Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector
This paper assesses the performance of waste heat recovery from commercial kitchen wastewater in practice. A pilot study of heat recovery from the kitchen at Penrhyn Castle, a tourist attraction in North Wales (UK), is outlined. The pilot heat recovery site was designed and installed, comprising a h...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/20/3646 |
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| author | Jan Spriet Ajeet Pratap Singh Brian Considine Madhu K. Murali Aonghus McNabola |
| author_facet | Jan Spriet Ajeet Pratap Singh Brian Considine Madhu K. Murali Aonghus McNabola |
| author_sort | Jan Spriet |
| collection | DOAJ |
| description | This paper assesses the performance of waste heat recovery from commercial kitchen wastewater in practice. A pilot study of heat recovery from the kitchen at Penrhyn Castle, a tourist attraction in North Wales (UK), is outlined. The pilot heat recovery site was designed and installed, comprising a heat exchanger, recirculation pumps, buffer tank and an extensive temperature/flow monitoring system for performance monitoring of the waste heat recovery system. Continuous monitoring was conducted for a period of 8 months, covering the 2022 tourist season. The recovered heat from the kitchen wastewater preheats the incoming cold freshwater supply and consequently reduces the amount of energy consumed for subsequent water heating. Retrofitting the pilot heat recovery system to the kitchen drains resulted in a heat saving of 240 kWh per month on average, a reduction of 928.8 kg CO<sub>2</sub>e per year, and a payback period for the investment costs of approximately two years, depending on the cost of energy supply. The presented results illustrate the potential of this form of renewable heat in reducing the carbon footprint of water heating activities in buildings and the hospitality sector. |
| first_indexed | 2024-03-10T20:48:47Z |
| format | Article |
| id | doaj.art-595cf1716e244b05bdeb782f8e4e5744 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T20:48:47Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-595cf1716e244b05bdeb782f8e4e57442023-11-19T18:30:47ZengMDPI AGWater2073-44412023-10-011520364610.3390/w15203646Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism SectorJan Spriet0Ajeet Pratap Singh1Brian Considine2Madhu K. Murali3Aonghus McNabola4Department of Civil, Structural & Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, IrelandDepartment of Civil, Structural & Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, IrelandDepartment of Civil, Structural & Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, IrelandDepartment of Civil, Structural & Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, IrelandDepartment of Civil, Structural & Environmental Engineering, Trinity College Dublin, D02 PN40 Dublin, IrelandThis paper assesses the performance of waste heat recovery from commercial kitchen wastewater in practice. A pilot study of heat recovery from the kitchen at Penrhyn Castle, a tourist attraction in North Wales (UK), is outlined. The pilot heat recovery site was designed and installed, comprising a heat exchanger, recirculation pumps, buffer tank and an extensive temperature/flow monitoring system for performance monitoring of the waste heat recovery system. Continuous monitoring was conducted for a period of 8 months, covering the 2022 tourist season. The recovered heat from the kitchen wastewater preheats the incoming cold freshwater supply and consequently reduces the amount of energy consumed for subsequent water heating. Retrofitting the pilot heat recovery system to the kitchen drains resulted in a heat saving of 240 kWh per month on average, a reduction of 928.8 kg CO<sub>2</sub>e per year, and a payback period for the investment costs of approximately two years, depending on the cost of energy supply. The presented results illustrate the potential of this form of renewable heat in reducing the carbon footprint of water heating activities in buildings and the hospitality sector.https://www.mdpi.com/2073-4441/15/20/3646wastewater heat recoveryheat exchangerenewable heatheating loadenergy saving |
| spellingShingle | Jan Spriet Ajeet Pratap Singh Brian Considine Madhu K. Murali Aonghus McNabola Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector Water wastewater heat recovery heat exchange renewable heat heating load energy saving |
| title | Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector |
| title_full | Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector |
| title_fullStr | Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector |
| title_full_unstemmed | Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector |
| title_short | Design and Long-Term Performance of a Pilot Wastewater Heat Recovery System in a Commercial Kitchen in the Tourism Sector |
| title_sort | design and long term performance of a pilot wastewater heat recovery system in a commercial kitchen in the tourism sector |
| topic | wastewater heat recovery heat exchange renewable heat heating load energy saving |
| url | https://www.mdpi.com/2073-4441/15/20/3646 |
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