Life-Cycle cost-benefit analysis of Bridge deck de-icing using geothermal heat pump system: A case study of North Texas

Habibzadeh-Bigdarvish, Omid; Yu, Xinbao; Lei, Gang; Li, Teng; Puppala, Anand J.

doi:10.1016/j.scs.2019.101492

Cited by 39 publications

(27 citation statements)

References 20 publications

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“…In recent decades, reuse of wastewater has been considered as a new source of water in some countries. Moreover, it is obvious that lack of proper waste water management provokes excessive cost for the environment and for humans; however, a plausible study on the negative environmental impacts of deicing salt showed that due to difficulties in assigning a monetary value to environmental impacts, it is very difficult to calculate the overall cost (Habibzadeh-Bigdarvish et al 2019). In the United Kingdom, 10% of the water used in Essex (population 1.5 million) has been recycled, while in Singapore, 1% of the drinking water in 2007 was provided by the NEWater scheme, which produces high quality reclaimed water produced from treated used water that is further purified using advanced membrane technologies and ultra-violet disinfection, making it ultra-clean and safe to drink.…”

Section: Introductionmentioning

confidence: 99%

Seeking Substantiality: Evaluation of Public Attitudes toward Resilient Wastewater Reuse Management

Daghighi

Nahvi²,

Nazif

et al. 2020

JWMM

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Because of Iran's limited water resources, maximum usage of available water resources is a high priority. In this case study of Tehran, Iran, academic and industrial applications of the strengths, weaknesses, opportunities and threats (SWOT) approach provide an analysis of the main challenges of wastewater reuse. One possible solution for dealing with water crises is to reuse water in different consumption areas. An important step in this regard is to evaluate the public attitude toward different usages of recycled water, and to increase public participation in this process. In addition, questionnaires offer quantitative analysis of people's preferences with respect to wastewater reuse. The results suggest that the Tehran water department should consider defensive approaches to developing public participation in wastewater reuse. The main underlying reasons people are in favour of wastewater reuse are the provision of environmental protection from contamination caused by wastewater and irrigating farmlands of non-food products.

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Section: Introductionmentioning

confidence: 99%

Seeking Substantiality: Evaluation of Public Attitudes toward Resilient Wastewater Reuse Management

Daghighi

Nahvi²,

Nazif

et al. 2020

JWMM

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“…As a traditional method of project evaluation and economic analysis, cost-benefit analysis (CBA) has been applied in many countries. CBA can be used in many fields as a decision-making basis to judge the feasibility of the project [1][2][3]. CBA is more important to measure and evaluate the cost and benefit of investment projects.…”

Section: Introductionmentioning

confidence: 99%

Research on Investment Decision-Making in Waterway Engineering Based on the Hub Economic Index

et al. 2020

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Due to the wide range of waterway engineering strategies, the government often has the view that investment in hardware (such as construction, equipment renewal, etc.) is more important than that in software (such as information systems, service concepts, etc.) in the investment decision-making of waterway engineering. Besides, some government departments lack a consideration of coordinated development among different industries, resulting in the waterway industry lagging behind other industries (such as expressways, high-speed railway, etc.). To facilitate a more balanced infrastructure investment, we create a novel index, the Hub Economic Index (HEI), by incorporating the theory of the hub economy into the investment decision-making of waterway engineering. HEI consists of two major criteria, tangible and intangible assets, further divided into 10 indices. In particular, investment allocation between tangible and intangible assets is evaluated for the four major reaches of the North Jiangsu Canal. Multiple years of HEI values for the water transport industry are calculated for trend analysis and comparison with other industries. The results show that (1) through the comparison between the calculated values of the HEI investment model and the actual investment, the deviation of the tangible investment is 2.8% lower, and that of the intangible hub investment is 7.2% higher, which is basically in line with the actual situation. At the same time, it promotes the development of software; and (2) through the variation trends in HEI for various industries from 2008 to 2018, the HEI values of the different industries in the transportation system show a trend of steady growth. This is basically consistent with China's economic development trend, but also reflects the development gap between the different industries. The research results are of great significance to help the government to make investment decisions in different fields and industries. The investment based on HEI values will further promote the integrated development of the water transport industry and other industries.

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“…Traditionally, de-icing salt and other chemical deicers are used to prevent snow and ice accumulation on the bridge deck. Application of the chemical deicers is hazardous to the environment, laborintensive, time-consuming, corrosive to the bridge deck and in some cases causes more frequent and damaging freeze/thaw cycles [1][2][3][4][5]. Moreover, corrosion of the bridge deck eventually leads to the repair/rehabilitation actions and work zones on the bridges, which imposes delays on the travel time of the motorists and increases the risk of an accident as well [4].…”

Section: Introductionmentioning

confidence: 99%

“…Application of the chemical deicers is hazardous to the environment, laborintensive, time-consuming, corrosive to the bridge deck and in some cases causes more frequent and damaging freeze/thaw cycles [1][2][3][4][5]. Moreover, corrosion of the bridge deck eventually leads to the repair/rehabilitation actions and work zones on the bridges, which imposes delays on the travel time of the motorists and increases the risk of an accident as well [4]. Thus, new technologies have been developed that use geothermal energy for snow/ice melting on the bridge deck surface, prevents the corrosion of the bridge deck, and minimizes the environmental footprints [6,7].…”

Section: Introductionmentioning

confidence: 99%

Externally heated geothermal bridge deck: Performance analysis of the U-tube ground heat exchanger

Habibzadeh-Bigdarvish

Puppala

2020

E3S Web Conf.

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In recent years, the geothermal heat pump de-icing system (GHDS) is introduced as a sustainable solution for bridge deck de-icing, which utilizes renewable geothermal energy. Existing GHDS designs mostly rely upon hydronic loops embedded in concrete decks. To extend the GHDS for existing bridges, a new external hydronic deck has been developed recently, which employs a hydronic pipe being attached to the bottom surface of the bridge deck. In this study, the performance of the externally heated geothermal bridge deck is investigated through winter deicing and summer recharging tests with the focus on the ground loop heat exchanger (GLHE), a key component of the GHDS. The test results show that the de-icing system was successful in maintaining the deck surface temperature above freezing in all winter tests. The soil temperature measurements indicate, the 132.5 m vertical U-tube ground heat exchanger is benefited from the undisturbed soil temperature of around 21 °C. The overall average hourly heat extraction of 0.67 kW during winter operation and average hourly heat injection of 0.69 kW during the summer operation were observed. Also, the ground thermal recharge test showed the increase of undisturbed soil temperature at 1.5 m from the geothermal borehole by 0.36 °C after 50 days of system operation.

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Life-Cycle cost-benefit analysis of Bridge deck de-icing using geothermal heat pump system: A case study of North Texas

Cited by 39 publications

References 20 publications

Seeking Substantiality: Evaluation of Public Attitudes toward Resilient Wastewater Reuse Management

Seeking Substantiality: Evaluation of Public Attitudes toward Resilient Wastewater Reuse Management

Research on Investment Decision-Making in Waterway Engineering Based on the Hub Economic Index

Externally heated geothermal bridge deck: Performance analysis of the U-tube ground heat exchanger

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