About

Adjunct Professor of Catalysis at Chalmers University of Technology. Lives in Gothenburg, Sweden with my wife and three daughters born in 1991, 1994 and 1997. Is a passionate runner that likes long runs on trails with the Lagotto dog Zoei.

4 Responses to About

  1. Nellie Asp says:

    Hi,

    We´re six students from KTH (Kungliga tekniska högskolan) in Stockholm and we´re working with a project where we investigate the measurement carbon footprint.

    I read what you posted on May 30th, 2008. I know it´s a long time ago, but maybe you have som data avaible anyway. We´ve alreade e-mailed student@volvo.com and also groupinfo@volvo.com, without any answers. Therefor since I´ve been reading your blog a bit I thought you might have some knowledge about our questions?
    This is the email we sent, a few questions and more about our project.

    /Nellie Asp (nelliea@kth.se)

    More specifically we want to know what how much carbon footprint a typical car leaves behind. There are many calculations about cars different energy use, but usually the reports don´t calculate the carbon footprint that comes out of producing a car. Therefore we want to look at carbon footprint for a cars whole technical durability, including the process of making the car.

    We are turning us to you, Volvo, to ask if you have any carbon footprint calculations on your vehicles?

    – Have you measured carbon footprint on any of your car models?
    – Have you measured carbon footprint on a certain part of a cars durability; the first 1000 kilometres, the first 10 000 kilometres, the last 1000 kilometres or just the scrapping of a car?
    – Do you have any other information on carbon footprint on cars?
    -If you have measured carbon footprint on your car models, in what way have reached the result?

    We don´t have any requirements that the car is of a certain model or year, just that it rather should be driven by petrol as we´re also looking at carbon footprint for 1 m3 petrol in our project.

    We appreciate any help we can get, alternative if you could send us further to someone who has deeper knowledge in the subject.

    Thanks in advance

    Friendly regards,

    Nellie Asp, Daniel Larsson, Aya Hayder, Yuriy Tsoy, Jonna Karlsson, Camilla Sundin.
    Advisor for the project is Christopher Sylwan, KTH Engineer educational department.

  2. Melumzi Nontangana says:

    I am working on a feasibility study on the use of Compressed Biomethane Gas (CBG) as dual fuel for public transport in the Eastern Cape and Western Cape provinces of South Africa. The CBG will be produced from agro-residues and Giant King Grass that grown from irrigation schemes. In the case of the Western Cape, more specifically Cape Town, I am investigating the replacement of ppm 50 Sulphur diesel powered Volvo buses 12m and 18m with new or retrofitted Volvo buses. The current phase of the public transport MyCiti Bus Service uses 42 B7R (12m) and 8 B12m (18m) Volvo buses. In the phase 2 of the MyCiti Bus Service Volvo B9LE (18m low floor) and Volvo B9L (12m low floor) buses will be procured. I would like assistance in getting some technical and economic information on the equivalent dual fuel buses for the phase 1 and phase 2 of 12m and 18m buses. Specific required information is the price of the dual fuel buses, fuel consumption for both the diesel and CBG (or equivalent CNG). What is the configuration of diesel and CBG (or CNG) fuel tanks? I am looking forward to you information.

    • volvobuses says:

      Dear Melumzi Nontagana,
      im delighted to hear about your work on biomethane. For wet waste this is mostly a very good solution.
      However, for the use you need to find an application where the gas can be used with high efficiency. Buses in general and city buses in particular run at very low load. The engine load is below 20% in average due to 30-50% idling of the engine. Unfortunately this takes the combustion engines to an efficiency of about 20%.
      If you would use the gas for electric power generation or if you would use it for a vehicle application with constantly high load you will have much better benefit of the gas. This is one of the reasons why we promote electro mobility so strongly for buses.

      In addition I should mention that we have tried a commercail LBG system on 12 buses for one of the better applications for regional buses. Even so it was a disapointment for us and for the operator.

      Let me whish you good luck in your work.

      Sincerely Yours, Edward Jobson

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