- Tytuł:
- Improving the efficiency of a gas-fueled ship power plant using a Waste Heat Recovery metal hydride system
- Autorzy:
-
Cherednichenko, Oleksandr
Tkach, Mykhaylo
Timoshevskiy, Boris
Havrysh, Valerii
Dotsenko, Serhii - Powiązania:
- https://bibliotekanauki.pl/articles/135623.pdf
- Data publikacji:
- 2019
- Wydawca:
- Akademia Morska w Szczecinie. Wydawnictwo AMSz
- Tematy:
-
waste heat recovery
low-speed engine
metal-hydride
hydrogen
LNG-powered ship
total waste heat utilization factor - Opis:
- Due to environmental, energy, and operating cost constraints, the number of liquefied natural gas (LNG)–powered ships is increasing. To avoid decreasing the thermal efficiency of two-stroke, low-speed diesel engines, high-pressure gas injection is used. The specific energy consumption of a gas fuel compressor is around 0.35 kWh/kg, which has a negative impact on the efficiency of ship power plants. To reduce the primary energy consumption of a gas fuel supply system, waste heat recovery (WHR) technologies may be used. This study investigated whether WHR metal hydride technology was suitable for improving the efficiency of low-grade heat waste in marine diesel engines. The key factors of this technology were revealed, and the design scheme was described. Working fluids were also analyzed, and a mathematical model of a WHR metal hydride plant was developed, and the results were represented. The calculations showed that the above technology could increase the operating power of a propulsion plant by 5.7–6.2%. The results demonstrate the possibility of applying WHR metal hydride equipment for gas fuel compressor drives in LNG-powered ships. The novelty of this study lies in the investigation of metal hydride technology for application in the waste heat recovery systems of LNG-powered ships.
- Źródło:
-
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2019, 59 (131); 9-15
1733-8670
2392-0378 - Pojawia się w:
- Zeszyty Naukowe Akademii Morskiej w Szczecinie
- Dostawca treści:
- Biblioteka Nauki
Artykuł