The operation characteristics of sewage source heat pump system and the analysis of its thermal economic benefits

Qin, Na; Hao, Peng

doi:10.1016/j.applthermaleng.2017.05.204

Cited by 21 publications

(6 citation statements)

References 19 publications

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“…It was shown that after two years of service time, a heat recovery system had lower total costs (initial and operating costs) than other conventional heating systems such as coal, oil, gas and electric boilers (Shen et al 2018). The thermal economic benefits were analyzed by Qin and Hao ((2017) and the COP was approximated to 4. Issues in the technical, economic and environmental aspects of WWSHPs was discussed in two studies (Fiore and Genon 2014;Schmid 2008).…”

Section: Wastewater Source Heat Pumps (Wwshps)mentioning

confidence: 99%

An assessment of the influence of local conditions on the economic and environmental sustainability of drain water heat recovery systems

Ravichandran

Diaz-Elsayed

Thomas

et al. 2021

Journal of Cleaner Production

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Section: Wastewater Source Heat Pumps (Wwshps)mentioning

confidence: 99%

An assessment of the influence of local conditions on the economic and environmental sustainability of drain water heat recovery systems

Ravichandran

Diaz-Elsayed

Thomas

et al. 2021

Journal of Cleaner Production

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“…The energy efficiency ratio of the sewage source heat pump is mainly affected by the water volume and water temperature on the inlet side and the user side. Generally, the heating/cooling coefficient of the sewage source heat pump is 5.0–6.0 [57].…”

Section: Green Energy For Wastewater Treatment Plantsmentioning

confidence: 99%

Integration of Green Energy and Advanced Energy-Efficient Technologies for Municipal Wastewater Treatment Plants

Guo

Sun

Pan

et al. 2019

IJERPH

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Wastewater treatment can consume a large amount of energy to meet discharge standards. However, wastewater also contains resources which could be recovered for secondary uses under proper treatment. Hence, the goal of this paper is to review the available green energy and biomass energy that can be utilized in wastewater treatment plants. Comprehensive elucidation of energy-efficient technologies for wastewater treatment plants are revealed. For these energy-efficient technologies, this review provides an introduction and current application status of these technologies as well as key performance indicators for the integration of green energy and energy-efficient technologies. There are several assessment perspectives summarized in the evaluation of the integration of green energy and energy-efficient technologies in wastewater treatment plants. To overcome the challenges in wastewater treatment plants, the Internet of Things (IoT) and green chemistry technologies for the water and energy nexus are proposed. The findings of this review are highly beneficial for the development of green energy and energy-efficient wastewater treatment plants. Future research should investigate the integration of green infrastructure and ecologically advanced treatment technologies to explore the potential benefits and advantages.

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“…Cho and Yun [6] investigated the utilization of HPs with a raw water source (a reservoir) for the air conditioning of a building; the experimental results were a COP of 3.3 in winter and a COP of 7.2 in summer. Qin and Hao [7] conducted experiments to analyze the performance of a sewage water source HP using a free-flow-channel heat exchanger. The results showed that the average COP was 4.0, and the exergetic cost was 7.8 W/W on average.…”

Section: Introductionmentioning

confidence: 99%

Ground Source and Sewage Water Source Heat Pump Systems for Block Heating and Cooling Network

Kim

Han

et al. 2021

Energies

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The demand for district heating and cooling systems in block units with a heat pump that utilizes various unused energy sources for energy supply has been increasing. This study investigated experimentally the ground source heat pump (GSHP) and sewage water source heat pump (SWSHP) facilities used in block cooling and heating networks. Then, a heat pump performance prediction model was derived for utilization in future designs. Operational data for heating and cooling energy supply from an experimental site were investigated for the period between 2018 and 2020. During the cooling season, the coefficient of performance (COP) of the GSHP was approximately 4.1, and that of the SWSHP was approximately 2.9. The cooling performance of the SWSHP gradually decreased because of the fouling. The COP of the GSHP and SWSHP during the heating season was approximately 3.6 and 3.4, respectively. The results also demonstrated that, if fouling in the SWSHP can be prevented or reduced, the acquired COP can be similar to that of the GSHP. The derived prediction model serves as a good reference for engineers who require information on the performance of field operations.

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The operation characteristics of sewage source heat pump system and the analysis of its thermal economic benefits

Cited by 21 publications

References 19 publications

An assessment of the influence of local conditions on the economic and environmental sustainability of drain water heat recovery systems

An assessment of the influence of local conditions on the economic and environmental sustainability of drain water heat recovery systems

Integration of Green Energy and Advanced Energy-Efficient Technologies for Municipal Wastewater Treatment Plants

Ground Source and Sewage Water Source Heat Pump Systems for Block Heating and Cooling Network

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