Energy Optimisation in Office Buildings Through Daylighting Design for Climatic Conditions of Central India

This paper is based on the premise that energy optimisation is possible in ofﬁce buildings through design of daylighting. The motivation for the study was born of the fact that in India, among all building typologies, commercial buildings consume the maximum energy. This energy consumption is mainly for cooling of the building and lighting the interior spaces. Cooling and lighting up spaces generates heat in and around the building, which again increases the cooling load. Out of the total electrical energy required in the building, around 20-40% is used for lighting purposes. Despite availability of daylight during the working hours, artiﬁcial lighting is used in ofﬁces that have huge internal spaces with large spans. This paper aims at understanding the factors related to daylight penetration into ofﬁce building in different situations and developing guidelines for achieving maximum daylight penetration in large spaces.

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Thermal extras of vegetation walls in Belgrade climatic conditions

Thermal Science ◽

10.2298/tsci170919027s ◽

2018 ◽

Vol 22 (Suppl. 3) ◽

pp. 945-955 ◽

Cited By ~ 1

Author(s):

Budimir Sudimac ◽

Aleksandar Andjelkovic ◽

Sanja Dubljevic

Keyword(s):

Energy Balance ◽

Thermal Characteristics ◽

Climatic Conditions ◽

Office Buildings ◽

Sustainable Technologies ◽

Summer Time ◽

Outer Environment

The goal of this research is to analyse the possibility of using vegetation walls in order to improve the thermal characteristics of office buildings in Belgrade?s climatic conditions. The study analyses the possibility of integrating vegetation modules into the fa?ades of office buildings. The paper shows the potential of vegetation technologies in the realisation of fa?ade coverings of architectural buildings with a goal to reduce heat gained during summer time. The use of vegetation walls in architecture has opened up new planning possibilities and created planning conditions for reducing the energy necessary for cooling office buildings. Considering that interaction between the outer environment and inner solving the dependency between comfort, outer look and building?s energy balance. This paper is presenting the possibility of using sustainable technologies for solving the problem of overheating in Belgrade?s climatic conditions. The research considers the possibilities of using vertically greening systems in planning fa?ade coverings, with an analysis of their thermal characteristics for climatic conditions in Belgrade.

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The Impact of Aspect Ratio on External Heat Gain of Multi-storey Office Buildings in Jakarta

Review of Urbanism and Architectural Studies ◽

10.21776/ub.ruas.2018.016.01.2 ◽

2018 ◽

Vol 16 (1) ◽

pp. 24-31

Author(s):

Wasiska Iyati ◽

◽

Eryani Nurma Yulita ◽

Jusuf Thojib ◽

Heru Sufianto ◽

...

Keyword(s):

Aspect Ratio ◽

Building Design ◽

Climatic Conditions ◽

Building Envelope ◽

External Heat ◽

Office Buildings ◽

Office Building ◽

Cooling Load ◽

Heat Gain ◽

The Impact

The narrow land in big cities such as Jakarta, increases the amount of high rise building, especially multi-storey office building. Office building consumes much energy to provide air conditioning to meet the thermal comfort inside the building. On the other hand, the building shape, building envelope, and building orientation to the sun's position are the main factors in building design aspects that affect the amount of cooling load. This study aims to investigate the impact of the aspect ratio or the ratio of the longer dimension of an oblong plan to the shorter, on external heat gain of multi-storey office building. Variables examined include the transparent and solid area of building envelope, the total area of the surface of the building envelope in any orientation, and the volume of the building, as well as the influence of those proportion on the external heat gain. This study uses mathematical calculations to predict the cooling load of the building, particularly external heat gain through the walls, roof and glass, as well as comparative analysis of models studied. The study also aims to generate the design criteria of building form and proportion of multi-storey office buildings envelope with lower external heat gain. In Jakarta climatic conditions, the result on rectangular building plan with aspect ratio of 1 to 4 shows that the external heat gain did not differ significantly, and the smallest heat gain is found on the aspect ratio of 1.8. Results also showed that the greater aspect ratio, the greater reduction of external heat gain obtained by changing the orientation of the longest side facing east-west into the north-south, about 2.79% up to 42.14% on the aspect ratio of 1.1 to 4. In addition, it is known that in same building volume, changing the number of floors from 10 to 50 can improve the external heat gain almost twice.

