In the present study, thermo-economic analysis of a combined solid oxide fuel cell (SOFC) with a gas turbine, a generator-absorber heat exchanger (GAX) and heating process heat exchanger for heating, cooling and power production as a tri-generation system is conducted. Also, an external steam reformer is applied to convert methanol as oxygenated fuel to hydrogen for the electrochemical process ...

the purpose of this study is the utilization of furfural residue for heating energy and activated carbon production. to evaluate the energy production of the residue, bulk density, melting point, and heating value were measured. furthermore, moisture, ash, volatile compounds, fixed carbon, lignin, and elements were determined. ash and volatile content average were measured at 15.4% and 68.9%, r...

1. Proof of Theorem 4 Proof. It is easy to verify the communication cost, and thus we focus on the proof for the approximation ratio below. Similar to the proof of Theorem 1, the grid G is rewritten as {g1, · · · , gm} where m = (k + z) , and for each gj , its corresponding intersection ⋂T l=1Mlil is rewritten as Sj . Meanwhile, we denote the index-set indicating the outliers obtained by our al...

A completely randomized design, with 3×3 factorial arrangement, was conducted to test various ratios of dietary protein to energy (P/E) for rainbow trout, reared in brackish water. Three crude protein levels (35, 40 and 45%) and three energy levels (370, 400 and 430 Kcal/100g) at each protein level were utilized. Semi-purified diet containing fish meal, casein and gelatin as the sources of prot...

1389 C R E D IT : B E R N D T H IS S E N /D P A /C O R B IS Wood Energy: Predicting Costs THE POLICY FORUM “WOOD ENERGY IN America” (D. deB. Richter Jr. et al., 13 March, p. 1432) was a much-needed and long-overdue contribution to energy discussions. However, fossil fuels are not four times more expensive than wood per unit energy. Rather, most fossil fuels are still less expensive than wood in...