A Small-Scale ORC Energy Recovery System for Vehicular Application: Feasibility Analysis and Preliminary Components Design

2013 ◽  
Author(s):  
Roberto Capata ◽  
Enrico Sciubba
Keyword(s):  
Energy Recovery ◽  
Small Scale ◽  
Thermal Source ◽  
Preliminary Design ◽  
Energy Recovery System ◽  
Compact Heat Exchangers ◽  
Main Challenge ◽  
Recovery System ◽  
Main Components ◽  
System Layout

The paper analyses the feasibility of an “on-board” innovative and patented (patent ID RM2011 A 000671) ORC recovery system. The vehicle thermal source can be either a typical diesel engine (1400 cc) or a small gas turbine set (15–30 kW). The sensible heat recovered from the exhaust gases feeds the energy recovery system that can produce sufficient extra power to sustain the conditioning system and other auxiliaries. The concept is suitable for all types of thermally propelled vehicles, but it is studied here for automotive applications. The characteristics of the organic cycle-based recovery system are discussed, and a preliminary design of the main components, such as condenser, evaporator and pre-heater is presented. The main challenge are the imposed size and weight limitations that require a particular design for this compact heat exchangers. A possible system layout is analysed and the requirements for a prototypal application are investigated. At this stage of the project, no components costs evaluation is provided, in part because our scope is to demonstrate feasibility, and secondly most of the components are built in our own shop.

scholarly journals A Novel Energy Recovery System for Parallel Hybrid Hydraulic Excavator

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Wei Li ◽  
Baoyu Cao ◽  
Zhencai Zhu ◽  
Guoan Chen
Keyword(s):  
Mathematical Models ◽  
Energy Saving ◽  
Energy Recovery ◽  
Simulation Models ◽  
Hydraulic Excavator ◽  
Recovery Efficiency ◽  
Hydraulic Motor ◽  
Energy Recovery System ◽  
Recovery System ◽  
Main Components

Hydraulic excavator energy saving is important to relieve source shortage and protect environment. This paper mainly discusses the energy saving for the hybrid hydraulic excavator. By analyzing the excess energy of three hydraulic cylinders in the conventional hydraulic excavator, a new boom potential energy recovery system is proposed. The mathematical models of the main components including boom cylinder, hydraulic motor, and hydraulic accumulator are built. The natural frequency of the proposed energy recovery system is calculated based on the mathematical models. Meanwhile, the simulation models of the proposed system and a conventional energy recovery system are built by AMESim software. The results show that the proposed system is more effective than the conventional energy saving system. At last, the main components of the proposed energy recovery system including accumulator and hydraulic motor are analyzed for improving the energy recovery efficiency. The measures to improve the energy recovery efficiency of the proposed system are presented.

scholarly journals Racer: The Contractor’s View

1984 ◽  
Author(s):  
John T. Halkola
Keyword(s):  
Research And Development ◽  
Energy Recovery ◽  
Development Program ◽  
Rankine Cycle ◽  
Preliminary Design ◽  
Design Phase ◽  
Major Research ◽  
Technical Feasibility ◽  
Energy Recovery System ◽  
Recovery System

The RACER (RAnkine Cycle Energy Recovery) system has progressed from a technical feasibility investigation, through a competitive preliminary design phase and is now a major research and development program. Transition to a specific ship application is becoming more likely as milestones are accomplished. There are several views of any program: the sponsor’s, the contractor’s, the test facility’s and the ultimate user’s. This paper summarizes the contractor’s view.

A Comparison Between a Microturbine and a Scroll-Type Expander for a Small Scale ORC Energy Recovery System for Vehicular Application

2017 ◽  
Author(s):  
Fabio Pantano ◽  
Roberto Capata
Keyword(s):  
Energy Recovery ◽  
Ad Hoc ◽  
Optimal Choice ◽  
Cycle Performance ◽  
Small Scale ◽  
Air Conditioning System ◽  
Energy Recovery System ◽  
Expected Performance ◽  
Recovery System ◽  
Process Simulator

This paper deals with the comparison between an IFR microturbine and a scroll-type expander for the exploitation of an on board ORC energy recovery system. The sensible heat recovered from a common bus engine (typically 8000cc) feeds the energy recovery system that can generate sufficient extra power to sustain the air-conditioning system and part of the auxiliaries. The concept is suitable for all kind of thermally propelled vehicles, but the application considered here is specific for an urban bus. The ORC cycle performance is calculated by a Process Simulator (CAMEL Pro) and the results are discussed. A preliminary design of the considered expanders is proposed using ad-hoc made models implemented in MATLAB, the technical constraints inherent to each machine are listed and the expected performance is presented in order to perform the optimal choice of the expander.

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