Energy efficiency
is calculated by dividing the work
produced by the energy used within a process. The less
energy consumed to produce the work required, the greater
the energy efficiency
Energy conservation
is an effort to reduce the amount of energy needed to
operate a device or process or even eliminate it
Methods of Increasing Efficiency
Building maintenance,Equipment replacement,Addition of digital control,Energy recovery
digital control
is a branch of control theory that uses digital computers to act as system controllers.
Energy recovery
Energy recovery includes any technique or method of minimizing the input of energy to an overall system by the exchange of energy from one sub-system of the overall system with another.Resource recovery method in which a part of all of the waste material
Sustainable energy
is an energy that has no effect or impact on current or future resources
Renewable energy
is a repeatable source of energy
carbon footprint.
the amount of carbon dioxide and other carbon compounds emitted due to the consumption of fossil fuels by a particular person, group, etc.
bio fuels
Some
fuels used to produce energy are carbon based, such as fossil fuels, wood
ethanol
a type of alcohol
hydrocarbon
an organic compound (as acetylene or butane) containing only carbon and hydrogen and often occurring in petroleum, natural gas, coal, and bitumens a compound of hydrogen and carbon, such as any of those that are the chief components of petroleum and natur
energy management
is a very broad term and
typically used to cover the whole field of energy and its use.
energy consumption
is the consumption of energy or power,Amount of energy consumed in a process or system, or by an organization or society.
energy demand
The requirement for energy as an input to provide products and/or services.
energy manager
An energy manager plans, regulates and monitors energy use in an organization or facility. They aim to improve energy efficiency by evaluating energy use and implementing new policies and changes where necessary.
Programming
the planning, scheduling, or performing of a program
energy audits
is like an accounting system
for energy.
energy conservation measures
is any type of project conducted or technology implemented to reduce the consumption on energy in a building.
Building Information Modeling {BIM}
is a computer simulation of the facility is defined as
a digital computer model of the physical and
functional characteristics of a facility, serving as a
shared resource for exchange of information. BIM
is comprised of two distinct programs.
Load Calculation Program
uses all
building information such as construction material
details, window details, lighting, other electric,
personnel schedules and design weather data in
order to correctly size Heating, Ventilation, and Air
Conditioning and Refrigeration {HVACR}
equi
Building Simulation program
uses the load calculation program above, and uses
Typical Meteorological Year weather data {TMY} along with utility and equipment
data, to compute an annual energy usage and utility cost of operation.
TMY
Typical Meteorological Year
HVACR
Heating, Ventilation, and Air
Conditioning and Refrigeration
ECM
Energy Conservation Measures
life cycle
a series of stages through which something (as an individual, culture, or manufactured product) passes during its lifetime
Stake holder
a person or business that has invested money in something (such as a company)
Commercial Building Energy Consumption Survey (CBECS)
is a national sample
survey that collects information on the stock of u.s. commercial buildings; their
energy related building characteristics, and their energy consumption and expenditures
EIA
Energy Information Administration
NBECS.
Nonresidential Buildings Energy Consumption Survey known as From 1979 to 1986
(O&M
Operational and Maintenance
(ECM
Energy Conservation Measures
Building Envelope
A building envelope includes all the components that make up the shell or skin of the building. These components separate the exterior of the building from the interior, and are designed by the project architect or engineers to meet the needs of each indi
Environment
the conditions that surround someone or something : the conditions and influences that affect the growth, health, progress, etc., of someone or something
Preliminary or Walk through Energy Audit
This energy audit takes the least amount of time and has the lowest cost.
Little or no engineering or energy calculations are done. Simple suggestions are
made based on observation, such as wattage and types of lamps used, lights being
left on, poor build
General Energy Audit
expands on the preliminary audit and corrective
measures, as well as costs, in detail. The utility bills for the building in the previous
years (1 - 3), are reviewed and specific problem areas are specifically identified.
Some engineering and calculations
Technical or Engineering Energy Audit
is the most complex of the energy
audits and takes the most time and money. A full analysis of a customer's
purchase and utilization of all energy forms is done and is sometimes called a
building performance study. Detailed energy utilization scenarios ar
peak demand
describes a period of simultaneous, strong consumer demand or a period of highest demand in a billing period.
spot purchased
A single shipment of fuel or volumes of fuel purchased for delivery within 1 year. Spot purchases are often made by a user to fulfill a certain portion of energy requirements, to meet unanticipated energy needs, or to take advantage of low-fuel prices.
baseline
a minimum or starting point used for comparisons.
kilowatt hour
a measure of electrical energy equivalent to a power consumption of 1,000 watts for 1 hour.
heat load calculation
is a calculated thermal quantity used to establish the size of an air conditioner necessary to effectively control the temperature in a building or space. Essentially the term heat load refers to the amount of heat that must be removed from any space in a
Btu
It is the amount of energy needed to cool or heat one pound of water by one degree Fahrenheit
sensible heat
thermal energy whose transfer to or from a substance results in a change of temperature
latent heat
the heat required to convert a solid into a liquid or vapor, or a liquid into a vapor, without change of temperature.,heat given off or absorbed in a process (as fusion or vaporization) other than a change of temperature
solar heat gain
refers to the increase in temperature in a space, object or structure that results from solar radiation.
Heat Gain
The net increase in Btus, caused by heat transmission, within a given space.
R-ValueR-Value
the capacity of an insulating material to resist heat flow. The higher the R-value, the greater the insulating power.
LCCA
Life Cycle Assessment or Life Cycle Cost Analysis
Life Cycle Cost
Sum of all recurring and one-time (non-recurring) costs over the full life span or a specified period of a good, service, structure, or system. In includes purchase price, installation cost, operating costs, maintenance and upgrade costs, and remaining (r
LCCA)
Life Cycle Cost Analysis
Life Cycle Assessment
s a tool for the systematic evaluation of the environmental aspects of a product or service system through all stages of its life cycle. LCA provides an adequate instrument for environmental decision support.
Life Cycle Cost Analysis prediction
is a method for assessing the total cost of facility ownership.It takes into account all costs of acquiring, owning, and disposing of a building or building system.