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Some Medicinal Plants among the Tribes of Chhatarpur District (M.P.) India

Ecoprint An International Journal of Ecology ◽

10.3126/eco.v16i0.3472 ◽

1970 ◽

Vol 16 ◽

pp. 43-50 ◽

Cited By ~ 6

Author(s):

Amita Arjariya ◽

Kalpana Chaurasia

Keyword(s):

Medicinal Plants ◽

Health System ◽

Key Words ◽

Raw Materials ◽

Central India ◽

Climatic Conditions ◽

Great Promise ◽

Natural Growth ◽

Growth Of A Variety ◽

Herb Species

The Chhatarpur District in central India is home to numerous herb species. The agro-climatic conditions prevailing in the region provide an ideal habitat for the natural growth of a variety of plants and herbs, which provide raw materials for pharmaceutical, phytochemical, food, flavoring and cosmetic industries. The paper provides information on 58 medicinal plants used by the Gond, Bhil and Bediya tribes of Chhatarpur district of Madhya Pradesh, India, for the treatment of various diseases. Traditional medicine remains an integral part of the health system in this area. Medicinal plants of forest origin hold great promise to enhance the health and livelihoods of the forest dwellers. Key words: Ethno medicinal, tribes, medicinal plants, traditional uses, diseases. DOI: 10.3126/eco.v16i0.3472ECOPRINT 16: 43-50, 2009

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Effect of Smart Glazing Window on Energy Consumption inside Office Building

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1008.72 ◽

2020 ◽

Vol 1008 ◽

pp. 72-83

Author(s):

Asmaa Mohammed Nageib ◽

Abbas Mohamed El-Zafarany ◽

Fatma Osman Mohamed ◽

Mohamed Helmy El-Hefnawy

Keyword(s):

Energy Efficiency ◽

Energy Consumption ◽

Solar Radiation ◽

Climatic Conditions ◽

Office Buildings ◽

Smart Windows ◽

Upper Egypt ◽

Natural Lighting ◽

North East ◽

Office Rooms

The office buildings in Egypt, especially in Upper Egypt, reflect serious problems in achieving for energy efficiency as a result of increasing the use of mechanical refrigeration devices in office rooms, due to solar radiation and rising summer temperatures in recent years. Smart windows can play an important role in reducing significantly the energy consumption and maintaining energy inside buildings, also helps to control incoming solar radiation in order to minimize solar gain, especially in summer as well as ensuring the best natural lighting conditions without glare inside a room. This paper aims to evaluate the most efficient daylight and thermal performance of various types of the smart glazing and its impact on the energy consumption in the climatic conditions of one of the office buildings (Diwan governorate) in Sohag governorate as one of Upper Egypt governorates, with determining the best smart glass types for efficient use of energy. The paper follows the theoretical, applied, by studying types of smart glazing and their relation to achieving the energy efficiency. Then using (Energy Plus) simulation tool, which has been used in utilizing its modeling orientation (Design Builder) to study using types of smart glazing on the model of an office room in Building of Diwan governorate of Sohag in the four different orientations (North, East, South and West), when window-to-floor ratios (WFRs) (8%, 16%, 24% and 32%). The paper ends with a presentation of the most important results, recommendations and determination the best types of smart glass that provides energy, daylight without glare and providing greater comfort to users.

