TY - JOUR
T1 - Thermodynamic analysis of a gamma type Stirling engine in an energy recovery system
AU - Sowale, Ayodeji
AU - Kolios, Athanasios J.
AU - Fidalgo, Beatriz
AU - Somorin, Tosin
AU - Parker, Alison
AU - Williams, Leon
AU - Collins, Matt
AU - McAdam, Ewan
AU - Tyrrel, Sean
PY - 2018/6/1
Y1 - 2018/6/1
N2 - The demand for better hygiene has increased the need for developing more effective sanitation systems and facilities for the safe disposal of human urine and faeces. Non-Sewered Sanitary systems are considered to be one of the promising alternative solutions to the existing flush toilet system. An example of these systems is the Nano Membrane Toilet (NMT) system being developed at Cranfield University, which targets the safe disposal of human waste while generating power and recovering water. The NMT will generate energy from the conversion of human waste with the use of a micro-combustor; the heat produced will power a Stirling engine connected to a linear alternator to generate electricity. This study presents a numerical investigation of the thermodynamic analysis and operational characteristics of a quasi steady state model of the gamma type Stirling engine integrated into a combustor in the back end of the NMT system. The effects of the working gas, at different temperatures, on the Stirling engine performance are also presented. The results show that with the heater temperature of 390 °C from the heat supply via conduction at 820 W from the flue gas, the Stirling engine generates a daily power output of 27 Wh/h at a frequency of 23.85 Hz.
AB - The demand for better hygiene has increased the need for developing more effective sanitation systems and facilities for the safe disposal of human urine and faeces. Non-Sewered Sanitary systems are considered to be one of the promising alternative solutions to the existing flush toilet system. An example of these systems is the Nano Membrane Toilet (NMT) system being developed at Cranfield University, which targets the safe disposal of human waste while generating power and recovering water. The NMT will generate energy from the conversion of human waste with the use of a micro-combustor; the heat produced will power a Stirling engine connected to a linear alternator to generate electricity. This study presents a numerical investigation of the thermodynamic analysis and operational characteristics of a quasi steady state model of the gamma type Stirling engine integrated into a combustor in the back end of the NMT system. The effects of the working gas, at different temperatures, on the Stirling engine performance are also presented. The results show that with the heater temperature of 390 °C from the heat supply via conduction at 820 W from the flue gas, the Stirling engine generates a daily power output of 27 Wh/h at a frequency of 23.85 Hz.
KW - energy recovery
KW - micro CHP
KW - nano membrane toilet
KW - stirling engine
UR - http://www.scopus.com/inward/record.url?scp=85044580102&partnerID=8YFLogxK
U2 - 10.1016/j.enconman.2018.03.085
DO - 10.1016/j.enconman.2018.03.085
M3 - Article
AN - SCOPUS:85044580102
SN - 0196-8904
VL - 165
SP - 528
EP - 540
JO - Energy Conversion and Management
JF - Energy Conversion and Management
ER -