Sustainability in Large Office Building, Hospital, Industrial Complex etc…
Environmentally Sustainable Design (ESD) is the key concept for sustainability. Taking sustainability approaches in large complex environment we can create a new world life that is naturally balanced with given natural resources, such as water and energy and other environmentally significant material, reduce climate impact of use of these resources and provide an economically sustainable future operation.
Solar E.Technology can offer design and consulting services to achieve sustainability goal of commercial complex. Few key concepts are outlined for consideration in the design of the complex.
Sustainability focus areas are:
# Minimize use of fossil fuel source of energy which comes in the form of electricity, gas supply or other, in the ways of
> Minimizing the first demand
> Maximizing energy efficiency
> Energy and water recovery and recycling
> Maximizing use and production of renewable energy.
# Minimize material and chemicals that are environmentally sensitive and have high energy, global warming and ozone depleting potential.
# Management and maintenance of systems and components to its best operating performance
In minimizing the first demand the design should include:
# High star rating buildings features
# Minimize artificial air conditioning including heating and cooling
# Use of natural cooling processes such as evaporative cooling, natural ventilation and green vegetation
# Use of natural lighting where possible but with heat filtration
# Maximize thermal insulation where appropriate, including synthetic materials and natural insulating barriers such as double glazing and shading. Green roofing where possible can reduce significant cooling load in buildings.
# The use of phase change thermal storage to transfer cooling and heating load to a uniform level.
# Minimize use of direct electric heating
# Optimize the heating and cooling set points for building envelope and hot water supply.
# Minimize water flow at the ablution, showers and basin taps. Bypass mixture of hot and cold water in warmer weather where possible
# Maximizing “containing” the heating or cooling load example – automatic door closer in conditioned space.
In maximising energy and water efficiency the design should secure:
# Energy efficient equipment for all areas
# LED lighting
# Lighting control with automated features
# Use of fans with energy efficient motors for air circulation. Similarly for water circulation.
# Use of ceiling fans for indoor air movement to increase “effective comfort” level and use less artificial air cooling.
# Distributed cooling and heating systems with multi-temperature zoning
# Use of naturally ventilation plant room
# Use of evaporative cooling to condensers for compression type refrigeration and air conditioning equipment using recycled water
# High star rated water heating system with maximum use of economiser, use of absorption heat pump technology where possible or at least electric heat pump or solar water heating.
# Choose medical equipment those are energy efficient
# Collecting rain water and use for garden or even production of potable water
In maximising energy recovery and recycling the design can target:
# Heat recovery from air conditioning devices for water heating as pre-heater
# Use of air-exchange heat exchanger in 100% outdoor ventilation circuit
# Use of desiccant humidity exchange to control humidity instead of refrigerated de-humidification
# Use of indoor air-filters and recycling with air exchange for kitchen areas
# Use of water heat exchanger between cold intake and hot waste.
# Recycling waste water in appropriate use after filtration and processing
In maximising use and production of renewable energy such as solar and wind design can include:
# Use of solar heating and cooling
# Use of solar electric LED lighting for streets, car parks and gardens especially in the Holistic health course area(for hospital
or medical complex). This will create an environment of being sustainable to treating patients.
# Production of solar electricity using photovoltaic panels on most of the roofs
# At the outskirt of the complex wind turbines can be fitted for energy production subject to site wind study
# A bio-gas plant using human and kitchen waste can produce gas that can augment water heating process or can be used to produce electricity by method of fuel cell.
# Electricity from renewable energy sources can be exported to the national grid earning revenue for the building complex.
Choosing sustainability solutions may appear to be capital intensive, but It has been proven that with the rising cost of utility services, the economic benefit in longer term is far better which will also contribute towards an sustainable economic example for the nation.