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Framework for Evaluating Financial Impacts of Technical Risks Related to Energy-Efficient Renovation of Commercial Office Buildings

Environmental Sciences Proceedings ◽

10.3390/environsciproc2021011032 ◽

2021 ◽

Vol 11 (1) ◽

pp. 32

Author(s):

Annalisa Andaloro ◽

Graziano Salvalai ◽

Gabriele Fregonese ◽

Linda Tso ◽

Giulia Paoletti

Keyword(s):

Energy Efficiency ◽

Energy Efficient ◽

Evaluation Method ◽

Climatic Conditions ◽

Office Buildings ◽

Mitigation Measures ◽

Building Energy Efficiency ◽

Existing Building ◽

Technical Risks ◽

Financial Impacts

Energy efficiency in the building sector is a priority of the EU Commission to achieve carbon neutrality by 2050. Renovation of the existing buildings, which are currently responsible for approximately 40% of EU energy consumption and 36% of the greenhouse gas emissions can lead to significant energy savings. This paper presents the EEnvest calculation method for evaluating the financial impacts of technical risks related to energy-efficient renovation of commercial office buildings. The evaluation method aims to increase investors’ confidence and boost investments in the renovation of the existing building. Through a series of Key Performance Indicators (KPI), the technical and financial risks impact is evaluated. The results are strictly connected to building features, climatic conditions, solution sets and mitigation measures specific to the building energy efficiency project.

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AN ITERATIVE ASSESSMENT CONCEPT FOR BUILDING DESIGN BASED ON THE ECO‐FACTOR

Journal of Civil Engineering and Management ◽

10.3846/13923730.2006.9636372 ◽

2006 ◽

Vol 12 (1) ◽

pp. 51-56

Author(s):

Henrik Brohus ◽

Erik Bjørn

Keyword(s):

Energy Use ◽

Building Design ◽

Energy System ◽

Design Guidelines ◽

Office Buildings ◽

Indoor Climate ◽

Energy Efficient Buildings ◽

Energy Optimisation ◽

And Control ◽

Indoor Comfort

Problems in office buildings are often related to the design and control of the indoor environment and of the building as an energy system. The often interconnected nature of the above two issues is important to take into account, since, for instance, internal and external heat loads, temperatures, and air change rates affect both energy use and indoor comfort. Thus, to avoid the indoor climate problems, it is essential that energy optimisation is integrated with assessment of indoor climate. An assessment concept based on the so‐called Eco‐factor has been developed; it can assist building designers in creating solutions of these problems. The assessment concept is meant to be an integral part of new design guidelines for office buildings, which aim to achieve energy efficient buildings with a good indoor comfort and low environmental impact. The building designers have different needs at different stages of the design process. For this reason, the assessment concept makes use of the Eco‐factor tool, which is defined so input can be based on both simple and advanced calculations in early and later phases of design, respectively, while still delivering the same output.

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Opaque Ventilated Façade (OVF) Thermal Performance Simulation for Office Buildings in Brazil

Sustainability ◽

10.3390/su12187635 ◽

2020 ◽

Vol 12 (18) ◽

pp. 7635

Author(s):

Camila Gregório-Atem ◽

Carolina Aparicio-Fernández ◽

Helena Coch ◽

José-Luis Vivancos

Keyword(s):

Mineral Wool ◽

Climatic Conditions ◽

Office Buildings ◽

Aluminium Composite ◽

Specific Design ◽

Performance Simulation ◽

Climate Conditions ◽

Hot Climate ◽

Occupant Comfort ◽

Ventilated Facade

Opaque ventilated façades (OVFs) are increasingly gaining in importance in the design of sustainable buildings, given that they can lessen the building´s environmental impact. Opaque ventilated façades can reduce thermal gains in hot climate zones, improving the thermal comfort indoors, and reducing air conditioning demand. Nevertheless, the thermal behaviour of the opaque ventilated façade depends on the climatic conditions and the building´s specific design. This study analyses the effect of opaque ventilated façades in office buildings using 30 constructive configurations under eight tropical climate conditions. The study considers three options for the external layer of cladding (ceramic, stone, and aluminium composite material) and two configurations for the inner layer (plasterboard with mineral wool and ceramic). Simulations were carried out using the software tools TRanNsient SYstem Simulation program (TRNSYS) and TRNFlow. The model developed considers bioclimatic characteristics, including solar radiation and wind conditions for each climatic zone. The operating temperature was selected from within the range established by occupant comfort regulations. The findings suggest that it is possible to select the best office building opaque ventilated façade configuration for each of the specific climate conditions in Brazil.

