Browsing by Author "Walmsley, Timothy Gordon"

Now showing items 6-10 of 72

  • Approximation of non-linear cost functions in p-graph structures

    Ong, Benjamin H.Y.; Walmsley, Timothy Gordon; Atkins, Martin John; Walmsley, Michael R.W.; Neale, James R. (AIDIC, 2016)
    P-graph employs combinatorial and optimisation algorithms to solve process network synthesis (PNS) problem. However, the P-graph framework requires linear cost functions when optimising PNS problems. As a result, a high ...

  • Area targeting and storage temperature selection for heat recovery loops

    Walmsley, Michael R.W.; Walmsley, Timothy Gordon; Atkins, Martin John; Neale, James R. (AIDIC Servizi S.r.l., 2012)
    Inter-plant heat integration across a large site can be achieved using a Heat Recovery Loop (HRL). In this paper the relationship between HRL storage temperatures, heating and cooling utility savings (heat recovery) and ...

  • Assisted heat transfer and shaft work targets for increased total site heat integration

    Walmsley, Timothy Gordon; Atkins, Martin John; Tarighaleslami, Amir Hossein; Liew, Peng Yen (AIDIC, 2016)
    Total Site Heat Integration (TSHI) provides a valuable framework for practical integration of multiple energy users. Previous studies have introduced the idea of utilising process heat recovery pockets to assist TSHI. ...

  • California’s Renewables Portfolio Standard (RPS) requires 33% renewable electricity generation by 2020 - Dream or Reality?

    Walmsley, Michael R.W.; Walmsley, Timothy Gordon; Atkins, Martin John (SDEWES, 2014-09-20)
    Progress on California’s Renewable Portfolio Standard (RPS), which requires 33% of all retail electricity sales to be served by renewable energy sources by 2020, excluding large hydro, is reported in this paper. The emerging ...

  • Carbon emissions efficiency and economics of combined heat and power in New Zealand

    Atkins, Martin John; Walmsley, Timothy Gordon; Philipp, Matthias; Walmsley, Michael R.W.; Neale, James R. (AIDIC (Italian Association of Chemical Engineering), 2017)
    Combined Heat and Power (CHP) or cogeneration, is a common and often cost effective method to maximise the efficiency and utilisation of fossil fuels. Greenhouse Gas (GHG) emissions from the electricity generated using CHP ...