Concept of waste heat storage from coal-fired power plants

• Autorzy: Tietze T. , Wójs K. , Sitka A. , Szulc P.
• Języki publikacji: EN

Abstrakty

EN

This paper presents an original concept of using heat storage units in waste heat recovery systems for coal-fired power plants. An analysis of selection of the optimal phase change material (PCM) has been performed and a sample construction of a heat storage unit in a waste heat recovery system has been presented. The heat storage units are designed for storing heat in a form of so called latent heat of fusion or solidification, released during a phase change of PCM. The most frequently used PCMs, such as paraffin wax, hydrated salts, and fatty acids, as well as possibilities of using them in combination with a PCM encapsulation material have been described. The most frequently used constructions of PCM encapsulations have also been presented. Difficulties encountered when designing heat storage units and methods of eliminating them have been described. Sample applications of heat storage units have been given.

Słowa kluczowe

EN

latent heat; phase change material; waste heat recovery

PL

materiały zmiennofazowe; wykorzystanie energii odpadowej

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2008
• Tom: Vol. 29, no. 4
• Strony: 195--204
• Opis fizyczny: Bibliogr. 11 poz.,

Twórcy

autor

Tietze T.

autor

Wójs K.

autor

Sitka A.

autor

Szulc P.

• Politechnika Wrocławska, Instytut Techniki Cieplnej i Mechaniki Płynów, Wybrzeże Wyspiańskiego 27, 50-340 Wrocław

Bibliografia

• 1. FARID M. M., KHUDHAIR A. M., RAZACK S. A. K., AL-HALLAJ S.: A review on phase change energy storage: materials and applications, Energy Conversion and Management, 2004, Vol. 45, 1597-1615.
• 2. CABEZA L. F., ILLA J., ROCA J., BADIA F., MEHLING H., HIEBLER S., ZIEGLER F.: Immersion corrosion tests on metal - salt hydrate pairs used for latent heat storage in the 32 to 36° C temperature range, Materials and Corrosion. 2001, Vol. 52, 140-146.
• 3. ZALBA A B., MARIN J. M., CABEZA L. F., MEHLING H.: Review on thermal energy storage with phase change: materials, heat transfer analysis and applications, Applied Thermal Engineering, 2003, Vol. 23, 251-283.
• 4. CABEZA L. F., ILLA J., ROCA J., BADIA F., MEHLING H., HIEBLER S., ZIEGLER F.: Middle term immersion corrosion tests on metal - salt hydrate pairs used latent heat storage in the 32 to 36° C temperature range, Materials and Corrosion. 2001, Vol. 52, 748-754.
• 5. MARIN J. M., ZALBA B., CABEZA L. F., MEHLING H.: Improvement of a thermal energy storage using plates with parrafin - graphite composite, International Journal of Heat and Mass Transfer, 2005, Vol. 48, 2561-2570.
• 6. CABEZA L. F., ILLA J., ROCA J., NOUGÉS M., MEHLING H., HIEBLER S.: Immersion corrosion tests on metal - salt hydrate pairs used for latent heat storage in the 48 to 58° C temperature range, Materials and Corrosion, 2002, Vol. 53, 902-907.
• 7. CABEZA L. F., ILLA J., ROCA J., NOUGEÉS M., MEHLING H., HIEBLER S.: Long term immersion corrosion tests on metal - PCM pairs used for latent heat storage in the 24 to 29° C temperature range, Materials and Corrosion, 2005, Vol. 56, No 1, 33-38.
• 8. MEHLING H., CABEZA L. F., HIPPELI S., HIEBLER S.: PCM - module to improve hot water heat stores with stratification, Renewable Energy, 2003, Vol. 28, 699-711.
• 9. STRITIH U.: An experimental study of enhanced heat transfer in rectangular PCM thermal storage, Int. J. of Heat and Mass Transfer, 2004, Vol. 47, 2841-2847.
• 10. ESEN M., DURMUŞ, A., DURMUŞ, A.: Geometric design of solar - aided latent heat store depending on various parameters and phase change materials, Solar Energy, 1998, Vol. 62, No. 1, 19-28.
• 11. GÓRZYŃSKA B, TIETZE T, WÓJS K.: Heat recovery from waste water in coal fired power plant, Int. Conf. on Power Engineering 2006, Wrocław, 8-10 November 2006, Archives of Energetics (Archiwum Energetyki), Vol. 26, spec. edition., 87-93 (in Polish).