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Status and evaluation of soybean varieties against Mungbean Yellow Mosaic (MYMV) disease under changing climatic conditions of Kaymore plateau zone, Madhya Pradesh, India

Indian Journal of Agricultural Research ◽

10.18805/ijare.a-5041 ◽

2018 ◽

Author(s):

Kunika Silodia ◽

Usha Bhale ◽

MS Bhale

Keyword(s):

Relative Humidity ◽

Virus Disease ◽

Evaluation Studies ◽

Central India ◽

Climatic Conditions ◽

Yellow Mosaic Virus ◽

Average Temperature ◽

Mungbean Yellow Mosaic Virus ◽

Average Relative Humidity ◽

First Time

For the first time in central India, an epidemic of Mungbean Yellow Mosaic Virus disease transmitted through white flies in soybean at R1-R3 stage was noticed as scattered yellow specks were noticed on upper leaves of soybean variety JS 335 during first week of August 2015 at Research Experimental Fields, JNKVV, Jabalpur. During 31st week (July, 2015), the rainfall (149.40mm, average temperature 26.70C, and average relative humidity 80%, rainfall of 149.0mm) enhanced dramatically the population of whiteflies (from 2-25 flies/leaf) that resulted in the epidemic. At farmer’s field covering 8 villages; the overall incidence was in the range of 53-70%. In seed production units, incidence was in the range of 63.0-70.0% in JS 335, JS 95-60, JS 93-05 and JS 90-41. During first week of August to Ist week of September, the average temperature was 27.77 0 C and relative humidity was 76.5%. Evaluation studies of 28 varieties, under Seed multiplication chain, indicate that most of the varieties exhibited the infection of MYMV (in the range of 40-70%), however, PS 1225 did not exhibit any infection among the same set of environment. Jawahar Soybean (JS 20-69) exhibited infection up to 5% only. Other variety of soybean JS 20-34 exhibited infection upto 40%.

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Fossil fruit of Cocos L. (Arecaceae) from Maastrichtian-Danian sediments of central India and its phytogeographical significance

Acta Palaeobotanica ◽

10.2478/acpa-2014-0003 ◽

2014 ◽

Vol 54 (1) ◽

pp. 67-75 ◽

Cited By ~ 10

Author(s):

Rashmi Srivastava ◽

Gaurav Srivastava

Keyword(s):

Western Ghats ◽

Marine Algae ◽

Central India ◽

Climatic Conditions ◽

Deciduous Forests ◽

Palm Fruit ◽

Evergreen Forests ◽

Reserve Forest ◽

Fossil Fruit ◽

The Western Ghats

ABSTRACT A fossilised palm fruit of Cocos L. (C. binoriensis sp. nov.) is reported from the Binori Reserve Forest, Ghansor, Seoni District, Madhya Pradesh, India. The fruit is a 3-dimensionally preserved drupe, ovoid with clearly visible longitudinal ridges. The husk is made up of a thin smooth exocarp and fibrous mesocarp, with vertical and horizontal fibres present on the inner surface of the endocarp. The fruit is Maastrichtian-Danian in age and is the world’s oldest fossil record of Cocos. The genus Cocos is now distributed in coastal areas of pantropical regions. The occurrence of Cocos along with coastal and mangrove remains such as Acrostichum, Barringtonia, Nypa, Sonneratia and marine algae Distichoplax and Peyssonellia previously recorded from Deccan Intertrappean beds further confirms the proximity of sea in the area in central India and indicates warm and humid conditions. The presence of Cocos and previously recorded palaeoflora supports the existence of tropical wet evergreen to semi-evergreen forests at the time of deposition in the area, in contrast to the dry to moist deciduous forests existing today in central India. The probable reasons for the change in climatic conditions are withdrawal of an arm of the sea from central India, the change in latitude, and a significant uplift of the Western Ghats during post-trappean times.

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