Life-Cycle-Assessment for Stoves and Ovens - ESU-services Ltd.

ackground data
-
foreground data
investigated in this study
Infrastructure of the
Stove (Material,
Transport)
Infra Gasherd
Inventory Analysis
Production of
Liquefied Gas
Kerosin/Butan ab
Raffinerie CH
Distribution of
Gas Cylinders
Propan/Butan an
Haushalt CH
Combustion of
Gas in the stove
Fluessiggas in
Fluessiggasherd
Useful heat produced
by the stove
Nutzwaerme ab Gasherd
Fig. 2 Life-cycle investigated for cooking with liquefied gas in the inventory and module names used in ECOIN-
VENT
2.1 Distribution of Cooking Fuels
2.1.1 Overview
The distribution of liquefied gas is investigated from the refinery to the delivery to the consumer.
This includes the filling of gas cylinders, the distribution and the transport. Emissions
due to leakage are also considered.
The distribution of kerosene is investigated from the point of regional storage to the consumer.
For this study a distribution in 1 liter plastic bottles is assumed. The data are based on
a rough assumption and not on a specific inventory. A previous investigation has shown the
relatively low impacts of the distribution. Parts of this study are quoted in the following section
(Jungbluth 1995).
It was not necessary to investigate the distribution of electricity, natural gas and wood because
adequate data are already included in the database ECOINVENT.
2.1.2 Life Cycle Inventory for the Distribution
Normally gas cookstoves can use natural gas delivered by pipeline in Switzerland. Town gas
is not anymore in use in Switzerland. In areas not connected to the gas grid, the use of butane
or propane stored in cylinders (LPG - Liquefied Petroleum Gas) is another alternative for
cooking with gas.
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