A Theoretical and an Experimental Investigation of a Small Scale Trigeneration System: A Comparison Between Trigeneration and Separate Generation Systems

2003 ◽  
Author(s):  
Yaodong Wang ◽  
Tarik Al-Shemmeri
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Energy Input ◽  
Primary Energy ◽  
Small Scale ◽  
Generation System ◽  
Gas Emission ◽  
Environment Friendly ◽  
Co2 Gas ◽  
System A

A theoretical and an experimental investigation of a small scale trigeneration based on a diesel engine generator set is conducted. Comparing with the separate generation system, trigeneration saves primary energy input; and it reduces CO2 gas emission to the environment. A conclusion can be drawn that trigeneration is an environment friendly method, and it is financially feasible.

Exergetic Assessment of a Turbocharged Stationary Diesel Engine

2007 ◽  
Author(s):  
Mehmet Kanoglu ◽  
Ibrahim Dincer ◽  
Marc A. Rosen
Keyword(s):  
Diesel Engine ◽  
Diesel Engines ◽  
Power Output ◽  
Operating Conditions ◽  
Small Scale ◽  
Exergy Destruction ◽  
System A ◽  
Environment Temperature ◽  
Exergetic Analysis ◽  
Reference Environment

An exergetic analysis is presented of a turbocharged stationary diesel engine with a power output of about 19 MW. The system studied consists of a diesel engine, a turbine, a compressor, an intercooler and a radiator. The sites of exergy destructions are identified and quantified and the exergy efficiencies of various components determined. The exergy efficiency of the engine is found to be 40.5% at the specified reference state. The greatest exergy destruction occurs in the engine itself, which account for 84% of total exergy destruction in the system. A parametric investigation shows that the exergy losses of all system components increase with increasing reference-environment temperature. The results provide valuable information regarding the exergetic characteristics of turbocharged stationary diesel engines and appear to be useful for designers. The use of turbocharged stationary diesel engines has increased considerably in recent years as potential small-scale power generating solutions and in vehicle applications, due to their good power output, which helps overcome problems associated with some extreme operating conditions.

Evaluation of Green Building Technology by Introducing Micro Co-Generation System in Convenience Stores

2014 ◽  
Vol 935 ◽  
pp. 57-60 ◽  
Author(s):  
Suapphong Kritsanawonghong ◽  
Wei Jun Gao ◽  
Pawinee Iamtrakul ◽  
Soichiro Kuroki
Keyword(s):  
Energy Demand ◽  
New Technologies ◽  
Green Building ◽  
Energy Performance ◽  
Primary Energy ◽  
Energy Utilization ◽  
Small Scale ◽  
Skilled Workers ◽  
Generation System ◽  
Convenience Stores

The number of small scale buildings such as minimarts and convenience stores in Thailand has increased rapidly in the past few years. The interest of effective energy utilization has not been focused on the implementation of the new technologies due to high investment and lack of skilled workers for the maintenance. Comparing to the energy improvement results from several techniques at the present, the implementation of micro co-generation systems driven by natural gas engines to meet the energy demand of Thailands convenience stores has been proposed in this study by using Primary Energy Saving Ratio (PES) as the assessment index to evaluate the energy performance. The results also showed that PES value can be increased up to 45% due to the utilization of higher efficiencies of micro co-generation system. However, the selection of the reasonable capacity of the system depends on the characteristic of the load profile and the objective of the utilization of micro co-generation system. Furthermore, the electrical and thermal efficiencies of the micro co-generation system are important factors that cannot be ignored in an effect to enhance the performance of micro co-generation systems.

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