I have been associated with PCERF right from its initiation. The concept for setting up PCERF was to have an apex organization with an Independent attitude and independent view about the construction industry. We

invited Senior people from sister organization to be the members. All the people work with an intention to “give” and not to “take”, which is our strength. Profit has never been the motive.

Organising Constro inculcates a sense of Teamwork amongst the organizers. Constro has always met its commitment to the exhibitors and tried its best to give maximum facilities to the exhibitors.

Many new products like RMC, Tremix etc. have been launched at Constro.

A sound financial footing and a loyal customer base is the strength of Constro. Constro has been visited by stalwarts like Shri. Pranab Mukherjee, Shri. S. L. Kirloskar and Shri. Sharad Pawar in the past.

Constro exhibitions have been based on novel and innovative themes like the golden quadrilateral Project, use of Bamboo , affordable housing etc. in the past.

The current theme of Pre Engineered Buildings & Innovative Electrical Solutions is apt as automation is the keyword today, quick work, less dependence on labour due to their in availability is the need of the hour.

A permanent venue will go a long way in providing better facilities to the exhibitors.

PCERF has taken press conference all over India and also visited other countries to expand the horizons of Constro and get manufactures from abroad to display their products and technology. We should strive to 

get key decision makers to visit the exhibition.

Younger generation should be involved in the organization and seniors should play the role of mentors.

It would be a good idea to have sister organization plan their seminars concurrently with the Constro exhibition.

Over the period Constro has become a movement and a mission. !!

“I got involved in PCERF at the behest of Late.

Shri. Narayanrao Kanetkar and Ramkumar Rathi. Narayanrao was a thorough contractor and had the ability to build Institutions for the benefit of the fraternity. The synergy between him and Shri. Ramkumar Rathi

with his professional and business acumen led to setting up of PCERF in which I got involved.

“Education thro’ Exhibition” was the motto behind Constro exhibition. Intent was to create competent people with a professional approach. Dissemination of knowledge was the goal. My role was as a

professional and to provide technical support to the organization.

Constro was a pioneering effort and gave a boost not only construction related exhibitions but exhibitions as a concept in general in Pune. Constro is a people oriented exhibition. Constro helped PCERF in bringing

the entire fraternity and become an umbrella organization for the Construction fraternity of Pune brining about many people into its fold . Constro is an event well appreciated by people and by exhibitors who seek

exposure for their new products. The success of PCERF & Constro is due to the whole hearted & selfless participation of all organisers.

It was my idea to take Constro out of Pune to increase exposure of the exhibition. We had a successful exhibition at Pragati Madian, New Delhi. PCERF and Constro got a National level presence and We were

able to build up rapport with a lot of people in Delhi, an association which continues to benefit the organisation.

We have always received excellent support from the authorities.

We need to use latest trends in communication and media to publicise about Constro. Building up a data bank of manufacturers and their products, involving new people will take Constro further. Enthusiastic

new people with fresh ideas should be encouraged in the organization process with the Seniors providing valuable support and words of wisdom.

Marketing is the most important aspect of an exhibition. Various means and ideas have to be thought about to widen the scope of the exhibition and to ensure greater footfalls.

Having a temporary set up is a put off for foreign participants who expect to have a ready set to put up their exhibits. A permanent setup will go a long way in getting more and more participants. This aspect needs to

be pursued with the government. Constro should strive to get visitors beyond Pune & Maharashtra and also get new exhibitors on board .

The changing image of Pune as a business Centre and an economic hub will surely help Constro in the future.”
                                                                                                   

A Note By-

Mr. V. V. Badwe

They're a 21st century super power with super computers and a super economy that's the envy of the world.

Now China can claim another title - the fastest builders on the planet after putting up a 30-storey 183,000-square-foot hotel in just 15 days, or 360 hours.

A construction crew in the south-central Chinese city of Changsha completed this remarkable achievement with no injuries to any worker.

The Ark Hotel was built on Dongting lake, in the Hunan Province, by Broad Group, a Chinese construction company which specialises in sustainable architecture.

