Feasibility study for reduce water evaporative loss in a power plant cooling tower by using air to Air heat exchanger with auxiliary Fan

Deziani, M.; Rahmani, Kh.; Roudaki, S. Javad M.; Kordloo, M.

doi:10.1016/j.desal.2015.12.007

Cited by 60 publications

(29 citation statements)

References 1 publication

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“…• [31]. The thermodynamic parameters (temperature and pressure) at the inlet and exit of the NDWCT are given in Table 1.…”

Section: Thermal Analysis Of Novel Design Of Wet Cooling Towermentioning

confidence: 99%

“…However, numerical analysis of cooling towers was examined using the energy, exergy, and techno-economic and simulation results compared with available experimental outcomes. The NDWCT's water savings were experimentally determined using operating parameters [31]. However, the numerical analysis of the NDWCT in terms of energy, exergy, LCC and environmental assessment is not found in the available literature.…”

Section: Introductionmentioning

confidence: 99%

“…This study aims to find NDWCT's (a) thermal performance of the NDWCT using thermodynamic analysis, (b) determine the economic feasibility using LCC analysis and (c) environmental friendliness using environmental assessment methods. Firstly, it develops an appropriate mathematical model using the experimental data available in [31]. The simulation of the developed mathematical model performed in Engineering Equation Solver.…”

Section: Introductionmentioning

confidence: 99%

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4e (Energy, Exergy, Economic and Environmental) Analysis of the Novel Design of Wet Cooling Tower

Kumar

Zehra

Junejo

et al. 2020

Journal of Thermal Engineering

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This study aims to calculate the performance of the novel design of wet cooling tower (NDWCT) using first law (energy) and second law (exergy) of thermodynamics. Moreover, it determines the economic feasibility (cost savings and payback period) and sustainability of the NDWCT using the life-cycle cost (LCC) and environmental assessment method. An appropriate mathematical model is developed and simulated in Engineering Equation Solver to calculate water savings, performance and payback period of additional investment. The simulation results have a good agreement with the experimental outcomes (error 2.6%). Simulation results revealed that the NDWCT consumes 34.48% less water than the conventional wet cooling tower (WCT). The installation of heat exchanger improves the performance of WCT by 6% because the consumption of water to air ratio increases. Moreover, the exergy destruction in the NDWCT is 1.23 MW lower than the conventional WCT. Additionally, the heat exchanger costs k$30.7 to save an annual fuel cost of k$72 which could be recovered within a payback period of 0.37 years. Lastly, the environmental assessment proves that the NDWCT relinquishes the particulate matter emission by 0.042 g/s.

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“…• [31]. The thermodynamic parameters (temperature and pressure) at the inlet and exit of the NDWCT are given in Table 1.…”

Section: Thermal Analysis Of Novel Design Of Wet Cooling Towermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

4e (Energy, Exergy, Economic and Environmental) Analysis of the Novel Design of Wet Cooling Tower

Kumar

Zehra

Junejo

et al. 2020

Journal of Thermal Engineering

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“…Air-to-air heat exchanger systems have been in the market for decades. The ability for energy saving has been well demonstrated and documented (Deziani et al 2017). In rs 10 , the air-to-air heat exchanger systems, using cooling capacity recovered from exhaust air to temper the hot and humid outdoor air coming into the building is applied to help reduce the load and also the size of the air conditioning equipment to maintain the same set point within the spaces.…”

Section: Analysis Of Retrofitting Scenariosmentioning

confidence: 99%

Energy utilizability concept as a retrofitting solution selection criterion for buildings

Yang

Chong

Santamouris

et al. 2017

Journal of Civil Engineering and Management

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Retrofitting is widely explored as one of the energy conserving opportunities for existing buildings, in which both passive and active solutions are carefully evaluated. However, when different retrofitting solutions are combined and applied to a building, the total energy savings potential, which is less than the sum of the savings from applying the various individual retrofitting solutions, is considerably reduced and the synergies among the various technologies need to be understood and evaluated. In this study, the concept of utilizability is employed for the analysis of multiple energy retrofitting solutions in buildings and is defined as the ratio of energy savings derived from applying combined solutions to a building over the sum of individual energy savings from applying individual solutions. It is aimed at providing a better understanding of the combined retrofitting solutions. The sensitivity analysis on the utilizability value further provides a selection criterion for retrofitting solution selection.

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“…Marcia et al [24] proposed to use cooled porous media based on thermosiphons technology to recover the vapor from a cooling tower. Deziani et al [25] developed a laboratory model of a wet cooling tower with an air-to-air heat exchanger to study its potential for reducing water consumption, and 35% water conservation could be expected.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for Water Conservation and Plume Abatement in Mechanical Draft Cooling Towers

Wang

Zhao

et al. 2019

Atmosphere

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While the visible plume from a cooling tower is not a pollutant, it can affect the surrounding environment. Moreover, the accompanied evaporation loss has a great potential for wastewater recovery. In the present study, a novel coupling technology for water conservation and plume abatement was proposed, and its feasibility was verified by using thermodynamic analysis. A surface-type heat exchanger was designed and a thermodynamic calculation model was established. Next, based on the principle of “no plume,” the effect of the number of heat exchanger units (N) and the circulating water volume (G) on the water conservation and plume abatement was evaluated under design condition. Results showed that the optimized parameters for the operation of the cooling towers were N = 8 and G < 3000 m3/h, which have a good effect on water conservation and plume abatement. Furthermore, as per the condensation calculation model, the average water conservation amount was 1.105 kg/s and the annual water conservation amount reached 2.8641 × 107 kg.

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Feasibility study for reduce water evaporative loss in a power plant cooling tower by using air to Air heat exchanger with auxiliary Fan

Cited by 60 publications

References 1 publication

4e (Energy, Exergy, Economic and Environmental) Analysis of the Novel Design of Wet Cooling Tower

4e (Energy, Exergy, Economic and Environmental) Analysis of the Novel Design of Wet Cooling Tower

Energy utilizability concept as a retrofitting solution selection criterion for buildings

A Novel Approach for Water Conservation and Plume Abatement in Mechanical Draft Cooling Towers

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