could reduce electricity bills
The use of heat
resistant methods in building homes and factories could have the
dual benefits of reducing electricity consumption and electricity
bills, and ease the national power crisis, said Dr M.T.R. Jayasinghe,
Associate Professor, Department of Civil Engineering, University
for roofs should be of high reflectivity, low conductivity and very
low density, he said at a presentation on 'Thermally comfortable
passive houses and buildings' organized by McBolon Polymer (Pvt)
colours are used you could cut down a lot of heat. If the material
used is reflective, 95 percent of the heat is reflected back and
only five percent absorbed," he said. Windows facing west should
Since the roof
is exposed to direct solar radiation most of the day, heat could
be minimized with insulating material and also by reducing the roof
area by constructing multi-storey buildings, he said.
said that nature also played a very dominant role in reducing heat.
If trees were around the building much of the heat inside would
In homes energy
is used for lighting, thermal comfort and entertainment. A building
can be designed considering the climatic conditions so that thermal
comfort could be provided mostly with natural means.
would not save energy used in lighting and entertainment, in the
case of thermal comfort, if properly handled, a considerable amount
of energy could be saved.
use of fans for thermal comfort as an example, Dr. Jayasinghe said
if two ceiling fans were used for 10 hours (80 watts) they would
consume 50 units of electricity. With the cost per unit for consumption
between 90 to 180 units calculated at Rs. 12, this works out to
Rs. 600 a month or Rs. 7,200 per year.
said that thermally comfortable passive houses and buildings would
be those houses with passive elements that could maintained indoor
temperature about 28C to 30C.
The use of
shade trees would reduce the entry of diffused radiation, minimize
the ground reflected radiation and drive the cooler air to the ground
Product Manager, McBolon said that thermal comfort was now a widely
accepted norm in building design and construction.
He said that
the traditional thermal insulation, such as glass wool, was greatly
dependent on efficiencies in conductivity, but cumbersome to install
and a source of harmful contamination in the atmosphere if allowed
insulation, on the other hand, combined a reflective foil surface
with a closed cell foam heat barrier that provided an excellent
thermo-reflective medium, he added. (QP)
software consultants win awards from Mercator
from John Keells Computer Services (JKCS) based in Dubai won five
awards for outstanding performance in the design and development
of software for Emirates Airlines.
The award winning
projects were Future Focus the strategic marketing and planning
tool for Emirates Commercial Division, Web Content Management, Health
Check the utility module written for the Customer Relationship Information
System (CRIS), and In-house Workflow systems. JKCS' consultants
were part of the Java development team that carried away the award
for the most innovative solution for the design and development
of the Comstar system that facilitates communication tracking, verification
and recharging of costs to respective cost centres.
epitomise the quality of service offered by JKCS and substantiate
JKCS' current position as the largest supplier of software services
to Mercator, the IT arm of the Middle Eastern airline giant Emirates
specialised software and IT services for both Emirates and other
international carriers, a company statement said.
recognising significant contributions made by individuals and teams
in the provision of software services for both internal systems
and Mercator's customers, were presented to them at the Mercator
Software Services Awards held in Dubai.
JKCS has been
associated with Mercator since 1998 when it was awarded a contract
to set up the Mercator Extended Development Centre (MEDC) in its
facility in Sri Lanka.
offshore development centre provides software development, implementation,
support services and on-site managed resources to Mercator and its
there are over 90 JKCS consultants based at MEDC engaged in onsite
and offshore operations.
JKCS is the
software services subsidiary of John Keells Holdings Ltd the largest
and most diversified public quoted company in Sri Lanka.
in 1994 to cater to the software services requirements of demanding
multinational clients, JKCS provides offshore-dedicated development
and support centers for Fortune 500 companies and world leaders
in their respective fields such as Emirates Airlines, Braathens
Airlines - Norway, Nippon Telegraph and Telephone Corporation (NTT)
- Japan, P&O Nedlloyd and Mashreq Bank - UAE.