W. Saman | University of South Australia (original) (raw)
Papers by W. Saman
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Energy Procedia, 2014
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Solar assisted air conditioning systems using liquid desiccants represent a promising option to d... more Solar assisted air conditioning systems using liquid desiccants represent a promising option to decrease the high summer energy demand caused by electrically driven vapor compression machines. However, for these systems high efficient and reliable components need to be developed and the design has to be adjusted to each respective building design, location and user demand. The paper presents the design of a prototype for one of the main components of liquid desiccant systems and reports on its experimental performance. A numerical model has been developed for the simulation environment TRNSYS and validated using the experimental data. With this model parametric studies of the component performance have been carried out.
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… Conference Solar Air- …, 2005
... A possible system concept for an integrated system, which reduces overall costs for ... h, re... more ... A possible system concept for an integrated system, which reduces overall costs for ... h, regenerator water mass flow rate: 350kg/h. The values on the left hand side represent the energy demand of the building investigated, the ... [3] Khan, A., Sulsona, F.: Modelling and parametric ...
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Within many building thermal models as well as industry handbooks the thermal resistance or R val... more Within many building thermal models as well as industry handbooks the thermal resistance or R value, of bulk insulation and reflective air spaces is assumed to equate to rated values. An experimental investigation was undertaken in which the thermal resistance, for the heat flow through a timber framed pitched roofing system was measured under outdoor conditions for the summer case. The measured R value of a reflective attic space compared well with published data used in standards. However, with higher R value systems containing bulk insulation within the timber frame, the measured result was approximately half the rated R value. It was concluded that the difference was due to the design and installation defects, which can vary significantly between installation. As a means to mitigate against achieving a low R value the application of reflective paints was investigated. Overall reflective paints can significantly reduce the heat flow in sunny summer conditions. For a charcoal roof, a reflective paint can achieve an effective R value up to 5 m 2 K/W and for a galvanised roof, the effective R value can reach 1 m 2 K/W, under sunny conditions.
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Solar assisted air conditioning systems using liquid desiccants represent a promising option to d... more Solar assisted air conditioning systems using liquid desiccants represent a promising option to decrease high summer energy demand caused by electrically driven vapor compression machines. The main components of liquid desiccant systems are absorbers and regenerators. However, high efficient and validated reliable components are required and the design and operation have to be adjusted to each respective building design, location, and user demand. Simulation tools can help to optimize component and system design. The present paper presents new developed numerical models for absorbers and regenerators, as well as experimental data of a regenerator prototype. The models have been compared with a finite- difference method model as well as experimental data.
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Phase change materials can be used for storing energy for space heating and cooling. This paper i... more Phase change materials can be used for storing energy for space heating and cooling. This paper investigates the use of phase change materials based on a paraffin wax homogeneously bound within fibreboards for the application of space heating. Results from testing are compared to those from an existing computer model which was developed specifically for phase change materials based on a salt hydrate. The fibreboard is also compared to another commercially available material based on a salt hydrate, which is also being considered for space heating.
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There are few heat pumps in industry which make use of both the heating and cooling generated at ... more There are few heat pumps in industry which make use of both the heating and cooling generated at the same time. The University of South Australia is involved in the development of one such system for a dairy farm. In order to take advantage of the cheap off-peak electricity tariff, the heat pump generates ice in an ice-bank during the night, which is used for milk cooling during the day. The heat released while the ice is being made is used to produce the daily requirements of hot water. The advantages of this system are that both initial capital cost and energy consumption are reduced. The paper describes the operation of this system and presents some results to indicate the system performance and energy cost savings.
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EXECUTIVE SUMMARY Under the CSIRO Energy Transformed Flagship, a three year collaborative researc... more EXECUTIVE SUMMARY Under the CSIRO Energy Transformed Flagship, a three year collaborative research project was established between five Australian universities: University of Technology, Sydney, University of Queensland, University of South Australia, ...
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... Prof. Wasim Saman Dr David Whaley Mr Lachlan Mudge Dr Edward Halawa Dr Jane Edwards INTELLIGE... more ... Prof. Wasim Saman Dr David Whaley Mr Lachlan Mudge Dr Edward Halawa Dr Jane Edwards INTELLIGENT GRID ... Contributions from other UinSA team members including Monica Oliphant, Stephen Berry, Jarrod Hardy and Rhys Docking are also duly acknowledged. Citation ...
