Evaporator Design With Ammonia-Water Mixture as Working Fluid for Kalina KCS34 Cycle On Electric Power Plant
Keywords:
Kalina cycle, Heat exchanger, the working fluid, ammonia-water, LMTDAbstract
Natural hot spring can be used as a heat source for generating electricity by using a Kalina Cycle KCS34 technology with ammonia-water mixture as the working fluid. An Evaporator is one component of the Kalina KCS34 cycle to change the phase of the working fluid. The purpose of this research was to obtain evaporator design for the Kalina KCS34 cycle. Simulation using cycle tempo was conducted to define the inlet and outlet temperature of the evaporator. These temperatures will be used in designing the evaporator was designed using Log Mean Temperature Difference and energy balance methods. The dimension of the evaporator was evaluated with the pressure drop, the effectiveness of the heat exchanger, and standards. The evaporator was using 4 pass shell and tube type with inlet and outlet temperature of the hot fluid (heat source) at 80 °C and 50 °C respectively and the inlet and outlet temperature of the cold fluid (working fluid) at 45 °C and 64 °C respectively. The dimension of the evaporator is 2,5 m in length, 34 tubes per pass with 19,15 diameters. This results in the capacity of the evaporator at 77,41 kW and 75% effectiveness.
References
N. S, Muhammad Pramuda.,, Ridwan, M., Maulana, Iqbal., 2017. Optimasi Siklus Kalina KCS34 Pada Pemanfaatan Sumber Air Panas (Natural Hot Spring) Sebagai Pembangkit Listrik. Rekayasa Hijau, Vol. 1, pp. 43-53.
N. S, Muhammad Pramuda.,, Ridwan, M., Maulana, Iqbal., 2015. Studi Potensi Pemanfaatan Sumber Air Panas (Natural Hot Spring) Sebagai Pembangkit Listrik (Studi Kasus di Ciwidey, Jawa Barat). Seminar Nasional XIV Rekayasa dan Aplikasi Teknik Mesin di Industri, ISSN 1693-3168, pp. TKE 66-71.
Kern, Donald Q., 1983. Process Heat Transfer. Auckland Bogota – McGraw-Hill.
Thulukkanam, Kuppan., 2013. Heat Exchanger Design Handbook 2nd edition. Boca Raton – CRC Press.
Sinnot, R. K., 2005. Chemical Engineering Design 4th edition. Oxford – Elsevier Butterworth-Heinemann.
Smith, Eric M., 1997. Thermal Design of Heat Exchanger. Chichester – Jhon Wiley & Sons.
Indonesia investments, Energi Panas Bumi, available at: www.indonesiainvestments.com/id/bisnis/komoditas/energi-panas-bumi/item268?, accessed on March 10, 2019.
