Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger

Julia F. Haltiwanger; Jane H. Davidson

Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger

Julia F. Haltiwanger
, Jane H. Davidson

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A number of solar domestic hot water systems and many combined space and water heating systems have heat exchangers placed directly in the storage fluid to charge and/or discharge the tank. Operation of the heat exchanger produces a buoyancy-driven flow within the storage fluid. With a view toward controlling the flow field to increase heat transfer, a cylindrical baffle was inserted in a 350 liter cylindrical storage tank. The cylindrical baffle creates a 40mm annulus with the tank wall in which an immersed copper coil heat exchanger is located. The effects of the baffle on heat exchanger outlet temperature, cumulative energy depletion, and temperature distribution within the storage fluid were measured during discharge of an initially thermally stratified storage tank. The primary finding is that the presence of the baffle increases the rate of energy discharge and improves the quality of energy delivered.

Original language	English (US)
Title of host publication	American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.
Subtitle of host publication	Catch the Clean Energy Wave
Pages	502-520
Number of pages	19
State	Published - 2008
Event	SOLAR 2008: Catch the Clean Energy Wave, Including 37th ASES Annual Conference, 33rd National Passive Solar Conference and 3rd Renewable Energy Policy and Marketing Conference - San Diego, CA, United States Duration: May 3 2008 → May 8 2008

Publication series

Name	American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave
Volume	1

Other

Other	SOLAR 2008: Catch the Clean Energy Wave, Including 37th ASES Annual Conference, 33rd National Passive Solar Conference and 3rd Renewable Energy Policy and Marketing Conference
Country/Territory	United States
City	San Diego, CA
Period	5/3/08 → 5/8/08

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Find It

Find It at U of M Libraries

Cite this

Haltiwanger, J. F., & Davidson, J. H. (2008). Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger. In American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave (pp. 502-520). (American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave; Vol. 1).

Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger. / Haltiwanger, Julia F.; Davidson, Jane H.
American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave. 2008. p. 502-520 (American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Haltiwanger, JF & Davidson, JH 2008, Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger. in American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave. American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave, vol. 1, pp. 502-520, SOLAR 2008: Catch the Clean Energy Wave, Including 37th ASES Annual Conference, 33rd National Passive Solar Conference and 3rd Renewable Energy Policy and Marketing Conference, San Diego, CA, United States, 5/3/08.

Haltiwanger JF, Davidson JH. Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger. In American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave. 2008. p. 502-520. (American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave).

Haltiwanger, Julia F. ; Davidson, Jane H. / Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger. American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave. 2008. pp. 502-520 (American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave).

@inproceedings{2e0342b894b047a49453b5d07df54c53,

title = "Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger",

abstract = "A number of solar domestic hot water systems and many combined space and water heating systems have heat exchangers placed directly in the storage fluid to charge and/or discharge the tank. Operation of the heat exchanger produces a buoyancy-driven flow within the storage fluid. With a view toward controlling the flow field to increase heat transfer, a cylindrical baffle was inserted in a 350 liter cylindrical storage tank. The cylindrical baffle creates a 40mm annulus with the tank wall in which an immersed copper coil heat exchanger is located. The effects of the baffle on heat exchanger outlet temperature, cumulative energy depletion, and temperature distribution within the storage fluid were measured during discharge of an initially thermally stratified storage tank. The primary finding is that the presence of the baffle increases the rate of energy discharge and improves the quality of energy delivered.",

author = "Haltiwanger, \{Julia F.\} and Davidson, \{Jane H.\}",

year = "2008",

language = "English (US)",

isbn = "9781605604787",

series = "American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave",

pages = "502--520",

booktitle = "American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.",

note = "SOLAR 2008: Catch the Clean Energy Wave, Including 37th ASES Annual Conference, 33rd National Passive Solar Conference and 3rd Renewable Energy Policy and Marketing Conference ; Conference date: 03-05-2008 Through 08-05-2008",

}

TY - GEN

T1 - Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger

AU - Haltiwanger, Julia F.

AU - Davidson, Jane H.

PY - 2008

Y1 - 2008

N2 - A number of solar domestic hot water systems and many combined space and water heating systems have heat exchangers placed directly in the storage fluid to charge and/or discharge the tank. Operation of the heat exchanger produces a buoyancy-driven flow within the storage fluid. With a view toward controlling the flow field to increase heat transfer, a cylindrical baffle was inserted in a 350 liter cylindrical storage tank. The cylindrical baffle creates a 40mm annulus with the tank wall in which an immersed copper coil heat exchanger is located. The effects of the baffle on heat exchanger outlet temperature, cumulative energy depletion, and temperature distribution within the storage fluid were measured during discharge of an initially thermally stratified storage tank. The primary finding is that the presence of the baffle increases the rate of energy discharge and improves the quality of energy delivered.

AB - A number of solar domestic hot water systems and many combined space and water heating systems have heat exchangers placed directly in the storage fluid to charge and/or discharge the tank. Operation of the heat exchanger produces a buoyancy-driven flow within the storage fluid. With a view toward controlling the flow field to increase heat transfer, a cylindrical baffle was inserted in a 350 liter cylindrical storage tank. The cylindrical baffle creates a 40mm annulus with the tank wall in which an immersed copper coil heat exchanger is located. The effects of the baffle on heat exchanger outlet temperature, cumulative energy depletion, and temperature distribution within the storage fluid were measured during discharge of an initially thermally stratified storage tank. The primary finding is that the presence of the baffle increases the rate of energy discharge and improves the quality of energy delivered.

UR - https://www.scopus.com/pages/publications/84868615331

UR - https://www.scopus.com/pages/publications/84868615331#tab=citedBy

M3 - Conference contribution

AN - SCOPUS:84868615331

SN - 9781605604787

T3 - American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.: Catch the Clean Energy Wave

SP - 502

EP - 520

BT - American Solar Energy Society - SOLAR 2008, Including Proc. of 37th ASES Annual Conf., 33rd National Passive Solar Conf., 3rd Renewable Energy Policy and Marketing Conf.

T2 - SOLAR 2008: Catch the Clean Energy Wave, Including 37th ASES Annual Conference, 33rd National Passive Solar Conference and 3rd Renewable Energy Policy and Marketing Conference

Y2 - 3 May 2008 through 8 May 2008

ER -

Discharge experiments in an initially stratified vertical storage tank with an immersed baffled heat exchanger

Abstract

Publication series

Other

UN SDGs

Find It

Other files and links

Fingerprint

Cite this