According to the report mentioned by my colleague Avraam, the dataset models a control cabinet of a CHP with a capacity of 160 kWel and 360 kW th, installed in the late 1980ies, which was chosen as representative for this purpose.
The price and measurements (h*l*w) were known about the control cabinet. In addition, the following assumptions were made:
· Cabinet: 12m3 wall surface of 2mm depth made from steel with a density of 7.9*103 kg/m3, which results in a weight of 190 kg.
· Electronics: based on the given price it was derived that the cabinet contains about 187 kg of electronics. This was broken down into several material fractions as listed in table 4.18 of the mentioned report.
· Assumptions on energy requirements for the assembly and installation of the control cabinet were based on the available data on prices and energy intensities. 1690 kWh electricit energy, 82700 MJ natural gas and light fuel oil each, as stated in table 4.19, p. 40 of the report.
Given the assumptions and uncertainties involved in the energy data, you may wish to replace it with the specifc data you have for the system you are modelling.
Data Analyst, ecoinvent