It was built to withstand a magnitude 9 earthquake, as tested by the China Academy of Building Research, who claim this is five times more quake-resistant than conventional buildings.

All the materials were prefabricated and sections built to specification off-site, so there was very little wastage.

The builders took just 46 hours to finish the main structural components and another 90 hours to finish the building enclosure.

All of the structure is soundproofed and thermal-insulated. They even have air quality monitoring in every room given the pollution problem in China.

With the word GREEN - Environmental friendly living - hot topic today, many people wonder how they can play their part in this massive movement. One of the easiest ways to cut down energy drastically is by paying attention to Light Bill. Artificial lights on an average accounts for up to 20% of annual energy usage ! When we are able to cut down that amount, it can definitely make a difference to not only wallet but also to the environment. To get a realistic view of the cost of energy, consider that if every household replace old bulbs for energy efficient ones, the amount of greenhouse gases reduced would be equal to the gases emitted from approximately ten million vehicles !

Implementing this change can be as easy as switching from traditional light bulbs to Light Emitting Diodes (LEDs) / Compact Fluorescent Lamps (CFLs), and switching off the lights when they're not in use. Although CFLs / LEDs initially cost more than other bulbs, the savings they incur over time more than makes up for one-time expenditure. Maximizing natural daylight can also make it look larger and brighter, while saving on energy bills. While we don't often feel like these types of small changes really make an environmental difference, consider how much the difference would be increased if everyone tried to conserve energy in a similar manner.

The use of an energy-efficient lighting design not only provides significant lighting savings, but also can reduce the cooling requirements for a building. Engineers should use building energy modeling software to incorporate lighting system design and properly size the HVAC systems.

Building energy modeling software is widely used in the industry for a number of purposes including determining energy savings, HVAC design, or as a compliance path for U.S.Green Building Council LEED Certification. There are hundreds of different building energy modeling applications available, and each has its strengths and weaknesses. While there are many important factors in creating an accurate building energy model (building area, orientation, amount of glass, etc.), internal heat gains from people, lights, and equipment in the space contribute to the majority of the cooling load in many buildings. If engineers can develop more accurate energy models, HVAC systems can be optimally sized, resulting in energy-efficient systems with improved thermal comfort for building occupants and satisfied owners.

According to the study conducted, lighting is typically the largest source of waste heat, also known as heat gain, inside commercial buildings. Approximately 18% of the electricity generated is consumed by lighting loads, with another 5% being used to cool the waste heat generated by the lighting. Because lighting represents the largest portion of a commercial building's electricity consumption, it also presents a great opportunity for energy savings by using energy-efficient lighting systems and lighting controls. This applies to both existing and new buildings.

Interactive effects of lighting on heating and cooling

The type of lighting systems installed can have a large impact on the HVAC requirements. Reducing the energy used for lighting affects the heating and cooling that will be required. As more efficient lighting systems are installed in buildings, cooling loads will be reduced while heating loads can be expected to increase. On a new building designed with efficient lighting systems, the smaller cooling loads, in turn, allow for a building's cooling system to be sized smaller (and therefore less expensive to purchase and operate). On an existing building where lighting systems are upgraded to be more energy-efficient, the smaller cooling loads can allow for the existing cooling systems to serve future additional loads or to be replaced in the future with smaller units.

Most buildings are made up of several systems, including lighting, HVAC, and control systems. In order to design for optimal system performance, all building systems must be considered as a whole. When designing a new building or major renovation, interactions between the lighting and HVAC systems should be considered to ensure that equipment is sized properly for real-world conditions. Similarly, for lighting efficiency upgrades, engineers and owners alike should understand and be able to account for the potential heating and cooling load net impacts that various upgrades would create.

