efficient lighting
are used throughout the building
Façade has double-glazed, high quality, low-
emissivity glass to reduce head transfer
48.
49.
50. Formal International Case
Study II:
Name of the Building: SUR YAPI
OFFICES
Location: Istanbul, Turkey
Date: July, 2010
Associate names: Gökhan Aktan
Altug,TAGO Architects
Building type: Official
Use: Sur Building Construction
Industry. TIC. LTD. STI.
51.
52. The building is oriented to maximize the
generous south light, while dramatic,
faceted louvers act as a solar shading
device.
The louvers become part of the dynamic
skin of the building.
54. Secondary International Case
Study
Name of Building: Ebril Metro Station
Location: Ebril, Iraq
Date: Under construction
Associated names: Mohammed
Siyamand
Building Type: Metro station
Building Usage: Metro station
Shading type: Dynamic
55.
56. Recommendations:
When deciding which devices to use and where
to use them, the designer must consider a whole
range of issues, whether they will be opened and
closed daily as needed or just put up for the
hottest season, whether they will adversely affect
natural lighting level or even produce more glare,
and how they might affect any natural ventilation
strategy.
On average, external products are twice as good
as internal products in reducing peak cooling
loads
In selecting shading products, one should also
pay attention to the transmitted daylight and the
effect on the view out.
57. Conclusion
The team found out that there are various
types of shading devices used in Nepal and
in international buildings. Importantly, the
team members realized that projections
around the windows in buildings are not just
design elements but also serve the purpose
of shading devices. Comparatively, the
national devices were less good looking and
effective than the international. This, the team
conjectures to be a result of poor design
ideas and techniques in the national
buildings. The team realizes that the
importance of proper designing of sun
shading devices and therefore willing to
incorporate the devices in their design works.
58. Hübe, Helena Bülow. "ESTIMATION OF THE PERFORMANCE OF SUNSHADES
USING OUTDOOR MEASUREMENTS AND THE SOFTWARE TOOL PARASOL V
2.0." Lund University. Web. 28 Nov. 2014.
<http://lup.lub.lu.se/luur/download?func=downloadFile&recordOId=699802
&fileOId=711430>.
Bahr, Wassim. 1 Dec. 2009. Web. 28 Nov. 2014. <http://www.sesam-
uae.com/greenbuilding/presantation/5. Wassim Bahr, AUD.pdf>.
Mohammad Arif, Kamal. "A S Tudy on S Hading of B Uildings as a P Reventive
M Easure for P Assive C Ooling and E Nergy C Onservation in B Uildings."
International Journal of Civil & Environmental Engineering, 1 Dec. 2010. Web.
28 Nov. 2014. <http://www.ijens.org/102406-5252 IJCEE-IJENS.pdf>.
Web. 3 Dec. 2014. <http://www.bembook.ipsa.us>.
Web. 3 Dec. 2014. <http://www.usc.edu>.
Web. 3 Dec. 2014. <http://www.earchitect.co.uk>.
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