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©Maxim Kazmin/Dollar Photo Club

energy efficiency

Energy efficiency

© Studio Gi /Dollar Photo Club

in the food and beverage industry

Food industry companies are increasingly confronted with the challenges of climate protection and sustainable development. The motto is: more efficiency, less CO2.

W

hat savings potential

may neither be detrimental to food quality

always available for production. 50,000

can still be achieved in

or food safety” — which, in other words,

MWh, about two-thirds of the steam required,

modern food production?

means many of the measures developed in

generates heat recovery. It is claimed the

177 times around the

other industries are not suitable.

company thereby saves up to 11,000 tonnes

world with a mid-sized

of carbon dioxide annually.

car — the carbon dioxide

Synergy effects in the heating cycle

The fact that energy demand can be

emissions of such a journey correspond to

Delgado sees one way to greater energy

systematically reduced by intelligently

the annual potential savings that measure-

efficiency is the use of energetic interac-

combining existing facilities is also held

ment technology vendor Endress+Hauser has

tions between the production process and

true at Warsteiner, in Germany. The family

estimated for a single mid-sized company

infrastructure. First and foremost, large

brewery invests continuously to increase

in the meat industry. Energy costs only

savings potential results from the syner-

its efficiency while protecting the environ-

account for an average 2% of revenues in

getic effects between heat generation and

ment. The loading hall’s ventilation system

the food industry. But sustainable solutions

refrigeration. How creative companies can

has recently been upgraded to the latest

to reduce energy consumption are essential

become in this regard is demonstrated by

technology. The ventilation system ducts

for producers if they want to survive in the

Maggi in Singen, Germany. The plant uses

were improved, the supply air optimised, the

market over the long term. “Energy efficiency

the waste heat from the nearby cupola

control system retooled, ceiling fans were

plays a key role in this regard,” said Prof.

furnace of a foundry. The energy extracted

installed and several small heat recovery

Dr Antonio Delgado from the University of

from the exhaust gas is stored in a ther-

systems retrofitted. As a result, these meas-

Erlangen-Nuremberg in Germany.

mal oil and pumped through a conduit into

ures not only save valuable heating energy

This scientist sees the food industry in

Maggi’s boiler house 200 m away. There,

and improve air quality in the loading hall,

a particular area of conflict because “any

a complex system of heat exchangers and

but CO2 emissions are also lowered by an

measure taken to increase energy efficiency

steam boilers ensures that pure steam is

estimated 1100 tonnes per year as a result.

www.SustainabilityMatters.net.au

Oct/Nov 2015 - Sustainability Matters 23

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Sustainability Matters Oct/Nov 2015  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...

Sustainability Matters Oct/Nov 2015  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...