One of the inputs for an HVAC load calculation or building energy model is the lighting input power watts (W) or power density (W/sq ft). Table given below represents an example of how much this input power can be reduced by retrofitting existing inefficient T12 lighting systems in a building with various T8 efficient lighting system options. Using standard T8 systems results in a 26% energy savings compared to the baseline case, while high-performance T8 systems result in a 42% savings. Retrofitting T12 lighting fixtures with high-performance T8 lamps and ballasts, new lenses and mirrored specular reflectors can allow half of the lamps to be removed resulting in a 71% energy savings while still maintaining the same illuminance levels. Also, incorporating occupancy sensing and daylight dimming controls will provide additional energy savings. Note that this table does not account for the additional energy savings that may be realized by decreased cooling loads.

Dr. Prakash Barjatia

Director, MITSkills Center for

Lighting Technology, Pune, India.

Co-ordinator : LED Summit 2013

Governing Body Member, Indian Society of Lighting Engineers (ISLE)

Lead Assessor, NABL (ISO/IEC 17025)

+91-9850630326 / dr.prakash.b@hotmail.com

“Light Scene Interactive” which as it says is an concept where you create different Scenes i.e moods in a space, through light and its interaction with the space and  getting different emotional response from the occupants in the space for each of these moods created.

So the most important aspect of LSI i.e. Light Scene Interactive is the Scenes!

You must have been to drama theater,there if you notice the space i.e the stage is same but through lighting design and set accessories the director creates different locations , takes you to different period in time, different moods like Joy, Calmness, Sad , Mysterious etc which are as per the requirement of the story sequence, here the audience seeing these different moods reacts differently each time .

Similarly in architectural, interior space, Lighting Design helps to create different moods as per the physical and psychological requirement of the occupants at that time and each mood is classified as a Scene .

Now let us also see what Lighting Design is! As it's a crucial aspect in creating the scenes.

Lighting Design is where a plan for the construction of light effects with a PURPOSE to create the right mood and comfort in a given space.

Illumination

makes us see but the emotional impact to be created in the space calls for Lighting Design.

Why create Light Scenes ?

We live in a constantly changing daylight environment around us with the daylight shaping our daily life cycle. This ambience has varying light direction, colour, brightness. Thus this change in daylight is constant and it knowing, unknowingly affects us i.e how we feel about our surrounding and react to it.

Same way when we are under artificial light we are doing different activities and these require different light ambience to enjoy it properly.

Purpose of Light Scenes ?

When you do Lighting Design for a space like say a Living room then there are various activities like dinning, TV viewing, Movie viewing, listening to music, an family get-together, Partying with close ones or just plain relaxation, happening over the period. Thus you see how each of these activities require a different lighting ambience to be created so we as humans connect to the space emotionally through the right mood and make the space lively.

Thus when you have such thoughtfully designed lighting for each of these activities, this each activity based lighting becomes a single Light Scene .Thus now you have as many as scenes as of the no of activities being carried in the space. Thus the human mind is Relaxed, Entertained, Stimulated as per the emotional requirement of the activity; for e.g when there is an children's party the mood should be of vibrancy, joyous as kids just love to dance and play music, similarly when ones listening to classical music the desired mood should be of calmness to enjoy the different notes.

When the designer has created X nos of scenes through lighting and freeze it on paper, how does an individual recall all these through an switchboard and recreate the same precisely as per each activity! Just impossible.

Here comes the aid of technology which is LSI control system.

LSI control system is an logic Integrating system which will freeze luminary channels in combinations for 4,8,12,16 channels and store it in a sequence such as 4, 8 ,12 scenes for a single space and this then is activated by various devices starting from your regular switches, Handheld remote via RF protocol, Regular Keypad, wired LCD KEYPAD, LCD KEYPAD on wireless WIFI network, Android phone.

These unique remote which not only offers an amazing long range from 10 to 25 meters but also it can surpass through the solid obstructions like walls, furniture  and it also does not require pointing direction towards the receiver due to it being operated on Radio Frequency.

Thus the ease of operation and the joy of getting your lighting scenes becomes a moment to cherish!

by-Abhijit S Salunke

Light & Visual Artist

Beuno lighting design