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SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems
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Energy Procedia, 2014
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Solar assisted air conditioning systems using liquid desiccants represent a promising option to d... more Solar assisted air conditioning systems using liquid desiccants represent a promising option to decrease the high summer energy demand caused by electrically driven vapor compression machines. However, for these systems high efficient and reliable components need to be developed and the design has to be adjusted to each respective building design, location and user demand. The paper presents the design of a prototype for one of the main components of liquid desiccant systems and reports on its experimental performance. A numerical model has been developed for the simulation environment TRNSYS and validated using the experimental data. With this model parametric studies of the component performance have been carried out.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
… Conference Solar Air- …, 2005
... A possible system concept for an integrated system, which reduces overall costs for ... h, re... more ... A possible system concept for an integrated system, which reduces overall costs for ... h, regenerator water mass flow rate: 350kg/h. The values on the left hand side represent the energy demand of the building investigated, the ... [3] Khan, A., Sulsona, F.: Modelling and parametric ...
Bookmarks Related papers MentionsView impact
Within many building thermal models as well as industry handbooks the thermal resistance or R val... more Within many building thermal models as well as industry handbooks the thermal resistance or R value, of bulk insulation and reflective air spaces is assumed to equate to rated values. An experimental investigation was undertaken in which the thermal resistance, for the heat flow through a timber framed pitched roofing system was measured under outdoor conditions for the summer case. The measured R value of a reflective attic space compared well with published data used in standards. However, with higher R value systems containing bulk insulation within the timber frame, the measured result was approximately half the rated R value. It was concluded that the difference was due to the design and installation defects, which can vary significantly between installation. As a means to mitigate against achieving a low R value the application of reflective paints was investigated. Overall reflective paints can significantly reduce the heat flow in sunny summer conditions. For a charcoal roof, a reflective paint can achieve an effective R value up to 5 m 2 K/W and for a galvanised roof, the effective R value can reach 1 m 2 K/W, under sunny conditions.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Solar assisted air conditioning systems using liquid desiccants represent a promising option to d... more Solar assisted air conditioning systems using liquid desiccants represent a promising option to decrease high summer energy demand caused by electrically driven vapor compression machines. The main components of liquid desiccant systems are absorbers and regenerators. However, high efficient and validated reliable components are required and the design and operation have to be adjusted to each respective building design, location, and user demand. Simulation tools can help to optimize component and system design. The present paper presents new developed numerical models for absorbers and regenerators, as well as experimental data of a regenerator prototype. The models have been compared with a finite- difference method model as well as experimental data.
Bookmarks Related papers MentionsView impact
Phase change materials can be used for storing energy for space heating and cooling. This paper i... more Phase change materials can be used for storing energy for space heating and cooling. This paper investigates the use of phase change materials based on a paraffin wax homogeneously bound within fibreboards for the application of space heating. Results from testing are compared to those from an existing computer model which was developed specifically for phase change materials based on a salt hydrate. The fibreboard is also compared to another commercially available material based on a salt hydrate, which is also being considered for space heating.
Bookmarks Related papers MentionsView impact
There are few heat pumps in industry which make use of both the heating and cooling generated at ... more There are few heat pumps in industry which make use of both the heating and cooling generated at the same time. The University of South Australia is involved in the development of one such system for a dairy farm. In order to take advantage of the cheap off-peak electricity tariff, the heat pump generates ice in an ice-bank during the night, which is used for milk cooling during the day. The heat released while the ice is being made is used to produce the daily requirements of hot water. The advantages of this system are that both initial capital cost and energy consumption are reduced. The paper describes the operation of this system and presents some results to indicate the system performance and energy cost savings.
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Bookmarks Related papers MentionsView impact
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EXECUTIVE SUMMARY Under the CSIRO Energy Transformed Flagship, a three year collaborative researc... more EXECUTIVE SUMMARY Under the CSIRO Energy Transformed Flagship, a three year collaborative research project was established between five Australian universities: University of Technology, Sydney, University of Queensland, University of South Australia, ...
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... Prof. Wasim Saman Dr David Whaley Mr Lachlan Mudge Dr Edward Halawa Dr Jane Edwards INTELLIGE... more ... Prof. Wasim Saman Dr David Whaley Mr Lachlan Mudge Dr Edward Halawa Dr Jane Edwards INTELLIGENT GRID ... Contributions from other UinSA team members including Monica Oliphant, Stephen Berry, Jarrod Hardy and Rhys Docking are also duly acknowledged. Citation ...
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SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems
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