Combination of a geothermal-driven double-flash cycle and a Kalina cycle to devise a polygeneration system: Environmental assessment and optimization

Hai, Tao; El-Shafay, A.S.; Alizadeh, As’ad; Chauhan, Bhupendra Singh; Almojil, Sattam Fahad; Almohana, Abdulaziz Ibrahim; Alali, Abdulrhman Fahmi

doi:10.1016/j.applthermaleng.2023.120437

Cited by 15 publications

(1 citation statement)

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“…For example, Cannistraro et al [4] evaluated the technical and economic feasibility of the integration of a cogeneration and trigeneration system fueled with natural gas in an existing dairy industry, located in the north of Italy. Hai et al [5] presented a study in which the waste heat of a geothermal-driven double flash cycle was efficiently recovered by a Kalina cycle and a thermoelectric generator. The further production of cooling energy and electricity by the heat recovered by the Kalina cycle and the hydrogen production by the output power of the high pressure turbine of the double-flash cycle allow an exergy efficiency of the system of 35.6%.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Heat Pump with Combined Cooling, Heat and Power Plant in Industrial Buildings: An Energy Analysis

Noro¹

2023

IJHT

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In this paper, the coupling of a high temperature heat pump with a combined cooling, heat, and power system is investigated. The plant converts the input energy source (natural gas) into electricity and useful thermal energy by means of a cogenerator. Part of the thermal energy feeds an absorption chiller that produces the cooling energy to satisfy the cooling load of an existing industrial building located in northern Italy. The heat pump enhances the low temperature heat from the condenser and absorber of the absorption chiller to high temperature heat to integrate the hot water produced by the cogenerator. The energy performance of the entire plant is analyzed by means of steady-state simulations at both fixed conditions and on an annual operation to meet the heating, cooling, and electric needs of the building varying different parameters and compared to traditional systems for energy production. As the main results, the integrated system provides flexibility and achieves valuable energy performances, in the range of a few tens of percent with respect to benchmark energy production systems.

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Section: Introductionmentioning

confidence: 99%