Showing 1 - 10 of 16
Heavier crude oil, tighter environmental regulations and increased heavy-end upgrading in the petroleum industry are leading to the increased demand for hydrogen in oil refineries. Hence, hydrotreating and hydrocracking processes now play increasingly important roles in modern refineries....
Persistent link: https://www.econbiz.de/10010807293
includes thermal losses, has been developed and used to optimize the performance and design parameters of the engine. This … to determine the optimal parameters for acceptable operational gas pressure. When the optimal design parameters are …
Persistent link: https://www.econbiz.de/10010807554
The mathematical model of plate heat exchanger (PHE) is developed using decomposition of the plate on its main corrugated field, which cause major effect on heat transfer, and distribution zone, which influences mostly the hydraulic performance. Model is validated on experimental data for some...
Persistent link: https://www.econbiz.de/10010808110
In this paper, a linear programming model has been developed for the design and evaluation of biomass energy system …
Persistent link: https://www.econbiz.de/10010809428
The developments in design theory of plate heat exchangers, as a tool to increase heat recovery and efficiency of … energy usage, are discussed. The optimal design of a multi-pass plate-and-frame heat exchanger with mixed grouping of plates …
Persistent link: https://www.econbiz.de/10010809868
highlighted. A simple model which allows the design of the geometrical parameters of the heat exchangers, the regenerator and the …
Persistent link: https://www.econbiz.de/10010810850
This work adopts the ECCs (exergy composite curves) approach to explore the potential for ORC (organic Rankine cycle) process improvements. The method is used to explore different ORC configurations supported by a mathematical model representing a generic multi-pressure ORC cascade and developed...
Persistent link: https://www.econbiz.de/10010811586
using a case study based on a district heating network in South Wales, UK. A number of different design cases were simulated … of the district heating network was synthesised under different design cases using four district heating operating … variable supply temperature operating strategy was found to be beneficial in all cases. Design cases with minimum annual total …
Persistent link: https://www.econbiz.de/10011053430
The design of capacity and operation of CHCP (combined heat, cooling and power) plants applied to HVAC (heating … frequently interact in a complex way. Due to the strong fluctuations in thermal demands, the evaluation of a given design usually … cooling effectively supplied to the final user for a given design of the plant. This procedure serves to achieve a quick …
Persistent link: https://www.econbiz.de/10011054974
generation. Off-design operation will be executed, accompanied with a degraded performance of the ORC components especially the … expander. The design of the condensation temperature herein becomes crucial. It influences the ORC efficiency in both the CHP … conversion in the SPG mode will suffer from low expander efficiency. An optimum design of the condensation temperature involves a …
Persistent link: https://www.econbiz.de/10011077703