Monday 18 February 2019

Annotated Summary


Seung, J.O., Kim, C.N., Kyaw, T., Chun, W. & Chua, K.J.E. (2016). Forecasting long-term
electricity demand for cooling of Singapore’s buildings incorporating an innovative air-conditioning technology. Energy and Buildings, 127, 183-193. doi:10.1016/j.enbuild.2016.05.073
                       
This article focuses on one of the methods that can potentially save electricity consumption in Singapore which in return, will reduce Singapore’s carbon footprint. As Singapore’s climate is warm and humid, there is an undeniable demand for buildings in Singapore to be air-conditioned throughout the year. The authors claim that a substantial amount of electricity is saved when there is a change or upgrade in the central air-conditioning system. In the article, the authors propose to implement a “high energy conservative scenario” to predict the electricity consumption of air-conditioners in the long-run. The main feature of this scenario is to replace the traditional mechanical vapour compression (MVC) air-conditioning system with an “adsorbent-based dehumidifier and an indirect evaporative cooling (AD-IEC) technology”. By replacing the traditional air-conditioning system, the authors hope to raise the chiller efficiency to 0.6 kW/RT ± 0.05 or more. A technique has been created to approximate the nationwide cooling load of air-conditioned buildings in Singapore. This technique predicts the long-run electricity consumption depending on the two different scenarios; MVC air-conditioning system and AD-IEC cooling technology. According to the authors, the MVC system consumes 182 m3/day of cooling tower water while the AD-IEC only consumes 75 m3/day which saves over 50% of the total energy consumption. Bottom-up equations have been created to approximate the cooling load and electricity demand for air-conditioning in Singapore buildings between 2002 and 2013. The authors observe that the total cooling load of buildings increases when gross floor area (GFA) increase. They also claim that 31 ± 2% of the total electricity consumption in Singapore is used to supply electricity demands for air-conditioning in building sectors.

* Edited on 19/02/2019, 13:29
* Commented on Lu Sheng's, Aufal's and Daniel's posts.
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7 comments:

  1. Brad Blackstone21 February 2019 at 19:17

    Thanks very much, Nurul, for sharing the interesting info from this valuable article. I appreciate learning about the topic, and it's connected to your project well.

    ReplyDelete
  2. Muhammad Syahiran Zulkeple31 March 2019 at 11:21

    Thank you Nurul for sharing this topic regarding electricity consumption in Singapore. I believe that this a good topic as it is related to your topic of reducing electricity consumption in Singapore.

    This summary shares one of the solution which is to replace the traditional air-conditioning method which enables to have a better view of the topic and constructing of creative ideas of tackling this issue in different ways.

    ReplyDelete
  3. Ahmad Akram31 March 2019 at 12:57

    This comment has been removed by the author.

    ReplyDelete
  4. Ahmad Akram31 March 2019 at 12:59

    Thank you, Nurul on your sharing of this article. I was dumbfounded with the information that, although non- residential buildings are smaller compared with the residential area, non- residential buildings contributed fourth-fifth of the 30% of total Singapore’s electricity consumption significantly due to “cooling load’.

    I am glad that the solution proposed by the authors could able to reduce the energy consumption by 50% which in fact will make a considerable contribution to the every growing carbon footprint due to the exponential growth of urbanisation.

    ReplyDelete
  5. Jayce31 March 2019 at 18:11

    Hi Nurul,

    Your annotated summary is well written with lots of information on energy saving.

    Cheers
    Jayce

    ReplyDelete
  6. Lu Sheng10 April 2019 at 23:49

    Hi Nurul,

    Thank you for this well written article. I agree that it is important for us to reduce energy usage as much as possible so as to reduce the harmful impacts caused to the environment from energy generation.

    Cheers,
    Lu Sheng

    ReplyDelete
  7. Baizurah 180168113 April 2019 at 08:03

    Hi Nurul

    With the figures shown in this article, I am amazed with the amount of electricity used for an air-conditioning appliances. This is a well informative post which made me want to take part in minimizing my usage for any electrical appliances too.

    Regards
    Baiz

    ReplyDelete

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