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Title: Waste Heat-to-Power Using Scroll Expander for Organic Rankine Bottoming Cycle

Abstract

The objective of this program was to develop a novel, scalable scroll expander for conversion of waste heat to power; this was accomplished and demonstrated in both a bench-scale system as well as a full-scale system. The expander is a key component in Organic Rankine Cycle (ORC) waste heat recovery systems which are used to convert medium-grade waste heat to electric power in a wide range of industries. These types of waste heat recovery systems allow for the capture of energy that would otherwise just be exhausted to the atmosphere. A scroll expander has the benefit over other technologies of having high efficiency over a broad range of operating conditions. The speed range of the TIAX expander (1,200 to 3,600 RPM) enables the shaft power output to directly drive an electric generator and produce 60 Hz electric power without incurring the equipment costs or losses of electronic power conversion. This greatly simplifies integration with the plant electric infrastructure. The TIAX scroll expander will reduce the size, cost, and complexity of a small-scale waste heat recovery system, while increasing the system efficiency compared to the prevailing ORC technologies at similar scale. During this project, TIAX demonstrated the scroll expander in amore » bench-scale test setup to have isentropic efficiency of 70-75% and operated it successfully for ~200 hours with minimal wear. This same expander was then installed in a complete ORC system driven by a medium grade waste heat source to generate 5-7 kW of electrical power. Due to funding constraints, TIAX was unable to complete this phase of testing, although the initial results were promising and demonstrated the potential of the technology.« less

Authors:
 [1];  [1];  [1]
  1. TIAX LLC, Lexington, MA (United States)
Publication Date:
Research Org.:
TIAX LLC, Lexington, MA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A)
OSTI Identifier:
1360148
Report Number(s):
DE-EE0005767
D0659
DOE Contract Number:  
EE0005767
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 42 ENGINEERING; Waste heat recovery; low-grade; moderate temperature; scroll expander; organic Rankine cycle; energy harvesting

Citation Formats

Dieckmann, John, Smutzer, Chad, and Sinha, Jayanti. Waste Heat-to-Power Using Scroll Expander for Organic Rankine Bottoming Cycle. United States: N. p., 2017. Web. doi:10.2172/1360148.
Dieckmann, John, Smutzer, Chad, & Sinha, Jayanti. Waste Heat-to-Power Using Scroll Expander for Organic Rankine Bottoming Cycle. United States. doi:10.2172/1360148.
Dieckmann, John, Smutzer, Chad, and Sinha, Jayanti. Tue . "Waste Heat-to-Power Using Scroll Expander for Organic Rankine Bottoming Cycle". United States. doi:10.2172/1360148. https://www.osti.gov/servlets/purl/1360148.
@article{osti_1360148,
title = {Waste Heat-to-Power Using Scroll Expander for Organic Rankine Bottoming Cycle},
author = {Dieckmann, John and Smutzer, Chad and Sinha, Jayanti},
abstractNote = {The objective of this program was to develop a novel, scalable scroll expander for conversion of waste heat to power; this was accomplished and demonstrated in both a bench-scale system as well as a full-scale system. The expander is a key component in Organic Rankine Cycle (ORC) waste heat recovery systems which are used to convert medium-grade waste heat to electric power in a wide range of industries. These types of waste heat recovery systems allow for the capture of energy that would otherwise just be exhausted to the atmosphere. A scroll expander has the benefit over other technologies of having high efficiency over a broad range of operating conditions. The speed range of the TIAX expander (1,200 to 3,600 RPM) enables the shaft power output to directly drive an electric generator and produce 60 Hz electric power without incurring the equipment costs or losses of electronic power conversion. This greatly simplifies integration with the plant electric infrastructure. The TIAX scroll expander will reduce the size, cost, and complexity of a small-scale waste heat recovery system, while increasing the system efficiency compared to the prevailing ORC technologies at similar scale. During this project, TIAX demonstrated the scroll expander in a bench-scale test setup to have isentropic efficiency of 70-75% and operated it successfully for ~200 hours with minimal wear. This same expander was then installed in a complete ORC system driven by a medium grade waste heat source to generate 5-7 kW of electrical power. Due to funding constraints, TIAX was unable to complete this phase of testing, although the initial results were promising and demonstrated the potential of the technology.},
doi = {10.2172/1360148},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}

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