Energy efficient systems are the most desirable systems. Due to huge rise in energy prices and lack of availability of energy, the effective use of energy has become the need of time. Energy recovery both in heating systems as well as in air-conditioning systems saves a lot of energy. In this paper energy recovery system has been designed and optimized for central air-conditioning systems for v...

Certain classes of social and economic networks display a set of fundamentally similar characteristics: individuals benefit from being in groups, and the groups are internally organized in a hierarchical fashion where benefit is allocated unequally. To better understand how these networks evolve and maintain themselves, we developed a model that grows hierarchical networks through the local act...

In this paper, on the basis of Green Comprehensive Plan at Hakim Sabzevari University of Sabzevar, Iran, the application of active solar  systems for the dining hall is evaluated. The impact of solar systems and energy management designed for this hall on energy consumption and environment was investigated.This study measures the electricity and thermal energy consumption of the dining hall , p...

The purpose of this study is to conduct the financial and emission analysis of the Lahendong site as a case study of geothermal powerplant in Indonesia. The outputs of energy model in RETScreen worksheet are power capacity, electricity generation, annual GHG emission reduction, the Internal Rate Return (IRR) and payback period. The sensitivity analyses also were carried out at two scenarios (no...

To maximize the system-level heat integration, three retrofit concepts of waste heat recovery via organic Rankine cycle (ORC), in-depth boiler-turbine integration, and coupling of both are proposed, analyzed and comprehensively compared in terms of thermodynamic and economic performances. For thermodynamic analysis, exergy analysis is employed with grand composite curves illustrated to identify...

This work presents a mathematical model for the payback time of reusing electric vehicle batteries as residential energy storage systems from end life automotive application. The was developed using MATLAB software and calculates battery system (BESS) under different scenarios while considering daily electricity consumption profile UK household. results show that purchase price, BESS capacity, ...

This article investigates the economic viability of replacing high-voltage battery pack a power-split hybrid electric vehicle (HEV) and plug-in (PHEV) by estimating impact aging on fuel economy, drivability capability, range. The HEV is modeled first, an optimal energy management strategy based dynamic programming then implemented, experimental characterization data for cell presented. batterie...