Development, experimental testing and techno-economic assessment of a fully automated marine organic rankine cycle prototype for jacket cooling water heat recovery
| Autor: | Sotirios Karellas, Efstratios Varvagiannis, Platon Pallis, Tryfonas Roumpedakis, Aris Dimitrios Leontaritis, Konstantinos Braimakis |
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| Rok vydání: | 2021 |
| Předmět: |
Organic Rankine cycle
Payback period Continuous operation 020209 energy Mechanical Engineering 02 engineering and technology Building and Construction Heat sink Diesel engine Pollution Industrial and Manufacturing Engineering General Energy 020401 chemical engineering Engine room Heat recovery ventilation 0202 electrical engineering electronic engineering information engineering Water cooling Environmental science 0204 chemical engineering Electrical and Electronic Engineering Civil and Structural Engineering Marine engineering |
| Zdroj: | Energy. 228:120596 |
| ISSN: | 0360-5442 |
| DOI: | 10.1016/j.energy.2021.120596 |
| Popis: | The final development stages and continuous operation testing of a micro-scale Organic Rankine Cycle (ORC) prototype running with R134a are presented. The prototype was designed to produce electricity by recovering heat from the hot jacket cooling water of a marine diesel engine at a temperature of 85 °C, using seawater as its heat sink. The study includes an analysis of the safety, dimensional, logistical and classification considerations that had to be taken into account considering the installation of the prototype in the engine room of a real newly built cruise ship. Furthermore, a special focus is given on the control system and the operation strategy of the prototype, which were developed to ensure its stand-alone, fully automated operation. The 24-h and 48-h continuous operation tests showcased the prototype’s capability of stable operation and robust response to load changes. Finally, the study includes a techno-economic assessment study of an upscaled prototype version, which highlighted the strong influence of the seawater temperature on its economic performance. In particular, in the base case scenario, the depreciated payback period was found equal to 11.54 and 10.31 years in the Mediterranean and the North Sea, respectively. |
| Databáze: | OpenAIRE |
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